Company lists · Data refreshed September 2026
Top 25 SEO tools based in the United Kingdom
RevenueBase identified 150 SEO tools headquartered in the United Kingdom as of September 2026 and tracks 639 professional contacts across them, including 109 with verified work emails. London is the largest hub.
This list covers SEO tools 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 21, 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.
The 25 largest SEO tools based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 77 contacts → | ||||
Indirect evidence “At MediaVision, we believe there's potential hidden in every search.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 48 contacts → | ||||
Indirect evidence “Screaming Frog is a search marketing agency drawing on years of experience from within the world of digital marketing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 36 contacts → | ||||
Partial evidence “Pi Datametrics is the enterprise SEO and search intelligence platform built for the AI era of search.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 contacts → | ||||
Partial evidence “SearchPilot is an SEO A/B testing platform and meta-CMS that enables rapid SEO changes for large websites.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 contacts → | ||||
Indirect evidence “Sitebulb is website crawling without compromise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 7 contacts → | ||||
Partial evidence “Hobo SEO Services Providing SEO Audits and SEO Consultation services” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6 contacts → | ||||
Indirect evidence “You deserve to be discovered when your ideal customer searches.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Partial evidence “DubSEO is a London based SEO company, a group of professionals who combine our individual expertise to form a highly successful team, helping individuals, companies and charities…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Partial evidence “The SEO tool for actionable insights and quick wins.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4 contacts → | ||||
Indirect evidence “Wordtracker offers a powerful Keyword tool that gives you the data to improve your search rankings, attract high levels of targeted visitors to your site, and raise conversion…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Partial evidence “Specialising in data-driven SEO services, we focus solely on helping businesses build their online presence, boost their brand, and increase their organic search traffic.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2 contacts → | ||||
Indirect evidence “At Both Birds we’re passionate optimisers, which means we'll always try to provide digital marketing solutions that solve more than one problem at a time.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 contacts → | ||||
Indirect evidence “Online strategies for e-commerce success” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 contacts → | ||||
Partial evidence “WE BUILD + CREATE + SHARE Liverpool-Based SEO & Web Design Digital Marketing Agency Over 1485 Projects Completed For Over 350 Clients Worldwide Since 2015!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Indirect evidence “MarketingTech works with Heathcare, Professional Services and eCommerce businesses to ensure they're searchable on Google, LLMs and will consistently generate qualified leads in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Partial evidence “KickstartSEO are the SEO Fitness Specialists taking UK businesses from invisible to unmissable.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Partial evidence “SEO Services in London * Search Engine Optimisation in London, UK * Content Marketing Heffalump Ltd is an SEO company that aims to provide a transparent, simple services with…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 contacts → | ||||
Partial evidence “At Joe Wills, we understand that in SEO, real results are driven by action.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Partial evidence “Technical SEO audits Site migration or launch SEO consultation In-depth keyword research Backlink analysis Penguin/Panda and algorithm update penalty recovery B2C and eCommerce…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Partial evidence “Helping you attract more customers from SEO SEO’s not a dark art but one that can be harnessed by all Invaluable SEO audits, strategy & training by Jon MonkORGATE HOUSE 7B STATION…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Strong evidence “Moonlit Platform is a Web Application designed to help SEO & content professionals build & explore custom AI tools.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “SEO is one of the most effective marketing tools out there, but we've realised that many people don’t know how or where to begin, or don’t have the resources to get the ball…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Meraki SEO deliver strategies that work.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “See what your customers see when they search for your products and services in Google.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “We offer affordable search engine optimisation services to small and medium sized businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: SEO tools. 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 SEO tools.
- Partial evidence
- Its own public description names part of SEO tools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name SEO tools. 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 150 SEO tools based in the United Kingdom
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SEO tools based in the United Kingdom at a glance
As of Sep 21, 2026Companies by employee count
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 150 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 SEO tools, 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 “SEO tools”. 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 SEO tools), 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 SEO tools, 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, 109 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 21, 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.
SEO tools by metro
- SEO tools in London46
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 SEO tools, 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 SEO tools are there based in the United Kingdom?
RevenueBase identified 150 SEO tools 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?
Mediavision, headquartered in London, tops this list with the largest team on record.
Which city has the most SEO tools?
London leads with 46 headquartered companies, followed by Manchester (8) and Birmingham (6).
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 109 verified decision-maker contacts tracked across these 150 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 21, 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.