Company lists · Data refreshed September 2026

Top 25 Modular construction companies based in Ireland

Name: Modular construction companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 52 companies tracked

This directory lists 52 modular construction companies based in Ireland, with 625 business contacts and 303 email addresses. The single most-represented city among these companies is Limerick, and the directory was updated in September 2026.

Modular construction companies design, manufacture, assemble, or install building modules made off-site for transport and use in permanent or relocatable structures. This list covers companies that provide modular building design, manufacturing, supply, installation, or related construction 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

52Companies

625Contacts tracked

303Verified emails

30Mobile numbers

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The 25 largest modular construction companies based in Ireland

Ranked by team size

Top 25 of 52 modular construction companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to modular construction companies: 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	Vision Built	Partial evidence	Tubbercurry, IrelandHQ checked Sep 6, 2026	51-200	71 contacts →
	Partial evidence “At Vision Built, we specialise in the design, manufacture, and installation of innovative 2D light gauge steel panelised structures, and 3D volumetric modular building solutions…” Source: RevenueBase Database · checked Sep 6, 2026
2	Cpac Modular	Partial evidence	Dunshaughlin, IrelandHQ checked Sep 6, 2026	51-200	51 contacts →
	Partial evidence “Building Futures: At CPAC Modular, we recognise the positive impact our modular buildings have on the built environment.” Source: RevenueBase Database · checked Sep 6, 2026
3	Kingspan Century	Partial evidence	Monaghan, IrelandHQ checked Sep 6, 2026	n/a	44 contacts →
	Partial evidence “Kingspan Century is the leading provider of off-site construction and Engineered Timber Systems, offering a range of highly insulated and air tight structural systems, with the…” Source: RevenueBase Database · checked Sep 6, 2026
4	Procon Modular	Partial evidence	Dublin, IrelandHQ checked Sep 6, 2026	11-50	31 contacts →
	Partial evidence “Manufacturing High Quality Off Site Constructed Modular Buildings.” Source: RevenueBase Database · checked Sep 6, 2026
5	Castle Group Ireland	Strong evidence	Galway, IrelandHQ checked Sep 6, 2026	201-500	29 contacts →
	Strong evidence “The Castle Group is a pioneering Irish fit-out and modular construction company with an international focus.” Source: RevenueBase Database · checked Sep 6, 2026
6	Manley	Indirect evidence	Duleek, IrelandHQ checked Sep 6, 2026	51-200	27 contacts →
	Indirect evidence “Manley is a multi-disciplined building contractor with more than 39 years of experience in the building sector.” Source: RevenueBase Database · checked Sep 6, 2026
7	O'dwyer Steel	Indirect evidence	Na, IrelandHQ checked Sep 6, 2026	51-200	24 contacts →
	Indirect evidence “Overview: O'Dwyer Steel is one of Ireland's and the UK's leading Structural Steel Engineering businesses.” Source: RevenueBase Database · checked Sep 6, 2026
8	Modulacc	Partial evidence	Limerick, IrelandHQ checked Sep 6, 2026	51-200	22 contacts →
	Partial evidence “We specialise in the design, build, and installation of permanent and temporary modular buildings for purchase or hire.” Source: RevenueBase Database · checked Sep 6, 2026
9	Entekra Ireland	Partial evidence	Monaghan, IrelandHQ checked Sep 6, 2026	51-200	15 contacts →
	Partial evidence “Entekra™ is a design, engineering and manufacturing company that provides a fully integrated off-site solution (FIOSS™) for both residential and commercial construction.” Source: RevenueBase Database · checked Sep 6, 2026
10	Extraspace	Indirect evidence	Dublin 22, IrelandHQ checked Sep 6, 2026	51-200	14 contacts →
	Indirect evidence “Extraspace is a leading provider of customised permanant and temporary building solutions.” Source: RevenueBase Database · checked Sep 6, 2026
11	Ecomod	Partial evidence	Dublin, IrelandHQ checked Sep 6, 2026	11-50	14 contacts →
	Partial evidence “Are you looking for a temporary workspace, site accommodation, modular buildings or welfare units?” Source: RevenueBase Database · checked Sep 6, 2026
12	Calnan Group	Partial evidence	Co. Cork, IrelandHQ checked Sep 6, 2026	51-200	11 contacts →
	Partial evidence “Calnan Containers is based in Glanmire, Cork and forms part of the Calnan Group comprising of Calnan Containers, Calnan Engineering and Calnan Modular Buildings.” Source: RevenueBase Database · checked Sep 6, 2026
13	Instaspace Modular LTD	Partial evidence	Duleek, IrelandHQ checked Sep 6, 2026	11-50	11 contacts →
	Partial evidence “Here at Instaspace Modular, we design, manufacture and deliver quality Modular Building Solutions to the Educational, Commercial, Medical, Pharmaceutical, Administration…” Source: RevenueBase Database · checked Sep 6, 2026
14	BRB Homes	Partial evidence	Swinford, IrelandHQ checked Sep 6, 2026	11-50	11 contacts →
	Partial evidence “BRB Homes has had a great start in business as Big Red Barn manufacturing and erecting Modular Event Structures that were to designed to look like an American style barn.” Source: RevenueBase Database · checked Sep 6, 2026
15	Alufactory LTD	Strong evidence	Nass, IrelandHQ checked Sep 6, 2026	51-200	11 contacts →
	Strong evidence “AluFactory Ltd - off site construction partner specialising in design, manufacture and installation of modular facade systems, aluminium glazing systems and metal processing.” Source: RevenueBase Database · checked Sep 6, 2026
16	Mechanical Modular Solutions	Strong evidence	Castlecomer, IrelandHQ checked Sep 6, 2026	11-50	11 contacts →
	Strong evidence “MMS is a newly established company specialising in prefabrication, off-site construction & Modular Solutions.” Source: RevenueBase Database · checked Sep 6, 2026
17	Norspace	Partial evidence	Northern Ireland & Republic Of Ireland, IrelandHQ checked Sep 6, 2026	11-50	9 contacts →
	Partial evidence “Norspace is a leading provider of modular buildings, site accommodation, and welfare facilities with customers across Ireland.” Source: RevenueBase Database · checked Sep 6, 2026
18	Buildwright Modular Concrete Homes	Partial evidence	Rockcorry, IrelandHQ checked Sep 6, 2026	11-50	9 contacts →
	Partial evidence “BuildWright® is the only large-scale, turnkey modular concrete building system available in Ireland.” Source: RevenueBase Database · checked Sep 6, 2026
19	MJH Structural Engineers	Indirect evidence	Dublin, IrelandHQ checked Sep 6, 2026	1-10	9 contacts →
	Indirect evidence “Our team at MJH provide structural engineering design and detailing services to the offsite industry.” Source: RevenueBase Database · checked Sep 6, 2026
20	Greenframe Offsite Building Systems	Partial evidence	Ballinasloe, IrelandHQ checked Sep 6, 2026	11-50	7 contacts →
	Partial evidence “Greenstone Structures t\a GreenFrame Offsite Building Systems is an offsite construction company that designs, manufactures, and installs light gauge steel frame structures for…” Source: RevenueBase Database · checked Sep 6, 2026
21	Roadmaster Building Systems	Partial evidence	Kilkenny, IrelandHQ checked Sep 6, 2026	51-200	7 contacts →
	Partial evidence “Timber Frame Modular Buildings Modular Dwellings, Mobile Homes Building regulation compliant Bespoke manufacturing - all units customizable Sustainable buildings” Source: RevenueBase Database · checked Sep 6, 2026
22	Masterkabin LTD	Partial evidence	Innishannon, IrelandHQ checked Sep 6, 2026	11-50	6 contacts →
	Partial evidence “Founded in 1991, Masterkabin are Munster's leading Provider of Off-Site, Modular & Portable Building Solutions.” Source: RevenueBase Database · checked Sep 6, 2026
23	Fitzmac	Indirect evidence	Limerick, IrelandHQ checked Sep 6, 2026	11-50	6 contacts →
	Indirect evidence “FitzMac deliver building projects across multidisciplinary sectors to the highest architectural and sustainability standards with client satisfaction at the forefront.” Source: RevenueBase Database · checked Sep 6, 2026
24	Arch-I Modular Solutions	Indirect evidence	Stradone, IrelandHQ checked Sep 6, 2026	11-50	4 contacts →
	Indirect evidence “Our unique steel-fabricated designs are built to last, whilst retaining full flexibility, as the uniqueness of our structure is such that units can be transported quickly and…” Source: RevenueBase Database · checked Sep 6, 2026
25	Gleoite Homes LTD	Indirect evidence	Galway, IrelandHQ checked Sep 6, 2026	1-10	4 contacts →
	Indirect evidence “At Gleoite Homes Ltd we provide energy-efficient homes and office units.” Source: RevenueBase Database · checked Sep 6, 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: modular construction 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 modular construction companies.
Partial evidence: Its own public description names part of modular construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name modular construction 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 52 modular construction companies based in Ireland

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Modular construction companies based in Ireland at a glance

As of Sep 6, 2026

48.5%Verified-email coverage

4.8%Mobile-number coverage

12.0Average contacts per company

11-50Median size (employees)

5.8%Largest-city concentration · Limerick

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2770–30

2331–60

061–90

090–180

3180+

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 modular construction 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 Ireland whose own description of what they do matches “modular construction 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 modular construction 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 modular construction companies, 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, 303 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.

Frequently asked

How many modular construction companies are based in Ireland?

The directory includes 52 modular construction companies based in Ireland.

Where are the most modular construction companies located based in Ireland?

Limerick is the single most-represented city among the companies on this list.

How can I find contact details for modular construction companies?

This directory includes 625 business contacts and 303 email addresses for the listed modular construction companies.

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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.