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Product

One operating system for your whole growth function.

Connect your tools, give the AI your context, run expert-built systems and trace every activity to your North Star.

Book a strategy session Get your free GTM Gap Report

Architecture

How GREX is built

  1. 01

    Your tools

    Your CRM, ad accounts, analytics, docs and call notes, plus 1,000+ more through integrations.

    • HubSpot
    • Google Ads
    • Meta Ads
    • LinkedIn
    • Google Analytics
    • Search Console
    • Drive
    • Call notes
    • +1,000 more
  2. 02

    The brain

    Your data, knowledge and experiment history in one place. It decides what the model sees, so the output is specific to you.

    The brain

    Data normalisation
    Experimentation engine
    Knowledge base
  3. 03

    The model

    Claude today. GREX connects through MCP, so you’re not tied to one model.

    Claude Headless MCP Model-agnostic
  4. 04

    Two loops

    Experiments test ideas. Winners get automated.

    Ideate Run Measure Experiment loop
    Winners move across
    Build Run Optimise Automation loop
  5. 05

    Growth expert in the loop

    Your GTM engineer and channel experts review, approve and guide.

    Review Approve Guide
  6. 06

    Reporting

    Every activity traced to your North Star.

    Every activity connected to outcomes

Growth systems

40+ expert-built systems across SEO, GEO, outbound, paid, lifecycle and content.

Browse all systems
View system

LinkedIn outbound engine

Run LinkedIn outbound as a system, target on signals, connect a warmed fleet without pitching.

Build the signal list
Enrich & tier
Connect across the fleet
Run the multichannel sequence
Work replies & book
Score & refine
Start
Built & verified by Tom Dewhurst, Tristan Gillen & Alex Robinson · Growth Division
View system

Meta paid social engine

Run Meta paid social as a creative-testing machine, CAPI tracking, Advantage+ broad campaigns, weekly creative sprints.

Lock in tracking & CAPI
Build & load the creative sprint
Run Advantage+ broad campaign
Read creative performance in Motion
Validate with third-party attribution
Brief next sprint from winners
Start
Built & verified by Tom Dewhurst, Tristan Gillen & Alex Robinson · Growth Division
View system

Programmatic & technical SEO engine

Build scaled programmatic pages from a real data source, keep the technical layer clean.

Cluster & validate the keyword universe
Build pages from structured data
Submit & monitor indexation
Technical audit, crawl & Core Web Vitals
On-page optimisation (when rankings stall)
Measure & compound
Start
Built & verified by Tom Dewhurst, Tristan Gillen & Alex Robinson · Growth Division
View system

LinkedIn outbound engine

Run LinkedIn outbound as a system, target on signals, connect a warmed fleet without pitching.

View system

Meta paid social engine

Run Meta paid social as a creative-testing machine, CAPI tracking, Advantage+ broad campaigns, weekly creative sprints.

View system

Programmatic & technical SEO engine

Build scaled programmatic pages from a real data source, keep the technical layer clean.

Integrations

Your tools

Connect what you already use, plus 1,000+ more through integrations.

  • HubSpot
  • Google Ads
  • Meta Ads
  • LinkedIn
  • Google Analytics
  • Search Console
  • Google Drive
  • Slack
  • Gong
  • Zoom
  • Klaviyo
  • Customer.io
  • Semrush
  • Ahrefs
  • Apollo
  • Clay
  • Instantly
  • HeyReach
  • Webflow
  • PostHog
  • TikTok
  • YouTube
  • Reddit
  • 1,000+more

Next launch: Week of 3 Nov 2026 · 1 slot left

See what GREX would build for you.

In 30 minutes we find where your go-to-market is leaking and map the first system we’d launch. You leave with a plan whether or not you work with us.

Book a strategy session Get your free GTM Gap Report