Company lists · Data refreshed November 2026

Top 25 Site speed optimization agencies based in the United Kingdom

RevenueBase identified 233 company matches for site speed optimization agencies associated with the United Kingdom as of November 2026 and tracks 722 professional contacts across them, including 135 with verified work emails. London is the largest hub.

This list covers company matches for site speed optimization agencies 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 November 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
233Companies
722Contacts tracked
135Verified emails
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The 25 largest site speed optimization agencies based in the United Kingdom

Ranked by team size
Top 25 of 233 company matches for site speed optimization agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 202611-5029 contacts →

Exact match

“We're Hookflash.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchStockport, United KingdomHQ recorded Nov 6, 202611-5029 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrighton, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“WeDoAllTech is a Brighton based digital marketing agency, offering a team of skilled SEO specialists, CRO designers & developers that focus on lead gen + sales, with exceptional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Merj is your partner for SEO and AEO.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNewport, United KingdomHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchExeter, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Sound in Theory has enjoyed a thriving business for 15 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“At Creative Ecommerce we specialise in helping Shopify brands improve their page speed, conversion rates and average order value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchTotnes, United KingdomHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Webselect is a full-service web design, development and optimisation agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLeeds, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Data fuelled, people powered, conversion driven, performance engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGreenock, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Hobo SEO Services Providing SEO Audits and SEO Consultation services”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSouthampton, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“An optimised website will be the cornerstone of your business activities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLeicester, United KingdomHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Horizon Digital Agency is an integrated Digital and SEO agency, combining web design and development with leading SEO specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSouthampton, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Targeted SEO is a growing and ambitious SEO agency based in Southampton.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchOxford, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“The best digital experiences happen when technical optimisation meets thoughtful, inclusive design.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“We don’t just optimise for Google and AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWeston-super-mare, United KingdomHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Arken Digital specialises in sustainable SEO, ROI is always on our mind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchShropshire, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Ultimately Better are a WordPress agency based predominantly in the Midlands, servicing clients worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLeeds, United KingdomHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Deepblue-digital have over 25 years experience in SEO web design and digital marketing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLiverpool, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“WE BUILD + CREATE + SHARE Liverpool-Based SEO & Web Design Digital Marketing Agency Over 1485 Projects Completed For Over 350 Clients Worldwide Since 2015!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Web development and marketing agency delivering fast, scaleable and accessible websites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchChorley, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Branch helps organisations turn underperforming WordPress websites into assets that generate more enquiries, sales, and bookings, without introducing risk or disruption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKenilworth, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“A collective of digital specialists that create fast, mobile friendly and search engine optimised websites, and help businesses improve and promote their websites through…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCoventry, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Is your website slow, insecure or hard on the eyes?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Almanac Digital is a small digital services agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBurntwood, United KingdomHQ recorded Nov 6, 20261-102 contacts →

Exact match

“ClickPower’s goal is to help owners of SMEs increase their visibility online.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 233 site speed optimization agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 135 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Site speed optimization agencies based in the United Kingdom at a glance

As of Nov 6, 2026
18.7%Verified-email coverage
3.1Average contacts per company
1-10Median size (employees)
29.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
193
11-50
28
51-200
3

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 233 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 “site speed optimization agencies” 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 135 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 November 6, 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.

Site speed optimization agencies 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 “site speed optimization agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many site speed optimization agencies are there based in the United Kingdom?

RevenueBase identified 233 company matches for site speed optimization agencies associated with the United Kingdom as of November 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?

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

Which city has the most site speed optimization agencies?

London leads with 69 company records, followed by Manchester (9) and Birmingham (6).

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 135 professional contacts with verified work emails tracked across these 233 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 November 6, 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.