Company lists · Data refreshed September 2026
Top 25 SaaS SEO agencies based in London, United Kingdom
RevenueBase identified 424 SaaS SEO agencies headquartered in London, United Kingdom as of September 2026 and tracks 2,121 professional contacts across them, including 403 with verified work emails. London is the largest hub.
This list covers SaaS SEO agencies headquartered in London, 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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.
The 25 largest SaaS SEO agencies based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 77 | ||||
“At MediaVision, we believe there's potential hidden in every search.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 57 | ||||
“Get found online.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 52 | ||||
“SUSO Digital is an award-winning SEO and AI Search agency.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 44 | ||||
“KD Web is an award winning internet marketing, web design and creative agency, providing SEO, polished website design, Ecommerce and CMS systems as well as branding and graphic…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 38 | ||||
“Distinctly is an independent digital marketing agency with a passion for SEO, paid media, digital PR and content.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 | ||||
“SaaS marketing strategy and execution team for B2B brands with limited in-house resources.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“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.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 30 | ||||
“Iconic Digital is a leading digital marketing agency based in London, UK.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 | ||||
“Gripped is a digital first sales & marketing agency for B2B SaaS, technology & IT companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 | ||||
“We help ambitious brands dominate online.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | KAU Media GroupIndirect evidence | 27 | |||
“KAU Media Group is a full service media agency that deliver compelling digital marketing solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 | ||||
“We help companies grow with revenue-driven SEO.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | WP MindsPartial evidence | 23 | |||
“WP Minds is a WordPress design, development, maintenance and SEO agency helping coaches, consultants and other service professionals grow with high performing WordPress websites…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 | ||||
“We are a globally remote team connected by cloud technology and a passion for all things SEO.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 | ||||
“Re:signal is the digital growth consultancy for eCommerce brands that want clarity, commercial focus, and dependable results.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 | ||||
“SEOSkit is a result-driven SEO agency with 9+ years of hands-on experience helping businesses grow through organic search.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 | ||||
“Digital Search Group Limited is a performance driven online marketing agency built on highly knowledgeable foundations, which have grown over 16 years of providing online…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | FSE DigitalIndirect evidence | 16 | |||
“At FSE Digital, we love helping ambitious SMEs grow.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 | ||||
“With more ways than ever for consumers to find your brand, we make you visible wherever they’re searching, going beyond best practice to build holistic search strategies for…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 | ||||
“Bough Digital is a professional full-service digital marketing company based in the UK, which aims to deliver a first-class, full scale service to a variety of clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | VM InteractiveIndirect evidence | 14 | |||
“VM Interactive is a digital marketing agency with real passion for driving traffic.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 | ||||
“Award-Winning SEO Agency for $1M+ Tech Companies (SaaS, Web) and 6-figure E-Commerce Brands.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 | ||||
“It’s time to make your business grow.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Silvertip DigitalIndirect evidence | 11 | |||
“We are Silvertip Digital.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Position DigitalIndirect evidence | 10 | |||
“Your audience is no longer just Googling.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 424 SaaS SEO agencies based in London, United Kingdom
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SaaS SEO agencies based in London, United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for London, over 424 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 SaaS SEO agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in London, United Kingdom whose own description of what they do matches “SaaS SEO agencies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among SaaS SEO agencies, and records with no verified work email. Companies headquartered outside London 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 an evidence 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, 403 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 6, 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.
SaaS SEO agencies by metro in the United Kingdom
- SaaS SEO agencies in London424
- SaaS SEO agencies in Manchester67
- SaaS SEO agencies in Birmingham59
- SaaS SEO agencies in Leeds26
Frequently asked
How many SaaS SEO agencies are there based in London, United Kingdom?
RevenueBase identified 424 SaaS SEO agencies headquartered in London, 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 SaaS SEO agencies?
London leads with 424 headquartered companies, followed by Manchester (67) and Birmingham (59).
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 403 verified decision-maker contacts tracked across these 424 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 6, 2026.
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SaaS SEO agencies by geography
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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.