Company lists · Data refreshed September 2026

Top 25 Creative optimization platforms based in London, United Kingdom

Name: Creative optimization platforms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 9, 2026 233 companies tracked

RevenueBase identified 233 creative optimization platforms headquartered in London, United Kingdom as of September 2026 and tracks 11,379 professional contacts across them, including 3,883 with verified work emails and 1,421 with mobile numbers. London is the largest hub.

This list covers creative optimization platforms 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 9, 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 9, 2026 86% judged on-target in blind review

233Companies

11,379Contacts tracked

3,883Verified emails

1,421Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest creative optimization platforms based in London, United Kingdom

Ranked by team size

Top 25 of 233 creative optimization platforms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 9, 2026. RevenueBase Smart Search rates how each company's information relates to creative optimization platforms: 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	Jellyfish	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	1,001-5,000	2,119 contacts →
	Indirect evidence “Jellyfish \| Move Faster.” Source: RevenueBase Database · checked Sep 9, 2026
2	Loopme	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	201-500	401 contacts →
	Indirect evidence “LoopMe is bringing brands into apps, powered by AI agents.” Source: RevenueBase Database · checked Sep 9, 2026
3	Adstream NOW XR Extreme Reach	Strong evidence	London, United KingdomHQ checked Sep 9, 2026	1,001-5,000	213 contacts →
	Strong evidence “XR Extreme Reach is the company behind the leading tech platform powering the global creative economy.” Source: RevenueBase Database · checked Sep 9, 2026
4	VIDSY	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	192 contacts →
	Indirect evidence “Vidsy helps global brands achieve business goals with effective video ads, created efficiently and consistently for digital.” Source: RevenueBase Database · checked Sep 9, 2026
5	Invibes Advertising	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	201-500	146 contacts →
	Indirect evidence “At Invibes, our mission is to drive positive brand impact and business outcomes by prioritizing the uniqueness of every ad opportunity through valuable advertising solutions.” Source: RevenueBase Database · checked Sep 9, 2026
6	Crimtan	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	130 contacts →
	Indirect evidence “Crimtan was established in 2009 with a clear mission: to be a trusted partner for brands navigating the complex world of programmatic advertising.” Source: RevenueBase Database · checked Sep 9, 2026
7	Permutive	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	122 contacts →
	Partial evidence “Permutive is the predictive collaboration platform enabling Walled Garden outcomes on the Open Internet.” Source: RevenueBase Database · checked Sep 9, 2026
8	Pencil	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	112 contacts →
	Indirect evidence “Pencil is Marketing's AI Operating System.” Source: RevenueBase Database · checked Sep 9, 2026
9	Admixer	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	201-500	99 contacts →
	Indirect evidence “Admixer is an independent adtech company that develops an ecosystem of full-stack programmatic solutions.” Source: RevenueBase Database · checked Sep 9, 2026
10	Nest Commerce	Indirect evidence	London, United KingdomHQ checked Sep 9, 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 9, 2026
11	Adylic	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	57 contacts →
	Partial evidence “Adylic is OMG's Dynamic Creative Optimisation (DCO) specialist, enabling brands to deliver audience-first, data-driven creative, personalised to users across Display, Video…” Source: RevenueBase Database · checked Sep 9, 2026
12	Smartly Creative	Strong evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	56 contacts →
	Strong evidence “Smartly Video and Display provides the leading next-generation Creative Management Platform for marketers at the world’s largest brands to enable them to scale their digital…” Source: RevenueBase Database · checked Sep 9, 2026
13	OCM Digital Media	Indirect evidence	London, United KingdomHQ checked Sep 9, 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 9, 2026
14	Dragonfly AI	Strong evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	42 contacts →
	Strong evidence “Dragonfly AI is the world’s smartest creative testing platform, powered by a patented biological algorithm that simulates how the human brain responds to visual content.” Source: RevenueBase Database · checked Sep 9, 2026
15	Human Made Machine	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	41 contacts →
	Partial evidence “Human Made Machine equip modern marketers with the tools to know the impact of their creative.” Source: RevenueBase Database · checked Sep 9, 2026
16	FIFTY	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	51-200	41 contacts →
	Indirect evidence “Fifty is a technology-first media partner helping brands and agencies grow through smarter media strategy, planning and activation.” Source: RevenueBase Database · checked Sep 9, 2026
17	Unruly	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	501-1,000	39 contacts →
	Indirect evidence “Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them.” Source: RevenueBase Database · checked Sep 9, 2026
18	Sembot	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	39 contacts →
	Indirect evidence “Focus on strategy, not manually time-consuming tasks.” Source: RevenueBase Database · checked Sep 9, 2026
19	Automated Creative	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	38 contacts →
	Partial evidence “Our platform helps performance marketers scale social, display and retail media campaigns.” Source: RevenueBase Database · checked Sep 9, 2026
20	dooh.com	Partial evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	31 contacts →
	Partial evidence “DOOH.com is a creative production studio specialising in all things digital out of home.” Source: RevenueBase Database · checked Sep 9, 2026
21	Catalyst	Partial evidence	London, United KingdomHQ checked Sep 9, 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 9, 2026
22	upp.ai	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	31 contacts →
	Indirect 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 9, 2026
23	Funnelfuel	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	29 contacts →
	Indirect evidence “Future-proofing B2B digital advertising and analytics in a cookieless world.” Source: RevenueBase Database · checked Sep 9, 2026
24	Shook Digital	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	29 contacts →
	Indirect evidence “Shook helps brands win in the short-form video era by combining AI, creators, and performance data with automation to make ads that actually perform.” Source: RevenueBase Database · checked Sep 9, 2026
25	Voise Tech LTD	Indirect evidence	London, United KingdomHQ checked Sep 9, 2026	11-50	25 contacts →
	Indirect evidence “At Voise Tech, we simplify the complexity of digital advertising through.” Source: RevenueBase Database · checked Sep 9, 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: creative optimization platforms. 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 creative optimization platforms.
Partial evidence: Its own public description names part of creative optimization platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name creative optimization platforms. 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 233 creative optimization platforms based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,883 reachable decision-makers.

Free signup · no credit card

View the full list →

Creative optimization platforms based in London, United Kingdom at a glance

As of Sep 9, 2026

34.1%Verified-email coverage

12.5%Mobile-number coverage

48.8Average contacts per company

11-50Median size (employees)

116.3%Largest-city concentration · London

Sep 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

100

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 11.0d

3,5360–30

30631–60

061–90

090–180

41180+

Company record updated

Median 58.0d

00–30

6,18231–60

3,82661–90

83190–180

540180+

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 creative optimization platforms, 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 “creative optimization platforms”. 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 creative optimization platforms), 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 creative optimization platforms, 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, 3,883 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 9, 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.

Creative optimization platforms by metro in the United Kingdom

Creative optimization platforms in London271

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 creative optimization platforms, 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 creative optimization platforms are there based in London, United Kingdom?

RevenueBase identified 233 creative optimization platforms 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?

Jellyfish, headquartered in London, tops this list with the largest team on record.

Which city has the most creative optimization platforms?

London leads with 271 headquartered companies, followed by Manchester (11) and Birmingham (8).

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 3,883 verified decision-maker contacts tracked across these 233 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 9, 2026.

Ready to reach these companies? Verified emails and direct dials for all 233 creative optimization platforms based in London, United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Creative optimization platforms by geography

Browse the directory

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.