Company lists · Data refreshed September 2026

Top 25 SEO companies for startups based in the United Kingdom

RevenueBase identified 772 company matches for SEO companies for startups associated with the United Kingdom as of September 2026 and tracks 2,977 professional contacts across them, including 473 with verified work emails. London is the largest hub.

This list covers company matches for SEO companies for startups 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
772Companies
2,977Contacts tracked
473Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest SEO companies for startups based in the United Kingdom

Ranked by team size
Top 25 of 772 company matches for SEO companies for startups 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 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
2Exact 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
3Exact 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
4Exact matchBromsgrove, United KingdomHQ recorded Sep 29, 202611-5047 contacts →

Exact match

“Sherbet Donkey is an SEO agency built for businesses that want sustainable, long-term growth from organic search.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchBradford On Avon, United KingdomHQ recorded Sep 29, 202611-5024 contacts →

Exact match

“Varn is a specialist search marketing consultancy, applying our expertise in SEO, GEO, data, content strategy and digital PR, to accelerate profitable organic growth for our happy…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20022 contacts →

Exact match

“We are a globally remote team connected by cloud technology and a passion for all things SEO.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchKettering, United KingdomHQ recorded Sep 29, 202611-5021 contacts →

Exact match

“Are you tired of watching your competitors run rings around you?”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchFrodsham, United KingdomHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“The world searches.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchChelmsford, United KingdomHQ recorded Sep 29, 202611-5018 contacts →

Exact match

“Most businesses get SEO wrong.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchAldershot, United KingdomHQ recorded Sep 29, 202611-5018 contacts →

Exact match

“At we have been optimising websites since 2005 and achieved of top Google positions!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchHarrogate, United KingdomHQ recorded Sep 29, 202611-5018 contacts →

Exact match

“Game-changing organic performance services from content and technical SEO, to link building we cover it all.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5018 contacts →

Exact match

“SEOSkit is a result-driven SEO agency with 9+ years of hands-on experience helping businesses grow through organic search.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLeicester, United KingdomHQ recorded Sep 29, 202611-5017 contacts →

Exact match

“Get more customers, without more effort.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchIpswich, United KingdomHQ recorded Sep 29, 20261-1017 contacts →

Exact match

“iMarketing specialise in search engine optimisation and SEO training for companies throughout the UK.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBromsgrove, United KingdomHQ recorded Sep 29, 202611-5015 contacts →

Exact match

“Essential Marketer focuses on RESULTS for companies whether business to business or consumer.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchBrighton And Hove, United KingdomHQ recorded Sep 29, 202611-5015 contacts →

Exact match

“SEOMG!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1014 contacts →

Exact match

“VM Interactive is a digital marketing agency with real passion for driving traffic.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchChelmsford, United KingdomHQ recorded Sep 29, 20261-1013 contacts →

Exact match

“SEO is no walk in the park.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchCheltenham, United KingdomHQ recorded Sep 29, 202611-5013 contacts →

Exact match

“We help our clients understand that their websites can work just as hard as their sales teams.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5013 contacts →

Exact match

“Award-Winning SEO Agency for $1M+ Tech Companies (SaaS, Web) and 6-figure E-Commerce Brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“It’s time to make your business grow.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchBirmingham, United KingdomHQ recorded Sep 29, 20261-1012 contacts →

Exact match

“WE WORK WITH AMBITIOUS BRANDS TO DOMINATE GOOGLE.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchManchester, United KingdomHQ recorded Sep 29, 20261-1012 contacts →

Exact match

“We're a Search Engine Marketing agency that specialises in high-performance, high-accountability SEO & PPC campaigns.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchNewport, United KingdomHQ recorded Sep 29, 202611-5011 contacts →

Exact match

“As experienced Digital Media professionals we have a wide range of valuable experience which we can apply to make your website work for you.”

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

Showing 25 of 772 SEO companies for startups based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 473 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

SEO companies for startups based in the United Kingdom at a glance

As of Sep 29, 2026
15.9%Verified-email coverage
3.9Average contacts per company
1-10Median size (employees)
28.0%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
592
11-50
156
51-200
16
201-500
2
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 772 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 “SEO companies for startups” 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 473 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.

SEO companies for startups by metro

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 “SEO companies for startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many SEO companies for startups are there based in the United Kingdom?

RevenueBase identified 772 company matches for SEO companies for startups 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?

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

Which city has the most SEO companies for startups?

London leads with 216 company records, followed by Manchester (27) and Birmingham (22).

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 473 professional contacts with verified work emails tracked across these 772 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 772 SEO companies for startups based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.