Best Influencer Marketing Agencies in the USA (1970)
US creator partnerships and always-on programs treated as paid acquisition.
The serious agencies in this category stopped calling it influencer marketing years ago. To them it's a paid channel that happens to use people instead of stock libraries. Sourcing, briefing, FTC-compliant disclosure, usage rights, paid amplification via whitelisting or Spark Ads, and an incremental sales number at the end of the month. PR theater doesn't survive contact with that workflow.
We surfaced the highest-scoring US shops from the Growth Partner Index's Influencer & Creator Marketing category. Every profile carries cited public evidence and a Confidence Score that weighs disclosure posture, platform fluency, and actual outcomes. Not follower counts in the case study.
If you're running creator commerce, the operators that move the needle are the ones with named platform specialists: TikTok Shop, Instagram, YouTube, Amazon Live. The reporting you want shows cost-per-acquired-customer, not vanity reach charted in a quarterly slide.
The shortlist
Ranked by Growth Partner Confidence Score
- 1inBeat88.5/100
inBeat is a performance creative agency that turns UGC and influencer partnerships into high-converting ads, with expert…
- 2Kaleido & Co.72/100
UK creative shop blending creator talent with performance ad production.
- 3Shortform Studio71/100
Creator-led UGC studio producing platform-native short-form at paid-test velocity.
- 4Collectively70.9/100
Collectively is an AI-powered creator marketing agency that has contracted over 7,500 creators across 1,700-plus campaig…
- 5House of Marketers69.3/100
House of Marketers is a global influencer marketing agency specializing in TikTok, Instagram, and YouTube, offering infl…
- 6The Shelf68.9/100
The Shelf is a data-first influencer marketing agency that uses a proprietary SaaS platform to execute full-funnel …
- 7Carusele68.5/100
Carusele is an award-winning influencer marketing agency that develops and manages data-driven influencer programs for l…
- 8Viral Nation68.5/100
Viral Nation is a global digital marketing agency that specializes in influencer marketing, talent representation, and s…
- 9Open Influence68.5/100
Open Influence is a global influencer marketing agency that provides full-service creator marketing solutions, including…
- 10Socially Powerful68.5/100
Socially Powerful is a global influencer marketing agency that uses its proprietary AI technology, ARIA, to deliver data…
How we picked
Picks are agencies tagged to the influencer-creator category, sorted by Confidence Score. We weight disclosure posture and creative-media integration for this list.
Read the full Growth Partner Confidence Score methodology.
Frequently asked questions
- Influencer agency vs. influencer platform. Which do I need?
- Platforms like CreatorIQ, GRIN, and Aspire give you software and a marketplace. Agencies give you operators. The people sourcing, briefing, negotiating, amplifying, and measuring. Programs that scale usually run both, and stop arguing about it.
- Should I pay influencers per post or per outcome?
- Flat fees plus usage rights are the market standard. Pure performance deals exist but rarely with top-tier creators, who have alternatives. The cleanest structure most of the time is a flat fee plus whitelisted paid amplification, with incremental sales contribution as the scoreboard.
- How big a budget do I need to work with an influencer agency?
- Most reputable shops want at least $20k–$50k/mo in program spend, including talent, paid amplification, and agency fee. Below that line, an in-house coordinator or a freelancer will usually get more work done per dollar.