Other engineering activities Companies in the UK

SIC 71129Professional, scientific and technical activities|157% formed since 2020|Data updated 6 Sept 2026
26,701
Active

26,701 active companies in the UK are classified under other engineering activities (SIC code 71129). This sector falls under Section M — Professional, scientific and technical activities — of the UK Standard Industrial Classification. The sector has a relatively low 7.5% dissolution rate — 26,701 of 32,779 registrations remain active. The sector is experiencing rapid growth, with 157% of active businesses incorporated since 2020 — indicating strong recent demand. 106% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 8.0 years. 176 large companies, 24 medium-sized firms operate in this sector. London leads with 10% of companies in this sector. Companies in this sector hold 2,747 government contracts valued at £12.2B. The sector's longest-standing company was incorporated in 1894.

Source: Companies House register via UVAGATRON, September 2026

26,701
Active Companies
M
SIC Section
1894
Oldest Company
157%
Growth (2020s)
8 yr
Avg Company Age

A rapidly growing sector with 157% of active companies formed since 2020.

Incorporation by Decade
9%
34%
53%
Pre-1990: 547
1990s: 821
2000s: 2,754
2010s: 10,997
2020s: 17,260

Data Signals

Governance
81,8716 src
Financial
49,49611 src
Compliance
14,17614 src
Risk
8,4099 src
Trade
2,9972 src
growth
2,8782 src
innovation
1,3442 src
ESG
3506 src
operational
1531 src
quality
823 src
corporate_structure
351 src
regulatory
31 src

Sector Overview

The other engineering activities sector has a <Link href="/glossary/company-dissolution">7.5% dissolution rate</Link>. The average active company in this sector is 8 years old. Geographic concentration: 10% in LONDON.

7.5%
Dissolution rate
8 yrs
Avg company age

Company Size Breakdown

Small: 224 (53%)Medium: 24 (6%)Large: 176 (42%)

Government Activity

Companies in the other engineering activities sector have been awarded 2,747 government contracts worth £12195.4M in total.

Frequently Asked Questions

How many other engineering activities companies are there in the UK?

There are 26,701 active companies classified under SIC code 71129 (Other engineering activities) in the UK, out of 32,779 total registered.

What is SIC code 71129?

SIC code 71129 stands for "Other engineering activities". It belongs to Section M — Professional, scientific and technical activities of the UK Standard Industrial Classification.

Where are most other engineering activities companies located?

The largest concentrations are in LONDON (2,713), WARRINGTON (572), GLASGOW (430).

What is the average age of other engineering activities companies?

The average active other engineering activities company in the UK is 8 years old, with the oldest registration dating back to 1894.

What government data is available for other engineering activities companies?

Our database contains 161,794 data signals across 12 categories for active other engineering activities companies. The largest category is Governance with 81,871 signals from 6 government sources.

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Data is updated daily from official UK government sources including Companies House. Information is provided for reference only.