Top Specialist Construction & Trades Companies in the UK
There are 310,813 specialist construction & trades companies in the UK. This page breaks that total down the way a list actually gets built — by sub-industry, by location, and by company size — so you can see how big the addressable slice is before you commit budget to a campaign.
Leading specialist construction & trades companies
Ranked by employee band. Companies House does not publish revenue, and its employee figures are unreliable, so bands come from verified company profiles.
| # | Company | Website | Employees |
|---|---|---|---|
| 1 | Turner & Townsend | turnerandtownsend.com | 10,000+ |
| 2 | Mace | macegroup.com | 5,001–10,000 |
| 3 | Kier Group | kier.co.uk | 10,000+ |
| 4 | Balfour Beatty plc | balfourbeatty.com | 10,000+ |
| 5 | Currie & Brown | curriebrown.com | 1,001–5,000 |
| 6 | Construction News | constructionnews.co.uk | 51–200 |
| 7 | BAM UK & Ireland | bam.com | 1,001–5,000 |
| 8 | Buro Happold | burohappold.com | 1,001–5,000 |
| 9 | Innovo Group | innovogroup.com | 10,000+ |
| 10 | ISG | isgltd.com | 1,001–5,000 |
| 11 | Willmott Dixon | illmottdixon.co.uk | 1,001–5,000 |
| 12 | Wates Group | ates.co.uk | 5,001–10,000 |
| 13 | Galliford Try | gallifordtry.co.uk | 1,001–5,000 |
| 14 | Morgan Sindall Construction & Infrastructure | morgansindall.com | 1,001–5,000 |
| 15 | Faithful+Gould | fgould.com | 1,001–5,000 |
| 16 | KELLER | keller.com | 5,001–10,000 |
| 17 | CITB | citb.co.uk | 501–1,000 |
| 18 | McLaren Construction Group | mclarengroup.com | 1,001–5,000 |
| 19 | Morgan Sindall Construction | morgansindallconstruction.com | 1,001–5,000 |
| 20 | Sir Robert McAlpine | srm.com | 1,001–5,000 |
| 21 | Persimmon Homes | persimmonhomes.com | 1,001–5,000 |
| 22 | Barratt Developments | barrattcareers.co.uk | 5,001–10,000 |
| 23 | Interserve | interserve.com | 10,000+ |
| 24 | Bellway Homes | bellway.co.uk | 1,001–5,000 |
| 25 | Digby Morris Executive Search & Talent Acquisition | digbymorris.com | 11–50 |
| 26 | VINCI Building UK | vinci-building.co.uk | 501–1,000 |
| 27 | BOUYGUES UK | bouygues-uk.com | 1,001–5,000 |
| 28 | The Institution of Structural Engineers | istructe.org | 51–200 |
| 29 | The Chartered Institute of Building (CIOB) | ciob.org | 51–200 |
| 30 | AESG | aesg.com | 201–500 |
| 31 | Redrow | redrow.co.uk | 1,001–5,000 |
| 32 | Laminar Projects | laminarprojects.com | 201–500 |
| 33 | Cundall | cundall.com | 1,001–5,000 |
| 34 | Vistry Group | vistrygroup.co.uk | 1,001–5,000 |
| 35 | Keltbray | keltbray.com | 1,001–5,000 |
| 36 | RED Engineering Design | red-eng.com | 501–1,000 |
| 37 | Building Magazine | building.co.uk | 11–50 |
| 38 | GRAHAM Group | graham.co.uk | 1,001–5,000 |
| 39 | Lovell Partnerships Ltd | lovell.co.uk | 1,001–5,000 |
| 40 | Hoare Lea | hoarelea.com | 501–1,000 |
| 41 | Winvic Construction Ltd | invic.co.uk | 201–500 |
| 42 | World Green Building Council | orldgbc.org | 11–50 |
| 43 | NG Bailey | ngbailey.com | 1,001–5,000 |
| 44 | Tarmac | tarmac.com | 5,001–10,000 |
| 45 | Miller Homes Ltd | millerhomes.co.uk | 1,001–5,000 |
| 46 | Hill Group UK | hill.co.uk | 501–1,000 |
| 47 | Cala Group Limited | cala.co.uk | 1,001–5,000 |
| 48 | Bowmer and Kirkland Ltd | bandk.co.uk | 1,001–5,000 |
| 49 | Keepmoat | keepmoatcorporate.com | 1,001–5,000 |
| 50 | McLaughlin & Harvey Ltd | mclh.co.uk | 501–1,000 |
Need the full list with verified decision-maker contacts? Book a meeting.
The largest sub-industry is electrical installation with 55,075 companies, which is where most specialist construction & trades outbound in the UK ends up pointed. The tail below it is usually less contested and worth a separate sequence.
Geographically it concentrates in London (29,501 companies), followed by Glasgow, Manchester, Birmingham. If your reps work by territory, that split is the fastest way to divide the list.
By headcount, 78,997 are micro companies of 1–9 people and 4,805 sit in the 10–249 range — usually the sweet spot for outbound, since they are large enough to have a budget holder and small enough that the decision maker answers.
Specialist Construction & Trades by sub-industry
| Sub-industry | Companies |
|---|---|
| Electrical installation | 55,075 |
| Other specialised construction activities n.e.c | 54,398 |
| Plumbing, heat and air-conditioning installation | 45,941 |
| Other building completion and finishing | 40,727 |
| Other construction installation | 31,546 |
| Joinery installation | 17,819 |
| Roofing activities | 15,339 |
| Painting | 12,594 |
| Floor and wall covering | 9,859 |
| Plastering | 7,750 |
Where specialist construction & trades companies are based
| City | Companies |
|---|---|
| London | 29,501 |
| Glasgow | 4,899 |
| Manchester | 4,261 |
| Birmingham | 3,873 |
| Bristol | 3,584 |
| Liverpool | 3,255 |
| Leeds | 2,927 |
| Nottingham | 2,794 |
| Cardiff | 2,355 |
| Leicester | 2,316 |
Specialist Construction & Trades by company size
| Employees | Companies |
|---|---|
| 1–9 | 78,997 |
| 10–49 | 4,489 |
| 50–249 | 316 |
| 250–999 | 14 |
| 1,000+ | 14 |
Headcount is published for 104,623 of these companies; the rest are in the database without a size band.
Frequently asked questions
How many specialist construction & trades companies are there in the UK?
Our data covers 310,813 specialist construction & trades companies in the UK, sourced from Companies House and refreshed continuously.
Can I get decision-maker contacts for specialist construction & trades companies?
Yes. Every company record can be paired with verified decision-maker contacts — names, job titles, verified email addresses and direct phone numbers. Book a meeting and we will scope the list against your ICP.
How is the specialist construction & trades segment defined?
Companies are classified using official industry codes from the business register, not keyword guesses on company names, so the segment boundaries match what the company actually registered as.