Company lists · Data refreshed September 2026

Top 24 Software implementation companies based in London, United Kingdom

Name: Software implementation 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 29, 2026 321 companies tracked

RevenueBase identified 321 software implementation companies headquartered in London, United Kingdom as of September 2026 and tracks 3,845 professional contacts across them, including 1,210 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers software implementation 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 29, 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 29, 2026 86% judged on-target in blind review

321Companies

3,845Contacts tracked

1,210Verified emails

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The 24 largest software implementation companies based in London, United Kingdom

Ranked by team size

Top 24 of 321 software implementation companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software implementation 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	Zenitech	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	408 contacts →
	Indirect evidence “Zenitech creates technology to transform businesses.” Source: RevenueBase Database · checked Sep 29, 2026
2	The Adaptavist Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	254 contacts →
	Partial evidence “We are experts at delivering innovative software, tailored solutions, and quality services across some of the world's most trusted technology ecosystems, including Atlassian, AWS…” Source: RevenueBase Database · checked Sep 29, 2026
3	Flat Rock Technology	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	231 contacts →
	Partial evidence “Since 2008, Flat Rock Technology, a software engineering, SI, Cloud DevOps, Cyber Security, and Customer Experience (CX) company, has been at the forefront of providing innovative…” Source: RevenueBase Database · checked Sep 29, 2026
4	Eappsys	Indirect evidence	London, United KingdomHQ checked Sep 29, 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 29, 2026
5	Softhouse Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	73 contacts →
	Partial evidence “SoftHouse & SoftHouse Advisory is a leading provider of innovative software solutions, empowering businesses to thrive in the digital era.” Source: RevenueBase Database · checked Sep 29, 2026
6	Agile Cyber Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	69 contacts →
	Partial evidence “Agile Cyber Solutions is a company providing software services which prides itself as an understanding IT partner for various product development companies, large portals…” Source: RevenueBase Database · checked Sep 29, 2026
7	Diegesis Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	52 contacts →
	Indirect evidence “Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Source: RevenueBase Database · checked Sep 29, 2026
8	Devbox	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	52 contacts →
	Partial evidence “Devbox Technologies is a UK based company that specializes in providing services related to the development, testing, maintenance, and enhancement of software applications for…” Source: RevenueBase Database · checked Sep 29, 2026
9	Warrgyizmorsch	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	51 contacts →
	Indirect evidence “Tailored ERP, CRM & SaaS that automates your operations and fuels measurable growth.” Source: RevenueBase Database · checked Sep 29, 2026
10	Pace Integration	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	47 contacts →
	Indirect 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 29, 2026
11	SKO Systems	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	45 contacts →
	Partial evidence “At SKO Systems, we engineer enterprise-grade software ecosystems designed for the unique, high-stakes realities of the maritime environment.” Source: RevenueBase Database · checked Sep 29, 2026
12	ROI E-Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	41 contacts →
	Indirect evidence “We are a team of Expert Consultant motivated to Provide quality services and solutions to big, medium and small-scale industries We have been working as a support provider with…” Source: RevenueBase Database · checked Sep 29, 2026
13	Crown Interactive Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	39 contacts →
	Partial evidence “Crown Interactive is a technology Software Solution Company with its head office in Lagos, Nigeria.” Source: RevenueBase Database · checked Sep 29, 2026
14	Nexucon Consultancy Services PVT LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	38 contacts →
	Indirect evidence “Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Source: RevenueBase Database · checked Sep 29, 2026
15	R3 Digital	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	37 contacts →
	Indirect evidence “R3 Digital is a Systems Integrator and Salesforce Platinum (Summit) Consulting Partner that specialises in Health and Life Sciences.” Source: RevenueBase Database · checked Sep 29, 2026
16	Hicom Technology Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	36 contacts →
	Indirect evidence “With 30 years' experience we offer a wide array of solutions and services to meet your business objectives and expectations.” Source: RevenueBase Database · checked Sep 29, 2026
17	Touchstone Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	34 contacts →
	Indirect evidence “Incorporated in 1982, Touchstone Group is one of the UK's leading IT Services Group, solving real business issues for its clients.” Source: RevenueBase Database · checked Sep 29, 2026
18	Avidi Technologies	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	33 contacts →
	Indirect evidence “Avidi Technologies is an Innovative English - Ukrainian IT company with headquarters in London, UK, and R&D centers in Ivano-Frankivsk, Kharkiv, and Ternopil, Ukraine; with…” Source: RevenueBase Database · checked Sep 29, 2026
19	Blackwater Tech	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	33 contacts →
	Indirect evidence “At Blackwater Tech, we help clients accelerate growth and improve performance through tailored technology solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	Softelegance	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Strong evidence “Founded in 1993, SoftElegance is a custom software development company that has been providing reliable services for implementation of SaaS systems, sophisticated business…” Source: RevenueBase Database · checked Sep 29, 2026
21	Accellabs	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “ACCELERATING BUSINESSES WITH TOP TECHNOLOGIES As a technology and solutions consulting company we bring software innovations to working businesses to increase their efficiency.” Source: RevenueBase Database · checked Sep 29, 2026
22	Bestpath	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	26 contacts →
	Indirect evidence “BestPath provides next generation, easy to use IT solutions for businesses of all sizes, from FTSE 100 companies to start-ups.” Source: RevenueBase Database · checked Sep 29, 2026
23	Vthrive Solutions	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	25 contacts →
	Indirect evidence “Welcome to VThrive Solutions, where your business takes center stage as we cater to your technological needs.” Source: RevenueBase Database · checked Sep 29, 2026
24	Brilino Solutions Private Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	24 contacts →
	Indirect evidence “BRILINO SOLUTIONS is a high end business application development company providing bespoke business solutions for enterprise customers.” Source: RevenueBase Database · checked Sep 29, 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: software implementation 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 software implementation companies.
Partial evidence: Its own public description names part of software implementation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software implementation 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 24 of 321 software implementation companies based in London, United Kingdom

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Software implementation companies based in London, United Kingdom at a glance

As of Sep 29, 2026

31.5%Verified-email coverage

12.0Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

178

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 321 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 software implementation 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 “software implementation 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 software implementation 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 software implementation 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, 1,210 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 29, 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.

Software implementation companies by metro in the United Kingdom

Software implementation companies in Manchester28

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 software implementation 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 software implementation companies are there based in London, United Kingdom?

RevenueBase identified 321 software implementation 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?

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

Which city in the United Kingdom has the most software implementation companies?

London leads the United Kingdom with 321 headquartered companies, followed by Manchester (28) and Bristol (13).

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 1,210 verified decision-maker contacts tracked across these 321 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 29, 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.