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Large holdings (Accenture Song, VML, Publicis...) are not the only ones who know how to manage the digital growth internationally. More agencies compact, less than 5,000 employees, combine expertise, agility and global presence. Here is our 2025 selection: five structures capable of deploying SEO, paid ads, data and content on several markets without the heaviness of mastodons.

1. Growth Room

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What makes it unique

  • Full funnel model : the team combines paid acquisition, natural referencing and automation to manage the entire customer cycle.
  • Key offers : Growth Ads, Facebook Ads agency and Growth Marketing Training.
  • Customer cases : CAC divided by 7 for Poiscaille and +200,000 leads generated for Dreem.
  • Organization : a majority of senior experts, “remote” process to launch a multilingual campaign in more than 72 hours.

Why choose it? For a rapid growth in 2-3 markets without wasting time in hierarchical layers.

2. Jellyfish

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  • Annual income 2025: $750 MILLION
  • Google Marketing Platform Partner Label ; strong generative AI R&D
  • Benefits : paid media, SEO, data science, internal training “Jellyfish Academy”.
  • Ported : hubs Europe, Americas, APAC and Middle East, ideal for orchestration global campaigns in real time.

Main advantage: media power comparable to historical networks, with Flexibility of a 2K team.

3. DEPT®

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  • Webby Awards “Network of the Year 2025” for the 4th year.
  • CA 2024: > $500 MILLION, half generated in the United States.
  • 50% tech/50% marketing positioning : digital products, e-commerce, data & media.
  • Customers : Google, Strava, DoorDash, eBay.
  • Culture : agile sprints “Fast. Forward. Future.” to deliver an international MVP in a few weeks.

Why is it great? La technological density without giving up creativity, ideal for redesigning multilingual platforms.

4. Brainlabs

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  • Effective: more than 900 people, hubs London, New York, New York, Austin, Singapore.
  • External growth : 9 acquisitions since 2023 (Sparro in APAC, Fanbytes, etc.).
  • Specialties : SEA/SEM, retail media, data science, proprietary AI “Cortex”.
  • Recent gain : UNICEF USA (media AOR)

To remember: one Test-and-learn culture radical to boost ROAS and share of voice, even in hyper-competitive markets.

5. Croud

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  • Settlements : London (HQ), New York, Dubai, Atlanta; 24/7 coverage.
  • Effective : 500 employees + network of 2,400 specialists, ultra-scalable hybrid model.
  • Focus : media strategy, social creativity, SEO, analytics.
  • Recognition : ranked “Best Places to Work 2025” by The Sunday Times (304 UK employees).

The most : extreme flexibility — we mobilize a pool of local talent for each market without multiplying fixed costs.

How to choose your international “boutique” agency?

Before comparing offers, define a precise evaluation framework: your indicators, field presence, technological expertise, team composition and references that prove the agency's ability to succeed in your sector.

  1. Quantified goals : leads, MRR, ROAS, require a scorecard unique.
  2. Local coverage : check the availability of native teams in your target markets.
  3. Stack tech : GA4, HubSpot, Salesforce, generative AI... choose an agency that is already certified.
  4. Team structure : favor a Senior core <10 people to stay agile.
  5. Similar references : ask for three international cases comparable to your sector.

To go further, explore our guides:

Our answers to your questions

What are the top 5 media agencies in the world?

In 2026, rankings combining revenue and creative awards place Accenture Song, VML, Dentsu Creative, Ogilvy and Publicis Media in mind.

What is the best digital agency in France?

For an approach performance-driven, Growth Room dominates the market; for major transformation programs, Publicis Sapient remains the reference.

What is the role of a digital agency?

She designs and executes a digital marketing strategy complete: SEO audit, content creation, ad campaign management, web development, data analytics and CRM. Objectives: visibility, Leads, growth and involvement measured continuously.

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