Company lists · Data refreshed September 2026

Top 25 Website optimization consultancies based in the United Kingdom

RevenueBase identified 2,214 company matches for website optimization consultancies associated with the United Kingdom as of September 2026 and tracks 9,340 professional contacts across them, including 1,793 with verified work emails. London is the largest hub.

This list covers company matches for website optimization consultancies 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
2,214Companies
9,340Contacts tracked
1,793Verified emails
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The 25 largest website optimization consultancies based in the United Kingdom

Ranked by team size
Top 25 of 2,214 company matches for website optimization consultancies 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, 202651-200112 contacts →

Exact match

“GAIN Conversion is the world's leading CRO agency.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact 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
3Exact 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
4Exact 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
5Exact matchBelfast, United KingdomHQ recorded Sep 29, 202651-20051 contacts →

Exact match

“A leading web design and website development company in Belfast, serving clients across Northern Ireland, Ireland, UK and the rest of the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact matchLeeds, United KingdomHQ recorded Sep 29, 202611-5043 contacts →

Exact match

“Here to help your business achieve a change of speed or direction, and accelerate your growth.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
13Exact 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
14Exact matchWarrington, United KingdomHQ recorded Sep 29, 202611-5033 contacts →

Exact match

“Atomic is a Digital Marketing Agency based in Cheshire and Hampshire, specialising in PPC, SEO & Web Design.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5032 contacts →

Exact match

“Somebody is a full service digital agency with a one track mind – getting you customers, not just clicks.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchReading, United KingdomHQ recorded Sep 29, 202611-5029 contacts →

Exact match

“We're a search and generative engine optimisation consulgency™, driving SEO success and shaping the future with GEO.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchManchester, United KingdomHQ recorded Sep 29, 202611-5027 contacts →

Exact match

“PushON are an award-winning full service ecommerce agency based in Manchester, with clients throughout the UK.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchLeeds, United KingdomHQ recorded Sep 29, 202611-5027 contacts →

Exact match

“We create digital experiences.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchSheffield, United KingdomHQ recorded Sep 29, 202611-5026 contacts →

Exact match

“We are an award-winning, Google Premier Partner agency providing a range of high-quality internet marketing services with a strong focus on client ROI and ethical best practice…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5026 contacts →

Exact match

“We help B2B service firms turn their websites into consistent sources of high-quality enquiries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchEpsom, United KingdomHQ recorded Sep 29, 202611-5025 contacts →

Exact match

“As specialists in Web Performance, Customer Experience and Technical Development, our digital marketing services ensure that your online strategy delivers results and improvements…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5025 contacts →

Exact match

“We help companies grow with revenue-driven SEO.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchStockport, United KingdomHQ recorded Sep 29, 202611-5024 contacts →

Exact match

“Platform81 is a digital agency specialising in high performance websites, SEO and paid media, helping businesses across the UK grow online since 2008.”

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

Showing 25 of 2,214 website optimization consultancies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,793 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Website optimization consultancies based in the United Kingdom at a glance

As of Sep 29, 2026
19.2%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
23.7%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,809
11-50
347
51-200
38
201-500
5
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 2,214 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 “website optimization consultancies” 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 1,793 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 “website optimization consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many website optimization consultancies are there based in the United Kingdom?

RevenueBase identified 2,214 company matches for website optimization consultancies 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?

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

Which city has the most website optimization consultancies?

London leads with 524 company records, followed by Manchester (67) and Birmingham (50).

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 1,793 professional contacts with verified work emails tracked across these 2,214 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.

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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.