Company lists · Data refreshed September 2026

Top 24 Managed IT services for financial services based in London, United Kingdom

Name: Managed IT services for financial services 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 288 companies tracked

RevenueBase identified 288 managed IT services for financial services headquartered in London, United Kingdom as of September 2026 and tracks 5,137 professional contacts across them, including 2,871 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers managed IT services for financial services 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

288Companies

5,137Contacts tracked

2,871Verified emails

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The 24 largest managed IT services for financial services based in London, United Kingdom

Ranked by team size

Top 24 of 288 managed IT services for financial services 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 managed IT services for financial services: 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	Delta Capita	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	976 contacts →
	Strong evidence “Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Source: RevenueBase Database · checked Sep 28, 2026
2	Gresham	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	336 contacts →
	Partial evidence “Gresham is a global leader in enterprise data automation solutions for the financial services industry.” Source: RevenueBase Database · checked Sep 28, 2026
3	Wanstor	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	227 contacts →
	Strong evidence “Wanstor: Experience First \| AI Fluent \| Secure by Default Wanstor is a trusted Managed IT Services company that helps ambitious organisations leverage technology to achieve better…” Source: RevenueBase Database · checked Sep 28, 2026
4	Acuity Professional Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	138 contacts →
	Partial evidence “We are a financial Professional Services firm, committed to giving you a simple and straightforward experience and ensuring you get the sophisticated financial outcomes you want.” Source: RevenueBase Database · checked Sep 28, 2026
5	Doherty Associates	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	113 contacts →
	Strong evidence “Doherty Associates is a Managed Service Provider delivering IT support, cyber security and AI enablement ‘beyond the call’.” Source: RevenueBase Database · checked Sep 28, 2026
6	Conosco	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	105 contacts →
	Indirect evidence “Cybersecurity specialists providing technology and telecoms solutions that gives you the leadership, experience and resilience you need to build and secure the future of work.” Source: RevenueBase Database · checked Sep 28, 2026
7	Oryxalign	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	99 contacts →
	Indirect evidence “OryxAlign creates true alignment that delivers the right outcomes for all.” Source: RevenueBase Database · checked Sep 28, 2026
8	Matsco Solutions	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	96 contacts →
	Strong evidence “Matsco Solutions is a global managed IT service provider built exclusively for the financial services industry.” Source: RevenueBase Database · checked Sep 28, 2026
9	Sysgroup	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Strong evidence “SysGroup is the services leader for realising AI transformation, as an award-winning managed IT services, cloud hosting, and IT consultancy provider.” Source: RevenueBase Database · checked Sep 28, 2026
10	Baseel Partners	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	78 contacts →
	Strong evidence “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Source: RevenueBase Database · checked Sep 28, 2026
11	NEW Link Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	69 contacts →
	Partial evidence “In complex transformation programmes, risk, regulation, financial crime, data, technology and operations no longer sit in separate silos.” Source: RevenueBase Database · checked Sep 28, 2026
12	Lanware	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	66 contacts →
	Partial evidence “Lanware provides tailored outsourced technology services for the financial sector.” Source: RevenueBase Database · checked Sep 28, 2026
13	Northdoor PLC	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	60 contacts →
	Strong evidence “Northdoor is an award-winning London-based IT consultancy and managed services provider with over 30 years’ experience.” Source: RevenueBase Database · checked Sep 28, 2026
14	Synergy Associates	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	46 contacts →
	Strong evidence “Synergy Associates is an IT Managed Services Provider, specializing in IT Support for art galleries, the creative industries and financial services in New York, London and Hong…” Source: RevenueBase Database · checked Sep 28, 2026
15	Mansion House Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	41 contacts →
	Partial evidence “Mansion House Consulting (MHC) is an international business and technology Consultancy focused exclusively on the Financial Services sector.” Source: RevenueBase Database · checked Sep 28, 2026
16	JPSB	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	40 contacts →
	Partial evidence “JPSB Group is a global financial technology consultancy comprised of senior professionals, operating from locations in the UK, Canada, and the US.” Source: RevenueBase Database · checked Sep 28, 2026
17	Fairmort Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “Fairmort is a software product & consultancy company.” Source: RevenueBase Database · checked Sep 28, 2026
18	Aheadmg	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Strong evidence “AheadMG is the trusted end-to-end partner for wealth management, financial services, and insurance firms navigating complex change.” Source: RevenueBase Database · checked Sep 28, 2026
19	Lucidica IT Support London	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Strong evidence “Lucidica is a leading managed IT service provider for SMEs in London, delivering reliable IT support and comprehensive cybersecurity solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	Nutbourne LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “As a managed services provider in the South East Nutbourne was founded to support people and solve their problems, offering a service that can cover all of your business’ needs…” Source: RevenueBase Database · checked Sep 28, 2026
21	Capital Support LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	23 contacts →
	Indirect evidence “Thank you for following Capital Support, we hope you have enjoyed all the content we shared on our platform.” Source: RevenueBase Database · checked Sep 28, 2026
22	Voodoo Park Certified B Corp	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	22 contacts →
	Partial evidence “Voodoo Park, a certified B Corp, is a Global Technology Services Company that specialises in Financial Services Technology.” Source: RevenueBase Database · checked Sep 28, 2026
23	Lanmark	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “Lanmark Limited is an IT Managed Services Provider headquartered in Dartford, Kent, serving businesses across London and Southeast England since 1993.” Source: RevenueBase Database · checked Sep 28, 2026
24	Liberate Accountants	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “Liberate brings your business a fully managed, engaged and integrated finance team, without the need for full time employees but with the reliability, loyalty and trust that you…” 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: managed IT services for financial services. 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 managed IT services for financial services.
Partial evidence: Its own public description names part of managed IT services for financial services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name managed IT services for financial services. 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 288 managed IT services for financial services based in London, United Kingdom

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Managed IT services for financial services based in London, United Kingdom at a glance

As of Sep 28, 2026

55.9%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

160

11-50

51-200

201-500

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 288 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 managed IT services for financial services, 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 “managed IT services for financial services”. 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 managed IT services for financial services), 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 managed IT services for financial services, 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, 2,871 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 managed IT services for financial services, 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 managed IT services for financial services are there based in London, United Kingdom?

RevenueBase identified 288 managed IT services for financial services 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?

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

Which city in the United Kingdom has the most managed IT services for financial services?

London leads the United Kingdom with 288 headquartered companies, followed by Manchester (18) and Bristol (11).

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 2,871 verified decision-maker contacts tracked across these 288 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.