Company lists · Data refreshed September 2026

Top 25 Igaming retention marketing agencies based in London, United Kingdom

Name: Igaming retention marketing 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 28, 2026 79 companies tracked

RevenueBase identified 79 igaming retention marketing agencies headquartered in London, United Kingdom as of September 2026 and tracks 1,298 professional contacts across them, including 564 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers igaming retention marketing 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 28, 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 28, 2026 86% judged on-target in blind review

79Companies

1,298Contacts tracked

564Verified emails

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The 25 largest igaming retention marketing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 79 igaming retention marketing agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to igaming retention marketing 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	BRAGG	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	355 contacts →
	Partial evidence “Bragg Gaming Group, “bragg” (NASDAQ: BRAG, TSX: BRAG) crafts igaming environments that elevate player experiences.” Source: RevenueBase Database · checked Sep 28, 2026
2	Gimo Global Interactive Marketing Online LTD	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	207 contacts →
	Strong evidence “GIMO is an award-winning independent marketing agency and software developer specialising in services within the iGaming industry.” Source: RevenueBase Database · checked Sep 28, 2026
3	Casimba Gaming	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	108 contacts →
	Partial evidence “Casimba Gaming, offering customers an even greater range of products and services while further solidifying its position in the iGaming industry.” Source: RevenueBase Database · checked Sep 28, 2026
4	QIH Group	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	38 contacts →
	Strong evidence “Founded in 2014, QiH is an international group of companies focused on digital marketing within the iGaming industry and active in multiple markets around the globe.” Source: RevenueBase Database · checked Sep 28, 2026
5	Partis	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	18 contacts →
	Indirect evidence “Partis Solutions is a global leader in the provision of corporate services to the Interactive Gaming & Gambling industry.” Source: RevenueBase Database · checked Sep 28, 2026
6	Fourfifty	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Who Are Fourfifty- Leading online multi-channel, multi-platform operator - Strong talent of employees across 4 countries - UX/UI specialists & proprietary game developers -…” Source: RevenueBase Database · checked Sep 28, 2026
7	Olikaone LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “OLIKAONE LTD is a fast growing digital media company specialized in the online gaming industry with offices in London.” Source: RevenueBase Database · checked Sep 28, 2026
8	Rise The BET	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Strong evidence “We are performance-driven experts in Sports Betting & iGaming Marketing.” Source: RevenueBase Database · checked Sep 28, 2026
9	ibex.ai	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Ibex enables you to use machine learning algorithms to predict the best marketing action for each customer.” Source: RevenueBase Database · checked Sep 28, 2026
10	The Normal Company	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Strong evidence “We generate on average 36X ROI through retention based marketing systems.(Yes, really) A team of retention based, email marketing experts, trusted by some of the worlds biggest…” Source: RevenueBase Database · checked Sep 28, 2026
11	Battlecat	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Battlecat were formed in 2022, from a group of marketing, design and tech professionals who wanted to do i-gaming differently.” Source: RevenueBase Database · checked Sep 28, 2026
12	Postman	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Founded with the vision of revolutionizing email marketing for e-commerce brands.” Source: RevenueBase Database · checked Sep 28, 2026
13	Whitezip	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	9 contacts →
	Partial evidence “Whitezip are a global marketing agency offering acquisition, customer services, affiliate marketing, design and development services.” Source: RevenueBase Database · checked Sep 28, 2026
14	Elliotdigital Retention Marketing Agency	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “We build dynamic strategies that are creative, data-driven and customer centric, to reach new heights for our brand partners.” Source: RevenueBase Database · checked Sep 28, 2026
15	Versatile Staffing Solutions LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “Versatile Staffing Solutions is made up of Consultants with a combined experience of 15+ years in the recruitment industry.” Source: RevenueBase Database · checked Sep 28, 2026
16	438 Digital	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “438 Digital make brands, content and websites for the iGaming and recruitment industries.” Source: RevenueBase Database · checked Sep 28, 2026
17	CHIPS	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Chips is an iGaming agency with a deep stack of talent and over 50 years of digital gaming experience.” Source: RevenueBase Database · checked Sep 28, 2026
18	Gaming Recruitment Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Gaming Recruitment Solutions is a specialist Gaming Recruitment Agency focused on sourcing the best talent for the International Betting & Gaming Industries.” Source: RevenueBase Database · checked Sep 28, 2026
19	Fresh8 Gaming ACQ By Sportradar	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Fresh8 Gaming is totally unique and innovative technology business, working in the sports betting and casino space.” Source: RevenueBase Database · checked Sep 28, 2026
20	Gameface Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Delivering Difference-Makers Globally.” Source: RevenueBase Database · checked Sep 28, 2026
21	Bettor Believe	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “A collaboration of consultants with a proven track record within betting and gaming recruitment has led to the formation of Bettor Believe, a trusted partner for recruitment and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Herobox Studios	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Herobox is design, development and production studio working with Betting and Gaming startups and enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
23	Cyclickal	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Cyclickal are betting and gaming growth specialists.” Source: RevenueBase Database · checked Sep 28, 2026
24	RAD Media	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “RAD Media is a digital marketing company that specialises in generating new leads for betting operators globally.” Source: RevenueBase Database · checked Sep 28, 2026
25	Markethink International	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “With the presence of Markethink the goal is to position a strong iGaming presence by offering advanced B2B consulting services to our clients.” Source: RevenueBase Database · checked Sep 28, 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: igaming retention marketing 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 igaming retention marketing agencies.
Partial evidence: Its own public description names part of igaming retention marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name igaming retention marketing 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 79 igaming retention marketing agencies based in London, United Kingdom

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Igaming retention marketing agencies based in London, United Kingdom at a glance

As of Sep 28, 2026

43.5%Verified-email coverage

16.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 79 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 igaming retention marketing 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 “igaming retention marketing 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 igaming retention marketing 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 igaming retention marketing 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, 564 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 28, 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.

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 igaming retention marketing 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 igaming retention marketing agencies are there based in London, United Kingdom?

RevenueBase identified 79 igaming retention marketing 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?

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

Which city in the United Kingdom has the most igaming retention marketing agencies?

London leads the United Kingdom with 79 headquartered companies, followed by Manchester (9) and Norwich (4).

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 564 verified decision-maker contacts tracked across these 79 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 28, 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.