Company lists · Data refreshed September 2026
Top 25 Gtm systems integrators based in the United Kingdom
RevenueBase identified 322 gtm systems integrators headquartered in the United Kingdom as of September 2026 and tracks 1,990 professional contacts across them, including 620 with verified work emails and 190 with mobile numbers. London is the largest hub.
This list covers gtm systems integrators 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest gtm systems integrators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 89 | ||||
“April Six is now Marketbridge, a Go-to-Market® growth firm.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 59 | ||||
“Consult us for.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 47 | ||||
“Simkiss Control Systems, part of United Infrastructure Group, is a trusted name in the field of industrial automation and control systems.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 40 | ||||
“SAS Wireless is an experienced, UK based systems integrator and services provider for the wireless communications industry.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 36 | ||||
“We believe that more ‘sales and marketing minds’ within your business will create more pipeline, close more deals, and make your customer base grow.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 | ||||
“ScaleWise helps ambitious B2B tech companies optimise their GTM strategy and secure the expertise needed to drive capital efficient growth.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 | ||||
“Master Systems Integrator OKTO Technologies is a leader in the design, development & installation of Smart Building Technology for- SuperPrime Residential - Luxury Hospitality -…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 | ||||
“TBG Solutions Ltd – Skilled Integrators specialising in test, measurement, control and automation.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 | ||||
“Tailored Solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 | ||||
“We partner with category defining and industry dominating AI & Enterprise software vendors to hire the top 1% GTM talent.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | Torpedo Factory GroupStrong evidence | 27 | |||
“AMAZING DIGITAL EXPERIENCES THAT WOW BY DESIGN Torpedo Factory Group is a Master Systems Integrator providing professional services for Intelligent Environments & Smart Buildings…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 | ||||
“Optimal are now SciY!” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 | ||||
Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 | ||||
“In 2011, Resonance was born from the desire to seamlessly link PR, marketing and the sales funnel together.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 | ||||
“Global Connections with European Gateway At European Gateway, we are dedicated to connecting technology companies and customers on a global scale.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 | ||||
“ATM Systems Integrator | Total Airport Solutions Systems Interface, a dynamic project-based organisation, is a UK based Global Air Traffic Management (ATM) systems integrator…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 | ||||
“Magnus Consulting is a B2B growth consultancy, helping ambitious mid-market, enterprise and PE-backed businesses turn growth ambition into a system that can actually deliver.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 | ||||
“We built Techtonic with one goal in mind, to further Create, develop and advise GTM Sales & Technical teams.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 | ||||
“Industrial IT is a leading systems integrator and distributor of industrial-grade IT and communication solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | LaistungStrong evidence | 15 | |||
“Laistung is a pioneering system integrator and bespoke machine manufacturer specializing in industrial automation solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 | ||||
“About Us Golconda is a leading supplier of PC/PLC/SCADA systems for control applications in process industries.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 | ||||
“Alternative Systems Protection is a high quality systems integrator of Access control, Turnstiles, Automatic Gates and Barriers, Wireless, computerised and integrated systems and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 | ||||
“For contract manufacturers in electronics, life sciences, and packaging, scaling requires more than a typical agency, it demands a specialist growth partner.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 | ||||
“Clear Vertical is a growth agency that helps ambitious businesses scale through strategic marketing, digital transformation and smarter use of technology.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | NXT HorizonIndirect evidence | 12 | |||
“NXT Horizon is a growth consultancy and experiential marketing partner that helps B2B manufacturers and high-value industries thrive in complex, fast-moving markets.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 322 gtm systems integrators based in the United Kingdom
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Gtm systems integrators based in the United Kingdom at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 gtm systems integrators, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “gtm systems integrators”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among gtm systems integrators, 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 an evidence 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, 620 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 3, 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.
Gtm systems integrators by metro
- Gtm systems integrators in London148
Frequently asked
How many gtm systems integrators are there based in the United Kingdom?
RevenueBase identified 322 gtm systems integrators 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?
April SIX, headquartered in London, tops this list with the largest team on record.
Which city has the most gtm systems integrators?
London leads with 148 headquartered companies, followed by Manchester (9) and Sheffield (4).
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 620 verified decision-maker contacts tracked across these 322 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 3, 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 SmartSearch, 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.
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