Company lists · Data refreshed September 2026
Top 25 Architectural firms based in Belfast, United Kingdom
RevenueBase identified 56 architectural firms headquartered in Belfast, United Kingdom as of September 2026 and tracks 441 professional contacts across them, including 211 with verified work emails. London is the largest hub.
This list covers architectural firms 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 6, 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 architectural firms based in Belfast, United Kingdom
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Strong evidence | 47 contacts → | |||
“Award-winning architects offering building and design services in Commercial, Sports, Educational and Residential architecture.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Strong evidence | 37 contacts → | |||
“White Ink is an Employee-Owned RIBA Chartered Architectural practice – primarily providing Architectural services to clients, developers and contractors throughout the UK, Ireland…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Strong evidence | 34 contacts → | |||
“RPP is a creative architectural practice with 40 years + experience in designing memorable buildings and interiors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Indirect evidence | 27 contacts → | |||
“Park Hood respond to our diverse Client requirements, delivering designs which are innovative and dynamic, through a process of observation, creative interpretation and attention…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Strong evidence | 26 contacts → | |||
“Ostick + Williams Ltd, established in 1951, is an award winning architectural practice and is at the forefront of BIM adoption within the UK and Ireland.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 16 contacts → | |||
“Established in 1987, Albert Fry Associates provide structural and civil engineering consultancy services from our offices in Belfast and Dublin.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 14 contacts → | |||
“Based in Belfast, Michael Martin and Ciaran Deazley lead the LIKE team bringing more than thirty years’ experience in retail, leisure, commercial, conservation and residential…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Strong evidence | 13 contacts → | |||
“Samuel Stevenson & Sons was founded in 1886 and is the longest established Architectural Practice in Northern Ireland.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Strong evidence | 12 contacts → | |||
“MMAS is an RIBA chartered architecture practice based in Belfast and with ongoing projects throughout Ireland, ranging from housing developments, public space projects, temporary…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Indirect evidence | 9 contacts → | |||
“Collins Rolston is a dynamic and energetic team of highly skilled and committed architects & specialists with a reputation for the delivery of buildings of the highest quality on…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Strong evidence | 8 contacts → | |||
“Gregory Architects are one of Northern Ireland’s longest established architectural practices, with fresh thinking and a design led approach to deliver modern innovative solutions…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Strong evidence | 7 contacts → | |||
“Founded in 2001, Urban Innovations is an architectural and urban design consultancy based in the heart of Belfast.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Indirect evidence | 7 contacts → | |||
“Our purpose at Rejen Architects is to create a more healthy, vibrant, and sustainable world by breathing new life into buildings and places.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Indirect evidence | 6 contacts → | |||
“Working closely with our clients we create practical, sustainable buildings tailored to meet the specific needs of each project.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Strong evidence | 6 contacts → | |||
“GMR ARCHITECTS LTD is an architecture & planning company based out of 411a Ormeau Road, Belfast, BT7 3GP” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Indirect evidence | 5 contacts → | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Strong evidence | 5 contacts → | |||
“McLean & Forte offer a wide range of services in the design & procurement of construction projects; Architecture Interior Design Feasibility Studies Contract Administration…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 4 contacts → | |||
“We bring your building to life.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Strong evidence | 4 contacts → | |||
“Architecture and design company specialising in retail sector.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 3 contacts → | |||
“At Doherty Architects we offer our existing and prospective clients a quality bespoke service.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Strong evidence | 3 contacts → | |||
“StudioPARK Architects are a collaborative, design focused and innovative architecture practice.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Strong evidence | 3 contacts → | |||
“Rapport Architects is an award-winning RIBA chartered Architecture Studio based in East Belfast, comprising a team of highly skilled, dedicated, and creative designers, boasting…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 2 contacts → | |||
“Isherwood + Ellis Architects is a company based out of Belfast, United Kingdom.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 2 contacts → | |||
“Bryson Architects has a wide range of experience in carrying out a variety of commissions for public and private clients ranging from minor works to large commercial projects.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Strong evidence | 2 contacts → | |||
“Bradley McClure Architects Ltd was formed in 2003, by David Bradley and Keith McClure, and is a chartered architectural practice and a member of the RSUA and RIBA.” Source: company website · checked Sep 6, 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: architectural firms. 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 architectural firms.
- Partial evidence
- Its own public description names part of architectural firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name architectural firms. 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 56 architectural firms based in Belfast, United Kingdom
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Architectural firms based in Belfast, United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Belfast, over 56 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 architectural firms, 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 “architectural firms”. 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 architectural firms), 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 architectural firms, 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, 211 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 6, 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.
Architectural firms by metro in the United Kingdom
- Architectural firms in London2641
- Architectural firms in Manchester142
- Architectural firms in Edinburgh118
- Architectural firms in Bristol115
- Architectural firms in Glasgow114
- Architectural firms in Birmingham88
- Architectural firms in Leeds86
- Architectural firms in Nottingham60
- Architectural firms in Cambridge58
- Architectural firms in Sheffield57
- Architectural firms in Belfast56
- Architectural firms in Liverpool56
- Architectural firms in Bath52
- Architectural firms in Cardiff46
- Architectural firms in Brighton39
- Architectural firms in Newcastle Upon Tyne39
- Architectural firms in Oxford35
- Architectural firms in Southampton35
- Architectural firms in Harrogate33
- Architectural firms in York33
- Architectural firms in Norwich29
- Architectural firms in Poole29
- Architectural firms in Winchester29
- Architectural firms in Aberdeen28
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 architectural firms, 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 architectural firms are there based in Belfast, United Kingdom?
RevenueBase identified 56 architectural firms 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?
Hamilton Architects, headquartered in Belfast, tops this list with the largest team on record.
Which city has the most architectural firms?
London leads with 2641 headquartered companies, followed by Manchester (142) and Edinburgh (118).
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 211 verified decision-maker contacts tracked across these 56 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 6, 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.