Company lists · Data refreshed November 2026

Top 22 Marketplace optimization agencies based in the United Kingdom

Name: Marketplace optimization agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 4,326 companies tracked

RevenueBase identified 4,326 company matches for marketplace optimization agencies associated with the United Kingdom as of November 2026 and tracks 44,259 professional contacts across them, including 8,458 with verified work emails. London is the largest hub.

This list covers company matches for marketplace 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

4,326Companies

44,259Contacts tracked

8,458Verified emails

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The 22 largest marketplace optimization agencies based in the United Kingdom

Ranked by team size

Top 22 of 4,326 company matches for marketplace 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	YELL	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,353 contacts →
	Exact match “Since 1966, we’ve been helping UK businesses grow – from printed ads in the Yellow Pages to powerful, AI-driven digital marketing that delivers real results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	MBA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	448 contacts →
	Exact match “MBA: The Acceleration Agents, where digital and direct interconnect.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Promodo Digital Agency	Exact match	Lincoln, United KingdomHQ recorded Nov 6, 2026	201-500	375 contacts →
	Exact match “Promodo is an award-winning performance marketing agency and a reliable partner for driving measurable results in eCommerce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Eskimoz	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	240 contacts →
	Exact match “Eskimoz is an international digital acquisition agency that helps businesses optimise their revenue and boost their growth through digital channels such as GEO, SEO, Paid Search…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Impression	Exact match	Nottingham, United KingdomHQ recorded Nov 6, 2026	51-200	186 contacts →
	Exact match “We're a performance marketing agency setting the new standard of excellence through our people, our performance and our technology, with offices in Manchester, Nottingham, London…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Kinesso Uk&i	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	183 contacts →
	Exact match “KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Connective3	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	51-200	156 contacts →
	Exact match “We are a specialist performance marketing agency, and we deliver unrivalled performance for our clients on a global scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	26pmx	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	51-200	117 contacts →
	Exact match “At 26PMX, we help ambitious brands turn potential into performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Conversion	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	110 contacts →
	Exact match “GAIN Conversion is the world's leading CRO agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Infoserve	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	51-200	107 contacts →
	Exact match “Let’s face it, the world has become an increasingly digital place.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Summit	Exact match	Hull, United KingdomHQ recorded Nov 6, 2026	51-200	106 contacts →
	Exact match “Summit are Changemakers in online retailing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Adtrak	Exact match	Nottingham, United KingdomHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “We're a full-service design, marketing and brand agency based in Nottingham.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	The SEO Works	Exact match	Sheffield, United KingdomHQ recorded Nov 6, 2026	51-200	96 contacts →
	Exact match “The SEO Works are an award-winning provider of search marketing, websites and paid social for leading brands and prospering SME’s.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Amerge	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	94 contacts →
	Exact match “Amerge is an AMC-certified and award-winning full-service global Amazon agency with over 200+ years of collective ex-Amazon experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Embryo	Exact match	Manchester, United KingdomHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “We are a leading independent agency and trusted growth partner for ambitious businesses of all sizes, turning performance marketing into a growth engine.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Havas Market UK	Exact match	Leeds / London, United KingdomHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “Havas Market is a connected growth agency that brings brand, performance, commerce and loyalty together as one system.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Luzern Ecommerce	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	90 contacts →
	Exact match “Tambo is now part of Luzern eCommerce.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Brainsouls	Exact match	Birmingham, United KingdomHQ recorded Nov 6, 2026	51-200	87 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Stickyeyes	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	201-500	80 contacts →
	Exact match “Search Marketing \| Content \| Strategy Delivered by passionate people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Williams Commerce	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	79 contacts →
	Exact match “Established in 2009, Williams Commerce is a ecommerce agency focused on Building, Optimising and Growing ecommerce brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Vervaunt	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	78 contacts →
	Exact match “Vervaunt is a forward-thinking eCommerce consultancy and marketing agency, collaborating with the most ambitious and pioneering brands in the industry across full funnel…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Mediavision	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	75 contacts →
	Exact match “At MediaVision, we believe there's potential hidden in every search.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marketplace optimization agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 4,326 marketplace optimization agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,458 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marketplace optimization agencies based in the United Kingdom at a glance

As of Nov 6, 2026

19.1%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

33.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,060

11-50

1,042

51-200

174

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 4,326 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 “marketplace 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 8,458 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.

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

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

RevenueBase identified 4,326 company matches for marketplace 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?

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

Which city has the most marketplace optimization agencies?

London leads with 1447 company records, followed by Manchester (218) and Birmingham (104).

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 8,458 professional contacts with verified work emails tracked across these 4,326 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.