What Collen Construction does

Collen Construction Ltd is a privately-held, fifth-generation family-owned engineering-led construction company headquartered in Dublin, Ireland, founded in 1810. The firm employs more than 470 people and delivers large-scale, mission-critical construction projects across six European countries — Ireland, the United Kingdom, Denmark, Sweden, Finland, and Germany — via offices in Dublin, Slough, Copenhagen, Gävle, and Västerås.

The company's portfolio is organised around six core verticals: Data Centres & Technology (over 600 MW of hyperscale and colocation capacity delivered since 2010, with a Data Centre Centre of Excellence in Dublin); Energy & Decarbonisation (turnkey power stations, battery storage, substations, including Ireland's first 110MW industrial-scale dual-fuel backup power station at Grange Castle); Public Works, Healthcare and Education; Life Sciences (over 20 years' experience supporting pharmaceutical and biotech clients); Commercial Fit-Out and Office Developments; and High-Density Residential and Hospitality. Underlying technical capabilities include end-to-end civil, structural, architectural, and MEP delivery, off-site manufacturing and modularisation (bathroom pods, MEP modules, modular façades, E-houses), and a digital construction stack built on Synchro 4D planning, Leica/Trimble reality capture, HoloLens 2 mixed reality, and CDE platforms (Procore, Autodesk Construction Cloud, Viewpoint 4Projects, Dalux).

Collen operates a project-based, professionally-services revenue model with direct enterprise and government tendering, delivering under Design & Build, EPC, Build-Only, and specialist Fit-Out contract forms. Pricing is project-specific and not publicly disclosed. The go-to-market is direct enterprise field sales supported by a dedicated business development function (Head of Business Development), regional MDs across Europe, and thought-leadership channels including the company website, LinkedIn, industry events, and an Engineers Ireland CPD-accredited graduate programme. The firm is certified to six ISO standards (9001, 14001, 50001, 19650, 45001, 27001), holds Safe-T-Cert 'A', and has delivered BREEAM Very Good and LEED Gold certified assets, supporting qualification for hyperscale and public-sector tenders.

Name

Collen Construction

Legal name

Collen Construction Ltd

Website

https://collen.com

Company type

Private

Founded year

1810

Operating status

Operating

Headcount range

251–500 employees

Short description

Collen Construction Ltd is a fifth-generation, family-owned Irish engineering-led main contractor delivering mission-critical data centres, energy infrastructure, life sciences, public works, commercial fit-outs and residential projects across Ireland, the UK and Continental Europe.

Ownership category

akta.pro rank

Product category

Engineering & Construction Services

NAICS

Nonresidential Building Construction (2362), Industrial Building Construction (23621), New Multifamily Housing Construction (except For-Sale Builders) (236116), Power and Communication Line and Related Structures Construction (237130)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ), Office & Corporate Building Construction (IMAFACAA)

Keywords

• Construction project delivery
• Data centre construction
• Engineering construction services
• Modular construction services
• Commercial building services

Headquarters

HQ city

Dublin

HQ country

Ireland

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Construction Project Delivery: Collen generates revenue through direct construction project delivery across multiple sectors including data centres, energy infrastructure, healthcare, life sciences, commercial, and residential. Projects are delivered under various contract forms including Design and Build, EPC, and fit-out contracts. Revenue is project-based and earned through successful delivery of construction projects for clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Collen Construction delivers end-to-end engineering-led construction services across six core sectors: data centres, energy and decarbonisation infrastructure, public works/healthcare/education, life sciences, commercial fit-out, and high-density residential/hospitality. Projects are delivered under design and build, EPC, build-only, and specialist fit-out contracts covering civil, structural, architectural, and MEP disciplines. The company supplements traditional construction with off-site manufacturing/modularisation and a digital construction stack (4D planning, reality capture, VR/AR).

Product overview

Collen Construction is an engineering-led construction company offering a portfolio of construction services across six core sectors: Data Centres & Technology (delivering over 600 MW of hyperscale capacity since 2010), Energy & Decarbonisation (power stations, renewables, grid infrastructure), Public Works/Healthcare/Education, Life Sciences (pharmaceutical/biotech facilities), Commercial Fit-Out & Office Developments, and High-Density Residential & Hospitality. The company differentiates through specialized sub-products including Off Site Manufacturing (OSM) for prefabrication and modular construction, and Digital Construction services featuring 4D planning, reality capture, and VR/AR technologies. Their offerings span design-build, build-only, and specialist fit-out delivery models across Ireland, UK, Denmark, Sweden, Finland, and Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• Data Centres & Technology Construction End-to-end delivery of hyperscale and co-location data centre projects covering civil, structural, architectural, and MEP disciplines, supported by a Data Centre Centre of Excellence in Dublin.
• Energy & Decarbonisation Construction Construction of renewable generation, battery storage, photovoltaic installations, electricity network infrastructure, substations, and turnkey power stations, including operation and maintenance services for energy generation facilities.
• Public Works, Healthcare & Education Construction Construction of hospitals, schools, civic buildings, and other public infrastructure for government and healthcare clients, with expertise in operating on live campuses and sensitive environments.
• Life Sciences Construction Construction and fit-out of cleanrooms, GMP manufacturing spaces, and laboratories for pharmaceutical, medical device, and biotechnology clients under strict regulatory quality, safety, and environmental standards.
• Commercial Fit-Out & Office Developments High-specification, fast-track fit-outs and office developments delivered through Design & Build, Build-Only, or specialist Fit-Out models, including decarbonisation of older building stock.
• High-Density Residential & Hospitality Construction Construction of multi-storey apartments, student housing, luxury hotels, and other large-scale residential and hospitality schemes with an emphasis on design excellence and sustainability.
• Off-Site Manufacturing (OSM) Modularisation, prefabrication, and off-site manufacturing services producing bathroom pods, containerised electrical plantrooms, E-houses, MEP modules, modular façades, and prefabricated sprinkler systems for use across Collen's projects.
• Graduate Development Programme 18-month CPD Approved Graduate Development Programme accredited by Engineers Ireland, providing career path framework, mentoring, international project opportunities, and LMS access for early-career construction professionals.

Quantifiable outcome

• Over 600 MW of hyperscale and colocation capacity delivered since 2010
• +2 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

AI capability4 records

Feature5 records

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• John Sisk & Son (Sisk Group): Ireland-headquartered international construction company offering design-build and general contracting across data centres, life sciences, healthcare and commercial sectors. Closest direct peer with overlapping geographic footprint, sector mix, and similar profile of mission-critical project delivery in Ireland and Europe.
• Mace Group: UK-based international construction and consultancy group with a strong track record delivering hyperscale data centres and complex mission-critical projects. Comparable to Collen in serving hyperscaler clients and operating across multiple European geographies.
• JJ Rhatigan & Company: Irish general contractor with a strong data centre and commercial/residential portfolio. Directly competes with Collen for Irish hyperscale and public works tenders and shares the Dublin-headquartered competitive set.
• Flynn Management & Contractors: Ireland-based contractor focused on data centres, pharmaceutical/life sciences, and commercial fit-out. Comparable in size, mission-critical specialisation, and Irish/European delivery footprint to Collen.
• McNamara Construction: Irish contractor with significant data centre delivery experience and a Dublin-based footprint. Competes head-to-head with Collen on hyperscale data centre tenders in Ireland and across Europe.
• Bennett Construction: Ireland-headquartered contractor active in commercial, residential, hospitality, and data centre construction. Comparable mid-sized Irish general contractor with overlapping service offerings and customer base to Collen.

Broad incumbents

• Skanska: Major Sweden-based construction and development group with extensive residential, commercial, and civil operations across Europe and the US. Overlaps with Collen in Nordic commercial/civil construction but is much larger and broader in portfolio than Collen's specialised mission-critical focus.
• NCC (NCC AB): One of the largest Nordic construction and property development companies, active across Sweden, Denmark, Finland and Norway. Comparable to Collen in Nordic geographies and overlapping in commercial/infrastructure work, but with significantly broader scope and scale.
• Wates Group: UK-based family-owned construction and property services group covering commercial, education, healthcare and residential. Comparable to Collen in scale and diversification, though Wates is less specialised in data centre/mission-critical work.
• Balfour Beatty: Major UK-headquartered international infrastructure group with construction capabilities spanning buildings, civils, and energy. Overlaps with Collen on nonresidential and infrastructure delivery across the UK and Europe, but operates at a much larger, broader scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/collen-construction
• Instagraminstagram.com/collenconstruction
• Xx.com/CollenConstruct

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Collen Construction