Company lists · Data refreshed September 2026

Top 25 IT research and advisory companies based in the United Kingdom

Name: IT research and advisory companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 456 companies tracked

RevenueBase identified 456 IT research and advisory companies headquartered in the United Kingdom as of September 2026 and tracks 11,876 professional contacts across them, including 5,152 with verified work emails. London is the largest hub.

This list covers IT research and advisory companies headquartered in the 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 21, 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 21, 2026 86% judged on-target in blind review

456Companies

11,876Contacts tracked

5,152Verified emails

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The 25 largest IT research and advisory companies based in the United Kingdom

Ranked by team size

Top 25 of 456 IT research and advisory companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT research and advisory 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	Acuity Knowledge Partners	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	5,009 contacts →
	Partial evidence “Acuity Knowledge Partners (Acuity) is a leading provider of bespoke research, analytics and technology solutions to the financial services sector, including asset managers…” Source: RevenueBase Database · checked Sep 21, 2026
2	Infiniti Research LTD	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	651 contacts →
	Partial evidence “Infiniti Research is a leading provider of market intelligence and customer intelligence solutions with 20+ years’ experience spanning across 20+ industries.” Source: RevenueBase Database · checked Sep 21, 2026
3	Savanta	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	464 contacts →
	Strong evidence “Savanta is a fast-growing data, market research and advisory company.” Source: RevenueBase Database · checked Sep 21, 2026
4	Analysys Mason	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	459 contacts →
	Partial evidence “Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Source: RevenueBase Database · checked Sep 21, 2026
5	OMDIA	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	362 contacts →
	Strong evidence “Omdia, part of Informa TechTarget, Inc.(Nasdaq: TTGT), is a technology research and advisory group.” Source: RevenueBase Database · checked Sep 21, 2026
6	Cartesian	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	302 contacts →
	Indirect evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 21, 2026
7	Clarify	Indirect evidence	Theale, United KingdomHQ checked Sep 21, 2026	51-200	191 contacts →
	Indirect evidence “Clarify helps global Technology companies achieve sustained and significant commercial success.” Source: RevenueBase Database · checked Sep 21, 2026
8	B2B International	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	178 contacts →
	Partial evidence “The world’s most experienced B2B market research company.” Source: RevenueBase Database · checked Sep 21, 2026
9	Verdantix	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	125 contacts →
	Strong evidence “Verdantix is an independent research and advisory firm that serves a global client base consisting of the world’s most innovative corporations, technology and services vendors…” Source: RevenueBase Database · checked Sep 21, 2026
10	Mason Advisory Limited	Partial evidence	Manchester, United KingdomHQ checked Sep 21, 2026	51-200	121 contacts →
	Partial evidence “Mason Advisory Limited (Mason Advisory) is a digital and technology advisory firm providing strategic, technical and commercial advice to organisations across the private and…” Source: RevenueBase Database · checked Sep 21, 2026
11	BVA Bdrc	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	105 contacts →
	Indirect evidence “BVA BDRC is now part of Ipsos, and using the Ipsos brand name, following acquisition in June 2025.” Source: RevenueBase Database · checked Sep 21, 2026
12	TET Limited	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	93 contacts →
	Indirect evidence “TET was founded in 1985 and still remains privately-owned.” Source: RevenueBase Database · checked Sep 21, 2026
13	Plural Strategy	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	78 contacts →
	Indirect evidence “Plural Strategy is a strategy consultancy for the media, information and technology industries.” Source: RevenueBase Database · checked Sep 21, 2026
14	MASMI	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	69 contacts →
	Partial evidence “MASMI is a full-service international market research company with broad industry expertise specialising in delivering research insights and decision support, based on state of…” Source: RevenueBase Database · checked Sep 21, 2026
15	Excelledia	Indirect evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	51-200	64 contacts →
	Indirect evidence “Excelledia is a management consulting firm that provides insights, organizational transformation, and business strategy through people, process & technology consulting to clients…” Source: RevenueBase Database · checked Sep 21, 2026
16	Business Advantage	Strong evidence	Petts Wood, United KingdomHQ checked Sep 21, 2026	11-50	48 contacts →
	Strong evidence “Business Advantage is a B2B research, business development and marketing consulting practice operating in the global IT, Digital and Telecommunications sectors.” Source: RevenueBase Database · checked Sep 21, 2026
17	Idtechex	Partial evidence	Cambridge, United KingdomHQ checked Sep 21, 2026	51-200	47 contacts →
	Partial evidence “IDTechEx provides trusted independent research on emerging technologies and their markets.” Source: RevenueBase Database · checked Sep 21, 2026
18	Arete Research	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	45 contacts →
	Partial evidence “Arete Research is an Equity Research firm with offices in London, Boston and Hong Kong.” Source: RevenueBase Database · checked Sep 21, 2026
19	Vanson Bourne	Partial evidence	Newbury, United KingdomHQ checked Sep 21, 2026	11-50	44 contacts →
	Partial evidence “Your brand isn’t generic and neither is our research.” Source: RevenueBase Database · checked Sep 21, 2026
20	Montvieux	Partial evidence	Tewkesbury, United KingdomHQ checked Sep 21, 2026	51-200	40 contacts →
	Partial evidence “Montvieux is a privately owned and truly independent technology company providing innovative research, services and solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	Sapio Research	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	40 contacts →
	Partial evidence “We’re a Certified B Corp™, full-service market research agency based in London, and we're experts in B2B & Technology market research.” Source: RevenueBase Database · checked Sep 21, 2026
22	CCS Insight	Strong evidence	King's Cross, United KingdomHQ checked Sep 21, 2026	11-50	40 contacts →
	Strong evidence “Industry analyst firm CCS Insight is a leading research and advisory company focused on the connected world and the future of technology.” Source: RevenueBase Database · checked Sep 21, 2026
23	STL Partners	Indirect evidence	22 Highbury Grove, United KingdomHQ checked Sep 21, 2026	11-50	39 contacts →
	Indirect evidence “STL Partners helps telcos and their partners innovate, grow and stay ahead of the competition.” Source: RevenueBase Database · checked Sep 21, 2026
24	Nexucon Consultancy Services PVT LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
25	Lloyds Ventures	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	37 contacts →
	Indirect evidence “Lloyds Ventures is the India entity to Lloyds UK, set up to expand its outreach globally in the telecom sector.” Source: RevenueBase Database · checked Sep 21, 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: IT research and advisory 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 IT research and advisory companies.
Partial evidence: Its own public description names part of IT research and advisory companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT research and advisory 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 25 of 456 IT research and advisory companies based in the United Kingdom

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IT research and advisory companies based in the United Kingdom at a glance

As of Sep 21, 2026

43.4%Verified-email coverage

26.0Average contacts per company

1-10Median size (employees)

49.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

282

11-50

105

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 456 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 IT research and advisory 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 the United Kingdom whose own description of what they do matches “IT research and advisory 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 IT research and advisory 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 IT research and advisory companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 5,152 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 21, 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.

IT research and advisory companies by metro

IT research and advisory companies in London227

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 IT research and advisory 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 IT research and advisory companies are there based in the United Kingdom?

RevenueBase identified 456 IT research and advisory companies headquartered in the 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?

Acuity Knowledge Partners, headquartered in London, tops this list with the largest team on record.

Which city has the most IT research and advisory companies?

London leads with 227 headquartered companies, followed by Manchester (12) and Cambridge (10).

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 5,152 verified decision-maker contacts tracked across these 456 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 21, 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.