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  1. Companies
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Company directory

Specialist contractors: limited companies and filing deadlines

42,221 active specialist construction companies that file small or micro-entity accounts, with their Companies House and HMRC deadlines.

Specialist construction companies in numbers

From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is T.G. Allan Limited, incorporated in 1915.

Companies
42,221
Active, small or micro accounts
New in the last 12 months
5,479
13% of the total
Typical net assets
£13K
Median of 31,384 latest balance sheets
Typical size
1 employee
Median average headcount
Accounts due in the next 3 months
10,096
Companies House deadlines

Still trading, by year incorporated

Active specialist construction companies by year of incorporation02,0004,0006,0002017: 1,618 incorporated (still active)1,61820172018: 1,721 incorporated (still active)1,72120182019: 1,861 incorporated (still active)1,86120192020: 1,718 incorporated (still active)1,71820202021: 1,985 incorporated (still active)1,98520212022: 2,111 incorporated (still active)2,11120222023: 2,610 incorporated (still active)2,61020232024: 2,861 incorporated (still active)2,86120242025: 4,614 incorporated (still active)4,61420252026: 4,271 incorporated (still active)4,2712026
Active specialist construction companies by year of incorporation02,0004,0006,0002017: 1,618 incorporated (still active)1,618'172018: 1,721 incorporated (still active)1,721'182019: 1,861 incorporated (still active)1,861'192020: 1,718 incorporated (still active)1,718'202021: 1,985 incorporated (still active)1,985'212022: 2,111 incorporated (still active)2,111'222023: 2,610 incorporated (still active)2,610'232024: 2,861 incorporated (still active)2,861'242025: 4,614 incorporated (still active)4,614'252026: 4,271 incorporated (still active)4,271'26

Companies still active today, by the year they were incorporated; 2026 is the year so far.

How specialist construction companies file

Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.

Every company on these pages is an active private limited company that files small or micro-entity accounts. Each one has to deliver accounts to Companies House within 9 months of its year end, pay corporation tax 9 months and 1 day after it, and file a CT600 with HMRC within 12 months.

Specialist contractors by town

Newly incorporated

The most recent specialist construction companies to register. Their first accounts are due 21 months after incorporation.

Filing for your specialist contractor company?

A.X.E.L Filing prepares your micro-entity accounts for Companies House and your CT600 for HMRC from one set of questions. £49 flat for both, no accountant, no subscription.

Start your filing

Other trades: Builders · Property developers · Civil engineering · Groundworks and demolition · Electricians · Plumbers and heating engineers · Installers · Plasterers · Joiners and carpenters · Floor and wall tilers · Painters and decorators · Glaziers · Finishing trades · Roofers · Scaffolders · Landscapers and gardeners · Cleaning companies · Facilities management · Mechanics and garages · Motor traders · Machinery repair and installation · Repair services

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