We build your ads from proof.
Then judge them on profit.
Our intelligence engine reads what's already winning in your market, turns it into fresh creative, and measures every pound on what reaches your bank - not the number Meta takes credit for.
£100M+ scaled·DTC ecommerce & B2B lead gen·Ex-Ogilvy strategists
True revenue ÷ total spend, blended across channels. The number we actually optimise against.
The platform
We're not a generic agency. We run on our own engine.
The whole loop in one place: diagnose the account, produce the creative, measure the revenue. Here's what clients can't get anywhere else.
Command Centre
MER dashboard, honest attribution
True revenue ÷ total spend, Meta and Google blended. We don’t pretend Meta’s reported number is real - we measure what actually hits the bank.
Tusk Design
An AI creative agent that never sleeps
Tusk reads your account, finds proven gaps, and produces fresh ad concepts every week - refresh winners, fill proven gaps, and the occasional wildcard.
Creative Vault
A swipe file of what actually works
Every concept is grounded in a library of proven, long-running ads - so we build on evidence, not hunches.
Competitor Intelligence
See exactly what to steal
Meta Ad Library spying, longevity timelines, and format breakdowns across your category. If a competitor ad has run 180 days, it’s working.
Our point of view
We don't pretend Meta's number is real.
Every ad platform reports inflated, self-serving numbers. Chase them and you scale spend that loses money the moment COGS, shipping and returns come out. We optimise against the only figure your bank recognises: profit on ad spend, and blended efficiency across every channel.
Whether you sell DTC products or B2B contracts, the discipline is the same: build from proof, judge on profit - not the platform's fairy tales.
A 5x ROAS on a 20% margin product barely breaks even. We measure profit on ad spend - what’s left after COGS, shipping and returns - so you scale what actually makes money.
Platforms optimise for revenue they can claim credit for. We optimise for contribution margin - the pounds that survive the P&L and reach your account.
Blended MER for ecom, cost per qualified lead and pipeline for B2B. One honest figure you can run the business on - never each platform marking its own homework.
Run the maths
Your ROAS looks great. What's your profit?
ROAS counts revenue, not margin. Drop in your numbers to see the profit you actually keep on every pound of ad spend.
Your costs (% of revenue)
Contribution margin: 46%
Profit per £1 of ad spend
Profitable spend
- ROAS
- 4.00×
- Profit on ad spend (POAS)
- 1.84×
- Break-even ROAS
- 2.17×
- Profit after ad spend
- £8,400
Trusted by DTC and B2B brands
How it works
The Proof Loop, in one place.
Mine. Make. Measure. Whether you sell DTC products or B2B contracts, the engine works the same way - see the full method.
Mine
We run your account and competitors through the engine and surface the proof - the hooks and angles already winning in your market, and the gaps you’re not running yet.
Make
Tusk Design turns that proof into fresh ad concepts every week - grounded in long-running winners, not an account manager’s hunch.
Measure
Every pound is judged on profit - blended MER or cost per qualified lead, reconciled to your P&L. Budget follows what actually makes money.
The agency
Solo-but-superpowered. Boutique team, platform leverage.
Most agencies sell you hours and hope. Mammoth Agency sells you an engine. Because we build our own tooling, a lean senior team runs accounts with intelligence and creative output bigger shops can't match - and we're honest about what's actually working.
- Senior, ex-Ogilvy strategists - no junior account handlers learning on your spend.
- We built our own intelligence and creative-production platform - so a small team operates at the scale of a much bigger one.
- One team owns diagnosis, creative, and measurement end to end.
The engine
One lean team runs the whole loop.
Agency craft, software leverage - end to end.
FAQs
Straight answers.
A performance marketing agency manages paid advertising campaigns across platforms like Meta Ads and Google Ads, focusing on measurable results such as ROAS, CPA, and revenue growth. Mammoth Agency combines this with proprietary AI-powered competitive intelligence to give clients an unfair advantage.
Two ways. First, we build from proof: our intelligence engine analyses which competitor ads are actually scaling - the ones running 100+ days because they work - and builds your creative from what is proven, not from a hunch. Second, we judge on profit: every pound is measured on profit on ad spend and blended efficiency, reconciled to your bank, not the platform’s self-serving ROAS. Most agencies guess and report on vanity metrics. We do neither.
Profit. A 5x ROAS on a 20% margin product barely breaks even; a 3x ROAS on a 60% margin product genuinely makes money. We factor in COGS, shipping, and returns to measure profit on ad spend (POAS) and blended marketing efficiency (MER), then allocate budget to the spend that actually reaches your bank - not the revenue figure the platform takes credit for.
We specialise in Meta Ads (Facebook and Instagram) and Google Ads, including Search, Shopping, Performance Max, and YouTube campaigns.
Our pricing is tailored to your ad spend and goals. We work with brands spending from £5k to £500k+ per month on paid media. Book a free competitor analysis call to discuss your needs — no obligation.
Our free competitor intelligence report reveals the longest-running ads your competitors are scaling, including full scripts, hooks, and creative strategies. It is built using our proprietary AI tools and delivered with a personal walkthrough within 24 hours.
See what your account is leaving on the table.
We'll run your account and competitors through the engine and show you the proven gaps - free, back within 24 hours.
See your account's gaps→