Short answer: there’s no single “best” UGC agency — the right one depends on your goals, budget, platform, and whether you need scale or niche creators. Below are five highly regarded options (with why they stand out) plus quick guidance for choosing the right partner.

Top UGC agencies to consider

• Viral Nation — full-service, global creator agency with proprietary creator tech and enterprise-level capabilities (good for big-brand, performance + awareness campaigns). (viralnation.com)
• inBeat — performance-focused UGC & micro-/nano‑influencer campaigns built to scale paid ads and lower CPA (good for DTC/CPG brands that want measurable ROAS). (inbeat.co)
• Social Native — platform + agency that automates sourcing, licensing and scaling UGC (good when you need lots of curated UGC assets and streamlined rights management). (inbeat.co)
• The UGC Agency — ROI- and conversion-focused UGC specialist that emphasizes rapid production and data-driven optimization (good for brands focused on direct-response). (theugc.agency)
• Moburst — strong at mobile-first and TikTok-first UGC creative, fast turnarounds and app/UA-centered campaigns (good for mobile apps and short-form-first strategies). (moburst.com)

Other reputable options and platforms widely used by brands: Collabstr, Trend.io / UGC SHOP, NeoReach, Grin and many boutique UGC shops — check them if you want different price points, niches, or self-service platforms. (collabstr.com)

How to pick the right agency (quick checklist)

• Goal: awareness/brand vs direct-response/ROAS — pick full-service creative + community agency for awareness, performance-focused UGC partners for sales/ads.
• Platform: TikTok/Instagram-first vs YouTube/longer-form — choose agencies known for that format. (moburst.com)
• Scale & speed: need hundreds of assets quickly → platform/automation-driven agencies; need bespoke, high-touch creators → boutique networks. (inbeat.co)
• Creator quality & vetting: ask about audience authenticity checks, sample creative and rights/licensing for ads. (inbeat.co)
• Budget & pricing model: retainer vs per‑asset vs marketplace fees — compare like-for-like deliverables and usage rights. (collabstr.com)

Quick next steps (actionable)

1. Shortlist 3 agencies above that match your scale/platform needs.
2. Ask each for: case studies in your vertical, sample UGC creatives, pricing per asset, turnaround time, and rights/licensing terms.
3. Run a small test campaign (1–3 creatives) and measure CPA / CTR / watch time before committing to scale.

If you tell me one thing — your primary goal (brand awareness vs direct sales), platform (TikTok, Meta, YouTube), and rough monthly budget — I’ll make a focused 2–3 agency shortlist and a suggested test plan.