Company lists · Data refreshed September 2026

Top 25 Enterprise data integration companies based in London, United Kingdom

Name: Enterprise data integration companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 104 companies tracked

RevenueBase identified 104 enterprise data integration companies headquartered in London, United Kingdom as of September 2026 and tracks 1,083 professional contacts across them, including 555 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers enterprise data integration companies headquartered in London, 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 28, 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 28, 2026 86% judged on-target in blind review

104Companies

1,083Contacts tracked

555Verified emails

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The 25 largest enterprise data integration companies based in London, United Kingdom

Ranked by team size

Top 25 of 104 enterprise data integration companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise data 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	Gresham	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	336 contacts →
	Strong evidence “Gresham is a global leader in enterprise data automation solutions for the financial services industry.” Source: RevenueBase Database · checked Sep 28, 2026
2	Datavid	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	85 contacts →
	Strong evidence “Make the most of your data with enterprise-ready software that helps you extract, enrich, and discover your company’s most valuable knowledge.” Source: RevenueBase Database · checked Sep 28, 2026
3	Nephos Technologies	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “Nephos Technologies is an independent data systems integrator, specialising in helping organisations transform the way they store, manage and protect their data.” Source: RevenueBase Database · checked Sep 28, 2026
4	Nowasys LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	70 contacts →
	Partial evidence “Nowasys is a Data Engineering company based in the United Kingdom.” Source: RevenueBase Database · checked Sep 28, 2026
5	Solidatus	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	64 contacts →
	Partial evidence “Solidatus gives you trust in your data and confidence in your decisions.” Source: RevenueBase Database · checked Sep 28, 2026
6	Pace Integration	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	47 contacts →
	Strong evidence “Pace Integration is a unique technology consultancy that solves your integration challenge – focused on enterprise systems integration strategy, architecture and design that is…” Source: RevenueBase Database · checked Sep 28, 2026
7	Ometis Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	39 contacts →
	Partial evidence “We help UK businesses get more value from their data.” Source: RevenueBase Database · checked Sep 28, 2026
8	Leit Data	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	31 contacts →
	Partial evidence “LEIT DATA is a consultancy and services company with over 20 years of experience in the sector.” Source: RevenueBase Database · checked Sep 28, 2026
9	Turbosoft Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “We connect your CRM, ERP, AI and Cloud systems, bridging internal platforms and external tools so your data flows cleanly, your processes run automatically, and your business…” Source: RevenueBase Database · checked Sep 28, 2026
10	DOT Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “We are Dot Group.” Source: RevenueBase Database · checked Sep 28, 2026
11	Alchem Technologies LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	14 contacts →
	Partial evidence “Alchem is a data and systems integrator providing high-end technical capabilities in the national security, defence, and critical infrastructure sectors.” Source: RevenueBase Database · checked Sep 28, 2026
12	Marketsio	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “MarketsIO is a trailblazing technology company that specializes in delivering risk-free, innovative, and scalable solutions to capital markets and other industries.” Source: RevenueBase Database · checked Sep 28, 2026
13	Patharitech	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Specialized in Integration domain.” Source: RevenueBase Database · checked Sep 28, 2026
14	Iqubics Technologies LLP	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “At IQUBICS, we drive innovation by offering tailored Data Warehouse and Business Intelligence solutions to help companies succeed in the competitive global environment.” Source: RevenueBase Database · checked Sep 28, 2026
15	Hopp Tech	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Transform your business data with Hopp’s industry-leading data migration software, and unlock improved data quality, productivity, and decision-making.” Source: RevenueBase Database · checked Sep 28, 2026
16	Intelliquest	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Strong evidence “Big Data Engineering \| Data Science \| Data Engineering \| Integration \| Testing/QA” Source: RevenueBase Database · checked Sep 28, 2026
17	BSSG	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	8 contacts →
	Strong evidence “We are the enterprise data architects who help top companies’ gain easy access to their data and ensure that their data is credible.” Source: RevenueBase Database · checked Sep 28, 2026
18	Xerini	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “You don't have a data problem.” Source: RevenueBase Database · checked Sep 28, 2026
19	Precision Bridge	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “Precision Bridge helps customers to migrate, replicate and archive application data from enterprise service management platforms securely and efficiently whilst maintaining data…” Source: RevenueBase Database · checked Sep 28, 2026
20	Curium Data Systems	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Founded in 2007, Curium Data Systems specialises in the provision and support of advanced technology solutions aimed at the Data Management and Operations teams of financial…” Source: RevenueBase Database · checked Sep 28, 2026
21	Smartsaas	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “SmartSaaS is a company focused on modernising the data workflows of SMEs, we work with our clients to create a data structure which is the basis of a centralised system for all of…” Source: RevenueBase Database · checked Sep 28, 2026
22	Orbitx	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “At OrbitX, we improve the way people see and understand their data.” Source: RevenueBase Database · checked Sep 28, 2026
23	R4apps Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “At r4apps, we are dedicated to helping companies overcome their digital challenges with ease.” Source: RevenueBase Database · checked Sep 28, 2026
24	Trigger Data	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “We specialise in turning complex data challenges into tailored business solutions.” Source: RevenueBase Database · checked Sep 28, 2026
25	Prima Consulting UK	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Prima Consulting UK provides Business Intelligence solutions to organisations across the globe.” Source: RevenueBase Database · checked Sep 28, 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: enterprise data 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 enterprise data integration companies.
Partial evidence: Its own public description names part of enterprise data integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise data 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 104 enterprise data integration companies based in London, United Kingdom

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Enterprise data integration companies based in London, United Kingdom at a glance

As of Sep 28, 2026

51.2%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 104 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 enterprise data 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 London, United Kingdom whose own description of what they do matches “enterprise data 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 enterprise data 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 enterprise data integration companies, and records with no verified work email. Companies headquartered outside London 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, 555 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 28, 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.

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 enterprise data 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 enterprise data integration companies are there based in London, United Kingdom?

RevenueBase identified 104 enterprise data integration companies headquartered in London, 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?

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

Which city in the United Kingdom has the most enterprise data integration companies?

London leads the United Kingdom with 104 headquartered companies, followed by Manchester (10) and Reading (9).

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 555 verified decision-maker contacts tracked across these 104 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 28, 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.