Company lists · Data refreshed September 2026

Top 25 Ga4 analytics consulting firms based in the United Kingdom

RevenueBase identified 61 ga4 analytics consulting firms headquartered in the United Kingdom as of September 2026 and tracks 443 professional contacts across them, including 151 with verified work emails. London is the largest hub.

This list covers ga4 analytics consulting firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
61Companies
443Contacts tracked
151Verified emails
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The 25 largest ga4 analytics consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 61 ga4 analytics consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to ga4 analytics consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 21, 2026201-500216 contacts →

Partial evidence

“Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202611-5029 contacts →

Indirect evidence

“With our expert consultants, we unlock the power of your data and transform your Marketing capabilities, building sustainable value in your organisation in a privacy respectful…”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202611-5020 contacts →

Indirect evidence

“At Hamilton, we bridge the gap between your organisation and your clients.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1016 contacts →

Indirect evidence

“We have served different business in different sectors like (Transport, Finance, Debt Management,Accounting, Media, Events etc) for over 10 years and we are happy to to have…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1015 contacts →

Indirect evidence

“THE BEGINNING Matt Trimmer started ivantage in 2002.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 21, 20261-1014 contacts →

Indirect evidence

“Digimasters is a digital consultancy founded by Adam Nagus the M.D.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 21, 202611-5012 contacts →

Partial evidence

“At Growth Savvy, we specialize in digital analytics, advertising and conversion optimization:#You'll understand what drives success and find new growth opportunities through…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Unlock.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceBelfast, United KingdomHQ checked Sep 21, 20261-107 contacts →

Partial evidence

“GlowMetrics is a leading digital analytics and marketing agency based in Belfast and Dublin.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceWrexham, United KingdomHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Most teams are making expensive decisions on numbers they don't fully trust.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 21, 20261-105 contacts →

Partial evidence

“The Fusion Analytics team are masters in successfully integrating and interrogating data to power business performance.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceStafford, United KingdomHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Want to leap 9 steps ahead of your competition?”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceChandlers Ford, United KingdomHQ checked Sep 21, 20261-105 contacts →

Partial evidence

“Polka Dot Data to work with companies who are passionate about using web analytics data to grow their revenue and profits.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 21, 20261-105 contacts →

Partial evidence

“Magnusson Analytica – Empowering Data-Driven Growth Magnusson Analytica is a leading analytics consultancy and certified Amplitude partner, providing end-to-end data solutions…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceStourbridge, United KingdomHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“As approved Google Partners and qualified Google Analytics specialists, Great Ape Digital offer consultancy to website owners looking to increase ROI and gain not only relevant…”

Source: RevenueBase Database · checked Sep 21, 2026
16Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261-103 contacts →

Strong evidence

“We're a Google Analytics agency specialising in GA4, advanced tracking via Google Tag Manager & Looker Studio.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidencePeterborough, United KingdomHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Data driven & consultant led.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceBrighton, United KingdomHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“Know Analytics is a marketing and web analytics consultancy built to be your long-term data partner.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceEdinburgh, United KingdomHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Friendly Data Analytics Consultancy Services From data science methodology to our snazzy modelling technology, we’ve got you covered in digital marketing, CRO, SEO, CRM, and…”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceLondon, United KingdomHQ checked Sep 21, 20261-102 contacts →

Strong evidence

“20/20 Strategy is a boutique strategy consulting firm, operating at the intersection between advanced analytics and strategic decision-making.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceSouthampton, United KingdomHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Growth Cart is a rapidly growing digital analytics & advertising consultancy.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceUnited KingdomHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“Fix your analytics; develop your competitive differentiation.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“OktoAnalytics are a close group of web analytics experts with a wide range of industry experience specialising in Google products and ensuring that clients are getting the most…”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceBedford, United KingdomHQ checked Sep 21, 20261-101 contacts →

Partial evidence

Analytics Training specialises in providing bespoke analytics training sessions for businesses and individuals.”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceAlford, United KingdomHQ checked Sep 21, 20261-101 contacts →

Strong evidence

GA4/GTM Consulting & Web Analytics Training.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 61 ga4 analytics consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 151 reachable decision-makers.

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Ga4 analytics consulting firms based in the United Kingdom at a glance

As of Sep 21, 2026
34.1%Verified-email coverage
7.3Average contacts per company
1-10Median size (employees)
41.0%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
5
201-500
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 61 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ga4 analytics consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “ga4 analytics consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ga4 analytics consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among ga4 analytics consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 151 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Ga4 analytics consulting firms by metro

  • Ga4 analytics consulting firms in London25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ga4 analytics consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many ga4 analytics consulting firms are there based in the United Kingdom?

RevenueBase identified 61 ga4 analytics consulting firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Quantzig, headquartered in London, tops this list with the largest team on record.

Which city has the most ga4 analytics consulting firms?

London leads with 25 headquartered companies, followed by Bedford (2) and Bristol (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 151 verified decision-maker contacts tracked across these 61 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.