Influencer marketing agencies in the US have become critical partners for brands trying to boost their business. 

So, what exactly is an influencer marketing agency? Forget the simple idea of a matchmaker. Today’s top agencies are full-service strategic partners. They develop, manage, distribute, and optimize entire influencer campaigns from start to finish. 

But why can’t brands just do this themselves? Because finding the right fit is hard, proving ROI is harder, and even getting a reply can feel like a full-time job!

In this guide, we’ve introduced the best influencer marketing agencies in America, including Ainfluencer, Moburst, Hireinfluence, and The Shelf. Keep reading to learn all about their services, pricing, case studies, and user reviews.

How We Selected the Best Influencer Marketing Agencies in the US?

We first looked at agencies that keep delivering results for brands of different sizes and industries. 

Our selection was based on factors like campaign performance, client feedback, creative approach, and proven case studies. 

We also looked at how each agency positions itself. Do they focus on end-to-end campaign management or bold creative ideas? Do these companies provide data-driven strategies with measurable ROI?

To make the guide easier to navigate, we then grouped the agencies into categories such as full-service, creative-focused, and data-driven. This way, you can quickly find the type of partner that best fits your brand’s needs.

And now, keep reading to see which agency is your ideal partner!

Top Influencer Marketing Agencies in the U.S

Here are the best agencies in America, with happy users, comprehensive features, and a strong resume!

#1 Ainfluncer: The Best Overall Choice

Let’s begin with Ainfluencer, an all-in-one, global solution that blends a self-serve platform with expert agency support.

It connects brands to over 5 million opt-in Instagram, TikTok, and YouTube influencers across North America, Europe, Asia, and beyond.

This can make influencer marketing simpler, faster, and more budget-friendly. The agency has executed hundreds of innovative influencer campaigns for brands in various niches, from clothing to home appliances.

In addition to running successful micro- and nano-influencer campaigns, we’ve also delivered strong results with macro-influencer campaigns.

For example, one of Ainfluencer’s campaigns for CHEFMAN, a kitchen appliance brand, reached over 10 million people and scored an 18% engagement rate across Instagram and TikTok.

Key Services of Ainfluencer

• Work with an Expert Team: You get a dedicated team of influencer marketing pros to manage everything in your influencer campaign, from strategy to execution. No stress, no guesswork.
• Partner with Real, Opt-in Influencers: Ainfluencer only works with creators who’ve signed up themselves and are actively open to brand deals. There’s no scraped data or outdated contacts.
• Smart, Data-Driven Strategy: In Ainfluencer, campaigns are backed by performance data, audience insights, and creator history to help you get better results, not just more content.
• End-to-End Campaign Management: From finding the right influencers to personalized outreach, contracts, content reviews, and even gifting campaigns—it’s all handled.

Besides, payments go through a secure escrow system, so you only pay when work is delivered and approved.

• Content Creation + Paid Amplification: Ainfluencer also helps you create scroll-stopping content with real influencers. If you want more reach, they’ll boost the best-performing pieces through paid ads.
• Flexible Campaign Packages: More importantly, you can choose from pre-built campaign packages starting at $7,999. They’re designed for brands of all sizes—no hidden fees, no long-term lock-ins.

Who Is Ainfluencer Best For

Small to mid-sized brands and e-commerce businesses looking for affordable, fully managed influencer campaigns.

Want Ainfluencer’s expert team to create budget-friendly campaigns from A-Z? 

Sign Up With Ainfluencer For Free

Pricing of Ainfluencer

Ainfluencer offers four managed service packages:

• Turbo Viral – $29,999 (4 months): Work with 200 top-tier influencers to reach 100M+ followers.
• Super Scale – $15,000 (3 months): Collaborate with 75 high-performing influencers and reach 25M+ followers.
• Scale – $9,999 (2 months): Partner with 50 quality influencers and reach 7.5M+ followers.
• Viral – $7,999 (1 month): Team up with 25 macro influencers and reach 2.5M+ users.

Top Clients of Ainfluencer

Canine Journal, CHEFMAN, Millionstores, FTR Global, Diel Friends, Bon Cube, Inkling Scents, Cosynee Life.

What Users Say About Ainfluencer

While Ainfluencer is best known for its free influencer marketplace, some of the agency services, like helping brands work with micro-influencers, a big trend in 2025, are also liked by users. 

For instance, a reviewer named Sarah said it’s easy to connect with micro-influencers for multiple campaigns.

Another user says that Ainfluencer helped him boost his Amazon product sales and keyword rankings through micro and macro influencer campaigns.

Ready to work with our team to start your campaigns?

Book Your Free Demo

Full-Service Multi-Platform Influencer Marketing Agencies in the U.S

Now, we’re going to introduce the top American influencer agencies that handle every step of an influencer marketing campaign across multiple platforms.

They’re ideal for brands looking for a one-stop solution to reach audiences on Instagram, YouTube, TikTok, and more.

#2 HireInfluence

Founded in 2011, HireInfluence is an award-winning, premier influencer marketing agency in the food industry. 

It has offices in Houston and Los Angeles and focuses on “white glove campaign execution”. 

This means every step of your influencer campaign, like managing strategy, influencer selection, content creation, and more, is in their responsibility.

Another unique feature of Hireinfluence is to create human-to-human connections through experiential marketing rather than just ads. 

Since HireInfluence partners with TikTok Shop, it’s also known as one of the best TikTok influencer marketing agencies in the U.S.

For example, HireInfluence partnered with Walmart and MTV on the #MyMTVStyle campaign. They collaborated with Gen-Z TikTok creators to promote a limited-edition fashion line.

The campaign achieved a $1.50 CPM and $0.01 CPV, far below industry averages.

Key Services of Hireinfluence

• Experiential Marketing: They create unique on-site events and brand promotions to generate excitement and direct consumer engagement.
• Creative Talent Sourcing: The agency employs a hands-on, manual vetting process for influencers to ensure authentic brand alignment.
• Content Amplification: They utilize advanced strategies, including AR and 3D content, to maximize the reach of influencer-generated content.
• Platform Partnerships: It also partners with TikTok Shop and other exclusive features to provide data for its clients.

Who Is Hireinfluence Best For

Established, large-scale B2C brands in the CPG, travel, and entertainment.

Pricing of Hireinfluence

It’s project-based, but the minimum project size is $10,000.

Top Clients of Hireinfluence

McDonald’s, Oreo, the NFL, MTV, and Adidas.

What Users Say About HireInfluence

In general, HireInfluence is recommended by users due to its responsive team and for delivering great results. We didn’t find any negative points.

For instance, Justine Chapin is so happy with her campaign. She has received over 18 million impressions. She also likes their smooth project management, effective communication, and on-time delivery. 

#3 Open Influence

Open Influence is a global creator marketing agency, best known for “creator marketing excellence”. 

As a full-service influencer agency in the U.S, it provides end-to-end campaign management, from campaign strategy and creative development to influencer selection, content production, execution, and analytics.

More importantly, they produce high-quality content in-house through Studio OI. In fact, the agency covers everything from concept to post-production — including celebrity talent when needed.

So, if you’re looking for a creative partner, Open Influence is suitable. 

One of the successful partnerships of Open Influence was with Amazon Studios to promote the Jack Ryan series using stunt drivers, parkour athletes, and VFX creators.

The campaign generated 5.1M impressions across Instagram, YouTube, and Facebook. Besides, the engagement rates were nearly double the industry average.

Key Services of Open Influence

• Strategy & Creative Development: They craft attention-grabbing campaign concepts designed to be memorable and impactful.
• Paid Media Amplification: Open Influence uses strategic paid media to ensure creator content reaches the right audience at the right time.
• Studio OI: The company has an in-house premium content production service, managing everything from creative development to post-production.
• Omnichannel Campaigns: They go beyond social media by using new ideas like outdoor ads and live events.

Who Is Open Influence Best For

Fortune 500 and large enterprise brands in automotive, beauty, CPG, entertainment, fashion, and finance.

Pricing of Open Influence

• The minimum project budgets start around $75,000 – $100,000.

Top Clients of Open Influence

P&G, Google, Coca-Cola, L’Oreal, Netflix, Hyundai, and McDonald’s.

What Users Say About Open Influence

Unfortunately, Open Influence is not submitted to any reviewing websites. It usually works with mid-to-large brands or B2B clients, and they rarely post feedback online.

That said, based on numerous case studies, brands like the team for professionalism, creativity, and effective influencer marketing strategies.

For instance, Amy Moussa from Qdoba praised the team for being “incredibly organized and accommodating,” making even challenging timelines manageable.

#4. Viral Nation

Our next full-service influencer marketing agency in the U.S is Viral Nation, which is recognized as one of the world’s first influencer talent agencies.

In-house technology, media amplification, creator management, and content production are all you can expect from the Viral Nation.

For instance, one of their advanced technologies, CreatorOS and Secure, uses AI to vet talent, streamline workflows, prevent fraud, and boost brand safety.

Viral Nation also has a 92% client retention rate. Their PUBG Mobile campaign generated 224M social impressions and 128.6M media impressions.

Key Services of Viral Nation

• End-to-end campaign management: strategy, creator recruitment, execution, analytics, and reporting.
• AI-powered creator discovery, vetting, and brand safety via CreatorOS and Secure platforms.
• Paid media amplification and performance modeling.
• Extended services like community management, social-experiential campaigns, and reputation management.

Who Is Viral Nation Best For

Large brands and enterprises that want end-to-end influencer marketing.

Pricing of Viral Nation

Their minimum budget is $50,000/month.

Top Clients of Viral Nation

Bud Light, SmartWater, Crayola, Calm, and Modern States.

What Users Say About Viral Nation

Finding real user reviews for Viral Nation was tough. While their website has plenty of case studies, indie reviews are almost nonexistent!

 We didn’t find any reviews from brands, but there were some negative ones from influencers on a Reddit discussion.

For example, this angry user complains about multiple contract errors, late payments, and poor communication.

Another content creator in the same discussion mentions that working with Viral Nation involved too much back-and-forth and hassle, especially for small creators without an agent.

Performance & Data-Driven Influencer Marketing Agencies in the U.S

This group covers agencies that prioritize measurable results and analytics over just creative content.

Instead of focusing mainly on storytelling or branding, these agencies use data, tracking tools, and technology to optimize campaigns for ROI, conversions, engagement rates, and sales.

#5 NeoReach

NeoReach is both an influencer marketing platform and agency for global brands. They blend top creators with innovative technology and deep market insights.

Recognized as one of the best influencer search tools, NeoReach has managed over $250 million in influencer spend.

This proves their experience and expertise in running large-scale, data-backed campaigns for Fortune 500 companies.

One of NeoReach’s successful brand partnerships was with DraftKings. The agency developed a TikTok influencer campaign, which generated over 8 million views.

They actually used platform-specific data to optimize campaign performance.

Key Services of NeoReach

• Hybrid Model: They provide both fully-managed agency services and a self-service SaaS platform, catering to different client needs and budgets.
• Technology & Data: Their platform offers an API that can integrate over 400 custom data points into a brand’s in-house tools. They also offer sophisticated fraud detection.
• Full-Funnel Services: This includes paid media amplification, influencer gifting, UGC creation, event marketing, and custom market research reports.
• Creator Community: They have a private Discord for creators where they share brand deals and collab opportunities.

Who Is NeoReach Best For

Data-centric, enterprise-level companies

Pricing of NeoReach

Their agency services start at $50,000.

Top Clients of NeoReach

 Walmart, FanDuel, and FIFA.

What Users Say About NeoReach

As we already mentioned, NeoReach also operates as an influencer marketplace, which is pretty popular with customers. In general, users know it as a “reliable platform for influencer marketing and paid media”. 

In their opinions, the platform is intuitive and easy to find influencers. It also provides detailed analytics. While we couldn’t find specific reviews about their agency services, the marketplace features and user experience are widely appreciated.

For instance, Ryan, a senior marketing executive of a small business, is happy with NeoReach’s tools to find influencers on YouTube, Facebook, and blogs.

#6 Avenue Z

Avenue Z is another top influencer marketing agency in the U.S, which is located in New York. It also has offices in Miami, Orlando, and Boston.

With over 100 employees, the agency is an ideal solution for direct-to-consumer, technology, lifestyle, fintech, health, and wellness industries. 

What makes the agency a powerful partner is their AI-driven influencer matching and campaign optimization. In addition to this vital tech, they provide data-backed strategies for measurable growth, especially on YouTube.

For example, the agency helped a TikTok beauty brand achieve a 200% increase in sales (GMV) in 30 days.

Their strategy was clear: using data-driven audience insights to select influencers whose followers matched the target demographic. 

The influencers created optimized, engaging content for TikTok Shop. In the end, real-time performance tracking allowed Avenue Z to adjust the campaign for maximum impact.

Key Services of Avenue Z

• AI-Powered Optimization: They use AI tools to enhance brand visibility and conversion rates,
• Advanced Influencer Vetting: The agency uses data analytics to match brands with influencers,
• Performance Media Integration: It integrates performance media strategies with influencer campaigns.

Who Is Avenue Z Best For

Mid-market companies, especially in niches like fintech, healthcare, and consumer brands.

Pricing of Avenue Z

Their pricing starts at $5,000.

Top Clients of Avenue Z

Acorns, Klora, Rally, AdventHealth, and Orlando Economic Partnership.

What Users Say About Avenue Z

Avenue Z offers many services, and influencer marketing is one. Although there aren’t specific reviews about their influencer services, the agency has generally been praised for:

• Responsive and organized team,
• Meeting deadlines,
• Efficient communication via Slack and weekly Google Meet meetings.

Hayley Segar, a founder in New York, is satisfied with the agency’s Meta Ad campaigns. Avenue Z helped them increase their brand awareness, sales, web traffic, and engagement.

We couldn’t find any negative feedback from customers.

#7 The Outloud Group

As an official YouTube preferred agency partner, The Outloud Group started working in 2008 in Detroit. The agency’s exclusive access to platform insights and tools makes it one of the best YouTube influencer marketing agencies in the U.S.

It targets “high-growth consumer brands” that value high-quality traffic and customer acquisition. This company has had over 38,000 brand sponsorships and relationships with more than 92,000 creators.

Within one of these brand sponsorships, Athletic Greens teamed up with the agency to have influencers showcase AG1 as a healthy, premium lifestyle product. The campaign worked well, and over 20,000 people purchased the product.

Key Services of The Outloud Group

• Comprehensive Performance Measurement: They go beyond basic metrics like likes and shares. In fact, the agency assigns a dollar value to outcomes across the marketing funnel to provide a clear picture of campaign effectiveness,
• Advanced Creator Performance Data: They identify which influencers have consistently driven traffic and sales. This allows them to predict future performance accurately.
• Advanced Attribution Analysis: They also use tools like vanity URLs and promo codes to track and analyze user actions. That distinguishes between direct conversions and those influenced by the campaign but not directly attributable.

Who Is The Outloud Group Best For

Large enterprises in health and wellness, home goods, home security, food delivery, gaming, and freelance services.

Pricing of The Outloud Group

They offer custom pricing. However, their minimum project size is $100,000.

Top Clients of The Outloud Group

AG1, SimpliSafe, KitchenAid, Fiverr, Grubhub.

What Users Say About The Outloud Group

There aren’t many user reviews of The Outloud Group, but the ones available are positive. Users mention that the company:

• Understands their needs and designs strategies that align with them,
• Has transparent communication,
• Has a professional, knowledgeable team,
• Delivers projects on time,
• And “provides them with valuable and clear instructions throughout the engagement”.

One of the users even says that The Outloud Group helped them lower their overall YouTube CPA (Cost Per Acquisition).

#8 inBeat

The top influencer agency in Miami, inBeat, is known as a notable B2B influencer marketing agency. It specializes in a blend of paid media and micro-influencer marketing.

 inBeat promises to deliver measurable, data-driven results for performance-focused brands.

What makes them a top data-driven influencer agency in the US is their dedicated tools, like ROI calculators, ad mockup generators, and CPM calculators.

They also focus on creators. This means using a curated network of micro-influencers to generate authentic user-generated content (UGC).

In a partnership with Greenpark, inBeat leveraged micro-influencers to create UGC campaigns. Finally, they increased daily app installs by 6x and reduced Cost Per Install by 70%.

Key Services of inBeat

• Micro-Influencer & UGC Focus: They excel at connecting brands with a vast network of micro-influencers to create high volumes of authentic UGC at scale.
• Performance Creative: This agency also creates “performance creative” ads and posts to convert.
• Industry Specialization: They have a strong track record with DTC brands, CPG, mobile apps, and eCommerce companies. 
• Full-Service Capabilities: They offer paid media management, influencer marketing, UGC creation, static ad design, and creative strategy.

Who Is inBeat Best For

DTC, CPG, and mobile app brands.

Pricing of inBeat

The agency requires a minimum of $10,000 to start a project.

Top Clients of inBeat

New Balance, Nissan, Disney, Nordstrom, and Soylent.

What Users Say About inBeat

As a well-known UGC agency in the U.S, inBeat has acceptable scores on platforms like G2 (4.9), Capterra (5), and Clutch (4.9). 

Let’s see what users love about this agency and what they don’t:

inBeat is praised for its influencer selection process, which is easy and precise. Clear and streamlined communication with influencers is another thing users like about it. 

For example, a reviewer mentions that inBeat agency helped them reach over 80K impressions and 700 comments through influencer reach. Customers also love their responsive, professional, and organized team.

#9 Carusele

Another worth-considering option on the list of popular influencer marketing agencies in the U.S is Carusele. This company’s also described as one of the successful Instagram influencer marketing agencies. 

Carusele is actually designed to fix what they see as a broken traditional model. They use a rating system called qStack that selects influencers based on over 40 data points.

Then, they pick the top-performing pieces and boost them to the brand’s target audience using both paid ads and organic reach.

Carusele has worked with big brands. One of them is Revlon, a beauty brand that gained a 205% sales lift through influencer campaigns.

Key Services of Carusele

• Guaranteed Results: They offer campaigns with guaranteed outcomes. This provides a level of accountability that many brands seek.
• Content Performance Index™: Carusele tests all influencer content, ranks it, and only boosts the top-performing posts with paid ads.
• Full-Service & A La Carte Options: They offer full-service packages for hands-off campaigns or a la carte support for brands that want expert help but still stay involved.
• Industry Focus: The agency has strong expertise in CPG and retail.

Who Is Carusele Best For

CPG and retail brands looking for data-driven approaches.

Pricing of Carusele

Their plans begin at $20,000 for a single campaign.

Top Clients of Carusele

Revlon, Walgreens, Hallmark, PepsiCo, Tyson, and Wyndham Vacation Rentals.

What Users Say About Carusele

Unlike some agencies that have public reviews on platforms like G2 or Capterra, Carusele doesn’t have many user reviews available.

That doesn’t mean they are not good enough. In fact, Carusele mostly works with mid-to-large brands on data-heavy influencer campaigns, so clients usually keep things confidential. In this case, you can judge them by their case studies and measurable results.

#10 Moburst

Moburst is a mobile-first digital marketing agency and one of the leading Instagram influencer marketing agencies. 

With offices in New York City, San Francisco, Tel Aviv, and London, this agency takes a results-oriented approach. 

This social media marketing agency actually combines creative thinking, advanced technology, and data to solve tough digital challenges. The strategy that they executed for Upside (Cashback App) drove over 8,500 app installs.

Key Services of Moburst

• Mobile-First Specialization: Their deepest expertise is in mobile marketing, including App Store Optimization (ASO), app development, and mobile-centric media buying.
• Full-Service Digital Marketing: Beyond mobile, they offer SEO, social media management, video production, creator networks, and PR.
• Creator Network & Influencer Marketing: They leverage their creator network and influencer marketing services as part of a broader growth strategy, often to drive app installs or e-commerce conversions.
• Award-Winning Creative: This agency has received numerous awards for its creative campaigns, including being named one of Adweek’s Fastest Growing Agencies.

Who Is Moburst Best For

App-based businesses and mobile-first companies of all sizes.

Pricing of Moburst

Projects start from $5,000 per month.

Top Clients of Moburst

Google, Samsung, Uber, Reddit, and Pfizer.

What Users Say About Moburst

Clients generally seem happy with Moburst, based on reviews from G2 (4.4), Clutch (4.9), and DesignRush (4.9). We went through the reviews and noted both the good and the bad points:

The strengths: expertise in the mobile domain, creativity, experience in competitor market analysis, professional designers, App Store optimization, and an attentive and flexible team.

For instance, Andreas, who runs a small business, is satisfied with Moburst because the team really understood his brand and product, gave useful feedback, and encouraged new ideas like creating an app.

However, some users, like Dennis, say that Moburst’s licensing costs might be too high. This means the agency may not be ideal for smaller teams.

Another reviewer complains that:

“The billing system isn’t normal. Went through our partnership paying on top of the surplus from the month before. Not able to pivot quickly enough with a fluid budget. Creative wasn’t able to reach our audience.”

This can create frustration and lower campaign efficiency.

Content Creative Influencer Marketing Agencies in the U.S

And finally, we get to those American influencer agencies that focus on creative strategy and high-quality content.

#11 Obviously

Obviously is our first creative influencer marketing agency in the U.S. It’s best known for executing large-scale influencer campaigns. 

By now, the agency has had over 152,000 influencer collaborations, generating more than 5 billion organic impressions and creating over 425,000 unique pieces of content.

One of the agency’s unique features is producing Quick-Turn Content. This means they can create and publish content very quickly. So, brands can take advantage of trending topics, viral moments, or current events.

Key Services of Obviously

• Creator-Driven Commerce: They focus on leveraging influencer content to drive sales and conversions,
• Influencer Identification & Vetting: The agency uses a dedicated platform to identify and vet influencers that align with brand values,
• Analytics & Reporting: They also provide detailed performance metrics and insights to measure campaign effectiveness and ROI.

Who Is Obviously Best For

Mid-to-large-sized enterprises and brands in beauty, fashion, technology, and consumer goods.

Pricing of Obviously

They offer custom pricing.

Top Clients of Obviously

Ulta Beauty, Lyft, Amazon, Campbell’s.

What Users Say About Obviously

User feedback about Obviously is mostly limited to creators, not brands. In fact, you can hear that big brands like Google, Coca-Cola, and Lyft love the agency’s “white glove”, in its website testimonials. But indie reviewers? We didn’t find!

These clients are happy with Obviously’s scale and data-driven approach (powered by its own AI tools).

Influencers, on the other hand, don’t seem much happy! They say they spend time applying for campaigns but rarely hear back.

Another big concern is the agency’s contract terms: clauses like “work for hire” mean creators give up rights to the content they produce.

See this creator complains about payment issues on Reddit, for example.

#12 Socialfly

The New York-based influencer agency, Socialfly, was founded in 2012 and specializes in creating authentic, creative content.

It’s interesting to note that the agency has a female-led team. That brings a unique perspective to influencer marketing. 

Moreover, Socialfly is a full-service agency. This means they not only provide engaging content but also manage every step within the campaigns.

They’ve also collaborated with many brands, including Aspen Dental. The agency produced 123 pieces of on-brand content to enhance brand awareness.

The videos received 43,000 views, 442,000 impressions, and over 16,000 engagements.

Key Services of Socialfly

• Tailored Influencer Campaigns: They run different types of influencer campaigns, including gifting, whitelisting, giveaways, and brand ambassador programs,
• Creative Services: This includes custom content production, such as photography, video, and copywriting,
• Paid Media: Paid social campaigns optimized for performance and ROI.

Who Is Socialfly Best For

Mid-sized to large brands in industries such as beauty, wellness, lifestyle, and consumer goods.

Pricing of Socialfly

Their minimum project size typically falls between $5,000 and $10,000.

Top Clients of Socialfly

Max Films, NYC Landmarks, The Original Twist Hair Tie.

What Users Say About Socialfly

Reviews about Socialfly are not a lot, and all the existing ones are positive. However, that doesn’t mean the agency is 100% perfect. Let’s see what most users praise about this agency.

One user on DesignRush likes their combination strategy, which mixes analytics with creativity:

Another review highlights that Socialfly is good at analytics and provides valuable insights, in addition to a creative approach. 

This beauty and cosmetics client is happy with Socialfly because they gave the brand a fresh look, helped increase sales, kept communication clear, and brought strong social media expertise.

#13 The Shelf

As one of the leading influencer marketing agencies in the U.S, The Shelf offers data-first, performance-driven solutions for various industries, especially lifestyle and food.

With over a decade of experience, The Shelf strongly mixes creativity with data to turn complex campaigns into simple experiences.

Beyond a full-managed service, this agency offers an advanced SaaS platform and features like “Interest Graph” targeting. 

These help brands connect with different types of influencers whose audiences share specific interests and purchase intents.

One of the notable features of The Shelf, as a top content creative influencer agency, is the production of evergreen influencer-generated content. 

This type of content can fuel brand storytelling across paid, social, and site channels.

In one of the brand collabs, Lenox worked with The Shelf to promote its products. The agency created 253 pieces of content across Instagram, TikTok, and YouTube. 

This campaign saw a 786% increase in potential reach, which was nearly 8 times more people than expected.

Key Services of The Shelf

• SpliceLab™ & Creator Space: The Shelf offers tools like SpliceLab™, which turns influencer content into great ads, plus a large Creator Space for high-quality video shoots.
• Data-First Approach: They have a massive database of 465 million social profiles and their proprietary platform to analyze influencers and audiences.
• Optimization Flywheel: They use a four-step process that helps campaigns get better and more effective each time.
• Guaranteed Metrics: They offer full-service campaigns with guaranteed metrics and KPIs, providing certainty and clarity for clients.

Who Is The Shelf Best For

Well-funded, data-savvy, enterprise-level brands.

Pricing of The Shelf

Their minimum project size is $100,000+ with an hourly rate of $150 – $199 / hr.

Top Clients of The Shelf

Hulu, Sam’s Club, eos, The Honest Company, Neutrogena, and Universal Music Group.

What Users Say About The Shelf

Unfortunately, we couldn’t find valuable user reviews about The Shelf agency on rating platforms or forums, except two positive reviews on Clutch.

The customers are satisfied with their effective social media marketing, smooth workflow, high-quality content, and excellent communication. 

This digital marketing manager in a skincare company, for example, has been able to receive a “significant number of impressions and customer engagements”.

#14 Ubiquitous

Now, let’s meet one of the top creative influencer agencies, which is also known in TikTok influencer marketing. Ubiquitous was actually born from the CEO’s own experience.

He used to manually run a massively successful TikTok campaign before the platform was a mainstream marketing channel.

This agency manages to deliver viral, data-driven results. They also act as content matchmakers and connect brands with the right creators.

Ubiquitous has partnered with different brands. For instance, the agency ran a five-month influencer campaign for BlueChew on Instagram and TikTok.

In the end, the campaign reached 37 million views, with a cost of $5.47 per thousand impressions (CPM).

Key Services of Ubiquitous

• TikTok-Focused Strategy: They are widely recognized as one of the top US influencer marketing agencies for TikTok. 
• Full-Service Management: They offer end-to-end campaign management, including developing goals, choosing creators, crafting creative briefs, quality control, and real-time performance tracking.
• Data-Driven Approach: This includes rating creators based on median views and historical performance, plus using predictive analytics and machine learning to optimize strategy.
• Gen Z & Millennial Reach: They help brands get in front of Gen Z and Millennial audiences on TikTok, YouTube, and Instagram.

Who Is Ubiquitous Best For

Mid-to-enterprise level brands looking to run TikTok influencer marketing campaigns.

Pricing of Ubiquitous

Their minimum project size is $25,000. 

Top Clients of Ubiquitous

Disney, Amazon, Netflix, Target, McDonald’s, and Samsung.

What Users Say About Ubiquitous

After going through reviews of Ubiquitous on sites like Trustpilot and DesignRush, we noticed they generally fall into two main groups:

Satisfied customers appreciate their hands-on support, smooth process, high-quality content, great knowledge of TikTok, amazing customer service, and end-to-end strategy.

Check out this review, for example. Stephan reports that he has seen 7.5M views in total. He’s also happy that the agency did all the heavy lifting and saved him a ton of time.

On the other hand, dissatisfied users complain that the agency is not compliant with Canadian retail laws. 

One of the users on DesignRush is even angry with the Ubiquitous mentoring team. Akcel says their mentors pressured her to spend more money than she could afford.

#15 The Influencer Marketing Factory

The Influencer Marketing Factory is best known as a lifestyle influencer marketing agency. It’s also a well-known solution for influencer campaigns in music, food, and Instagram influencer marketing.

This agency creates authentic, scalable, and ROI-oriented campaigns on TikTok, Instagram, and YouTube. 

They actually have a comprehensive, A-to-Z approach. This means the agency manages every campaign detail from defining KPIs and finding influencers to execution and in-depth reporting.

It’s important to note that the IMF works with global influencers. For example, the agency had a brand partnership with SONY Music where it collaborated with 12 TikTok influencers across Spain, Argentina, and Italy.

The campaign, Atrévete, achieved 8 million users, 1.2 million likes, and an average engagement rate of 6%.

Key Services of The Influencer Marketing Factory

• Full-Service Campaigns: They manage entire campaigns, including KPI setting, target audience definition, influencer identification, contracting, content creation, and results tracking.
• Platform Specialization: While they are a multi-platform agency, they have a strong focus on TikTok, Instagram, and YouTube.
• Industry Focus: They serve a wide range of industries, including beauty, fashion, CPG, Apps, eCommerce, food & beverage, health & fitness, finance, gaming, music, and tech.
• ROI-Centric Reporting: The agency is an expert at calculating and demonstrating a strong ROI. They use tracking pixels and custom promo codes to build a clear funnel from reach to conversion.

Who Is The Influencer Marketing Factory Best For

Mid-to-large-sized brands in industries like tech, CPG, and e-commerce.

Pricing of The Influencer Marketing Factory

Their pricing starts at $15,000 for a one-time project.

Top Clients of The Influencer Marketing Factory

Google, Meta, Amazon, Sony Music, Universal Music, Dunkin’, Coca-Cola, and Hyundai.

What Users Say About The Influencer Marketing Factory

We examined different platforms like Agency Reviews and Clutch to see what real users like or don’t like about IMF. 

Users on Agency Reviews are totally happy with this agency, giving an overall rating of 5. They appreciate their responsiveness and openness to change, in-person communication, professionalism, and the ability to create different storylines.

One customer from Minneapolis even says that they tripled their leads using IMF’s campaigns. We couldn’t find any negative feedback from reviewers.

#16 LTK (LikeToKnow.it)

And the last influencer service in the U.S we’ll talk about is formerly rewardStyle, LTK.

It’s not a traditional agency but a massive, creator-centric affiliate platform and influencer network.

Founded by a creator in 2011, LTK’s philosophy is to empower lifestyle influencers to monetize their content and run their own businesses.

This agency connects brands with vetted creators and 40 million ready-to-buy shoppers through a full-funnel marketing platform.

Additionally, it works with more than 8,000 retail partners and has facilitated over $5 billion in annual retail sales.

One thing you shouldn’t ignore about LTK is their focus on measurable results, not just impressions. 

River Island, one of the brands that worked with the agency, experienced $3.50 in revenue and 163% sales, year-over-year

Key Services of LTK

• Creator Marketplace: Their main platform, LTK Connect, is a self-serve tool for brands to cast, manage, and pay creators for campaigns.
• Affiliate Marketing Focus:  LTK mainly focuses on affiliate marketing. Creators generate shoppable links for products, and when a follower purchases through that link, the creator earns a commission.
• Industry Specialization: It specializes in fashion, beauty, and home decor.
• Data & Analytics: The company provides brands with end-to-end reporting, AI-enriched data, and full-funnel measurement through its LTK 360 analytics suite.

Who Is LTK Best For

 Fashion, beauty, and home decor brands.

Pricing of LTK

It starts at $417/month ($5,000 annual).

Top Clients of LTK

Free People, Quince, Evereve, Victoria Emerson, Stanley, Mackenzie‑Childs.

What Users Say About LTK

Just like any agency, LTK has happy and unhappy customers. The team has received pretty good ratings on platforms like G2 (4.0), Capterra (4.2), and Software Advice (4.2). 

On G2, a user likes that the agency works with large and well-known content creators. At the same time, the customer complains that LTK is too expensive and doesn’t always bring good returns. They wish there were cheaper options like pay-per-performance or sending products to influencers (product gifting).

Another reviewer even calls the agency “overpriced for the results, while their team is “extremely professional, responsive, and on top of their game”.

To Wrap Up

We curated a list of the best influencer marketing agencies in the U.S. These options cater to different businesses, industries, and budgets.

Start by looking at each agency’s pricing, features, and who they’re best suited for. 

We’ve also included some user reviews and case studies to make your choice easier. 

All 16 agencies on our list are top picks, but Ainfluencer is recommended as a budget-friendly option for smaller brands. Plus, it has a global reach and connects with all kinds of influencers.

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