Company lists · Data refreshed September 2026

Top 25 Growth hacking agencies based in London, United Kingdom

Name: Growth hacking agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 795 companies tracked

RevenueBase identified 795 growth hacking agencies headquartered in London, United Kingdom as of September 2026 and tracks 10,774 professional contacts across them, including 1,240 with verified work emails. London is the largest hub.

This list covers growth hacking agencies 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 20, 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 20, 2026 86% judged on-target in blind review

795Companies

10,774Contacts tracked

1,240Verified emails

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The 25 largest growth hacking agencies based in London, United Kingdom

Ranked by team size

Top 25 of 795 growth hacking agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to growth hacking agencies: 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	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	194 contacts →
	Partial 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 20, 2026
2	BIG Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	177 contacts →
	Indirect evidence “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Source: RevenueBase Database · checked Sep 20, 2026
3	Space & Time	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	134 contacts →
	Partial evidence “At Space & Time, we’re creating a shift in growth marketing.” Source: RevenueBase Database · checked Sep 20, 2026
4	Social Boost	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	79 contacts →
	Partial evidence “Social Boost has helped to grow more than 25 million real Followers, created content for 100+ brands, and generated over 300k sales leads.” Source: RevenueBase Database · checked Sep 20, 2026
5	GA Agency	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	70 contacts →
	Partial evidence “GA Agency is an award-winning digital marketing agency helping brands all over the world grow their business and revenue in the online space.” Source: RevenueBase Database · checked Sep 20, 2026
6	The Social Shepherd	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	68 contacts →
	Indirect evidence “Creatively playful, Commercially powerful.” Source: RevenueBase Database · checked Sep 20, 2026
7	Clicksco	Indirect evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
8	77agency	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	64 contacts →
	Indirect evidence “We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Source: RevenueBase Database · checked Sep 20, 2026
9	Tyto PR	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	54 contacts →
	Partial evidence “Tyto is the only PR and communications agency built to scale high-growth tech companies faster across Europe.” Source: RevenueBase Database · checked Sep 20, 2026
10	ADAPT	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	49 contacts →
	Partial evidence “Adapt helps global brands deliver campaigns that convert, by blending data-driven growth strategies with localisation expertise.” Source: RevenueBase Database · checked Sep 20, 2026
11	Stellar Search	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	48 contacts →
	Indirect evidence “We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.” Source: RevenueBase Database · checked Sep 20, 2026
12	ROUND	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect evidence “Round is a tech-enabled digital agency that uses content, creators, and communities to create viral moments for brands, artists, and events.” Source: RevenueBase Database · checked Sep 20, 2026
13	BAMBU	Partial evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
14	Propeller	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	44 contacts →
	Indirect evidence “We’re a digital agency delivering stand-out experiences that generate results.” Source: RevenueBase Database · checked Sep 20, 2026
15	Kinase	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	39 contacts →
	Indirect evidence “Kinase is a leading Digital Marketing Agency providing services to some of the UK’s top companies.” Source: RevenueBase Database · checked Sep 20, 2026
16	Itineris	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Partial evidence “A digital marketing agency designed to accelerate your growth.” Source: RevenueBase Database · checked Sep 20, 2026
17	Haarty Hanks	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “Haarty Hanks is a digital marketing agency comprised of tech nerds, creative designers and innovative strategists that plan and execute exceptional brand communications and web…” Source: RevenueBase Database · checked Sep 20, 2026
18	Bluedot Agency	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “A disruptive, full-service, award-winning digital marketing & advertising agency for contemporary businesses, specialising in performance marketing, content marketing…” Source: RevenueBase Database · checked Sep 20, 2026
19	Amplifyd	Partial evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
20	Somebody Digital	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	32 contacts →
	Indirect evidence “Somebody is a full service digital agency with a one track mind – getting you customers, not just clicks.” Source: RevenueBase Database · checked Sep 20, 2026
21	Mayfair Digital Agency	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	32 contacts →
	Indirect evidence “We are a digital media agency founded by the young and experienced mind that has been serving in this sector for 13 years, and the young and academic mind that has been serving in…” Source: RevenueBase Database · checked Sep 20, 2026
22	Market Rocket	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Indirect evidence “Headquartered in Knightsbridge, London, Market Rocket is an Amazon SPN Accredited Agency, Amazon EU Agency Partner, Verified Amazon Ads Partner, TikTok Shop Partner, Meta Business…” Source: RevenueBase Database · checked Sep 20, 2026
23	Media Marsons	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “Media @ Marsons helps startups, growing businesses, and established brands build high-performing digital systems for various initiatives such as generating leads, driving…” Source: RevenueBase Database · checked Sep 20, 2026
24	AXONN	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “Axonn is an established Digital Marketing Agency that specialises in content creation and campaign management.” Source: RevenueBase Database · checked Sep 20, 2026
25	Prominence Marketing Specialists For Recruitment Agencies	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “Prominence was founded out of the desire to help those in the recruitment sector respond to changes in consumer behaviour, namely the shift towards digital marketing and social…” Source: RevenueBase Database · checked Sep 20, 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: growth hacking agencies. 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 growth hacking agencies.
Partial evidence: Its own public description names part of growth hacking agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name growth hacking agencies. 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 795 growth hacking agencies based in London, United Kingdom

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Growth hacking agencies based in London, United Kingdom at a glance

As of Sep 20, 2026

11.5%Verified-email coverage

13.6Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

512

11-50

237

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 795 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 growth hacking agencies, 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 “growth hacking agencies”. 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 growth hacking agencies), 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 growth hacking agencies, 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, 1,240 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 20, 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.

Growth hacking agencies by metro in the United Kingdom

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 growth hacking agencies, 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 growth hacking agencies are there based in London, United Kingdom?

RevenueBase identified 795 growth hacking agencies 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 has the most growth hacking agencies?

London leads with 795 headquartered companies, followed by Manchester (86) and Birmingham (52).

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 1,240 verified decision-maker contacts tracked across these 795 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 20, 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.