Main contractors in Northern Ireland

168 main contractors across Northern Ireland.

• G Glencloy Builders Ltd Carnlough · Extensions · 1-9 employees

  Glencloy Builders Ltd is your trusted partner for a wide range of construction services in County Antrim, offering high standards of workmanship and c

• G Glenturas Construction Ltd Londonderry · Civil engineering · 10-49 employees

  For over 10 years Glenturas has demonstrated high performance through the delivery of many building and civil engineering projects.

• G Grant Plant And Construction Ltd Magherafelt · Main contractor

  Grant Plant & Construction Ltd offers agricultural, industrial, and residential building solutions in Northern Ireland. Family-run with over 40 years

• H H & J Martin Construction Ltd Belfast · Main contractor · 10-49 employees

  H & J Martin Construction Ltd is a main contractor company based in Belfast, registered at Companies House in 1987.

• H H&J Martin Group Ltd Belfast · Main contractor · 250+ employees

  H&J Martin Group, with over 175 years of heritage, delivers high-quality Fit Out, Facilities Management, Bespoke Joinery, and Fire & Security services

• H Hamilton & Casement Ltd Dungannon · Main contractor · 1-9 employees

  Hamilton & Casement are building contractors and property developers in Northern Ireland, committed to quality, safety, and environmental care. Offeri

• H Harlo Construction Hillsborough · Main contractor · 1-9 employees

  Harlo Construction Ltd, based in Hillsborough, Co. Down, offers custom new builds, extensions, and renovations across Northern Ireland. With over 15 y

• H Henry Brothers Ltd Magherafelt · Main contractor

  Henry Brothers is a leading privately owned multi-disciplinary construction company delivering high-quality, cost-effective, sustainable solutions.

• I Init Build Ltd Lisburn · Main contractor

  Init Build Ltd is a main contractor company based in Lisburn, registered at Companies House in 2008.

• I IrishTrade Federation Belfast · Main contractor

  The Irish Trade Federation is a business directory promoting companies in Ireland. We offer Irish tendering facilities, Business Classifieds and Debt

• J Jdc Building Works Ltd Cookstown · Modular & offsite construction · 10-49 employees

  JDC Building Works Ltd are experts in modular building solutions, offering design, manufacturing, installation, and maintenance services across the UK

• J JM Begley Builders Omagh · Main contractor

  J & M Begley Builders is a family-owned construction company established in 1983, offering a wide range of services including civil engineering, renov

• J John Dynes & Son Ltd Belfast · Main contractor · 1-9 employees

  John Dynes & Son Builders, winner of Master Builder of the Year 2017, covers all aspects from new developments to renovations.

• J Joseph Mcclune & Son Ltd Newcastle · Main contractor

  Building contractors and joinery manufacturers established in 1917, specializing in bespoke houses and listed buildings. Leading manufacturer of slidi

• J Jpm Contracts Ltd Derry · Main contractor · 10-49 employees

  JPM Contracts is an award-winning family-run construction company based in Dungiven, Northern Ireland. Established in 1994, they deliver high-quality

• J Jsw Developments Ltd Newtownards · Main contractor · 1-9 employees

  JSW Developments specialises in bespoke healthcare construction and fit-out, including mental health, special education needs, elderly care, and priva

• K Kap Properties (Ardglass) Ltd Downpatrick · Property developer

  Kap Properties (Ardglass) Ltd is a property developer company based in Downpatrick, registered at Companies House in 2025.

• K Keelryan Developments Ltd Co Down · Main contractor · 1-9 employees

  Keelryan Developments Ltd is an established Main Contractor with extensive experience in delivering high-quality projects across education, healthcare

• K Kelly Brothers Ltd Warrenpoint · Main contractor

  Kelly Brothers have been a key provider of construction services in Northern Ireland for over 57 years, delivering ambitious projects with a client-fo

• K Kelly Building Contracts Ltd Newry · Main contractor · 1-9 employees

  Kelly Building Contracts Ltd is a family-run construction firm in Mayobridge, Co Down, specialising in new build residential and commercial projects,

• K KERCON CONSTRUCTION Londonderry · Main contractor · 1-9 employees

  Kercon Construction is a building and civil engineering main contractor based in Kells, Co. Meath, undertaking projects across Ireland in various sect

• K Keyes Brothers Construction Ltd Omagh · Main contractor · 10-49 employees

  Keyes Bros Construction Ltd is a construction company based in Omagh, Co. Tyrone, Northern Ireland.

• K Killowen Contracts Ltd Newry · Main contractor

  Killowen Contracts Ltd is a leading Building, Civil Engineering and Fit-Out Contractor working throughout Northern Ireland and Ireland for 50 years.

• K Kilrock Construction Ltd Coleraine · Main contractor · 10-49 employees

  Kilrock Construction is a leading building Contractor in the UK & Ireland specialising in Redevelopment, Retail, Office & Industrial Projects

• K Kmg Contracting Ltd Banbridge · Main contractor · 1-9 employees

  KMG Contracting Ltd is a local firm offering building services in Belfast and surrounding areas. Specialising in building & renovations.

• L Lagan Homes (Ardnavalley) Ltd Belfast · Main contractor

  Lagan Homes (Ardnavalley) Ltd is a main contractor company based in Belfast, registered at Companies House in 2014.

• L Lagan Homes (Beverley Garden Village) Ltd Belfast · Main contractor

  Lagan Homes (Beverley Garden Village) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.

• L Lagan Homes (Blackwood) Ltd Belfast · Main contractor

  Lagan Homes (Blackwood) Ltd is a main contractor company based in Belfast, registered at Companies House in 2010.

• L Lagan Homes (Charlestown Hall) Ltd Belfast · Main contractor

  Lagan Homes (Charlestown Hall) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.

• L Lagan Homes (G.B.) Ltd. Belfast · Main contractor · 50-249 employees

  Lagan Homes (G.B.) Ltd. is a main contractor company based in Belfast, registered at Companies House in 2010.

• L Lagan Homes (Hampton) Ltd Belfast · Main contractor · 10-49 employees

  Lagan Homes (Hampton) Ltd is a main contractor company based in Belfast, registered at Companies House in 2018.

• L Lagan Homes (Hillsborough) Ltd Belfast · Main contractor

  Lagan Homes (Hillsborough) Ltd is a main contractor company based in Belfast, registered at Companies House in 2023.

• L Lagan Homes (Lisburn) Ltd Belfast · Main contractor · 10-49 employees

  Lagan Homes (Lisburn) Ltd is a main contractor company based in Belfast, registered at Companies House in 2014.

• L Lagan Homes (Magherahinch) Ltd Belfast · Main contractor

  Lagan Homes (Magherahinch) Ltd is a main contractor company based in Belfast, registered at Companies House in 2013.

• L Lagan Homes (Millmount) Ltd Belfast · Main contractor

  Lagan Homes (Millmount) Ltd is a main contractor company based in Belfast, registered at Companies House in 2009.

• L Lagan Homes (N.I.) Ltd Belfast · Main contractor · 1-9 employees

  Lagan Homes (N.I.) Ltd is a main contractor company based in Belfast, registered at Companies House in 2013.

• L Lagan Homes (Rathgael) Ltd Belfast · Main contractor

  Lagan Homes (Rathgael) Ltd is a main contractor company based in Belfast, registered at Companies House in 2015.

• L Lagan Homes (Woodbrook) Ltd Belfast · Main contractor

  Lagan Homes (Woodbrook) Ltd is a main contractor company based in Belfast, registered at Companies House in 2016.

• L Lagan Homes Antrim Ltd Belfast · Main contractor

  Lagan Homes Antrim Ltd is a main contractor company based in Belfast, registered at Companies House in 2010.

• L Lagan Homes Newtownards Ltd Belfast · Main contractor

  Lagan Homes Newtownards Ltd is a main contractor company based in Belfast, registered at Companies House in 2013.

• L Laird Contracts Ltd Bangor · Main contractor

  Laird Contracts Limited is a construction company based in Bangor, Northern Ireland.

• L LJ Millar & Sons Strabane · Main contractor · 1-9 employees

  LJ Millar & Sons provides joinery, construction, fit-outs & self-builds across Northern Ireland, founded in 1976. Expert craftsmanship.

• L Looney & Mcalister Ltd Larne · Main contractor · 10-49 employees

  Looney & McAlister provide professional maintenance and building contractors services with a measured, high-quality, hands-on commitment to clients.

• L Lowry Building & Civil Engineering Ltd Castlederg · Main contractor · 50-249 employees

  Lowry Building & Civil Engineering Ltd is a leading contractor in Northern Ireland, delivering quality construction and civil engineering projects for

• L Lowry Construction Ltd Castlederg · Main contractor · 10-49 employees

  Lowry Construction Ltd is a construction company based in Castlederg, Northern Ireland. They are involved in various construction projects.

• M M & N Contracts Ltd Toomebridge · Main contractor · 1-9 employees

  M & N Contracts carry out all types of construction work from New Build Houses to Large Commercial Projects. Based in County Antrim, all types of work

• M M.J. Mcbride Developments Ltd Co Londonderry · Main contractor · 10-49 employees

  MJ McBride is a leading construction company in Northern Ireland, established in 1977. We offer high-quality property solutions across residential, in

• M M.L. Quinn Construction Ltd Newry · Main contractor · 10-49 employees

  Established in 1988, ML Quinn Construction is an Irish construction company that offers a full range of construction services. The work we undertake v

• M M.S.M. (Contracts) Ltd Banbridge · Main contractor

  MSM Contracts is a leading Northern Ireland construction company established in 1985. We deliver high-quality new builds, fit-outs, and refurbishments

• M Madden Contracts Ltd Belfast · Main contractor · 1-9 employees

  Builders focused on meticulous planning, open communication & high quality. We take care of the hard work so you can enjoy watching your vision come t