Top YouTube Influencer Marketing Agencies 2026

Founded in 1948 and headquartered in New York, Ogilvy is a global agency with more than 10,000 staff operating across creative, digital, content production, and influencer marketing disciplines. The agency runs full-service campaigns spanning social content, experiential activation, data-driven optimization, and business intelligence, with work documented across health, food and beverage, automotive, retail, and financial services. Clients include Dove, Coca-Cola, Burger King, Chevrolet, IKEA, Amnesty International, and Cadbury, among many others. Results from its case studies include the Eye Tracker platform for Supermax, which won Cannes Lions Gold, and the NASCAR Daytona 500 Twitter activation, credited as the brand's most engaging race ever. The agency collected two Grand Prix awards at Cannes Lions in 2024 and 2025, plus Gold and Silver across multiple categories, and took home wins at the 2025 Shorty Awards and the 2024 Global Influencer Marketing Awards for campaigns in both LATAM and EMEA.

With headquarters in New York, NY, Edelman is a global communications and digital marketing agency with a client roster spanning consumer goods, healthcare, food and beverage, and financial services. The agency runs full-funnel creator campaigns, social content production, experiential activations, and paid media, supported by in-house data analytics and measurement capabilities. Clients include Unilever, Heineken, ASICS, Samsung, IKEA, Formula 1, Dove, and McDonald's, among others. Campaign results on record include a 65% loyalty increase for Hellmann's through a nationwide condiment exchange activation, 1.76 billion people reached for ASICS's darkened running track campaign, and $15.7 billion raised for the Global Fund's 'Fight For What Counts' effort. The agency has won multiple Cannes Lions, including a 2023 Silver in Real-Time Response, and Shorty Awards across Social Good, Pharma and Healthcare, and Multi-Platform Partnership categories.

Formed in 2022 through dentsu's global creative consolidation, Dentsu Creative operates across more than 145 countries with a team of over 5,000 people. The agency runs full-funnel influencer and creator campaigns spanning TikTok content, paid social amplification, brand ambassadorship, and data-driven measurement, often integrating those workstreams with broader media and content production. Clients include Crayola, IKEA, Nutter Butter, Foot Locker, Klarna, Heineken, Novo Nordisk, Oreo, and Burger King, with recurring work across food and beverage, retail, tech, and consumer packaged goods. Crayola's Campaign for Creativity generated over 6 billion impressions and 4.1 million TikTok impressions alone, while a KPN campaign built around Dutch pop star MEAU achieved 14 million organic views, 8 million Spotify streams, and a 236% uplift in brand conversations. The agency collected five Cannes Lions across 2023 to 2025, including a 2025 Gold in the Breakthrough on a Budget category.

Founded and based in London, Billion Dollar Boy is an influencer marketing agency with a team of 201 to 500 people, running campaigns across influencer sourcing, paid social amplification, content production, and full-funnel creator strategy. The agency works across fashion, beauty, food and beverage, automotive, and luxury goods, with clients including PepsiCo, Nespresso, Bobbi Brown, BMW, and Dolce & Gabbana. Campaign results on record include a PepsiCo snack range activation where 123 influencers generated 54M impressions and a 79% purchase intent increase per a Nielsen Brand Effect study, and a Nespresso World Explorations campaign where six global influencers reached 9.5M people, with the Tokyo film becoming the brand's most-viewed content piece to date. The agency won Gold for Global Influencer Marketing Agency of the Year at the 2025 Global Influencer Marketing Awards, along with Gold for Best Influencer Marketing Platform or Technology and Creator Collaboration of the Year at the same event.

Founded in 2014 and headquartered in New York, Viral Nation is a full-service influencer and social marketing agency with a team of 201 to 500 people. The agency runs full-funnel creator campaigns, paid media, content production, and experiential activations, and also operates a talent representation arm. Clients span gaming, beauty, food and beverage, retail, and tech, and include Microsoft, Walmart, e.l.f. Cosmetics, MGM Resorts International, The Coca-Cola Company, Activision Blizzard, and Disney. Campaign results on record include e.l.f. selling 50,000 units of its Marriage Material Lip Duo in 10 hours via a TikTok Shop activation with Mikayla Nogueira, Walmart's Roblox metaverse launch generating 66M impressions and a 30-point brand lift increase, and a Call of Duty League ambassador program that grew subscriptions 32% year over year. The agency has taken home Gold at the 2023 and 2025 Shorty Awards, along with Silver at the 2024 Global Influencer Marketing Awards for best brand engagement campaign.

Founded and headquartered in London, Monks is a large-scale digital marketing and production agency with a team of more than 5,000 people, offering influencer marketing, social media, content production, and full-funnel creator campaigns across global markets. The agency's work spans brand ambassadorships, experiential activations, and real-time cultural moments, with case studies covering clients including Heinz, Netflix, BMW, Johnson & Johnson, and HelloFresh. A campaign for Heinz Mustard, built around Kendrick Lamar's viral Grammy moment and music producer Mustard, generated 1.1 billion earned media impressions, 3 million social engagements, and a 138% lift over social benchmarks. A HelloFresh influencer program featuring Davina McCall and 15 UK creators produced 461 posts and 5.5 million impressions, with creators averaging double their contracted content. The agency took a 2025 Silver at the Global Influencer Marketing Awards for best retail and e-commerce campaign, and works across food and beverage, entertainment, automotive, health, and gaming sectors.

Founded in 2016 and based in London, Buttermilk Agency runs influencer marketing and content campaigns with a clear focus on fashion, beauty, and luxury brands. The agency builds what it calls multi-tiered creator programmes, typically combining nano and micro creators with brand fans to generate UGC, drive awareness, and sustain always-on community activity across social platforms. Clients include Armani Beauty, Estée Lauder, Prada Beauty, Marc Jacobs, Gap, Moschino, Mugler, and Primark. A Primark campaign to support newly opened US stores activated 480 creators, exceeded content output targets by 173%, and won Gold for best always-on influencer campaign at the Partnership Awards. For Armani Beauty, creator posts from Alix Earle and Kate Holmes Peterson generated 20 million and 22 million views respectively. The agency reports activating more than 20,000 creators annually across its client base.

Based in Orlando, NeoReach is an influencer marketing agency with a team who runs full-funnel creator campaigns spanning strategy, influencer sourcing, paid social amplification, content production, and data analytics. The agency works across TikTok, YouTube, Instagram, Snapchat, and Twitch, and has managed multi-market programs in as many as 16 languages and regions simultaneously. Clients include Airbnb, Walmart, NVIDIA, Amazon, and the New York Times, with recurring work across entertainment, retail, consumer tech, and financial services. For TikTok's U.S. market entry, the agency activated over 100 influencers and drove 179M+ reach with a 6:1 ROI; a USIMS app campaign across 48 creators generated 371K+ downloads and a 31.88% app store conversion rate. The HISTORY Channel TikTok launch produced 12.2M views and $480.7K in influencer media value at a 1.92x ROI.

Founded in Stockholm in 2014, Cure Media is a creator marketing agency with a team of 51 to 200 people that has run more than 100,000 influencer collaborations since launch. The agency covers strategy, influencer sourcing, and campaign activation, with particular depth in fashion, beauty, and lifestyle, though its client roster extends to insurance, public sector recruitment, and food brands. Clients include L'Oreal, Sephora, H&M, Kappahl, Glossybox, Skincity, and Wolt, among others. In a 2022 campaign, Skincity shifted budget from TV and native advertising into influencer marketing and achieved a 40% sales increase; Moderna Försäkringar reported measurable traffic and sales lifts following each influencer publication in a pregnancy insurance campaign. The agency has received recognition at the Global Influencer Marketing Awards, winning Gold for Best Sport, Wellness and Fitness Campaign and Bronze for Most Creative Campaign in 2025, alongside a 2024 finalist nomination for Best Influencer Marketing Platform.

Founded and headquartered in Madrid, Spain, SAMY is a full-service influencer and social media marketing agency with a team of around 484 employees operating across more than 55 markets. Core work spans influencer sourcing and campaign management, UGC production, paid social amplification, TikTok ad content, and event-driven promotion, with a particular concentration in beauty, food and beverage, fashion, and automotive. Clients include L'Oréal Paris, Crocs, Durex, Kia Europe, The North Face, Krispy Kreme, and McLaren Automotive, among others. Campaign results on record include L'Oréal Paris Revitalift Laser reaching the number one best-selling position in its TikTok Shop category in 2025 after selling out within weeks of launch, and a Fazer chocolate campaign that returned 657% on marketing investment alongside a 291% increase in Instagram engagement. A rebrand campaign for Old Jamaica achieved 94% reach against a 50% target, generating 80 million-plus PR impressions and an 18% sales lift.

Founded in 2018 and based in London, Socially Powerful is a full-service influencer marketing agency with a team of 201 to 500 people, covering influencer campaigns, paid social amplification, content production, and data analytics across TikTok, Instagram, and YouTube. The agency has run retained and project-based work for clients including TikTok, Tefal, The Body Shop, IT Cosmetics, PUBG Mobile, Leffe, DAZN, and Lenovo Legion, with recurring work across beauty, gaming, food and beverage, and fitness. A campaign for TikTok's Western market launch generated over 500 million impressions across 15 countries and drove millions of app downloads. Tefal saw multiple product lines sell out after a programme spanning 500-plus creator collaborations and 70 million-plus impressions, while The Body Shop's 18-month Middle East ambassador programme produced 30 million impressions and a 15 percent sales uplift. The agency also created what it describes as the first cooking show on Instagram, producing the Leffe series that reached 4 million views.

Based in Los Angeles and operating for over 12 years, Open Influence is a full-service influencer marketing agency with a team of 51 to 200 that handles everything from creator sourcing and campaign strategy to content production and data analytics. The agency runs full-funnel creator campaigns across Instagram, TikTok, and YouTube, with particular depth in entertainment, automotive, food and beverage, and health and wellness categories. Clients include Uber, AT&T, Moderna, Disney Pixar, Subaru, Amazon Prime Video, Mercedes-Benz, and Lionsgate, among others. A campaign for Moderna using the #SpikevaxPartners creator network generated 503 million impressions and 32 million engagements at a 6.44% engagement rate. A narrative-driven creator campaign for Lionsgate's Ballerina, where creators completed stunt challenges at 87Eleven, produced 14 million views across 195 million targeted followers. The agency received a 2023 Shorty Award in the Shopping category.

Based in London with a team of 51 to 200 people, House of Marketers is an influencer marketing agency specialising in TikTok-first campaigns that span creator sourcing, content production, paid social amplification, and full-funnel strategy. The agency runs campaigns across beauty, K-beauty, mobile gaming, AI software, and app marketing, with particular depth in UGC production and performance-driven influencer work. Clients include Cetaphil, Rimmel London, COSRX, Beauty of Joseon, McAfee, and Tim Hortons, among others. Case study results include 85,644 app installs at a €2.29 CPI for social app Jodel across Germany, France, and Sweden, and a 59% brand awareness lift for Cetaphil from a two-day NYC pop-up campaign that generated 349 content pieces and 100% positive sentiment. Beauty of Joseon saw a 10x increase in social mentions and reached the number one best-selling sunscreen position on both Amazon and Sephora during its campaign period.

Linqia ranks at № 14 on the Influencer Power Index, with verified work and recognition across San Francisco, United States.

Sociata ranks at № 15 on the Influencer Power Index, with verified work and recognition across Dubai, United Arab Emirates.