Construction companies in London ranked by number of employees
Ranked from each company's filed annual accounts. This list last changed on and was last checked against the data on . Showing the top 50 of 562 companies that qualified.
- Companies qualified
- 562 of 86,409
- Ranked first
- SILKSTONE FINANCE LIMITED
- Average employees of no. 1
- 609
- Data as of
Summary
The list is led by SILKSTONE FINANCE LIMITED (opens in a new tab) with 609 average employees; PHOENIX ME LIMITED (opens in a new tab) and MCALEER & RUSHE CONTRACTS UK LIMITED (opens in a new tab) complete the top three.
The ranking uses each company's most recent filed accounts. 562 construction companies in London qualified. DAYGER CONTRACTORS LTD, incorporated in 2023, is the newest company on the list. The top three account for 19.0% of the combined average employees of the listed companies (7,442).
The ranking
Download CSV of this ranking
50 rows, the same as the table. “–” means the figure was not filed.
How this list was made
- Industry
-
Companies with any of these SIC codes on their Companies House record:
- 41100 – Development of building projects
- 41201 – Construction of commercial buildings
- 41202 – Construction of domestic buildings
- 42110 – Construction of roads and motorways
- 42120 – Construction of railways and underground railways
- 42130 – Construction of bridges and tunnels
- 42210 – Construction of utility projects for fluids
- 42220 – Construction of utility projects for electricity and telecommunications
- 42910 – Construction of water projects
- 42990 – Construction of other civil engineering projects
- 43110 – Demolition
- 43120 – Site preparation
- 43130 – Test drilling and boring
- 43210 – Electrical installation
- 43220 – Plumbing, heat and air-conditioning installation
- 43290 – Other construction installation
- 43310 – Plastering
- 43320 – Joinery installation
- 43330 – Floor and wall covering
- 43341 – Painting
- 43342 – Glazing
- 43390 – Other building completion and finishing
- 43910 – Roofing activities
- 43999 – Other specialised construction activities
- Location
- The post town of the registered office address is London.
- Periods compared
- Each company's latest annual accounts. The previous year's figure is shown for context and does not affect the ranking.
- Ranking
- Ranked by the average number of employees in the latest filed accounts. Companies with fewer than 10 employees are left out.
- Exclusions
-
Companies that are dissolved, in liquidation, in administration or proposed to be struck off; dormant companies; and companies whose latest accounts end more than 21 months before the newest accounts in the data (or are dated after it).
Figures that cannot be right, which are most likely filing errors, are also left out:
- an employee number identical to the net assets figure, or above 100,000
- more employees than the company's accounts category allows (micro: 50, small: 250, with a margin)
- less than £5,000 of turnover per employee, or a round number of thousands with no turnover to check it against
- Companies checked
-
Companies with a matching SIC code in London86,409Not active−15,201Dormant−5,175Latest accounts too old or wrongly dated−41,141Average employees not filed in the latest accounts−7,513Average employees below 10−16,808Figure too large or inconsistent to be reliable−9Qualified for this list562