Source: every figure comes from Companies House records and the accounts companies file there. How the figures are produced.

How many architecture and engineering firms are there in the UK?

There are 106,934 active architecture and engineering firms with a registered office in the UK, according to Companies House records. 48,530 of them are not dormant and have filed accounts in the last 21 months (data to 31 Jan 2026).

These figures last changed on and were last checked against the data on .

Active companies
106,934
With recent accounts, not dormant
48,530
Employees reported in accounts
129,013
Median net assets
£12,682
Data as of

Summary

Of the 106,934 active architecture and engineering firms registered in the UK, 6,929 are dormant and 48,530 are not dormant and have filed accounts in the last 21 months. The figures below describe those 48,530 companies, unless a table says otherwise.

Together, the 37,042 companies that reported at least one employee reported 129,013 employees in their latest accounts. The median among them is 2.

By size of accounts

Architecture and engineering firms in the UK by accounts category
Accounts category Companies Share
Micro-entity accounts 23,877 49.2%
Small company accounts 24,447 50.4%
Medium company accounts 38 0.1%
Medium or large company accounts 5 0.0%
Category not known 163 0.3%

The category is the type of accounts a company filed, which follows its size. Micro-entities are the smallest.

By number of employees

Architecture and engineering firms in the UK by average number of employees
Average employees Companies Share
None or not reported 11,488 23.7%
1 to 4 32,301 66.6%
5 to 9 2,441 5.0%
10 to 49 2,080 4.3%
50 to 249 209 0.4%
250 or more 11 0.0%

Average employees in the latest accounts. Many small companies have no employees other than their directors, or do not state a number.

By age

Active architecture and engineering firms in the UK by years since incorporation
Years since incorporation Companies Share
Under 2 years 33,068 30.9%
2 to 4 years 20,795 19.4%
5 to 9 years 25,134 23.5%
10 to 19 years 19,166 17.9%
20 years or more 8,771 8.2%

All active companies, dormant ones included.

By year of incorporation

Active architecture and engineering firms in the UK by year of incorporation
Incorporated in Companies
2021 5,789
2022 6,650
2023 7,984
2024 9,398
2025 12,974

Companies incorporated in each year that are still active. Companies that have since closed are not counted, so these are not the numbers formed in each year.

Typical figures

Median figures for architecture and engineering firms in the UK, with the number of companies each median is taken from
Figure Median Companies reporting it
Net assets £12,682 38,523
Employees (companies with one or more) 2 37,042
Cash at bank £22,995 20,263
Cash at bank per employee £12,003 16,979
Fixed assets per employee £2,239 19,562

The median is the middle company: half report more and half report less. Each median covers only the companies that reported that figure, so it describes those companies and not every company in the industry. A median is shown only when at least 30 companies reported the figure.

17,680 of the 34,169 companies with net assets for two consecutive years (51.7%) reported higher net assets than the year before.

Download CSV of these statistics Every figure on this page, unformatted.

How these figures were produced

Industry
Companies with any of these SIC codes on their Companies House record:
  • every code beginning 711 – Architectural and engineering activities and related technical consultancy
Location
Every company on the UK register, wherever its registered office is.
Active companies
Companies whose status at Companies House is active. Dissolved companies are not in the data.
Recent accounts
Accounts made up to a date in the 21 months before 31 Jan 2026, the newest accounts date in the data.
Registered addresses
13,457 of the 48,530 companies with recent accounts (27.7%) are registered at an address shared by 50 or more companies, such as an accountant's office. Those companies may trade somewhere else.