Company lists · Data refreshed September 2026

Top 25 Market sizing consultants based in the United Kingdom

Name: Market sizing consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 152 companies tracked

RevenueBase identified 152 market sizing consultants headquartered in the United Kingdom as of September 2026 and tracks 999 professional contacts across them, including 148 with verified work emails. London is the largest hub.

This list covers market sizing consultants 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 20, 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 20, 2026 86% judged on-target in blind review

152Companies

999Contacts tracked

148Verified emails

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The 25 largest market sizing consultants based in the United Kingdom

Ranked by team size

Top 25 of 152 market sizing consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to market sizing consultants: 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	Pmsi Strategy	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	45 contacts →
	Partial evidence “PMSI is a management consulting firm specialising in commercial due diligence, market intelligence and strategy consulting.” Source: RevenueBase Database · checked Sep 20, 2026
2	Precision Business Insights	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “Precision Business Insights is one of the leading market research and business consulting firm, which follow a holistic approach to solve the client needs.” Source: RevenueBase Database · checked Sep 20, 2026
3	Juniper Research	Strong evidence	Basingstoke, United KingdomHQ checked Sep 20, 2026	11-50	31 contacts →
	Strong evidence “Juniper Research provides market sizing and forecasting, competitive analysis, strategic assessment, and business modelling to the world’s leading organisations and innovators…” Source: RevenueBase Database · checked Sep 20, 2026
4	White Space Strategy	Indirect evidence	Oxford, United KingdomHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “At White Space Strategy, we help global, B2B industry-leading companies to grow and make the right decisions, supporting a vast array of different businesses with their most…” Source: RevenueBase Database · checked Sep 20, 2026
5	Fairfield Market Research	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “At Fairfield Market Research we create insightful reports that are equipped with the latest and most relevant market information and analysis.” Source: RevenueBase Database · checked Sep 20, 2026
6	Intellia	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	11 contacts →
	Indirect evidence “Intellia is a leading provider of high-end analytical and strategic support for investment firms, boutique consulting firms, banks and corporate business development teams…” Source: RevenueBase Database · checked Sep 20, 2026
7	The Upper Quartile Group Limited	Indirect evidence	Wetherby, United KingdomHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “The Upper Quartile was established in 2015 and exists to accelerate growth in both people and companies.” Source: RevenueBase Database · checked Sep 20, 2026
8	NOA LTD	Strong evidence	Lynton, United KingdomHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “NOA's three key areas of expertise contribute to helping you grow your business:* Market Research and Analysis * Coaching & Consultancy * Marketing Services MARKET RESEARCH &…” Source: RevenueBase Database · checked Sep 20, 2026
9	Juniper Strategy LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “Juniper is a specialist strategy and insight consultancy for the food, beverage, leisure and hospitality sectors.” Source: RevenueBase Database · checked Sep 20, 2026
10	Elcorp LTD	Indirect evidence	Bloomsbury, United KingdomHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence “Involved in a varied business services” Source: RevenueBase Database · checked Sep 20, 2026
11	Where NOW Consulting	Indirect evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Where Now Consulting focuses on helping companies to grow and compete.” Source: RevenueBase Database · checked Sep 20, 2026
12	Harlin LTD	Strong evidence	Salisbury, United KingdomHQ checked Sep 20, 2026	1-10	4 contacts →
	Strong evidence “Harlin Ltd is a specialist business development consultancy, founded by Dr John Lincoln and Rebecca Harwood Lincoln, helping organisation of all types identify market…” Source: RevenueBase Database · checked Sep 20, 2026
13	Ashford & Alesseea	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	3 contacts →
	Partial evidence “Ashford & Alesseea is a management consulting firm that provides unique market perspective and business intelligence, to equip our clients with the requisite knowledge to make…” Source: RevenueBase Database · checked Sep 20, 2026
14	Boxclever	Indirect evidence	Leeds, United KingdomHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “The home of Smart, Experienced Thinking.” Source: RevenueBase Database · checked Sep 20, 2026
15	CL Business Consulting LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Projects can be challenging, we work with you to develop strategy, your business plan and financial model to either create a new concept or take control of an existing operation.” Source: RevenueBase Database · checked Sep 20, 2026
16	Rubixness	Indirect evidence	Leeds, United KingdomHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Our passion lies in helping businesses like yours thrive and grow in today’s competitive landscape.” Source: RevenueBase Database · checked Sep 20, 2026
17	3polis Limited	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “3Polis is a management consulting firm headquartered in London, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
18	Ex2 Consultancy	Partial evidence	Belfast, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “We provide a range of business consulting services focussed on mentoring and consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
19	Roger Fulford Associates Limited	Partial evidence	Reading, United KingdomHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “RFAL specialises in management consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
20	Future Consulting LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “A strategic sales plan has never been more important to a companies future.” Source: RevenueBase Database · checked Sep 20, 2026
21	Articulate Energy Limited	Partial evidence	Bridge Of Don, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “Articulating energy business in the context of the market.” Source: RevenueBase Database · checked Sep 20, 2026
22	Quay Business Associates Limited	Indirect evidence	Poole, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “QUAY BUSINESS ASSOCIATES LIMITED is a management consulting company based in Poole in Dorset.” Source: RevenueBase Database · checked Sep 20, 2026
23	Inhand Consulting	Indirect evidence	Kingston Upon Thames, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “At inHand we don’t stop at insights; we deliver bankable value.” Source: RevenueBase Database · checked Sep 20, 2026
24	Timite Consulting	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Our primary focus is to empower businesses, especially small and medium-sized brands, with the knowledge and strategies needed for informed decision-making in areas such as brand…” Source: RevenueBase Database · checked Sep 20, 2026
25	Ardean	Strong evidence	Magherafelt, United KingdomHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “Ardean is a Marketing and Business Consultancy.” Source: RevenueBase Database · checked Sep 20, 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: market sizing 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 market sizing consultants.
Partial evidence: Its own public description names part of market sizing consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name market sizing 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 152 market sizing consultants based in the United Kingdom

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Market sizing consultants based in the United Kingdom at a glance

As of Sep 20, 2026

14.8%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

40.1%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

117

11-50

51-200

201-500

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 152 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 market sizing 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 the United Kingdom whose own description of what they do matches “market sizing 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 market sizing 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 market sizing consultants, 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, 148 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 20, 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.

Market sizing consultants by metro

Market sizing consultants in London61

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 market sizing 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 market sizing consultants are there based in the United Kingdom?

RevenueBase identified 152 market sizing consultants 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?

Pmsi Strategy, headquartered in London, tops this list with the largest team on record.

Which city has the most market sizing consultants?

London leads with 61 headquartered companies, followed by Manchester (5) and Leeds (4).

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 148 verified decision-maker contacts tracked across these 152 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 20, 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.