Company lists · Data refreshed November 2026
Top 25 Spec building contractors based in the United Kingdom
RevenueBase identified 935 company matches for spec building contractors associated with the United Kingdom as of November 2026 and tracks 10,274 professional contacts across them, including 2,616 with verified work emails. London is the largest hub.
This list covers company matches for spec building contractors associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest spec building contractors based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,637 contacts → | ||||
Exact match “Who we are: At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 705 contacts → | ||||
Exact match “Formed in 2001, Winvic Construction Ltd is a leading main contractor that specialises in the design, build and fit-out of industrial, multi-room and commercial projects, and the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 501 contacts → | ||||
Exact match “Design & Build Construction Company” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 495 contacts → | ||||
Exact match “We are a privately-owned, family operated main contractor established in 1974.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 228 contacts → | ||||
Exact match “Established in 2011, HMS is an award-winning building and maintenance contractor based in the North West of England.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 157 contacts → | ||||
Exact match “We turn visions into reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 129 contacts → | ||||
Exact match “We are delighted to announce that we have changed our name and look, and rebranded to Higgins Partnerships.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 110 contacts → | ||||
Exact match “Faithdean Plc has built an excellent reputation as a trusted and established main contractor based in the South East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 105 contacts → | ||||
Exact match “Delivering successful construction projects to our partners.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 101 contacts → | ||||
Exact match “What began as a small family-run business in 2007 has grown into one of the most trusted names in the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 100 contacts → | ||||
Exact match “Established in 2016, Magrock has rapidly grown into one of the Uk’s most trusted contractors, a reputation earned by doing things differently.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 96 contacts → | ||||
Exact match “We are the Northwest's leading building envelope contractors and are responsible for some of the most prestigious building development projects in recent times.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 96 contacts → | ||||
Exact match “MPG Contracts Ltd are specialist contractor involved in both commercial and residential premium fit out, refurbishment & new build with over 30 years’ experience in the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 95 contacts → | ||||
Exact match “Heyrod Construction, Building contractors, Land developers, Project managers based in Manchester Northwest UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 92 contacts → | ||||
Exact match “Building confidence in concrete since 1962.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 87 contacts → | ||||
Exact match “ANT YAPI (UK) LIMITED is a construction company based out of 1 Knightsbridge Green, 5th-floor office 5.48, SW1X 7QA, LONDON, United Kingdom.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 70 contacts → | ||||
Exact match “Since formation in Westgreen have developed a reputation for our ability to deliver a high-quality bespoke service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 65 contacts → | ||||
Exact match “At Vermont we provide a range of progressive construction and property development services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 60 contacts → | ||||
Exact match “GRIGGS was established in 1968 as John E.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 60 contacts → | ||||
Exact match “Through fully integrating all the component parts of real estate, Stelling Properties is able to optimise what we do and how we do it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 60 contacts → | ||||
Exact match “Established in 1992, we’re one of the UK’s longest established and most experienced specialist contractors in our field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 49 contacts → | ||||
Exact match “Helix Group is a regional construction and development company that cares about doing the right things as as well as doing things right.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 49 contacts → | ||||
Exact match “Welcome to headoffice3, specialists in complex and time-critical construction projects, and especially office-to-residential conversions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 48 contacts → | ||||
Exact match “As one of the South West’s leading construction contractors, with over 30 years of experience in delivering construction change by enhancing communities and supporting business…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 37 contacts → | ||||
Exact match “Since formation in 1988 Mascott Construction has built an enviable reputation within the local construction industry for the delivery of bespoke, high-quality projects over a wide…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “spec building contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 935 spec building contractors based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 2,616 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Spec building contractors based in the United Kingdom at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 935 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “spec building contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 2,616 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Spec building contractors by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “spec building contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many spec building contractors are there based in the United Kingdom?
RevenueBase identified 935 company matches for spec building contractors associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
ISG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most spec building contractors?
London leads with 182 company records, followed by Leeds (15) and Manchester (15).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,616 professional contacts with verified work emails tracked across these 935 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 935 spec building contractors based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Spec building contractors by geography
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain
- Spec building contractors based in France
- Spec building contractors based in Sweden
- Spec building contractors based in Mexico
- Spec building contractors based in the Netherlands
- Spec building contractors based in Italy
- Spec building contractors based in Switzerland
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 SmartSearch, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain
Company intelligence · public preview
Top 25 spec building contractors based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 935 matching company records for spec building contractors based in the United Kingdom, with 10,274 tracked contacts and 2,616 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 spec building contractors based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ISGisgltd.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,637 contacts → |
“Who we are: At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Winvic Construction LTDwinvic.co.ukHQ: Northampton, United KingdomReported employees: 201-500 | Northampton, United Kingdom | 201-500 | Exact match | 705 contacts → |
“Formed in 2001, Winvic Construction Ltd is a leading main contractor that specialises in the design, build and fit-out of industrial, multi-room and commercial projects, and the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Montway LTDmontway.co.uk HQ: Waltham Cross, United KingdomReported employees: Not recorded | Waltham Cross, United Kingdom | Not recorded | Exact match | 501 contacts → |
“Design & Build Construction Company” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ardmore Groupardmoregroup.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 495 contacts → |
“We are a privately-owned, family operated main contractor established in 1974.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  HMShmsworks.co.ukHQ: Liverpool, United KingdomReported employees: 501-1,000 | Liverpool, United Kingdom | 501-1,000 | Exact match | 228 contacts → |
“Established in 2011, HMS is an award-winning building and maintenance contractor based in the North West of England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Knight Harwoodknightharwood.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 157 contacts → |
“We turn visions into reality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Higgins Construction PLChigginspartnerships.co.ukHQ: Loughton, United KingdomReported employees: 201-500 | Loughton, United Kingdom | 201-500 | Exact match | 129 contacts → |
“We are delighted to announce that we have changed our name and look, and rebranded to Higgins Partnerships.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Faithdean PLCfaithdean.co.ukHQ: Chatham, United KingdomReported employees: 51-200 | Chatham, United Kingdom | 51-200 | Exact match | 110 contacts → |
“Faithdean Plc has built an excellent reputation as a trusted and established main contractor based in the South East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Gilmartinsgilmartins.co.ukHQ: Houghton Regis, United KingdomReported employees: 51-200 | Houghton Regis, United Kingdom | 51-200 | Exact match | 105 contacts → |
“Delivering successful construction projects to our partners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  JKR Contractors LTDjkrcontractors.comHQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 101 contacts → |
“What began as a small family-run business in 2007 has grown into one of the most trusted names in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Magrockmagrock.co.ukHQ: West Malling, United KingdomReported employees: 51-200 | West Malling, United Kingdom | 51-200 | Exact match | 100 contacts → |
“Established in 2016, Magrock has rapidly grown into one of the Uk’s most trusted contractors, a reputation earned by doing things differently.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Longworth Facadeslongworth-facades.comHQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 96 contacts → |
“We are the Northwest's leading building envelope contractors and are responsible for some of the most prestigious building development projects in recent times.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  MPG Contracts LTDmpgcontracts.co.ukHQ: New Southgate, United KingdomReported employees: 51-200 | New Southgate, United Kingdom | 51-200 | Exact match | 96 contacts → |
“MPG Contracts Ltd are specialist contractor involved in both commercial and residential premium fit out, refurbishment & new build with over 30 years’ experience in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Heyrod Construction Limitedheyrod.co.ukHQ: Chadderton, United KingdomReported employees: 51-200 | Chadderton, United Kingdom | 51-200 | Exact match | 95 contacts → |
“Heyrod Construction, Building contractors, Land developers, Project managers based in Manchester Northwest UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Stephenson Groupstephenson-group.co.ukHQ: Horsham, United KingdomReported employees: 201-500 | Horsham, United Kingdom | 201-500 | Exact match | 92 contacts → |
“Building confidence in concrete since 1962.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ANT Yapi UK Limitedantyapi.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“ANT YAPI (UK) LIMITED is a construction company based out of 1 Knightsbridge Green, 5th-floor office 5.48, SW1X 7QA, LONDON, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Westgreen Constructionwestgreen.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Since formation in Westgreen have developed a reputation for our ability to deliver a high-quality bespoke service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Vermont Constructionvermontcl.comHQ: Liverpool, United KingdomReported employees: 11-50 | Liverpool, United Kingdom | 11-50 | Exact match | 65 contacts → |
“At Vermont we provide a range of progressive construction and property development services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Griggsgriggshomes.co.ukHQ: Borehamwood, United KingdomReported employees: 11-50 | Borehamwood, United Kingdom | 11-50 | Exact match | 60 contacts → |
“GRIGGS was established in 1968 as John E.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Stelling Propertiesstellingproperties.comHQ: Winchester, United KingdomReported employees: 51-200 | Winchester, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Through fully integrating all the component parts of real estate, Stelling Properties is able to optimise what we do and how we do it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Mansell Building Solutionsmansellbuild.co.ukHQ: Chadderton, United KingdomReported employees: 201-500 | Chadderton, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Established in 1992, we’re one of the UK’s longest established and most experienced specialist contractors in our field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Helix Grouphelix.limitedHQ: Newbury, United KingdomReported employees: 51-200 | Newbury, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Helix Group is a regional construction and development company that cares about doing the right things as as well as doing things right.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Headoffice3headoffice3.comHQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Welcome to headoffice3, specialists in complex and time-critical construction projects, and especially office-to-residential conversions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  TEC Construction LTDtec-construction.co.ukHQ: Plymouth, United KingdomReported employees: 11-50 | Plymouth, United Kingdom | 11-50 | Exact match | 48 contacts → |
“As one of the South West’s leading construction contractors, with over 30 years of experience in delivering construction change by enhancing communities and supporting business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Mascott Constructionmascott.co.ukHQ: Belfast, United KingdomReported employees: 51-200 | Belfast, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Since formation in 1988 Mascott Construction has built an enviable reputation within the local construction industry for the delivery of bespoke, high-quality projects over a wide…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 935 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Spec building contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
891 records in the displayed employee bands.
44 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 935 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Spec building contractors by metro
Questions about this company list
What does Exact match mean for spec building contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many spec building contractors did RevenueBase find based in the United Kingdom?
The saved snapshot records 935 matching company records, 10,274 tracked contacts and 2,616 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Spec building contractors by geography
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain
- Spec building contractors based in France
- Spec building contractors based in Sweden
- Spec building contractors based in Mexico
- Spec building contractors based in the Netherlands
- Spec building contractors based in Italy
- Spec building contractors based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 spec building contractors based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/spec-building-contractors/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain
Company intelligence · public preview
Top 25 spec building contractors based in the United Kingdom
RevenueBase records 935 matching company records for spec building contractors based in the United Kingdom, with 10,274 tracked contacts and 2,616 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 spec building contractors based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ISGisgltd.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,637 contacts → |
“Who we are: At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Winvic Construction LTDwinvic.co.uk HQ: Northampton, United KingdomReported employees: 201-500 | Northampton, United Kingdom | 201-500 | Exact match | 705 contacts → |
“Formed in 2001, Winvic Construction Ltd is a leading main contractor that specialises in the design, build and fit-out of industrial, multi-room and commercial projects, and the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Montway LTDmontway.co.uk HQ: Waltham Cross, United KingdomReported employees: Not recorded | Waltham Cross, United Kingdom | Not recorded | Exact match | 501 contacts → |
“Design & Build Construction Company” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ardmore Groupardmoregroup.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 495 contacts → |
“We are a privately-owned, family operated main contractor established in 1974.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HMShmsworks.co.uk HQ: Liverpool, United KingdomReported employees: 501-1,000 | Liverpool, United Kingdom | 501-1,000 | Exact match | 228 contacts → |
“Established in 2011, HMS is an award-winning building and maintenance contractor based in the North West of England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Knight Harwoodknightharwood.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 157 contacts → |
“We turn visions into reality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Higgins Construction PLChigginspartnerships.co.uk HQ: Loughton, United KingdomReported employees: 201-500 | Loughton, United Kingdom | 201-500 | Exact match | 129 contacts → |
“We are delighted to announce that we have changed our name and look, and rebranded to Higgins Partnerships.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Faithdean PLCfaithdean.co.uk HQ: Chatham, United KingdomReported employees: 51-200 | Chatham, United Kingdom | 51-200 | Exact match | 110 contacts → |
“Faithdean Plc has built an excellent reputation as a trusted and established main contractor based in the South East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Gilmartinsgilmartins.co.uk HQ: Houghton Regis, United KingdomReported employees: 51-200 | Houghton Regis, United Kingdom | 51-200 | Exact match | 105 contacts → |
“Delivering successful construction projects to our partners.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | JKR Contractors LTDjkrcontractors.com HQ: Aberdeen, United KingdomReported employees: 51-200 | Aberdeen, United Kingdom | 51-200 | Exact match | 101 contacts → |
“What began as a small family-run business in 2007 has grown into one of the most trusted names in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Magrockmagrock.co.uk HQ: West Malling, United KingdomReported employees: 51-200 | West Malling, United Kingdom | 51-200 | Exact match | 100 contacts → |
“Established in 2016, Magrock has rapidly grown into one of the Uk’s most trusted contractors, a reputation earned by doing things differently.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Longworth Facadeslongworth-facades.com HQ: Warrington, United KingdomReported employees: 51-200 | Warrington, United Kingdom | 51-200 | Exact match | 96 contacts → |
“We are the Northwest's leading building envelope contractors and are responsible for some of the most prestigious building development projects in recent times.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | MPG Contracts LTDmpgcontracts.co.uk HQ: New Southgate, United KingdomReported employees: 51-200 | New Southgate, United Kingdom | 51-200 | Exact match | 96 contacts → |
“MPG Contracts Ltd are specialist contractor involved in both commercial and residential premium fit out, refurbishment & new build with over 30 years’ experience in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Heyrod Construction Limitedheyrod.co.uk HQ: Chadderton, United KingdomReported employees: 51-200 | Chadderton, United Kingdom | 51-200 | Exact match | 95 contacts → |
“Heyrod Construction, Building contractors, Land developers, Project managers based in Manchester Northwest UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Stephenson Groupstephenson-group.co.uk HQ: Horsham, United KingdomReported employees: 201-500 | Horsham, United Kingdom | 201-500 | Exact match | 92 contacts → |
“Building confidence in concrete since 1962.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ANT Yapi UK Limitedantyapi.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 87 contacts → |
“ANT YAPI (UK) LIMITED is a construction company based out of 1 Knightsbridge Green, 5th-floor office 5.48, SW1X 7QA, LONDON, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Westgreen Constructionwestgreen.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Since formation in Westgreen have developed a reputation for our ability to deliver a high-quality bespoke service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Vermont Constructionvermontcl.com HQ: Liverpool, United KingdomReported employees: 11-50 | Liverpool, United Kingdom | 11-50 | Exact match | 65 contacts → |
“At Vermont we provide a range of progressive construction and property development services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Griggsgriggshomes.co.uk HQ: Borehamwood, United KingdomReported employees: 11-50 | Borehamwood, United Kingdom | 11-50 | Exact match | 60 contacts → |
“GRIGGS was established in 1968 as John E.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Stelling Propertiesstellingproperties.com HQ: Winchester, United KingdomReported employees: 51-200 | Winchester, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Through fully integrating all the component parts of real estate, Stelling Properties is able to optimise what we do and how we do it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Mansell Building Solutionsmansellbuild.co.uk HQ: Chadderton, United KingdomReported employees: 201-500 | Chadderton, United Kingdom | 201-500 | Exact match | 60 contacts → |
“Established in 1992, we’re one of the UK’s longest established and most experienced specialist contractors in our field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Helix Grouphelix.limited HQ: Newbury, United KingdomReported employees: 51-200 | Newbury, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Helix Group is a regional construction and development company that cares about doing the right things as as well as doing things right.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Headoffice3headoffice3.com HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Welcome to headoffice3, specialists in complex and time-critical construction projects, and especially office-to-residential conversions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | TEC Construction LTDtec-construction.co.uk HQ: Plymouth, United KingdomReported employees: 11-50 | Plymouth, United Kingdom | 11-50 | Exact match | 48 contacts → |
“As one of the South West’s leading construction contractors, with over 30 years of experience in delivering construction change by enhancing communities and supporting business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Mascott Constructionmascott.co.uk HQ: Belfast, United KingdomReported employees: 51-200 | Belfast, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Since formation in 1988 Mascott Construction has built an enviable reputation within the local construction industry for the delivery of bespoke, high-quality projects over a wide…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 935 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Spec building contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
891 records in the displayed employee bands.
44 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 935 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Spec building contractors by metro
Questions about this company list
What does Exact match mean for spec building contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many spec building contractors did RevenueBase find based in the United Kingdom?
The saved snapshot records 935 matching company records, 10,274 tracked contacts and 2,616 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Spec building contractors by geography
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain
- Spec building contractors based in France
- Spec building contractors based in Sweden
- Spec building contractors based in Mexico
- Spec building contractors based in the Netherlands
- Spec building contractors based in Italy
- Spec building contractors based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 spec building contractors based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/spec-building-contractors/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Spec building contractors based in the United States
- Spec building contractors based in Canada
- Spec building contractors based in Brazil
- Spec building contractors based in Australia
- Spec building contractors based in Germany
- Spec building contractors based in Spain