Company lists · Data refreshed September 2026

Top 25 Healthcare enterprise architecture firms based in London, United Kingdom

Name: Healthcare enterprise architecture 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 28, 2026 143 companies tracked

RevenueBase identified 143 healthcare enterprise architecture firms headquartered in London, United Kingdom as of September 2026 and tracks 3,390 professional contacts across them, including 798 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers healthcare enterprise architecture firms 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

143Companies

3,390Contacts tracked

798Verified emails

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The 25 largest healthcare enterprise architecture firms based in London, United Kingdom

Ranked by team size

Top 25 of 143 healthcare enterprise architecture firms 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 healthcare enterprise architecture firms: 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	Principle ONE	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	78 contacts →
	Partial evidence “Principle One provides Systems Engineering, Architecture and Business Consulting services within the Law Enforcement, National Security, Health and wider public sector.” Source: RevenueBase Database · checked Sep 28, 2026
2	Marx Enterprise Transformation Architecture	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	49 contacts →
	Strong evidence “Marx Group is a leading global AI fueled Solutions & Products firm with a solid framework of Enterprise Architecture as Service to master rapid changes.” Source: RevenueBase Database · checked Sep 28, 2026
3	Open Medical	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	46 contacts →
	Partial evidence “We are a team of clinician-led digital health experts delivering award-winning, cloud-based software for healthcare organisations, powered by our Pathpoint® platform.” Source: RevenueBase Database · checked Sep 28, 2026
4	AKESO	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	43 contacts →
	Partial evidence “We are an independent healthcare and life science management consultancy focused on delivering sustainable improvements through consulting and analytics.” Source: RevenueBase Database · checked Sep 28, 2026
5	Edge Health UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “Edge Health is a leading UK-based healthcare analytics, strategy, and change management consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
6	Mansfield Advisors	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “Mansfield is a leading healthcare and life sciences strategy consulting firm as ranked by the Financial Times and Vault.” Source: RevenueBase Database · checked Sep 28, 2026
7	Health Spaces	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Hospital Estates & Design Consultants with Integrated Project Delivery Capabilities.” Source: RevenueBase Database · checked Sep 28, 2026
8	Athera Healthcare	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “Athera Healthcare offers innovative solutions, technology, and expertise to healthcare teams.” Source: RevenueBase Database · checked Sep 28, 2026
9	Sonnemann Toon Architects LLP	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Strong evidence “Established in 2002, Sonnemann Toon Architects have a diverse architecture portfolio across the healthcare, commercial and residential sectors.” Source: RevenueBase Database · checked Sep 28, 2026
10	Medical Architecture	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	24 contacts →
	Strong evidence “We are specialists in healthcare architecture.” Source: RevenueBase Database · checked Sep 28, 2026
11	XYTAL	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Xytal help teams become more efficient, effective and confident.” Source: RevenueBase Database · checked Sep 28, 2026
12	Cfes LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “As a national contractor working for both private and public sector clients, we offer an end-to-end fully integrated package of construction and engineering services bespoke to…” Source: RevenueBase Database · checked Sep 28, 2026
13	Market Cloud LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	21 contacts →
	Indirect evidence “Market Cloud helps transform digital potential into business reality.” Source: RevenueBase Database · checked Sep 28, 2026
14	Transformation Nous	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “We founded in 2016.” Source: RevenueBase Database · checked Sep 28, 2026
15	H3o Digital	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “H3O Digital provides enterprise class technical services for businesses of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
16	Medical Consulting Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	16 contacts →
	Partial evidence “The Expert Network for Healthcare.” Source: RevenueBase Database · checked Sep 28, 2026
17	Tangram Architects	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Strong evidence “Tangram Architects is a London based architectural practice whose skills skills are principally, but not exclusively, in the healthcare sector.” Source: RevenueBase Database · checked Sep 28, 2026
18	Konvergent	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “At Konvergent, we do two things really well: We can ensure you are making the best technology investment decisions We have the best architects, for your company Strategic…” Source: RevenueBase Database · checked Sep 28, 2026
19	Rwhealth	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “RwHealth is a provider of healthcare analytics and data solutions, that has helped clients across the UK, Middle East and Australia with their mission-critical programs.” Source: RevenueBase Database · checked Sep 28, 2026
20	Optimus IT Infra	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “With a background in NHS IT and a wealth of relevant programming language knowledge, the Optimus team has extensive experience in developing, testing, maintaining and supporting…” Source: RevenueBase Database · checked Sep 28, 2026
21	BSSG	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	8 contacts →
	Partial 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
22	E-Health IT	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “e-Health IT are specialists in providing consultancy and development services for Healthcare Organisations deployed with Oracle Cerner Millenium.” Source: RevenueBase Database · checked Sep 28, 2026
23	Synetic Life Sciences	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Today’s healthcare marketing landscape is more complex and challenging than ever-the “standard” playbook no longer guarantees success.” Source: RevenueBase Database · checked Sep 28, 2026
24	Nautilus	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Nautilus Consulting Limited is a digital healthcare consulting company that specialises in helping our customers to exploit information technology as an enabler for change.” Source: RevenueBase Database · checked Sep 28, 2026
25	Abolon Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Abolon is a strategy consulting and corporate finance firm with an exclusive focus on the healthcare sector.” 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: healthcare enterprise architecture firms. 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 healthcare enterprise architecture firms.
Partial evidence: Its own public description names part of healthcare enterprise architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare enterprise architecture firms. 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 143 healthcare enterprise architecture firms based in London, United Kingdom

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Healthcare enterprise architecture firms based in London, United Kingdom at a glance

As of Sep 28, 2026

23.5%Verified-email coverage

23.7Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 143 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 healthcare enterprise architecture firms, 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 “healthcare enterprise architecture firms”. 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 healthcare enterprise architecture firms), 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 healthcare enterprise architecture firms, 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, 798 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 healthcare enterprise architecture firms, 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 healthcare enterprise architecture firms are there based in London, United Kingdom?

RevenueBase identified 143 healthcare enterprise architecture firms 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?

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

Which city in the United Kingdom has the most healthcare enterprise architecture firms?

London leads the United Kingdom with 143 headquartered companies, followed by Manchester (9) and Birmingham (6).

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 798 verified decision-maker contacts tracked across these 143 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.