Cortex is a specialist PPC agency for ecommerce brands. We plan, build and manage Meta and Google Ads accounts that lower your cost per acquisition and increase your return on ad spend — measured against real revenue, not vanity metrics.
Most ecommerce brands we speak to are running into one of these problems with their paid advertising. If any of this sounds like your account, we can help.
Spend is going up, revenue isn't keeping pace, and you're not sure whether it's the creative, the targeting, or the account structure that's to blame.
You're getting generic monthly reports, decisions take weeks, and the person you hired is not the person actually running your account.
Your account has worked fine at a smaller scale, but every time you try to increase budget, performance gets worse and you pull spend back.
Platform numbers, Shopify, and GA4 disagree. You can't tell how much of your reported revenue is actually incremental to what you'd have sold anyway.
The only way you can keep blended ROAS looking healthy is to run sitewide promotions every month — and margin is being quietly eaten alive.
Performance Max is a black box, conversion reporting looks inflated, and you can't answer simple questions about which campaign is driving new customers.
Cortex is a specialist PPC agency. We focus on Meta Ads and Google Ads — the two channels that drive the majority of paid revenue for most ecommerce brands — and we do them at a level of depth you won't get from a generalist.
Facebook and Instagram campaigns planned, built and managed by senior paid social specialists. We focus on account structure, bidding and testing — not vanity metrics.
Search, Shopping and Performance Max campaigns built around a clean feed and proper account architecture — so you know which dollar is driving which sale.
Dedicated senior strategist, weekly calls, Slack access, transparent reporting dashboard, and a monthly written review of what worked and what didn't.
We follow the same four-step engagement for every client. No surprises, no drawn-out onboarding — just a structured path from audit to scale.
We review your Meta and Google accounts, your tracking setup and your last 12 months of performance. You get a written report with specific opportunities and risks.
We agree clear goals, targets and a measurement plan. You sign off on the account structure, campaign roadmap and 90-day testing plan before any spend changes.
We rebuild or restructure your accounts, fix tracking, and launch the new campaign set. We run the old and new accounts in parallel so nothing breaks.
Weekly buying, daily optimisation, and a monthly strategic review. We scale spend as performance proves itself — and we're honest when it doesn't.
Real feedback from the people we work with, alongside a few representative outcomes from the last 12 months.
Cortex rebuilt our Meta and Google accounts in six weeks. Our cost per acquisition dropped by a third and we've doubled spend since — profitably. They're the first agency we've worked with that explains decisions in plain English.
A senior strategist will review your accounts and send you a written report within five working days — yours to keep, whether you choose to work with us or not.