Company lists · Data refreshed October 2026

Top 25 International marketing agencies based in Belfast, United Kingdom

Name: International marketing agencies based in Belfast, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 88 companies tracked

RevenueBase identified 88 company matches for international marketing agencies associated with Belfast, United Kingdom as of October 2026 and tracks 487 professional contacts across them, including 224 with verified work emails. Across the United Kingdom, London is the largest hub for this category (4,562 companies); Belfast has 88.

This list covers company matches for international marketing agencies associated with Belfast, 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 October 1, 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 Oct 1, 2026 How this list was built

88Companies

487Contacts tracked

224Verified emails

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The 25 largest international marketing agencies based in Belfast, United Kingdom

Ranked by team size

Top 25 of 88 company matches for international marketing agencies based in Belfast, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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	Genesis Belfast	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	30 contacts →
	Exact match “Genesis is a multi-award winning full service agency, offering advertising, design, public relations, digital and consulting services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Loud Mouth Media LTD	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	27 contacts →
	Exact match “Loud Mouth Media is a multi-award winning performance marketing agency with offices in Belfast, Glasgow, London and Dublin- 2026 Google Premier Partner - PPC Agency of the Year…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	DHD	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	27 contacts →
	Exact match “DHD is a branding and digital agency based in Belfast, Northern Ireland.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Whitenoise	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	22 contacts →
	Exact match “Welcome to Whitenoise, a creative agency committed to transforming global brands through compelling visual experiences.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	MXB Agency	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	18 contacts →
	Exact match “We're an award-winning, full-service marketing agency specialising in brand, strategy, creative and digital.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Beingonline	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	17 contacts →
	Exact match “The service-led digital agency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Digital 24	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	14 contacts →
	Exact match “Digital Marketing Done Right.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Navigator Blue	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	14 contacts →
	Exact match “We’re an established independent communications business based in Belfast, but working with clients everywhere.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	HMC LTD	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	11 contacts →
	Exact match “HMC is a global marketing consultancy, providing market research, customer insight and sales strategy.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Green17	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	10 contacts →
	Exact match “Web Design & Development.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Elevator	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	10 contacts →
	Exact match “We are a solutions-driven creative agency made up of like-minded individuals who share a passion for creating meaningful campaigns and activations.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	Studio Mint	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	10 contacts →
	Exact match “At Studio Mint, we combine creativity with strategy to build brands that engage, create digital experiences that connect, and run marketing campaigns that get results.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Vudu Digital	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Vudu Digital (formerly WSI Digital Web) have been providing web design, eCommerce and the full suite of digital marketing services to UK and Irish clients since 2007.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Fourum	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	7 contacts →
	Exact match “Our Process It’s easy to be a creative agency that makes beautiful things.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	WEB Bureau	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	11-50	6 contacts →
	Exact match “Web design and build” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Mccadden	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “McCadden is a marketing and advertising company based out of United Kingdom.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Erudite Digital Solutions	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “We are a digital marketing company that helps businesses of all sizes develop online marketing strategies and deliver high quality, regular content.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Gekkoshot	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “We offer digital marketing services including, web design, brand creation, social media promotion and SEO services.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	AY	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	5 contacts →
	Exact match “We are a creative studio delivering meaningful impact through the thoughtful application of business expertise, creative vision and technical excellence.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Growweb	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “GrowWeb is a multi-award winning digital advertising agency specialising in Search, Display, YouTube and Social advertising.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Real Time Digital	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Real Time Digital is a digital marketing agency providing a fully managed service across web, social, search, display and video channels.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	BIG Rock Digital	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “BigRockDigital.io Big Rock Digital is a leading Digital Marketing Agency offering a comprehensive range of services including Google AdWords, Facebook Advertising, Website Design…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Silver Apples Digital LTD	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	4 contacts →
	Exact match “Welcome to Silver Apples Digital – Your Strategic Partner in Digital Marketing Excellence!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Part TWO	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “Part Two is an intuitive, creative partner for those striving to distinguish themselves.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	SQC Digital	Exact match	Belfast, United KingdomHQ recorded Oct 1, 2026	1-10	3 contacts →
	Exact match “SQC Digital, is a digital marketing agency that creates innovative digital marketing strategies and turn them into easily measured, successful campaigns, via Google Ads, YouTube…” Recorded in the RevenueBase company graph · Oct 1, 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 “international marketing 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 25 of 88 international marketing agencies based in Belfast, United Kingdom

See the full list, filter by size, metro and specialty, and access 224 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International marketing agencies based in Belfast, United Kingdom at a glance

As of Oct 1, 2026

46.0%Verified-email coverage

5.5Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United Kingdom list rather than for Belfast, so it is reported there. Company counts and contact totals on this page are exact for Belfast, over 88 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 Belfast, United Kingdom whose business descriptions match “international marketing 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 224 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 October 1, 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.

International marketing agencies by metro in the United Kingdom

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

How many international marketing agencies are there based in Belfast, United Kingdom?

RevenueBase identified 88 company matches for international marketing agencies associated with Belfast, United Kingdom as of October 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?

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

Which city in the United Kingdom has the most international marketing agencies?

London leads the United Kingdom with 4,562 company records, followed by Manchester (470) and Birmingham (302). Belfast has 88.

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 224 professional contacts with verified work emails tracked across these 88 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 October 1, 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.