Founding Members

C+W O’Brien Architects – Architecture that transforms cities and builds communities


C+W O‘ Brien Architects practice is built on delivering design-driven architectural solutions with a commercial edge that ensures they provide value by design. The combination of their highly professional service with a straightforward methodology engages clients throughout the design process, delivering smart, sleek and sustainable projects.

The team at C+W O’Brien pride themselves on an honest, transparent, inclusive and accountable culture, placing their clients at the heart of the design team, encouraging collaboration to develop innovative solutions leading to improved building performance through efficient work practices.

The structure encourages innovative thinking, knowledge sharing, and progression, for those who are passionate about design, technology and learning providing an environment that encourages the team to excel in all aspects of their lives.

, part of Etex Group: The leading Modern Methods of Construction (MMC) Engineering Consultants

The international, multi-disciplinary team at Evolusion Innovation are the leading experts in 2D panellised and 3D modular/volumetric offsite construction and modern methods of construction (MMC) with offices in Cork, Dublin and Birmingham (UK). 

Evolusion Innovation pioneers innovative and progressive engineering, using proven expertise and experience to provide the right solutions for structural engineering design, building physics analysis, sustainability and energy assessment, and quality engineering problems. 

In addition to co-founding MMC Ireland, the expert team has been instrumental in the development and third-party certification of numerous construction materials and components, and of complex and cutting-edge low, medium and high-rise building systems.

Horizon Offsite Ltd: ‘Providers of world class, structural light gauge steel building systems’

Based in Cahir, County Tipperary, Horizon Offsite Ltd is one of Europe’s leading players in #offsite construction and modern methods of construction (#MMC), providing a fully accredited structural light gauge steel building system. 

Light gauge steel products and systems are at the cutting edge of modern methods of manufacturing and construction. Used as part of the structural element in the construction of walls, floors, ceilings and roofs, the versatility of #LGS gives architects and structural engineers the opportunity to create their most creative and enterprising building designs.

With a combined 80 years’ experience in the industry, Ger Fahey and the expert team at Horizon Offsite specialise in providing the most cost, energy and time-efficient solutions for residential, commercial, industrial, education and healthcare projects.

John Paul Construction:  “GO FURTHER | BUILD SMARTER”


As one of Ireland’s leading companies embracing modern methods of construction, the team at John Paul Construction are proudly building bespoke landmark developments and Ireland’s critical infrastructure, offering a world class turnkey service using the latest technology and dynamic construction techniques.

Hines Ireland:  A leader in investment and development since 1957.


Hines is a privately owned global real estate investment, development and management firm, with 198 developments currently underway around the world. With extensive experience in investments across the risk spectrum and all property types, and a foundational commitment to ESG, Hines is one of the largest and most respected real estate organisations in the world



The team at Glenveagh champion fresh thinking, teamwork and trust to challenge the status quo across the industry:
“We believe that building homes and communities is a worthy cause and will positively impact Irish society. We want to forge a new path, relentlessly innovating every stage of the homebuilding process.”

Xtratherm, part of Unilin Group: ‘More than insulation’


Innovating for Change –  UNILIN has a long established manufacturing heritage and continues to lead the industry through the development of technological advances.
Investment in R&D is delivering exciting developments in product properties, performance and circularity backed by continually improving Environmental Product Declarations (EPDs) that meet highest industry targets for construction towards 2030.

The ECO360 Range sees pioneering environmental improvements in the manufacturing, delivery and use of PIR insulation. A bio-enhanced, halogen-free formulation, the range has a more than 50% reduction in packaging, with all plastic wrap replaced by biodegradable film.

The  UNILIN team works with designers and contractors to reduce material usage on site in order to achieve ultimate thermal performance and minimise the resultant embodied carbon.

Saint-Gobain Ireland (Construction Products): ‘World Leader in Habitat – Creating and delivering innovative and high-performance solutions to enhance our habitat and our daily lives.’


Saint-Gobain provides solutions that make buildings more efficient in terms of their energy consumption, and which help contribute to saving the planet. Most of its solutions (especially those using glass, mineral wool insulation, plasterboards, and facade and floor covering mortars) are already helping and will help even more in the future to improve the energy efficiency of buildings.

Platt Reilly: ‘The Partition and Ceiling Specialists’.


Established in 2001, Platt & Reilly is one of Ireland and the UK’s Ireland’s largest and most experienced partition and ceiling contractors, delivering projects across residential, commercial, hospitality, healthcare and other public buildings. 

The company’s reputation is built on delivering some of the most prestigious projects in Ireland and the UK, to the highest standards, on time, and on budget. Platt & Reilly have recently been awarded the AIS innovation award for the implementation of the first true paperless site.

CPAC Modular: ‘Ireland’s Leading Modular Building Company’


Cpac Modular, experts in public and commercial modular buildings, provides a full design, planning, offsite construction, onsite assembly and fit-out service of Modular Building Solutions in Ireland.

The team at CPAC Modular are focused on delivering temporary, permanent and hybrid modular buildings with a lifespan of 5 to 65+ years for the commercial, education, healthcare and Pharmaceutical industries.

Steelframe Design & Build: ‘Leading the way in innovative building technology’


The team at Steelframe Design & Build™are innovators in the design and manufacture of lightweight steel frame structures.

Leading the way in construction technology, Steelframe has utilised advanced design and engineering software to design a method of construction that delivers results in a more cost-effective and time-efficient manner. The result is a consistently superior product that can be produced quickly in large volumes offsite, thus solving many of the issues facing the construction industry today.

PETRUF Consulting Structural Engineers: Innovative Design – Intelligent Detail


Petruf Consulting Structural Engineers is one of Ireland‘s most progressive and innovative engineering consultants. Frank Petruf and the team are experts in precast concrete design, from project conception right through to completion.
Petruf Consulting Structural Engineers approach the structural aspect of a project in an innovative way. Efficient design to optimise elements size and reinforcement produces a more environmentally-friendly design by reducing excessive carbon and project costs, while reducing the project timeframes. All projects are completed usings innovative structural model-based designs to support architectural creativity.

O’Dwyer Steel: One of Ireland & the UK’s leading suppliers of CE certified structural steel and cladding


With over 60 years experience in steel fabrication, the team at O’Dwyer Steel offer a comprehensive service from initial design right through to complete construction.

Based in Dundrum, County Tipperary, O’Dwyer Steel serves the agricultural, industrial and commercial sectors in Ireland, the UK and France. The company’s current production capacity is 125 tonnes of structural steel per week and all materials are sourced from long established, quality suppliers, ensuring lengthy warranties.

Clancy: Built on Partnership & 70 Years’ Experience


“Construction must reflect the practical and aesthetic in business but above all…Good construction must primarily serve people.” John O Shaughnessy MBA LL.B (Hons), Managing Director

The team at Clancy are committed to providing comprehensive design and construction solutions to suit the service, quality, safety and budgetary needs and expectations of clients. This is achieved through artful listening, planning, innovation, collaboration, and careful execution of all projects to the highest standards.

Rothoblaas srl: Solutions for Building Technology


Rothoblaas is an Italian multinational serving Ireland’s MMC sector through developing and providing high technology solutions for all those involved in timber construction.

Rothoblaas is continually innovating new products and services for timber building professionals: carpenters, engineers, architects, and installers of fall arrest systems. Additionally, the product brand HOLZ TECHNIC caters to all the needs of building material retailers.

 Framespace Solutions:  Specialists in the Design and Manufacture of Light Gauge Steel Building Systems


‘Providing a sustainable alternative to traditional forms of construction’

Specialists in the delivery of light gauge steel (#LGS) residential structures throughout Ireland and the UK, the team at Framespace Solutions utilise a combination of structural panels (2D) and full form volumetric modular (3D) solutions to provide a more sustainable alternative to traditional forms of construction.

Mac Zero Modular Buildings Ireland Ltd: Sustainable Modular Buildings – Nothing Less


Mac Zero Modular buildings is a dynamic modular building manufacturer specialising in delivering sustainable, healthy buildings within a modular design framework.

Led by Conor McAvoy and Orla Corr OBE the team has a long history in modular construction with both siblings previously Directors in their family business, McAvoy Group.

Huge advocates of modern methods of construction, Conor and Órla established Mac Zero Modular Buildings to create a new breed of modular construction company that is delivering nZEB compliant buildings for organisations across Ireland.

Vision-Built:  Building the Future. Offsite.


The team at Vision-Built specialise in the design, manufacture and installation of cost effective, innovative light gauge steel frame building solutions for a range of sectors, including residential, hospitality, healthcare and education.

The Vision Built light gauge structure, with floor to floor height pre-insulated external and internal load-bearing panels, is factory assembled to ISO 9001 standards and carries full accreditations and warranties.

With over 30 years’ experience, Vision Built operates in both Ireland and the UK, with specialist teams of trained installation contractors, approved and accredited to the highest health and safety standards, for installation on all types of sites.

Visor MMC: Innovative Panelised Construction 


From a base in Waterford, in Ireland’s south east, Visor MMC is led by Conor Walsh, who has almost two decades of experience working in the construction industry. 

Visor MMC’s unique patented process delivers monolithic, factory-built, precast insulated wall panels. This approach can currently supply the wall structure of buildings, from single-storey up to five storeys in height. 

Visor MMC offers the most thermally efficient, thermally massive and thermal bridge free walling solution on the market today. This is achieved by the patented construction method, design-order process and assembly within a controlled factory environment. This innovative approach allows the Visor MMC team to focus on quality, with thermal excellence and labour efficiencies at its core. Contact the Visor MMC team at to learn more.

John Sisk & Son Ltd: Delivering excellence for 160 years


John Sisk & Son is an innovative, international construction and engineering company with an ambition to make energy efficiency part of the business culture within Sisk and across the built environment.

The sustainable development approach taken by the Sisk team is to maximise sustainable construction and to minimise the environmental impact of a project on society. This approach is rooted in the recognition that active engagement in social progress, environmental protection, and economic balance is necessary for long term development.

Offsite fabrication will become an increasingly important element of Sisk contracting delivery with benefits flowing from a vertical integration of Vision-Built into their supply chain.

LMC Modular, part of LMC Group Ltd: Complete Offsite Solutions


Fully accredited to ISO and BOPAS standards, LMC Modular has the capability to deliver complete offsite solutions from a 160,000sq.ft. manufacturing facility in County Tipperary.

The company hosts a full in-house team of professional designers, product experts and project managers, along with experienced manufacturing and construction engineers to ensure all aspects from design, through to planning, production and delivery run smoothly. Also, in-house fabrication workshops, CNC capabilities and Howick Light Gauge Steel frame forming machine mean that the LMC Modular team can provide a variety of frame constructions ranging from traditional steel frames to light gauge steel alternatives.

LMC products are mechanically and electrically project certified, ready to be slotted into position and connected to all site services in the most energy and cost-efficient manner.

Procon Modular: Modern Methods of Construction, Manufactured & Delivered Nationwide


Manufactured in Ireland, the Procon Modular team specialise in the offsite construction of modular buildings, the refurbishment of existing premises, and a range of other services, all with the goal of creating working environments of the highest quality. Procon Modular buildings are designed with all external and internal finishes for a high aesthetic and low maintenance building, which will last the test of time.

Procon Modular have supplied units for a wide variety of uses including classrooms, offices, welfare facilities, living accommodation, and emergency health care units

Arc Engineering Ltd – Specialists in the design, fabrication and installation of architectural metalwork


Arc Engineering is one of Ireland’s leading engineering design and fabrication providers. NSAI certified, the team benefits from extensive experience across the construction industry. Quality control systems ensure projects consistently meet the highest standards and have an excellent track record in customer service.
Arc Engineering.

The team at Arc Engineering provide a wide range of services including design of engineering solutions, contract manufacturing and fabrication of architectural metalwork including a specialist offsite manufactured balcony – Perch SwiftFit Balconies.

Actavo Modular: Flexible, sustainable, high-quality, temporary or permanent modular buildings


As Ireland’s original provider of modular buildings, Actavo has built a reputation on expertise, product quality and consistent project delivery.

With more than 40 years’ experience, Actavo Modular offers deep industry knowledge and unrivalled technical expertise in offsite modular construction. The team at Actavo Modular specialise in the design, construction, installation, and maintenance of high-quality modular buildings for multiple sectors, as well as the hire and sale of site accommodation and other prefabricated buildings.

Castle Modular: Innovative offsite
construction solutions


Castle Modular provides high quality bathroom pods and volumetric modular buildings for the hospitality, residential and healthcare sectors across Europe.


Based in Ireland, the team at Castle Modular have over 20 years’ experience in delivering modern construction methods. Their bathroom pods are designed and manufactured by experienced professionals and skilled personnel in a safe, sustainable and quality controlled factory setting, to clients’ requirements and relevant building codes.

HLM Architects: ‘Thoughtful design to make better places for people’


HLM Architects has built a reputation for design excellence and expertise across key sectors with a focus on solving clients’ challenges while being mindful of the impact that design can have on people, communities and society.

‘Places of education that inspire, healthcare environments that nurture, homes that are part of thriving communities, and infrastructure that is sustainable in every sense’ – It is this sense of social purpose that drives the HLM team and is at the heart of everything the practice does.

The team at HLM Architects strives to create buildings that respond to their context and climate, as well as the client’s budget, with a focus on exploiting opportunities to make memorable places and ensure that the resultant design solutions can evolve in a sustainable way that supports health and wellbeing.

HLM entirely embraces offsite manufacturing, believing this to be a safer, faster, greener, leaner, and better-quality way to make buildings: “Our experience across all of our seven sectors is informing our own ‘Think: Offsite’ initiative. This is our commitment to consider how each project could be delivered using offsite manufacture as our primary delivery approach…”

ABM Design and Build Ltd: Buildings of Integrity


Established in 2011, ABM Design and Build provides an integrated turn-key design, construction and project management service to government agencies and private developers. Projects include a large portfolio of fast-track system build schools for the Department of Education & Skills, rapid build housing for Dublin City Council and Wicklow County Council, several nursing care units (50 and 100 bed) for the HSE across Ireland, luxury housing and apartment complexes, hotels and more recently sports stadiums.

The team at ABM work with all stakeholders to ensure that projects are completed within strict designated timeframes to meet the required design specifications within budget, ultimately to produce ‘Buildings of Integrity’.

ABM specialist industry sectors include residential, education, medical, commercial, industrial, retail, hospitality, sports and recreation.

: Innovating energy efficient new homes at scale

For thousands of years, cultures all over the world have created vertical stone structures known as ‘cairns’ to help lead the way for anyone travelling through uncharted land. As Ireland’s leading homebuilder, the name Cairn represents the company’s vision to be a guiding force in home building across Ireland — showing the right way to develop homes, neighbourhoods and communities where people love to live.

The team at Cairn Homes plc has been leading the way in the Irish housing market since 2015. In that time the business has scaled and today they are active on 20 sites, constantly innovating to build energy efficient new homes with the lowest carbon footprint.

Cairn Homes plc’s focus on placemaking ensures they create vibrant places and healthy communities by focussing on the quality of the infrastructure, shared spaces and an environmentally responsible approach to design.

NorDan Vinduer in Ireland: One of Europe’s leading manufacturers of windows and doors

NorDan Vinduer serves both the commercial and residential markets, from self-build to large scale developments.

With eight factories and products in several
markets, the team at NorDan Vinduer in Ireland are leaders in the development, marketing, production and delivery of eco-friendly and secure windows and doors. The company’s newly developed entrance and balcony doors include double, full size galvanised steel plates within the door leaf to provide exceptional stability to the door and extra security.

CarlowBuild: Innovation Manufactured


CarlowBuild manufactures a hybrid modular building system for the delivery of large scale residential, commercial and departmental type buildings. This highly innovative building system is completely unique to CarlowBuild and is a world first. The team at Carlow Build has developed an NSAI Irish Agrement Board approved building system that meets the Irish Building Regulations 1997 to 2019 and the UK Building Regulations 2010.


CarlowBuild is part of the Burren Precast Group and a sister company of Carlow Concrete, and as such has the resources and infrastructure to meet the high demands of customers in relation to quality of service and product. The organisation benefits from a highly experienced technical team and has the technical expertise, the flexibility in production methods and the resources to interpret, design, manufacture and assemble to the highest standards, bringing modern methods of construction through the benefits of offsite construction, building information modelling (BIM) and highly experienced installation teams.

Errigal Contracts Ltd: Tackling Complex Construction Challenges 


Errigal is a market leading construction company, with specialist expertise in partition systems, external façade, interior fitout, ceilings and bespoke solutions. The company has a track record in these specialist areas and is internationally renowned and, as a result, they are able to provide an exceptional service on construction projects of all sizes. With dedicated manufacturing facilities at our headquarters in Monaghan and in Antrim, we offer offsite solutions to support our on-site activities across Ireland, the UK and Europe.


“At Errigal we do things the Errigal way. We are focused on the experience we give our clients, our suppliers and our people. Delivering quality and completing projects within timelines is a given. The Errigal way is about making the experience of working with Errigal enjoyable and rewarding for all involved. We are committed to our people, our clients and our industry and will continue to invest into the future to ensure that we all grow and prosper through a culture of care, support and encouragement.”

Peppard Investments Limited: Investing in the future 


Peppard Investments Limited is a property investment company with over 40 years’ experience in the development sector, specialising mainly in nursing homes and social housing. They have a large commercial and residential rental portfolio, and they develop select private developments in key locations. The team at Peppard Investments have a wealth of experience delivering planned property schemes, from sourcing development land, to urban regeneration and greenfield site development, invested across all primary development categories. 


The company has a track record of innovation and is committed to developing and building through MMC for a sustainable future.

MMC Ireland Members

Established in 1985, Instaspace Modular designs, manufactures and delivers quality modular building solutions to Ireland’s educational, commercial, medical, pharmaceutical, administration and recreational sectors.


The team at Instaspace Modular are leading suppliers of premium turn-key building systems that include all groundworks, lifts, stairs, ramps, railings, carparks, roundabouts and complete internal fit out, with mechanical and electrical installations, interior design, furniture and fittings, if specified. They also offer a full design and consultation service, including all structural, mechanical and electrical design.


The experts at Instaspace Modular are available to liaise with your designated architect or enginee and they can arrange planning permission, fire safety cert and disability access cert (DAC).

Bringing the best construction products to the Irish market


Founded in 1999, with offices in Ireland and England, Greenspan is at the forefront of modern building technology. Using highly innovative and specialist products, the team at Greenspan delivers the most comprehensive range of solutions for the construction industry.


Greenspan supplies a wide range of construction products to both residential and commercial sectors, such as exterior and interior cement board systems, external insulation systems, interior finishing products, poured gypsum floors and one coat renders, etc.


The company’s biggest customers are building merchant groups and large contractors.The company takes a specialist approach to the systems it promotes, from the initial certifications with various construction governing bodies including NSAI, SEAI, BBA, and EOTA. From the initial design stage of projects, Greenspan offers full technical backup to architects and engineers. This expertise follows through to providing project owners with knowledge-based modern building solutions.

MMC Ireland

MMC Ireland is a not-for-profit organisation, registered with the CRO as a company limited by guarantee. The overarching aim of the organisation is to bring together everyone involved in the MMC industry (designers, manufacturers and installers) as a shared voice for promoting policy change and development. The advantages of this include shared lobbying, sector advocacy and improved access to the MMC market – both in Ireland and internationally.

Please contact our membership team, Carol Tallon and Bríd Molloy, for further information at .