Company lists · Data refreshed September 2026

Top 25 Data classification consulting firms based in the United Kingdom

Name: Data classification consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 227 companies tracked

RevenueBase identified 227 company matches for data classification consulting firms associated with the United Kingdom as of September 2026 and tracks 2,491 professional contacts across them, including 1,076 with verified work emails. London is the largest hub.

This list covers company matches for data classification consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

227Companies

2,491Contacts tracked

1,076Verified emails

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The 25 largest data classification consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 227 company matches for data classification consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	First Derivative	Exact match	Newry, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	988 contacts →
	Exact match “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Quantzig	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	216 contacts →
	Exact match “Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	The Information LAB	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	197 contacts →
	Exact match “The Information Lab is on a mission.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Envitia	Exact match	Horsham, United KingdomHQ recorded Sep 28, 2026	51-200	99 contacts →
	Exact match “Envitia is an IT services and consulting company, specialising in complex data challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	The Tecsa Group	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	66 contacts →
	Exact match “Tecsa is a specialist retail loyalty and analytics consultancy founded and led by former retail executives who built and ran major loyalty programmes, including Nectar, Holland &…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Bigspark	Exact match	United KingdomHQ recorded Sep 28, 2026	51-200	63 contacts →
	Exact match “Data & AI focussed technology consultancy with specialism in delivering for regulated industries” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Synapx	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	40 contacts →
	Exact match “Award-winning global consulting experts, blending top-tier consulting and development skills with a cross-functional team, including MVPs who are delivering cost-effective…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Fredward	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	38 contacts →
	Exact match “We have joined S&W and this profile is no longer being maintained.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	RED Olive	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	35 contacts →
	Exact match “Red Olive was founded by a team of experienced Analytics, Business Intelligence and Data Management Profesionals with a love for creating tangible business improvement.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Beyond	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	32 contacts →
	Exact match “Beyond is a prominent player in the field of data analysis consultancy services and is renowned for its expertise in AI, data science, and technology consulting.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	BI Procsi	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	30 contacts →
	Exact match “BI:PROCSI is a customer-focused, data-driven, highly experienced, and dedicated team of consultants delivering world-class solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Strat7 Bonamy Finch	Exact match	Cobham, United KingdomHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “STRAT7 Bonamy Finch is a data science, AI and segmentation consultancy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	VISFO	Exact match	Brighouse, United KingdomHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “VISFO: Your partner in strategic decision-making.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Data Reply UK	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “Data Reply is the Reply group company offering a broad range of analytics and data processing services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Colours Of Data	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “At Colours of Data, we don’t just analyze numbers-we unlock business potential.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Loncom Consulting	Exact match	Nottingham, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “At Loncom Consulting, we transform data into strategy and strategy into growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Datagene	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	16 contacts →
	Exact match “We have served different business in different sectors like (Transport, Finance, Debt Management,Accounting, Media, Events etc) for over 10 years and we are happy to to have…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Dataobrii	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “We are a high-tech consulting firm, specializing in data science, machine learning and AI-augmented Internet of Things.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Salient Ediscovery	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	13 contacts →
	Exact match “At Salient, we pride ourselves on the diverse skill sets and extraordinary experience that enable our teams to bring invaluable insights and exceptional adaptability to each and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Iqubics Technologies LLP	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	12 contacts →
	Exact match “At IQUBICS, we drive innovation by offering tailored Data Warehouse and Business Intelligence solutions to help companies succeed in the competitive global environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Bays Consulting LTD	Exact match	Guildford, United KingdomHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “BAYS CONSULTING isn’t afraid of uncertainty, in fact it thrives on working with incomplete, inconsistent, disparate data sets to find the hidden patterns, trends and stories…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Rovy Solutions	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	11 contacts →
	Exact match “At Rovy Solutions, we help organizations make smarter decisions by making sense of their data.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Work Your Data	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	9 contacts →
	Exact match “We are a global data analytics consultancy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Ams1one Solutions	Exact match	Wellingborough, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “AMS1ONE Solutions, an independent consulting firm that specialises in the scalability, architecture, and engineering of analytic data solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Layer 9	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	7 contacts →
	Exact match “We are a team of experienced data people helping companies create sources of value from data to make smarter decisions to reach their business objectives.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “data classification consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 227 data classification consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,076 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data classification consulting firms based in the United Kingdom at a glance

As of Sep 28, 2026

43.2%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

48.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

175

11-50

51-200

201-500

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 227 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “data classification consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,076 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Data classification consulting firms by metro

Data classification consulting firms in London109

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “data classification consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data classification consulting firms are there based in the United Kingdom?

RevenueBase identified 227 company matches for data classification consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

First Derivative tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most data classification consulting firms?

London leads with 109 company records, followed by Leeds (4) and Birmingham (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,076 professional contacts with verified work emails tracked across these 227 companies; direct dials are available where recorded.

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 SmartSearch, 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.