Company lists · Data refreshed September 2026

Top 25 Integration companies based in the United Kingdom

Name: Integration companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 574 companies tracked

RevenueBase identified 574 integration companies headquartered in the United Kingdom as of September 2026 and tracks 11,681 professional contacts across them, including 3,047 with verified work emails. London is the largest hub.

This list covers integration companies 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

574Companies

11,681Contacts tracked

3,047Verified emails

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The 25 largest integration companies based in the United Kingdom

Ranked by team size

Top 25 of 574 integration companies 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 integration companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	KCA Deutag	Indirect evidence	Portlethen, United KingdomHQ checked Sep 21, 2026	10001+	4,109 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
2	Arrow ECS United Kingdom	Indirect evidence	Harrogate, United KingdomHQ checked Sep 21, 2026	501-1,000	373 contacts →
	Indirect evidence “Arrow ECS is a technology enablement company that brings innovative IT solutions to market to solve complex business challenges.” Source: RevenueBase Database · checked Sep 21, 2026
3	Capula	Strong evidence	Stone, United KingdomHQ checked Sep 21, 2026	201-500	351 contacts →
	Strong evidence “What we do \| With a focus on operational technology and digital transformation, Capula has been a leader in advanced system integration for decades; optimising efficiency &…” Source: RevenueBase Database · checked Sep 21, 2026
4	ITI Group	Indirect evidence	Sheffield, United KingdomHQ checked Sep 21, 2026	201-500	234 contacts →
	Indirect evidence “For organisations facing the compounding threats of ageing assets, a retiring workforce, and evolving cyber attacks, the status quo is no longer an option.” Source: RevenueBase Database · checked Sep 21, 2026
5	Eappsys	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	193 contacts →
	Indirect evidence “eAppSys is a systems integrator that is focused exclusively on supporting the core enterprise application systems within Oracle On-Premise and Cloud Applications.” Source: RevenueBase Database · checked Sep 21, 2026
6	Platned	Indirect evidence	Gerrards Cross, United KingdomHQ checked Sep 21, 2026	201-500	190 contacts →
	Indirect evidence “Platned helps organisations simplify complex change and get more value from their enterprise technology investments.” Source: RevenueBase Database · checked Sep 21, 2026
7	Maintel Azzurri Communications	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	186 contacts →
	Indirect evidence “Maintel is a leading systems integrator and managed services provider, delivering effortless communications solutions to a broad spectrum of businesses in the UK and…” Source: RevenueBase Database · checked Sep 21, 2026
8	BGI	Indirect evidence	Cardiff, United KingdomHQ checked Sep 21, 2026	201-500	150 contacts →
	Indirect evidence “At BGI, we’re more than just a workplace-we’re a global community of diverse brands, where people grow together.” Source: RevenueBase Database · checked Sep 21, 2026
9	Next 15	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	140 contacts →
	Indirect evidence “We combine proprietary data, AI-powered technology, and human intelligence to solve complex problems for the world's most ambitious brands.” Source: RevenueBase Database · checked Sep 21, 2026
10	CINOS	Indirect evidence	Frimley, United KingdomHQ checked Sep 21, 2026	51-200	119 contacts →
	Indirect evidence “Cinos is an industry-leading, agile, and innovative systems integrator.” Source: RevenueBase Database · checked Sep 21, 2026
11	European Electronique	Indirect evidence	Eynsham, United KingdomHQ checked Sep 21, 2026	51-200	117 contacts →
	Indirect evidence “European Electronique is a leading UK systems Integrator, specialising in the delivery of secure technology platforms including Hybrid IT, Cyber Security and Networking…” Source: RevenueBase Database · checked Sep 21, 2026
12	PCE Automation	Indirect evidence	Beccles, United KingdomHQ checked Sep 21, 2026	201-500	105 contacts →
	Indirect evidence “Formed in 1961, PCE Automation Ltd has established itself as an automation solutions provider for a wide range of product handling, assembling and testing systems with a worldwide…” Source: RevenueBase Database · checked Sep 21, 2026
13	HF Group	Indirect evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	201-500	99 contacts →
	Indirect evidence “The name HF occupies an unprecedented position in industry.” Source: RevenueBase Database · checked Sep 21, 2026
14	Horbury Group	Indirect evidence	Rotherham, United KingdomHQ checked Sep 21, 2026	501-1,000	96 contacts →
	Indirect evidence “The Group companies can offer a collaborative approach to large projects, providing substantial logistical reductions for main contractors.” Source: RevenueBase Database · checked Sep 21, 2026
15	Twistedpair LTD	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 21, 2026	51-200	83 contacts →
	Indirect evidence “Connecting people, places, and possibilities through transformative workplace technology.” Source: RevenueBase Database · checked Sep 21, 2026
16	KCP Network	Indirect evidence	Bracknell, United KingdomHQ checked Sep 21, 2026	51-200	81 contacts →
	Indirect evidence “KCP \| Network Solutions and Design \| Software Development \| Automation Since 2008 KCP built a legacy of trust with our global customers by becoming a leading provider of SMART…” Source: RevenueBase Database · checked Sep 21, 2026
17	BIT Wave Solutions Limited	Indirect evidence	Reading, United KingdomHQ checked Sep 21, 2026	11-50	75 contacts →
	Indirect evidence “Headquartered at Reading, Berkshire in United Kingdom, Bit Wave Solutions enables global businesses to build their future by directing clients’ innovation & customization agenda.” Source: RevenueBase Database · checked Sep 21, 2026
18	Infoteck Solutions	Strong evidence	Holborn, United KingdomHQ checked Sep 21, 2026	51-200	72 contacts →
	Strong evidence “Infoteck Solutions: Empowering Integration and Automation Welcome to Infoteck Solutions, your trusted partner in seamless integration and efficient automation.” Source: RevenueBase Database · checked Sep 21, 2026
19	Bluesmith Information Systems	Indirect evidence	Leeds, United KingdomHQ checked Sep 21, 2026	51-200	71 contacts →
	Indirect evidence “Bluesmith specialises in bespoke systems for Blue Chip and government clients.” Source: RevenueBase Database · checked Sep 21, 2026
20	Denca Controls LTD	Indirect evidence	Widnes, United KingdomHQ checked Sep 21, 2026	51-200	66 contacts →
	Indirect evidence “Renowned across numerous sectors as 'the systems integrator of choice', we have built a reputation on delivering high quality, value-for-money solutions that enhance production…” Source: RevenueBase Database · checked Sep 21, 2026
21	Whizamet	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	65 contacts →
	Indirect evidence “At Whizamet, we are a team of experienced professionals dedicated to empowering organizations to unlock the full potential of digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
22	Forfusion LTD	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 21, 2026	51-200	63 contacts →
	Indirect evidence “Empowering through digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
23	Advisority	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	61 contacts →
	Indirect evidence “We are the trusted IT integrator that specialises in making your work flow.” Source: RevenueBase Database · checked Sep 21, 2026
24	Orbit Partners	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Indirect evidence “Our mission is to empower business leaders.” Source: RevenueBase Database · checked Sep 21, 2026
25	ID Systems UK	Indirect evidence	Cumbernauld, United KingdomHQ checked Sep 21, 2026	51-200	57 contacts →
	Indirect evidence “Since 2002, we have been providing turnkey solutions which bring together our core skills of mechanical, electrical, instrumentation, control and automation, and telemetry…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: integration companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names integration companies.
Partial evidence: Its own public description names part of integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name integration companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 574 integration companies based in the United Kingdom

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Integration companies based in the United Kingdom at a glance

As of Sep 21, 2026

26.1%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

34.5%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

275

11-50

194

51-200

201-500

501-1,000

1,001-5,000

10001+

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 574 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 integration companies, 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 “integration companies”. 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 integration companies), 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 integration companies, 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, 3,047 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.

Integration companies by metro

Integration companies in London198

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 integration companies, 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 integration companies are there based in the United Kingdom?

RevenueBase identified 574 integration companies 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?

KCA Deutag, headquartered in Portlethen, tops this list with the largest team on record.

Which city has the most integration companies?

London leads with 198 headquartered companies, followed by Glasgow (12) and Manchester (12).

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 3,047 verified decision-maker contacts tracked across these 574 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.