Architecture practices to acquire in Northern Ireland
Updated 9 November 2026
Looking to acquire an architecture practice in Northern Ireland? Firmbase ranks 55 architecture practices using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.
The median firm has 9 staff and has been in business for 14 years. Looking beyond Northern Ireland? Explore the full UK list of architecture practices.
55
Firms
UK 1,741
27%
Every director 55+
UK 22%
33%
Held 75%+ by one person
UK 24%
14
Median years in business
UK 15
9
Median headcount
UK 8
£250k to £500k
Median turnover band
UK £250k to £500k · includes our estimates
The first 25 firms, in Approach Score order
| Rank | Firm | Approach Score | The facts behind the score |
|---|---|---|---|
| 1 | Allan Curran Architects Enniskillen, Co. Fermanagh | Approach Score 84/100 |
More about this firm
Company no. NI049710 · Companies House |
| 2 | Clarman Belfast | Approach Score 83/100 |
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Company no. NI628690 · Companies House |
| 3 | DES Ewing Architects Lisburn, Co. Down | Approach Score 82/100 |
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Company no. NI670391 · Companies House |
| 4 | Paul Monaghan C a Belfast A director sits on 4 or more companies | Approach Score 80/100 |
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Company no. NI630295 · Companies House |
| 5 | Park Design Associates Ballymena, County Antrim | Approach Score 80/100 |
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Company no. NI637445 · Companies House |
| 6 | Ostick & Williams | Approach Score 79/100 | We hold older figures than Companies House
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Company no. NI021724 · Companies House |
| 7 | Keys & Monaghan Architects CO. Fermanagh, Co Fermanagh | Approach Score 79/100 |
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Company no. NI038233 · Companies House |
| 8 | Canavan Associates | Approach Score 78/100 |
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Company no. NI042427 · Companies House |
| 9 | McCreanor Company Architects Craigavon, Co Armagh | Approach Score 78/100 |
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Company no. NI044693 · Companies House |
| 10 | Coogan & Architects Belfast | Approach Score 77/100 |
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Company no. NI036324 · Companies House |
| 11 | ACA Architecture Omagh A director sits on 4 or more companies | Approach Score 74/100 |
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Company no. NI643319 · Companies House |
| 12 | Henry Marshall Brown Architectural Partnership Co Tyrone A director sits on 4 or more companies | Approach Score 74/100 |
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Company no. NI057065 · Companies House |
| 13 | Kevin Cartin Architects Belfast | Approach Score 73/100 |
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Company no. NI059073 · Companies House |
| 14 | Mcadam Stewart Architects Banbridge, Co Down | Approach Score 72/100 | We hold older figures than Companies House
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Company no. NI047821 · Companies House |
| 15 | Montgomery Irwin Architects Coleraine, County Londonderry | Approach Score 71/100 |
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Company no. NI068480 · Companies House |
| 16 | Mclean & Forte Architects Belfast | Approach Score 70/100 |
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Company no. NI673458 · Companies House |
| 17 | D-on Architects Belfast, CO. Antrim | Approach Score 69/100 | We hold older figures than Companies House
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Company no. NI049889 · Companies House |
| 18 | Reddy Architecture Belfast | Approach Score 67/100 |
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Company no. NI047091 · Companies House |
| 19 | Visdes NI Belfast | Approach Score 67/100 |
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Company no. NI620986 · Companies House |
| 20 | Rapport Architects Belfast | Approach Score 66/100 |
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Company no. NI605652 · Companies House |
| 21 | RPP Architects Belfast, Antrim | Approach Score 66/100 |
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Company no. NI017333 · Companies House |
| 22 | RMI Architects Belfast | Approach Score 66/100 |
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Company no. NI686508 · Companies House |
| 23 | Alastair Coey Architects Belfast, Co. Antrim | Approach Score 64/100 | We hold older figures than Companies House
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Company no. NI602358 · Companies House |
| 24 | RE Quinn Architects | Approach Score 64/100 |
More about this firm
Company no. NI068375 · Companies House |
| 25 | Cheah Rothe Design Studio Bangor, Down | Approach Score 63/100 |
More about this firm
Company no. NI640867 · Companies House |
30 more firms are in the list, in Approach Score order.
You're seeing the first 25. Buy all 55 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.
Buy the list of all 55 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.
What's in the file
One row per firm, in Approach Score order, as Excel + CSV.
It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.
Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.
How this list is filtered
- 5 or more staff, from filed headcount or our estimate where none is filed.
- Registered office in Northern Ireland.
How this list is built
The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.
Firms with higher scores appear first in each list.
Use the ranking to order research, then check each business directly.
What it does not mean
No firm here is for sale, and the score says nothing about any owner's plans.
At least 95% of the firms where we hold directors had them checked in or after November 2026.
What we do not cover
Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. Check individuals on the Architects Registration Board's Architects Register. ARB registers architects across the UK; it does not register practices.
Why age bands but no people's names
Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.
Is this your firm?
You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.
To have personal data erased, see our privacy policy.
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The standard Firmbase list
Buy the list of all 55 firms, with director names, ages and shareholders
Each row comes with the facts behind its score, financials with dates and contact details.