Company lists · Data refreshed September 2026

Top 25 Performance marketing software developers based in London, United Kingdom

Name: Performance marketing software developers based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 300 companies tracked

RevenueBase identified 300 performance marketing software developers headquartered in London, United Kingdom as of September 2026 and tracks 5,385 professional contacts across them, including 999 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers performance marketing software developers 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

300Companies

5,385Contacts tracked

999Verified emails

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The 25 largest performance marketing software developers based in London, United Kingdom

Ranked by team size

Top 25 of 300 performance marketing software developers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to performance marketing software developers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kinesso Uk&i	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	194 contacts →
	Strong evidence “KINESSO UK is the award-winning, tech-driven performance marketing agency delivering actionable growth for direct clients and agency partners.” Source: RevenueBase Database · checked Sep 29, 2026
2	Permutive	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	122 contacts →
	Indirect evidence “Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Source: RevenueBase Database · checked Sep 29, 2026
3	The Media People	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	83 contacts →
	Indirect evidence “Powered by our people, our campaigns put your audience first.” Source: RevenueBase Database · checked Sep 29, 2026
4	Nest Commerce	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	69 contacts →
	Indirect evidence “Nest Commerce is a technology-led agency working with brands like Urban Outfitters, Hims and Damson Madder.” Source: RevenueBase Database · checked Sep 29, 2026
5	Clicksco	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	66 contacts →
	Indirect evidence “As a new chapter in our Digital Agency begins, we are also a fantastic place to work, with a reputation for discovering and nurturing some of the finest minds in the business…” Source: RevenueBase Database · checked Sep 29, 2026
6	ROAST	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	57 contacts →
	Indirect evidence “We are ROAST.” Source: RevenueBase Database · checked Sep 29, 2026
7	59a	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	55 contacts →
	Indirect evidence “59A is a technology business built to engineer opportunity within the ever increasing complexity of media strategy, planning, and buying.” Source: RevenueBase Database · checked Sep 29, 2026
8	OCM Digital Media	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	54 contacts →
	Indirect evidence “OCM is a leading adtech agency providing solutions to advertisers, advertising agencies and to web, mobile & video publishers.” Source: RevenueBase Database · checked Sep 29, 2026
9	Wediscover Performance Marketing & Technology Agency	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	53 contacts →
	Strong evidence “WeDiscover was created to redefine performance marketing by integrating cutting-edge technology with expert performance marketers.” Source: RevenueBase Database · checked Sep 29, 2026
10	BAMBU	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	n/a	45 contacts →
	Partial evidence “Bambu is an online marketing and advertising agency based in London, working with startup and growth brands across the UK, Europe and North America, founded by two ex-WPP…” Source: RevenueBase Database · checked Sep 29, 2026
11	ADWMG	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	43 contacts →
	Indirect evidence “adWMG, a division of WMG International, is a leading ad-tech company specializing in programmatic game promotion and monetization.” Source: RevenueBase Database · checked Sep 29, 2026
12	Sembot	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	39 contacts →
	Indirect evidence “Focus on strategy, not manually time-consuming tasks.” Source: RevenueBase Database · checked Sep 29, 2026
13	Automated Creative	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	38 contacts →
	Partial evidence “Our platform helps performance marketers scale social, display and retail media campaigns.” Source: RevenueBase Database · checked Sep 29, 2026
14	Amplifyd	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	32 contacts →
	Partial evidence “Most high-growth advertisers eventually hit a performance ceiling and assume the answer is to spend more or hire more.” Source: RevenueBase Database · checked Sep 29, 2026
15	Driftrock	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	31 contacts →
	Indirect evidence “Driftrock is the automotive customer acquisition platform, used by 35+ global brands across 32 markets, including BMW, OMODA & JAECOO, BYD, Mercedes-Benz, and Hyundai Motor Group.” Source: RevenueBase Database · checked Sep 29, 2026
16	Catalyst	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	31 contacts →
	Partial evidence “Scaling Meta Accounts Through Mass Creative Creative Strategy Performance Brilliance UGC, Hifi, Motion & Graphic Design Catalyst helps ambitious brands scale through world-class…” Source: RevenueBase Database · checked Sep 29, 2026
17	upp.ai	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	31 contacts →
	Partial evidence “Maximise Google PMax Performance Upp.ai interprets billions of product and market data points to allow you to successfully deploy more Ad budget across a wider range of products…” Source: RevenueBase Database · checked Sep 29, 2026
18	Funnelfuel	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect evidence “Future-proofing B2B digital advertising and analytics in a cookieless world.” Source: RevenueBase Database · checked Sep 29, 2026
19	Voise Tech LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	25 contacts →
	Indirect evidence “At Voise Tech, we simplify the complexity of digital advertising through.” Source: RevenueBase Database · checked Sep 29, 2026
20	Adludio	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	24 contacts →
	Indirect evidence “Adludio is an award-winning, AI-powered platform that delivers brand outcomes through interactive mobile advertising.” Source: RevenueBase Database · checked Sep 29, 2026
21	Mobisharks	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Mobisharks is the innovative company that brings together brands, agencies, advertisers and mobile users.” Source: RevenueBase Database · checked Sep 29, 2026
22	OPTEO	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Strong evidence “Opteo is a Marketing Efficiency Platform that helps performance teams reduce waste and maximise performance across all paid media channels.” Source: RevenueBase Database · checked Sep 29, 2026
23	Scale Digital	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Partial evidence “Scale Digital provides a range of performance-first solutions to help brands acquire new customers through our global network of Affiliate, Mobile, Influencer and Retail Media…” Source: RevenueBase Database · checked Sep 29, 2026
24	Accuracast	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	19 contacts →
	Partial evidence “Accuracast is an international digital marketing agency that works with ambitious brands to accelerate growth through data and technology.” Source: RevenueBase Database · checked Sep 29, 2026
25	Planit Lgpm	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	18 contacts →
	Strong evidence “With 15 years of experience, we build bespoke, data-driven performance marketing campaigns that go beyond the usual tactics.” Source: RevenueBase Database · checked Sep 29, 2026

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: performance marketing software developers. 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 performance marketing software developers.
Partial evidence: Its own public description names part of performance marketing software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name performance marketing software developers. 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 300 performance marketing software developers based in London, United Kingdom

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Performance marketing software developers based in London, United Kingdom at a glance

As of Sep 29, 2026

18.6%Verified-email coverage

17.9Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

161

11-50

104

51-200

501-1,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 300 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 performance marketing software developers, 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 London, United Kingdom whose own description of what they do matches “performance marketing software developers”. 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 performance marketing software developers), 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 performance marketing software developers, 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 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, 999 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 29, 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.

Performance marketing software developers by metro in the United Kingdom

Performance marketing software developers in Manchester36

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 performance marketing software developers, 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 performance marketing software developers are there based in London, United Kingdom?

RevenueBase identified 300 performance marketing software developers 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?

Kinesso Uk&i, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most performance marketing software developers?

London leads the United Kingdom with 300 headquartered companies, followed by Manchester (36) and Edinburgh (14).

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 999 verified decision-maker contacts tracked across these 300 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 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 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.