Mammoth

Profit-led performance marketing for DTC & B2B

Web Development Advertising & Media Buying AI & LLM Development Marketing Strategy & Fractional CMO Social Media Marketing PPC & Paid Search London, England

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About Mammoth

Mammoth Agency is an AI-powered performance marketing agency for DTC ecommerce and B2B brands. We build ad creative from proof, not guesswork, and judge every campaign on profit, not platform vanity metrics.

Our edge is a proprietary competitive intelligence engine. We analyse which competitor ads are actually winning — the ones running 100+ days because they work — build your creative from what’s proven, and measure performance on profit on ad spend (POAS) and blended marketing efficiency ratio (MER), reconciled to your bank rather than the platform’s self-reported ROAS.

We specialise in Meta Ads, including Facebook and Instagram, and Google Ads, including Search, Shopping and Performance Max. We work with brands spending from £5k to £500k+ per month. Senior, ex-Ogilvy strategists run every account — no junior handlers learning on your spend.

What you get: honest measurement, AI-accelerated creative grounded in proven winners, and a single team that owns diagnosis, creative and measurement end to end. We’ve scaled £100M+ in ad spend across DTC and B2B.

Request a free competitor intelligence report at mammothagency.co.

Services

Capabilities listed on this profile.

AdvertisingDigital StrategyGenerative AISocial Media Marketing

Team & locations

London, England2 - 9 employeesFounded 2021More agencies here →

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