Company lists · Data verified August 2026

Top 25 Communications consulting firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,569 companies tracked

There are 1,569 communications consulting firms headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 12,921 professional contacts across them, including 4,995 with verified work emails and 1,167 with mobile numbers. London is the largest hub.

This list covers communications consulting firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

1,569Companies

12,921Contacts tracked

4,995Verified emails

1,167Mobile numbers

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The 25 largest communications consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,569 communications consulting firms based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Emperor	Aldgate	201-500	414	230
2	Kekst CNC	London	201-500	312	207
3	ROMAN	London	51-200	310	58
4	Portland	London	201-500	229	82
5	Headland	London	51-200	205	173
6	Radley Yeldar	Birmingham	51-200	193	146
7	CDR Citigate Dewe Rogerson	London	51-200	190	67
8	Milltown Partners	London	51-200	177	112
9	Cavendish	London	51-200	172	129
10	Lansons Team Farner	London	51-200	142	78
11	Instinctif Partners	London	201-500	128	35
12	Hanbury Strategy	London	51-200	121	77
13	Infinite	n/a	51-200	121	72
14	Camargue	Cardiff	51-200	113	66
15	Copper Consultancy	London	51-200	112	88
16	PLMR	Chelmsford	51-200	77	57
17	Cirkle	London	51-200	77	42
18	Madano	London	51-200	75	47
19	Jones And Palmer	Birmingham	51-200	73	37
20	Excalibur Communications	Swindon	51-200	72	14
21	WA Communications	London	51-200	70	50
22	Hawthorn Advisors	London	51-200	69	46
23	Greentarget Global Group	London	51-200	55	42
24	H Advisors Maitland	London	51-200	50	31
25	Speed Communications	n/a	51-200	44	2

Showing 25 of 1,569 communications consulting firms based in the United Kingdom

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Communications consulting firms based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 749 HQs

1,167Contacts with mobile numbers

25Emails re-verified in last 30 days

Companies by employee count

1-10

1,190

11-50

297

51-200

201-500

501-1,000

1,001-5,000

Communications consulting firms by metro

Metro	Companies
Communications consulting firms in London	749
Communications consulting firms in Manchester	27
Communications consulting firms in Bristol	21
Communications consulting firms in Belfast	21
Communications consulting firms in Leeds	18
Communications consulting firms in Cambridge	17
Communications consulting firms in Oxford	17

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “communications consulting firms”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 25 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 1,569 communications consulting firms headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Emperor, headquartered in Aldgate, tops this list with the largest team on record.

Which city has the most communications consulting firms?

London leads with 749 headquartered companies, followed by Manchester (27) and Bristol (21).

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 4,995 verified decision-maker contacts tracked across these 1,569 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.