Company lists · Data refreshed September 2026

Top 25 Sem consulting firms based in the United Kingdom

RevenueBase identified 1,788 company matches for sem consulting firms associated with the United Kingdom as of September 2026 and tracks 10,583 professional contacts across them, including 1,977 with verified work emails. London is the largest hub.

This list covers company matches for sem 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 29, 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 29, 2026 How this list was built
1,788Companies
10,583Contacts tracked
1,977Verified emails
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The 25 largest sem consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 1,788 company matches for sem consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSheffield, United KingdomHQ recorded Sep 29, 202651-20098 contacts →

Exact match

“The SEO Works are an award-winning provider of search marketing, websites and paid social for leading brands and prospering SME’s.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLeeds, United KingdomHQ recorded Sep 29, 2026201-50077 contacts →

Exact match

“Search Marketing | Content | Strategy Delivered by passionate people.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5077 contacts →

Exact match

“At MediaVision, we believe there's potential hidden in every search.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchMiddlesbrough, United KingdomHQ recorded Sep 29, 202651-20069 contacts →

Exact match

“Unlock exceptional business growth with Mabo - an award-winning digital marketing agency specialist in paid search, social media, search engine optimisation (SEO) and Amazon…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchNottingham, United KingdomHQ recorded Sep 29, 202651-20057 contacts →

Exact match

“Exposure Ninja is an award-winning search marketing agency specialising in SEO, AI Search and PPC.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchHooton, United KingdomHQ recorded Sep 29, 202651-20055 contacts →

Exact match

“Click Consult, an IQVIA business, is a multi award-winning digital and search marketing agency with a focus on organic (SEO) and paid search (PPC).”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchBournemouth, United KingdomHQ recorded Sep 29, 202611-5054 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20051 contacts →

Exact match

“Skale is an AI-search-first organic growth agency for SaaS and tech brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchBrighton, United KingdomHQ recorded Sep 29, 202611-5051 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchNeedham Market, United KingdomHQ recorded Sep 29, 202651-20050 contacts →

Exact match

“At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchHenley-on-thames, United KingdomHQ recorded Sep 29, 202611-5048 contacts →

Exact match

“Screaming Frog is a search marketing agency drawing on years of experience from within the world of digital marketing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchAltrincham, United KingdomHQ recorded Sep 29, 202611-5047 contacts →

Exact match

“Incredible PPC and SEO results are not the exclusive rights of those with deep pockets.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchNorwich, United KingdomHQ recorded Sep 29, 202611-5046 contacts →

Exact match

“Every business has one thing in common, the drive to succeed.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLeeds, United KingdomHQ recorded Sep 29, 202611-5044 contacts →

Exact match

“We're Wolfenden, an independent performance marketing agency helping ambitious brands unlock sustainable growth through organic search, authority, digital PR, paid media, data and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchCardiff, United KingdomHQ recorded Sep 29, 202611-5041 contacts →

Exact match

“We offer digital marketing consultancy, strategy, training and delivery.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5038 contacts →

Exact match

“Distinctly is an independent digital marketing agency with a passion for SEO, paid media, digital PR and content.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchGrimsby, United KingdomHQ recorded Sep 29, 202611-5036 contacts →

Exact match

“We eat, sleep and breathe digital.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5033 contacts →

Exact match

“Bird UK - bird.co.uk Bird UAE - bird.ae Bird USA - bird.marketing Bird Marketing, an award-winning digital marketing agency, is a beacon of excellence in the digital landscape.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchColchester, United KingdomHQ recorded Sep 29, 202611-5032 contacts →

Exact match

“Footprint Digital is here to help.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchHounslow, United KingdomHQ recorded Sep 29, 202611-5032 contacts →

Exact match

“Your Online Conversation Limited is an information technology and services company based out of the United Kingdom.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchHurstpierpoint, United KingdomHQ recorded Sep 29, 202611-5031 contacts →

Exact match

“Based in West Sussex, Artemis Marketing is a full-service digital marketing agency.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5030 contacts →

Exact match

“Iconic Digital is a leading digital marketing agency based in London, UK.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLancaster, United KingdomHQ recorded Sep 29, 202611-5029 contacts →

Exact match

“SQ is a digital marketing consultancy and a trusted partner to growing businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchStockton-on-tees, United KingdomHQ recorded Sep 29, 202611-5028 contacts →

Exact match

“Colewood has been helping businesses with their web & marketing needs Whether it be Paid Search, SEO, Social, Media Production, Website Design, Development and Hosting or Email…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchStone, United KingdomHQ recorded Sep 29, 202611-5028 contacts →

Exact match

“Extramile Digital is an international digital marketing agency committed to the growth and expansion of your business.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 1,788 sem consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,977 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sem consulting firms based in the United Kingdom at a glance

As of Sep 29, 2026
18.7%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
28.2%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,342
11-50
393
51-200
42
201-500
8
501-1,000
1

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 1,788 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 “sem 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 1,977 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 29, 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.

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 “sem consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,788 company matches for sem 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?

The SEO Works tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sem consulting firms?

London leads with 504 company records, followed by Manchester (70) and Birmingham (47).

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 1,977 professional contacts with verified work emails tracked across these 1,788 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,788 sem consulting firms based in the United Kingdom. Start with a free account, no credit card.

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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.