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Jellyfish

Jellyfish

Paid Advertising & PPC London, United Kingdom
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Jellyfish is an integrated global digital marketing business and media-buying agency that helps brands plan, buy and optimize media across channels while uniting creative, data, cloud and CRM capabilities. As part of The Brandtech Group, it combines agency services with proprietary AI tools to improve speed, efficiency and effectiveness for mid-market and enterprise advertisers.

Jellyfish is a global digital marketing and media-buying agency that has carved out a distinct position by blending traditional agency services with proprietary AI tools. As part of The Brandtech Group, it operates across media, creative, data, cloud, and CRM, offering a single point of contact for brands that need coordinated execution across dozens of markets. The agency's tagline -- "Move. Faster. Smarter. Together." -- reflects its focus on speed and efficiency, powered by a suite of in-house AI platforms.

What sets Jellyfish apart is its investment in technology that goes beyond what most agencies offer. Tools like AI Studios (for rapid creative production), Now Next Soon (for AI-driven scenario modeling), J+ Bidding (for real-time bid optimization), and Share of Model (for tracking brand perception in LLMs) give clients capabilities that are usually associated with adtech vendors. The agency also runs a media in-housing platform that lets brands gradually take over their own media operations while still leaning on Jellyfish's expertise. This hybrid model is a strong draw for companies that want more control without losing access to a global team.

Pricing is custom and not publicly listed, which is typical for full-service agency engagements. Enterprise clients can expect six- or seven-figure annual retainers depending on media spend, market complexity, and service mix. Smaller project-based scopes are possible, but Jellyfish is clearly built for organizations with significant budgets and multi-market needs. On the training side, one-day courses on topics like SEO and Google Marketing Platform are transparently priced around $500-$700 per person, offering a lower-cost entry point for teams that want to upskill without a full agency retainer.

Jellyfish is best suited for mid-market and enterprise brands that need a global partner capable of handling everything from media planning to creative production to analytics. Companies that are exploring in-housing -- where they want to gradually bring media operations in-house while keeping an experienced agency on retainer -- will find the AI-powered in-housing platform particularly valuable. The agency's deep Google Marketing Platform and Amazon Ads certifications also make it a strong choice for brands that rely heavily on those ecosystems.

The agency's client roster includes names like Swarovski, Netflix, LVMH, and Virgin Atlantic, and its case studies show measurable results -- for example, driving 19% growth across 38 markets with 14% less budget for Swarovski. However, employee reviews on Glassdoor point to organizational instability, repeated restructurings, and occasional friction between proprietary tools and creative workflows. These are worth noting for any brand considering a long-term partnership.

Overall, Jellyfish is a capable and innovative agency for companies that need scale, AI-driven efficiency, and a partner that can support both managed services and in-housing transitions. Smaller businesses or those with limited budgets will likely find better value with smaller performance agencies, but for enterprise teams with complex, cross-market needs, Jellyfish is a strong contender.

Key Features

  • Comprehensive training and enablement offering that helps clients build internal

Team Size

N/A

Pros

  • Global, hybrid working environment that offers flexibility and the ability to collaborate

Cons

  • Reports that proprietary internal tools and processes can add complexity or confusion

Client Review Analysis

Employee reviews on Glassdoor highlight strong exposure to global brands and innovative AI tools, but also note organizational instability and management clarity issues.

Frequently Asked Questions

Jellyfish works across multiple sectors but is particularly strong in retail, technology, finance, and travel, with case studies showing success in each.
Jellyfish uses custom pricing based on the scope of work, media spend, and services required, typically offering a percentage of ad spend or a fixed retainer for mid-market and enterprise clients.
Team size varies by project complexity, but a standard engagement includes a dedicated account director, media buyer, analyst, and creative specialist, with access to a global pool of nearly 2,000 staff.
Yes, Jellyfish offers a media in-housing platform and training programs that enable clients to transition from full-service management to a hybrid or fully in-house model while retaining the agency's technology and expertise.
Jellyfish differentiates through its deep Google Marketing Platform and Amazon Ads partnerships, proprietary AI tools, and a strong focus on training and enablement, though it may lack the full-service creative breadth of larger holding companies.
Jellyfish has won Google measurement awards and Amazon Ads Partner Awards for improving media efficiency and brand storytelling, with documented cases of double-digit increases in ROAS and reduced cost per acquisition.
Jellyfish is best for mid-market and enterprise brands with significant media budgets, as its custom pricing and global infrastructure are designed for complex, multi-market campaigns rather than small local advertisers.
Jellyfish uses proprietary AI tools like AI Studios and Social Agents alongside certified integrations with Google Ads, Google Marketing Platform, Amazon Ads, and major CRM and analytics platforms.
Jellyfish builds custom measurement foundations using GA4, Adobe Analytics, and media mix modeling, providing real-time dashboards and regular performance reviews with actionable insights.
Onboarding typically starts with a discovery phase to understand business goals, followed by a tech audit, platform setup, and a 30-60 day ramp-up period where the agency optimizes campaigns before scaling spend.
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