Main contractors in the UK

7023 main contractors listed from the UK register.

• I Indecon Building Ltd Essex · Main contractor · 10-49 employees

  Indecon Building Limited is a construction company offering new builds, refurbishments, and commercial services across London and the South East. They

• I Indiego Build Ltd Southsea · Main contractor · 1-9 employees

  IndieGo Build offers new builds, extensions, and loft conversions with experienced teams and full project management. They guide clients through proje

• I Indigo Group Penarth · Main contractor

  Indigo Group provides outsourced payroll, CIS compliance, and workforce engagement solutions for multisector businesses, ensuring legal compliance and

• I Indurent Propco C7 Ltd Stockport · Main contractor

  Indurent Propco C7 Ltd is a main contractor company based in Stockport, registered at Companies House in 2024.

• I Indus Valley Builders Ltd Slough · Main contractor

  Indus Valley Builders: From foundation to finish, we make your dream home a reality. We build communities, lifestyles, and lasting value with quality,

• I Industrial Contracting Services Ltd Burton-On-Trent · Main contractor · 10-49 employees

  ICS is a proprietor-owned construction company with a reputation for tackling difficult jobs. They offer a range of core services including principal

• I Infinity Building Solutions Ltd Luton · Refurbishment · 1-9 employees

  Infinity Building Solutions offers expert construction and maintenance services, focusing on precision and innovation to exceed client expectations an

• I Infinity Plumbing & Maintenance Sw Ltd Bolton · Main contractor

  Infinity Plumbing & Maintenance Sw Ltd is a main contractor company based in Bolton, registered at Companies House in 2025.

• I Influent Construct Ltd London · Main contractor · 1-9 employees

  The professional digital gateway for Influent Construct LTD, providing project insights, maintenance scheduling, and streamlined quotation workflows f

• I Infrax Build Ltd Nottingham · Main contractor

  Infrax Build Ltd offers quality construction and renovation services in Nottingham, specializing in home renovations, refurbishments, and small-scale

• I Ing Building Ltd Ipswich · Main contractor · 1-9 employees

  ING Building is a professional, experienced building contractor offering the highest standard of domestic and commercial services across Suffolk, spec

• I Ingham & Garner Ltd Prescot · Main contractor · 10-49 employees

  Ingham & Garner Ltd is a family-run construction company based in Prescot, Merseyside. Specialising in extensions and refurbishments, they serve comme

• I Inhus Ltd Leeds · Design & build · 1-9 employees

  INHUS Group specializes in design-build projects, integrating engineering, manufacturing, and construction for a streamlined client experience. They o

• I Inik Construction Ltd London · Extensions · 1-9 employees

  INIK Construction is a trusted building company in London, offering a wide range of residential and commercial construction services including extensi

• 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 Initial Systems Ltd Ashford · Main contractor · 1-9 employees

  Initial Systems is a construction company in the South East. Sectors include education, commercial, healthcare & highways with a focus on sustainabili

• I Innovate D&B Ltd Billingham · Main contractor · 1-9 employees

  Innovate Design and Build Ltd is a family-owned construction firm based in Billingham, Stockton-on-Tees. We offer a comprehensive approach to construc

• I Innovate Design And Build Ltd Loughton · Main contractor · 1-9 employees

  Innovate Design And Build Ltd is a main contractor company based in Loughton, registered at Companies House in 2019.

• I Innovation Construction And Development Ltd Brentwood · Main contractor · 1-9 employees

  Innovation Construction and Development offers high-quality construction services in Essex, including new builds, house extensions, loft conversions,

• I Innovation Construction Design & Build Ltd London · Main contractor · 1-9 employees

  Houzz is a platform for construction and design professionals, offering marketing, CRM, and project management tools. It connects homeowners with pros

• I Innovation Construction Group Manchester · Main contractor · 1-9 employees

  Innovation Construction Group is a Manchester-based leader in building bespoke and exclusive properties, combining modern techniques and innovative de

• I Innovation Experts Ltd London · Design & build

  Innovation Experts Ltd offers premium construction & renovation services in London, providing reliable, high-quality refurbishment, repair, and mainte

• I Innovative Build Ltd Bridgwater · Main contractor · 1-9 employees

  Professional, experienced builders in Somerset, delivering quality construction services with a focus on reliability & customer satisfaction.

• I Innovative Developments Waterlooville · Refurbishment

  Innovative Developments is your trusted construction partner, providing high-quality construction services for all your needs. With 25+ years of exper

• I Inproject Construction Ltd Wembley · Design & build

  Discover top-notch residential builders at INPROJECT CONSTRUCTION Ltd. We specialize in design build construction tailored to your needs.

• I Inseen Construction Ltd Southend-On-Sea · Main contractor · 10-49 employees

  Inseen Construction Limited is a well-established construction and management company in the UK, known for its competence, teamwork, and high levels o

• I Insight Planning & Design Ltd Witney · Main contractor

  Insight Planning & Design Ltd is a main contractor company based in Witney, registered at Companies House in 2025.

• I Inspace Construction Group Ltd Northampton · Main contractor · 10-49 employees

  InSpace Construction are specialists in general building and property maintenance for private and commercial clients. Preferred installer for B&Q.

• I Inspire Concepts Ltd Southall · Main contractor · 1-9 employees

  Inspire Concepts Ltd is a company registered in England. Their website is currently under development.

• I Inspire Property (Jk) Ltd Littlehampton · Refurbishment · 1-9 employees

  Inspire Property Ltd is a family-run building company established in 2010. We provide building, refurbishment and property development services all th

• I Inspired Homes & Build Ltd Leeds · Main contractor · 1-9 employees

  Inspired Homes & Build Ltd is a main contractor company based in Leeds, registered at Companies House in 2020.

• I Inspiring Construction Ltd Wirral · Carpentry & joinery · 1-9 employees

  Inspiring Construction Ltd is a new company based in Wirral, UK. We are dedicated to providing high-quality construction services.

• I Instyle All Trade Paisley · Fire protection · 10-49 employees

  Instyle All Trade delivers comprehensive trade services across all sectors, specializing in expert craftsmanship and fire protection. We ensure high-q

• I Intec Commercial Ltd Croydon · Main contractor

  INTEC COMMERCIAL LIMITED is a company registered in the UK. Their website is currently unavailable.

• I Integrum Construction Ltd Paignton · Main contractor

  Integrum Construction is a family-run business offering complete construction services in Devon and Cornwall, South-West UK. From drawing board to 'fo

• I Intelitrade Developments Ltd London · Property developer · 1-9 employees

  Intelitrade Developments is a Real Estate Development and Principal Contractor company based in Central London, specialising in high-end residential p

• I Intelle Construction Ltd Pontypridd · Main contractor

  Intelle Construction is a construction company founded by senior professionals, experienced in managing complex projects across new build, refurbishme

• I Interclass Public Ltd Company Wolverhampton · Main contractor · 50-249 employees

  Interclass is a family-owned, Midlands-based UK construction business with 50 years of experience. They offer new build, design & build, extension, an

• I Interfix Services Ltd Bookham · Refurbishment · 1-9 employees

  Interfix Services Ltd, formed in 2004, specialises in project management and installation services, primarily within airports and educational faciliti

• I Interholc Construction Ltd London · Main contractor · 1-9 employees

  Interholc Construction is a London-based building company with a strong reputation in residential, commercial, retail, hotels, and leisure sectors. Th

• I Interhome Construction Ltd London · Main contractor

  Interhome Construction Ltd offers bespoke residential and commercial construction services in London, managing projects from new builds to renovations

• I Interior Lab Ltd. Petersfield · Main contractor · 10-49 employees

  InteriorLAB are a main contractor specialising in delivery for prime residential and commercial property sectors.

• I Interiors Services Ltd London · Main contractor

  Interiors Services Ltd is a main contractor company based in London, registered at Companies House in 2021.

• I Interiors UK Ltd Huddersfield · Shopfitting · 50-249 employees

  The UK's leading commercial interior shopfitters to the restaurant, retail and leisure sectors.

• I Interkey Contracting Ltd Corby · Main contractor · 10-49 employees

  Interkey Contracting Ltd, Expert construction solutions for stadiums, commercial developments, industrial facilities, and food and beverage projects a

• I Interskills Solutions Ltd London · Main contractor · 1-9 employees

  Construction company in London specialising in extensions, loft conversions, renovations, kitchen and bathroom installations, and property refurbishme

• I Intervention Services Ltd Pontyclun · Main contractor · 10-49 employees

  Intervention Services Limited are a well established, medium sized, company in South Wales who are privately owned and work together with major contra

• I Intrinsic Construction Ltd Glasgow · Main contractor · 1-9 employees

  Intrinsic Construction: Delivering complex projects across Scotland with a focus on safety, quality, and reliability. Your trusted partner for constru

• I Invertay Construction Ltd Dundee · Main contractor

  Invertay Construction Ltd is a main contractor company based in Dundee, registered at Companies House in 2020.

• I Investimmo Construction Ltd Wigan · Property developer

  Investimmo Group is a UK-based real estate development company specialising in renovations and new build projects over 1,000 sqm.