Other engineering activities Companies in the UK

SIC 71129Professional, scientific and technical activities|143.8% formed since 2020|Data updated 5 Jun 2026
27,180
Active

27,180 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 0.1% dissolution rate — 27,180 of 30,997 registrations remain active. The sector is experiencing rapid growth, with 143.8% of active businesses incorporated since 2020 — indicating strong recent demand. 99% 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. 175 large companies, 22 medium-sized firms operate in this sector. London leads with 10% of companies in this sector. Companies in this sector hold 2,848 government contracts valued at £12.3B. The sector's longest-standing company was incorporated in 1894.

Source: Companies House register via UVAGATRON, June 2026

27,180
Active Companies
M
SIC Section
1894
Oldest Company
143.8%
Growth (2020s)
8 yr
Avg Company Age

A rapidly growing sector with 143.8% of active companies formed since 2020.

Incorporation by Decade
9%
36%
51%
Pre-1990: 546
1990s: 824
2000s: 2,759
2010s: 11,022
2020s: 15,846

Data Signals

Governance
85,8996 src
Financial
47,45811 src
Compliance
13,74812 src
Risk
7,1029 src
Trade
3,0762 src
growth
2,9162 src
innovation
5102 src
ESG
3536 src
operational
1541 src
quality
433 src
corporate_structure
251 src
regulatory
31 src

Sector Overview

The other engineering activities sector has a <Link href="/glossary/company-dissolution">0.1% dissolution rate</Link>. The average active company in this sector is 8 years old. Geographic concentration: 10% in LONDON.

0.1%
Dissolution rate
8 yrs
Avg company age

Company Size Breakdown

Small: 224 (53%)Medium: 22 (5%)Large: 175 (42%)

Government Activity

Companies in the other engineering activities sector have been awarded 2,848 government contracts worth £12346.2M in total.

Frequently Asked Questions

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

There are 27,180 active companies classified under SIC code 71129 (Other engineering activities) in the UK, out of 30,997 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 161,287 data signals across 12 categories for active other engineering activities companies. The largest category is Governance with 85,899 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.