Company lists · Data refreshed September 2026

Top 25 Architectural firms for multifamily based in Ireland

Name: Architectural firms for multifamily based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 121 companies tracked

RevenueBase identified 121 architectural firms for multifamily headquartered in Ireland as of September 2026 and tracks 1,153 professional contacts across them, including 581 with verified work emails. Dublin is the largest hub.

This list covers architectural firms for multifamily headquartered in Ireland, 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 30, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

121Companies

1,153Contacts tracked

581Verified emails

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The 25 largest architectural firms for multifamily based in Ireland

Ranked by team size

Top 25 of 121 architectural firms for multifamily based in Ireland, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to architectural firms for multifamily: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Castlethorn	Indirect evidence	Dundrum, IrelandHQ checked Sep 30, 2026	51-200	49 contacts →
	Indirect evidence “Founded in 1991, Castlethorn Construction is one of Ireland’s most successful residential and commercial developers.” Source: RevenueBase Database · checked Sep 30, 2026
2	TOT Architects	Partial evidence	Dublin 2, IrelandHQ checked Sep 30, 2026	11-50	40 contacts →
	Partial evidence “TOT Architects is one of the most dynamic architectural practices in the country.” Source: RevenueBase Database · checked Sep 30, 2026
3	JFA	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	32 contacts →
	Partial evidence “JFA is a leading commercial architectural practice with our main office base in Clonskeagh, Dublin 14 and a satellite office in Maynooth, Co Kildare.” Source: RevenueBase Database · checked Sep 30, 2026
4	C W O'brien Architects	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	32 contacts →
	Partial evidence “Residential \| Data Centres \| Hospitality At C+W O'Brien Architects, we combine architectural innovation with a commitment to creating places that enhance communities.” Source: RevenueBase Database · checked Sep 30, 2026
5	CDP Architecture	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	31 contacts →
	Partial evidence “We provide professional architectural services and support to our clients.” Source: RevenueBase Database · checked Sep 30, 2026
6	Mcorm Architecture And Urban Design	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	30 contacts →
	Partial evidence “MCORM is a forward-thinking architectural design studio, based in Dublin City centre, with a satellite office in Tullamore Established in 1986, we have established our practice as…” Source: RevenueBase Database · checked Sep 30, 2026
7	VHA	Indirect evidence	Sligo, IrelandHQ checked Sep 30, 2026	11-50	25 contacts →
	Indirect evidence “Since the founding of VHA Architects in 1986 by Vincent Hannon, we have been privileged to form long-term relationships with many of the nation’s most distinguished developers…” Source: RevenueBase Database · checked Sep 30, 2026
8	Mcgrath Group	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	23 contacts →
	Indirect evidence “With 40+ years of experience and thousands of homes delivered, we create vibrant, sustainable communities.” Source: RevenueBase Database · checked Sep 30, 2026
9	Quantum Group IE	Indirect evidence	Kildare, IrelandHQ checked Sep 30, 2026	51-200	22 contacts →
	Indirect evidence “We are defined by our heritage to take a partner and people-centred approach to invest, design and develop quality real-estate solutions to empower diverse communities.” Source: RevenueBase Database · checked Sep 30, 2026
10	Horan Rainsford Architects	Indirect evidence	Co. Dublin, IrelandHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “Horan Rainsford Architects was formed in April 2008 by Tony Horan and Brian Rainsford, following the successful collaboration on a number of commercial and housing developments.” Source: RevenueBase Database · checked Sep 30, 2026
11	Michael Fitzpatrick Architects	Indirect evidence	Cavan, IrelandHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “Michael Fitzpatrick Architects Ltd are RIAI registered Architects with the Royal Institute of the Architects of Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
12	Healy Butler Moffat Architects	Partial evidence	Douglas, IrelandHQ checked Sep 30, 2026	11-50	16 contacts →
	Partial evidence “Butler Moffat Architects Butler Moffat Architects is a Cork-based architectural practice, founded in 2005, with a reputation for design excellence.” Source: RevenueBase Database · checked Sep 30, 2026
13	Montane Developments	Indirect evidence	Maynooth, IrelandHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “Montane Developments is an experienced leader in residential and commercial property, with a firm commitment to continually raising the standard in both quality and innovation.” Source: RevenueBase Database · checked Sep 30, 2026
14	Darmody Architecture	Partial evidence	Dublin 2, IrelandHQ checked Sep 30, 2026	11-50	14 contacts →
	Partial evidence “Darmody Architecture is an architectural practice with a passion for detail and a wide spectrum of experience, based in Dublin, Ireland.” Source: RevenueBase Database · checked Sep 30, 2026
15	Rhatigan Architects	Indirect evidence	Sligo, IrelandHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “Rhatigan Architects is an award winning design-driven practice, specialising in workspace, residential, healthcare and education buildings.” Source: RevenueBase Database · checked Sep 30, 2026
16	Jfoc Architects	Indirect evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “JFOC Architects specialise in housing, from design research, economic and regulatory research through to delivery.” Source: RevenueBase Database · checked Sep 30, 2026
17	Wilson Hill Architects	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “Dublin-based architectural studio, established in 2008 which seeks tailored solutions to each client’s specific requirements, using practical design solutions that will last the…” Source: RevenueBase Database · checked Sep 30, 2026
18	Kenny Lyons Associates Architects	Indirect evidence	Tullamore, IrelandHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “Kenny Lyons & Associates Architects are an award winning firm based in the Midlands of Ireland, and has established itself as one of the leading practices in its field servicing…” Source: RevenueBase Database · checked Sep 30, 2026
19	Smith Kennedy Architects	Partial evidence	Dublin, IrelandHQ checked Sep 30, 2026	11-50	10 contacts →
	Partial evidence “Our firm is is entirely dedicated to the provision of Architectural services with emphasis on high quality contemporary design and professional service.” Source: RevenueBase Database · checked Sep 30, 2026
20	MDP	Indirect evidence	Waterford, IrelandHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Design & innovation thinking is at the heart of how we work.” Source: RevenueBase Database · checked Sep 30, 2026
21	JDA Architects	Partial evidence	Dun Laoghaire, IrelandHQ checked Sep 30, 2026	1-10	9 contacts →
	Partial evidence “JDA Architects is a highly commended award-winning firm of architects dedicated to architectural excellence, professionalism, and client service.” Source: RevenueBase Database · checked Sep 30, 2026
22	EML Architects	Indirect evidence	Limerick, IrelandHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Our philosophy places emphasis on quality of service, a high design awareness and cost control.” Source: RevenueBase Database · checked Sep 30, 2026
23	Beldare Homes	Indirect evidence	Sligo, IrelandHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “At Beldare Homes, we are passionate about creating exceptional spaces that enrich lives and empower communities.” Source: RevenueBase Database · checked Sep 30, 2026
24	Stephen Carr Architects	Partial evidence	Wexford, IrelandHQ checked Sep 30, 2026	1-10	9 contacts →
	Partial evidence “Stephen Carr Architects (formerly Design Unlimited) was established in Wexford in 1989 and is now one of the best known and most progressive architectural firms in the south east.” Source: RevenueBase Database · checked Sep 30, 2026
25	Ensuir Architects Engineers	Indirect evidence	Clonmel, IrelandHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Ensuir is a family run and privately owned business, established 15 years ago by Kevin Dennehy and Niall P Dennehy.” Source: RevenueBase Database · checked Sep 30, 2026

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 for multifamily. 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 for multifamily.
Partial evidence: Its own public description names part of architectural firms for multifamily, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural firms for multifamily. 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 121 architectural firms for multifamily based in Ireland

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Architectural firms for multifamily based in Ireland at a glance

As of Sep 30, 2026

50.4%Verified-email coverage

9.5Average contacts per company

1-10Median size (employees)

19.8%Largest-city concentration · Dublin

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 121 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 for multifamily, 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 Ireland whose own description of what they do matches “architectural firms for multifamily”. 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 for multifamily), 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 for multifamily, and records with no verified work email. Companies headquartered outside Ireland 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, 581 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 30, 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.

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 for multifamily, 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 for multifamily are there based in Ireland?

RevenueBase identified 121 architectural firms for multifamily headquartered in Ireland 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?

Castlethorn, headquartered in Dundrum, tops this list with the largest team on record.

Which city has the most architectural firms for multifamily?

Dublin leads with 24 headquartered companies, followed by Cork (3) and Ireland (3).

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 581 verified decision-maker contacts tracked across these 121 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 30, 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.