Company lists · Data refreshed September 2026
Top 25 Digital marketing agency services based in Belfast, United Kingdom
RevenueBase identified 85 digital marketing agency services headquartered in Belfast, United Kingdom as of September 2026 and tracks 345 professional contacts across them, including 143 with verified work emails. London is the largest hub.
This list covers digital marketing agency services headquartered in Belfast, 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 24, 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.
The 25 largest digital marketing agency services based in Belfast, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 30 contacts → | ||||
Partial evidence “Genesis is a multi-award winning full service agency, offering advertising, design, public relations, digital and consulting services.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 2 | 27 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 3 | 23 contacts → | ||||
Partial evidence “i3 Digital are an experienced team of straight-talking digital experts that specialises in delivering integrated digital solutions.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 22 contacts → | ||||
Indirect evidence “Welcome to Whitenoise, a creative agency committed to transforming global brands through compelling visual experiences.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 18 contacts → | ||||
Strong evidence “We're an award-winning, full-service marketing agency specialising in brand, strategy, creative and digital.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Strong evidence “Digital Marketing Done Right.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 8 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Strong evidence “Codefixer is a data driven digital marketing agency specialising in SEO and PPC producing exceptional results.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Strong evidence “The Spider Awards - Best Small Agency 2022 Digital Media Awards - Best Newcomer 2022 A digital agency, specialising in social media & search marketing.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “Web design and build” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Partial evidence “Run DMG is a performance marketing agency helping ambitious eCommerce brands and coaches across the world scale to 7 and 8-figures.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Strong evidence “We are a digital marketing company that helps businesses of all sizes develop online marketing strategies and deliver high quality, regular content.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Strong evidence “We offer digital marketing services including, web design, brand creation, social media promotion and SEO services.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “GrowWeb is a multi-award winning digital advertising agency specialising in Search, Display, YouTube and Social advertising.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Strong evidence “Real Time Digital is a digital marketing agency providing a fully managed service across web, social, search, display and video channels.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Strong evidence “BigRockDigital.io Big Rock Digital is a leading Digital Marketing Agency offering a comprehensive range of services including Google AdWords, Facebook Advertising, Website Design…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Strong evidence “Welcome to Silver Apples Digital – Your Strategic Partner in Digital Marketing Excellence!” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Strong evidence “Broadcast Media Marketing offers Targeted Digital Marketing.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Strong evidence “Neo Digital Media is a digital content production partnership that specialises in the creation of digital marketing materials.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “Multi-award winning Digital Advertising Agency founded by Former Googler.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Four Gears: Your Business Catalyst Boasting 40+ years of industry knowledge, Four Gears seamlessly fuses global reach with a local touch.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Strong evidence “Grow your business with social media, digital content, Facebook Ads, email marketing and digital marketing training.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Whether you are an established brand or a new business, we are here to help bring your ideas for your brand to life.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
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: digital marketing agency services. 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 digital marketing agency services.
- Partial evidence
- Its own public description names part of digital marketing agency services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name digital marketing agency services. 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 85 digital marketing agency services based in Belfast, United Kingdom
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Digital marketing agency services based in Belfast, United Kingdom at a glance
As of Sep 24, 2026Companies by employee count
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 85 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 digital marketing agency services, 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 Belfast, United Kingdom whose own description of what they do matches “digital marketing agency services”. 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 digital marketing agency services), 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 digital marketing agency services, and records with no verified work email. Companies headquartered outside Belfast 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, 143 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 24, 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.
Digital marketing agency services by metro in the United Kingdom
- Digital marketing agency services in London4202
- Digital marketing agency services in Manchester537
- Digital marketing agency services in Birmingham343
- Digital marketing agency services in Leeds266
- Digital marketing agency services in Glasgow214
- Digital marketing agency services in Bristol177
- Digital marketing agency services in Liverpool155
- Digital marketing agency services in Nottingham140
- Digital marketing agency services in Edinburgh129
- Digital marketing agency services in Brighton115
- Digital marketing agency services in Sheffield98
- Digital marketing agency services in Bournemouth96
- Digital marketing agency services in Norwich94
- Digital marketing agency services in Cardiff93
- Digital marketing agency services in Leicester86
- Digital marketing agency services in Belfast85
- Digital marketing agency services in Newcastle Upon Tyne80
- Digital marketing agency services in Milton Keynes78
- Digital marketing agency services in Reading69
- Digital marketing agency services in Southampton69
- Digital marketing agency services in Northampton68
- Digital marketing agency services in Cambridge67
- Digital marketing agency services in Exeter67
- Digital marketing agency services in Preston51
- Digital marketing agency services in Wolverhampton50
- Digital marketing agency services in Colchester49
- Digital marketing agency services in Derby49
- Digital marketing agency services in Poole49
- Digital marketing agency services in Peterborough48
- Digital marketing agency services in Cheltenham46
- Digital marketing agency services in Doncaster46
- Digital marketing agency services in Warrington45
- Digital marketing agency services in Oxford42
- Digital marketing agency services in York42
- Digital marketing agency services in Hull41
- Digital marketing agency services in Bradford38
- Digital marketing agency services in Harrogate38
- Digital marketing agency services in Plymouth38
- Digital marketing agency services in Chester37
- Digital marketing agency services in Coventry34
- Digital marketing agency services in Chelmsford33
- Digital marketing agency services in Worcester33
- Digital marketing agency services in Aberdeen32
- Digital marketing agency services in Basingstoke32
- Digital marketing agency services in Portsmouth32
- Digital marketing agency services in Hove31
- Digital marketing agency services in Ipswich31
- Digital marketing agency services in Swansea30
- Digital marketing agency services in Watford30
- Digital marketing agency services in Gloucester29
- Digital marketing agency services in Huddersfield29
- Digital marketing agency services in Maidstone29
- Digital marketing agency services in Bath28
- Digital marketing agency services in Lincoln28
- Digital marketing agency services in Middlesbrough28
- Digital marketing agency services in Tunbridge Wells27
- Digital marketing agency services in Bolton26
- Digital marketing agency services in Solihull25
- Digital marketing agency services in Swindon25
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 digital marketing agency services, 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 digital marketing agency services are there based in Belfast, United Kingdom?
RevenueBase identified 85 digital marketing agency services headquartered in Belfast, 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?
Genesis Belfast, headquartered in Belfast, tops this list with the largest team on record.
Which city has the most digital marketing agency services?
London leads with 4202 headquartered companies, followed by Manchester (537) and Birmingham (343).
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 143 verified decision-maker contacts tracked across these 85 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 24, 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.
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