Senior GA4 & GTM Consultants – London

We help UK businesses stop guessing and start growing with accurate data.

TagGurus is a London-based digital analytics agency specialising in Google Analytics 4 and Google Tag Manager. Founded by a senior consultant with 15+ years of hands-on experience, we work with marketing teams and ecommerce businesses across the UK to fix broken tracking, deploy GA4 correctly, and make sure your data actually reflects your business.

Our Mission

Most businesses are making decisions based on incomplete or inaccurate data. GA4 setups that miss key events. GTM containers full of outdated tags. Conversion tracking that doesn't match reality.

We exist to fix that.

Every engagement at TagGurus is handled personally by a senior consultant — no juniors, no handoffs, no account managers in between. You get expert-level work with fast turnaround and direct communication from day one.

What We've Done

Over the past 15 years we have delivered analytics projects for brands including Topshop, Topman, Hostelworld, Graze, Inside Japan Tours and Cotopaxi — across retail, travel, food and lifestyle sectors. We have worked with both enterprise-scale businesses and small independent operators, which means we understand what good data looks like at every level.

What We Do

  • Google Analytics 4 setup, migration and audit

  • Google Tag Manager deployment and container management

  • Shopify and WooCommerce ecommerce tracking

  • Enhanced Conversions for Google Ads

  • Consent Mode v2 for UK privacy compliance

  • Social media pixel setup — Meta, LinkedIn, TikTok, Pinterest

  • CRO analytics and conversion tracking strategy

Why TagGurus

We are independent, senior and focused. No bloated agency overhead. No rotating team members. No generic solutions.

Just accurate tracking, clean data and clear recommendations delivered by someone who has been doing this for over 15 years across some of the UK's most recognised brands.

Remote-first. UK-based. Ready when you are.

"In God we trust. All others bring data." — W. Edwards Deming

At TagGurus, we make sure your data is worth trusting.