Company lists · Data refreshed September 2026
Top 25 Architecture companies based in Cardiff, United Kingdom
This directory lists 55 architecture companies based in Cardiff, United Kingdom, with 361 contacts and 203 email addresses. Across the United Kingdom, London is the largest hub for this category (3,848 companies); Cardiff has 55.
Architecture companies design buildings and other structures, develop plans and specifications, and advise clients on construction, renovation, and project delivery. This list covers companies that provide architectural design, planning, documentation, or related building design services. Ranked by team size, largest first. Data current as of 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 architecture companies based in Cardiff, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 63 contacts → | ||||
Indirect evidence “By providing a comprehensive range of advisory, design, cost consultancy, project management, civil and structural engineering services, we enable you to get your construction…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40 contacts → | ||||
Indirect evidence “With over five decades of experience across diverse sectors, we combine creativity with technical excellence.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 33 contacts → | ||||
Strong evidence “The HLN Group is an Award Winning design practice offering both Architectural and Engineering Services throughout the UK and Overseas Working with many of the UK’s Leading…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 contacts → | ||||
Strong evidence “We bring together town planning, masterplanning, urban design and landscape architecture (and a little architecture) to ensure we create places that people feel good about.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 22 contacts → | ||||
Strong evidence “We champion high standards of design and architecture, promoting wider understanding of the importance of good design and of enhancing the built environment.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 19 contacts → | ||||
Strong evidence “Pentan Architects is an award-winning, design-led architectural practice based in Cardiff.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Indirect evidence “Gaunt Francis is creative commercial design studio that equates business acumen and technical excellence with design creativity.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 15 contacts → | ||||
Indirect evidence “Lee Wakemans is a professional construction consultancy providing development management, project management, cost management and principal designer services.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 9 contacts → | ||||
Indirect evidence “We are Hiraeth.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Strong evidence “Jon James Studio Architecture services include: Full Architectural services for both domestic and commercial clients.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Strong evidence “Hyde + Hyde Architects are a progressive award winning architecture practice based in South Wales, Oxford and Amsterdam, with work across the UK and Europe.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Strong evidence “EPT Partnership is an award winning Cardiff based design practice offering Architectural, Project Management and Principal Designer services.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Strong evidence “Young, vibrant and creative sustainable architecture practice based in South Wales.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “Introducing Vitec Webber Lenihan Ltd.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “I am Ling, an Architect based in Cardiff.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “Downs Merrifield is a vibrant practice which has grown out of the wealth of experience of the two partners Nic Downs and Carolyn Merrifield.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect evidence “We are excited to announce the formation of Prichard Barnes Architects.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Strong evidence “A team of architectural designers and civil engineers, working together to create high quality residential developments.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “Studio Speck are a design and fit out company and we also run quality, vocational courses & workshops in interior design, CAD & Photoshop giving you the skills you need to become…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Strong evidence “cfw Architects ltd have provided a distinct, professional and sympathetic architectural consultancy service specialising in commercial, housing and community regeneration sectors.” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “With over 35 years of experience in all aspects of home renovation and improvement, Consilio Construction was established in 2020 out of a desire to combine the skills of each of…” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Civil and Structural Engineers, Project Managers & Consultants” Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Strong evidence “Sunder Architects are a Cardiff-based architectural practice with experience spanning decades and a wide sector.” Source: RevenueBase Database · 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: architecture companies. 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 architecture companies.
- Partial evidence
- Its own public description names part of architecture companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name architecture companies. 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 55 architecture companies based in Cardiff, United Kingdom
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Architecture companies based in Cardiff, 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 for Cardiff, so it is reported there. Company counts and contact totals on this page are exact for Cardiff, over 55 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 architecture companies, 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 Cardiff, United Kingdom whose own description of what they do matches “architecture companies”. 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 architecture companies), 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 architecture companies, and records with no verified work email. Companies headquartered outside Cardiff 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, 203 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.
Architecture companies by metro in the United Kingdom
- Architecture companies in London3848
- Architecture companies in Manchester201
- Architecture companies in Bristol165
- Architecture companies in Glasgow156
- Architecture companies in Edinburgh153
- Architecture companies in Birmingham129
- Architecture companies in Leeds102
- Architecture companies in Liverpool80
- Architecture companies in Belfast77
- Architecture companies in Nottingham76
- Architecture companies in Cambridge75
- Architecture companies in Sheffield71
- Architecture companies in Bath70
- Architecture companies in Newcastle Upon Tyne62
- Architecture companies in Brighton57
- Architecture companies in Southampton44
- Architecture companies in York44
- Architecture companies in Harrogate43
- Architecture companies in Oxford43
- Architecture companies in Norwich42
- Architecture companies in Poole38
- Architecture companies in Winchester37
- Architecture companies in Aberdeen35
- Architecture companies in Leicester35
- Architecture companies in Exeter31
- Architecture companies in Lincoln31
- Architecture companies in Altrincham30
- Architecture companies in Derby29
- Architecture companies in Portsmouth29
- Architecture companies in Cheltenham28
- Architecture companies in Canterbury27
- Architecture companies in Chelmsford27
- Architecture companies in Colchester27
- Architecture companies in Preston27
- Architecture companies in Hove26
- Architecture companies in Plymouth26
Frequently asked
How many architecture companies are based in Cardiff, United Kingdom?
RevenueBase counts 55 architecture companies listed based in Cardiff, United Kingdom. The directory also includes 361 contacts and 203 email addresses.
Which city in the United Kingdom has the most architecture companies?
London leads the United Kingdom with 3,848 headquartered companies, followed by Manchester (201) and Bristol (165). Cardiff has 55.
Where can I find contacts at architecture companies?
This directory includes 361 contacts and 203 email addresses for architecture companies based in Cardiff, United Kingdom.
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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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