Company lists · Data refreshed September 2026

Top 25 Custom software development consulting firms based in London, United Kingdom

Name: Custom software development consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 3,085 companies tracked

RevenueBase identified 3,085 company matches for custom software development consulting firms associated with London, United Kingdom as of September 2026 and tracks 39,052 professional contacts across them, including 11,751 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for custom software development consulting firms associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 24, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 24, 2026 How this list was built

3,085Companies

39,052Contacts tracked

11,751Verified emails

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The 25 largest custom software development consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 3,085 company matches for custom software development consulting firms based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Endava	Exact match	London, United KingdomHQ recorded Sep 24, 2026	10001+	9,653 contacts →
	Exact match “For over two decades, we have been harnessing technology to drive meaningful change.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Computer Futures	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	2,673 contacts →
	Exact match “Building tomorrow’s tech landscape together Computer Futures is a Technology specialist, part of SThree, the global STEM workforce consultancy.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	Dotsquares	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	1,581 contacts →
	Exact match “We leverage the latest web and mobile technologies to build, grow and support your business.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	SENLA	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	515 contacts →
	Exact match “In 2012, SENLA set out with a vision: to transform people's lives with exceptional software.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Zenitech	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	408 contacts →
	Exact match “Zenitech creates technology to transform businesses.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	KIN Carta	Exact match	London, United KingdomHQ recorded Sep 24, 2026	5,001-10,000	400 contacts →
	Exact match “Kin + Carta was acquired by Valtech in 2024.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Damco Solutions Limited	Exact match	London, United KingdomHQ recorded Sep 24, 2026	1,001-5,000	327 contacts →
	Exact match “Damco Solutions Limited is a specialist software solutions and services & a business process outsourcing services company.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	Vertex Agility	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	255 contacts →
	Exact match “Vertex Agility is your next Global Digital Consultancy, providing deep expertise in Cloud, Data, and Software to the biggest brands in the world and the most disruptive scale-ups.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	The Adaptavist Group	Exact match	London, United KingdomHQ recorded Sep 24, 2026	1,001-5,000	254 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Parser	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	242 contacts →
	Exact match “At Parser we help organisations deliver impact through technology.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Flat Rock Technology	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	231 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Tmotions Global Limited	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	228 contacts →
	Exact match “TMotions is inspired by forward-thinking businesses, who are now looking past recovery and shifting into the growth mode.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Dreams Technologies, UK & India	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	221 contacts →
	Exact match “At Dreams Technologies, we’re more than software engineers, we’re digital transformation partners.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	KRIFY	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	221 contacts →
	Exact match “Krify is a results-driven technology company specializing in crafting user-centric mobile apps, web applications, and software solutions.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Emvigo Technologies	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	204 contacts →
	Exact match “Emvigo Technologies – The Power of Getting Things Done We believe that great ideas don’t just happen-they need the right team to bring them to life, fast.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Cisilion	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	194 contacts →
	Exact match “Combining market-leading tech with world-class service, we go above and beyond expectations to ensure our clients are ready for a digital future.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	Codurance	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	176 contacts →
	Exact match “For over 13 years, Codurance has helped businesses and their boards solve complex software challenges, often the ones that have resisted previous attempts and now carry real…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	YLD	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	166 contacts →
	Exact match “YLD is a software engineering, data engineering, and product design consultancy, specialising in customer experience and disruptive technologies.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	scrums.com	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	163 contacts →
	Exact match “Scrums.com is the Software Engineering Orchestration Platform (SEOP).” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	Digis, A Fiverr Company Nyse Fvrr	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	163 contacts →
	Exact match “Digis is a leading software development company with a team of over.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Interex Group	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	160 contacts →
	Exact match “InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	Opinov8	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	154 contacts →
	Exact match “Winner of the Best AI Company Award by The Netty Awards · Headquartered in London, powered by a worldwide team of engineers across Europe, Egypt, and the Americas.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	Daemon	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	145 contacts →
	Exact match “Founded in 2007, Daemon is a technology consultancy with a mission to make the world a better place by creating movements that power digital transformation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Synycs Group	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	132 contacts →
	Exact match “Incorporated in 2014 and headquartered in the UK, Synycs Group is a CMMI Level 4 industry-leading & most reliable software and mobile app development company known for delivering…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	Manras Technologies	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	130 contacts →
	Exact match “Manras Technologies started as an initiative for bringing young, passionate Salesforce CRM talent under one roof and to create simple yet innovative solutions for various service…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom software development consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,085 custom software development consulting firms based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 11,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Custom software development consulting firms based in London, United Kingdom at a glance

As of Sep 24, 2026

30.1%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,741

11-50

987

51-200

261

201-500

501-1,000

1,001-5,000

5,001-10,000

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 3,085 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with London, United Kingdom whose business descriptions match “custom software development consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 11,751 professional contacts with verified work emails across the full matched dataset. 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 24, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Custom software development consulting firms by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “custom software development consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom software development consulting firms are there based in London, United Kingdom?

RevenueBase identified 3,085 company matches for custom software development consulting firms associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Endava tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most custom software development consulting firms?

London leads the United Kingdom with 3,085 company records, followed by Manchester (251) and Birmingham (160).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 11,751 professional contacts with verified work emails tracked across these 3,085 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 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.