Company lists · Data refreshed September 2026
Top 25 Nonprofit IT consultants based in London, United Kingdom
RevenueBase identified 103 nonprofit IT consultants headquartered in London, United Kingdom as of September 2026 and tracks 2,498 professional contacts across them, including 359 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers nonprofit IT consultants 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.
The 25 largest nonprofit IT consultants based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,221 contacts → | ||||
Indirect evidence “Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 99 contacts → | ||||
Indirect evidence “OryxAlign creates true alignment that delivers the right outcomes for all.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 78 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 68 contacts → | ||||
Indirect evidence “At smartimpact, we thrive on making great technology work for amazing organisations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 contacts → | ||||
Partial evidence “We are a multi-award winning team of 70 experts providing Salesforce.com cloud consultancy software services and apps (Clarity Data Transform, Clarity Gift Aid, Clarity Banking)…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 contacts → | ||||
Partial evidence “Hyphen8 is a Salesforce consultancy whose focus, and passion, is to work in partnership with non-profit organisations to transform the way they work.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence “We are a student-run society at UCL that provides consulting services completely free of charge to socially conscious organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “At Hart Square, we have been dedicated to the non-profit sector since 2009.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 20 contacts → | ||||
Partial evidence “AAW Group are pioneers in non-profit recruitment and strategic fundraising consultancy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16 contacts → | ||||
Partial evidence “Your Trusted Partner in Cybersecurity & 360 IT Support Founded in 2004, VITS has built a reputation for protecting businesses across the globe with robust, responsive, and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 14 contacts → | ||||
Partial evidence “At Accordant we understand the changing needs of business IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 12 contacts → | ||||
Partial evidence “Fusion4IT is a trusted technology partner delivering proactive, secure, and scalable IT solutions-providing the technology that keeps your business ahead.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Partial evidence “Our Core Values & Our mission are built on one goal: to be the most trusted, forward thinking IT partner you’ve ever worked with.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Partial evidence “IT Support | Cyber Security | Cloud Management | IT Strategy” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Partial evidence “Gallery Partnership provides an entire suite of affordable IT services and software systems, empowering charities to focus on what’s most important - their cause.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Indirect evidence “Suzaku is the ‘Vermillion Bird’ or in western parlance, the Phoenix.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “We help not for profits improve their fundraising so they can keep doing what they do brilliantly – making a difference to the world around us.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Strong evidence “Agile and sustainable Digital transformation : A dynamic force of sound consultants who have sit in the chairs of CTO and CiSO roles, experts in a spectrum of IT disciplines…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “Non profits, improve your fundraising, grow your revenue and make more impact!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Strong evidence “We offer a full range of consultancy in IT services, managed service provision, business development and technology fields to organisations ranging in size from startups to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Partial evidence “Walker & Munns was founded in February 2023 by Ricky Walker and Dennis Munns, two seasoned professionals with over two decades of experience in IT architecture and service…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “At Purple & , we are at the forefront of data-driven technology consulting, dedicated to transforming businesses through innovative solutions tailored to their unique challenges.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “DuBerg is a ‘Boutique’ Management Consulting firm that has grown from a team of highly skilled professionals, with a strong commitment to working closely with customers to shape…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “The Fundraising agency is an agency that works with a wide client base providing support based expertise, knowledge and know how for all of your business needs - Your business is…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “OPTIMUM SUPPORT is a charity consultancy business located at 90 LONG ACRE, LONDON, United Kingdom.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: nonprofit IT consultants. 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 nonprofit IT consultants.
- Partial evidence
- Its own public description names part of nonprofit IT consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nonprofit IT consultants. 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 103 nonprofit IT consultants based in London, United Kingdom
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Nonprofit IT consultants based in London, United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 103 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 nonprofit IT consultants, 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 “nonprofit IT consultants”. 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 nonprofit IT consultants), 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 nonprofit IT consultants, 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, 359 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.
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 nonprofit IT consultants, 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 nonprofit IT consultants are there based in London, United Kingdom?
RevenueBase identified 103 nonprofit IT consultants 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?
Blackmont Consulting, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most nonprofit IT consultants?
London leads the United Kingdom with 103 headquartered companies, followed by Manchester (6) and Birmingham (5).
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 359 verified decision-maker contacts tracked across these 103 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.
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