Engineering related scientific and technical consulting activities Companies in the UK

SIC 71122Professional, scientific and technical activities|211% formed since 2020|Data updated 6 Sept 2026
22,079
Active

22,079 active companies in the UK are classified under engineering related scientific and technical consulting activities (SIC code 71122). This sector falls under Section M — Professional, scientific and technical activities — of the UK Standard Industrial Classification. The sector has a relatively low 7.1% dissolution rate — 22,079 of 25,821 registrations remain active. The sector is experiencing rapid growth, with 211% of active businesses incorporated since 2020 — indicating strong recent demand. 105% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 6.4 years. 122 large companies, 13 medium-sized firms operate in this sector. London leads with 14% of companies in this sector. Companies in this sector hold 4,981 government contracts valued at £9.6B.

Source: Companies House register via UVAGATRON, September 2026

22,079
Active Companies
M
SIC Section
1920
Oldest Company
211%
Growth (2020s)
6.4 yr
Avg Company Age

A rapidly growing sector with 211% of active companies formed since 2020.

Incorporation by Decade
29%
62%
Pre-1990: 220
1990s: 490
2000s: 1,482
2010s: 7,477
2020s: 15,780

Data Signals

Governance
66,9196 src
Financial
37,57710 src
Compliance
10,27916 src
Risk
5,83310 src
growth
5,0862 src
innovation
2,4112 src
Trade
1,2962 src
ESG
3366 src
quality
804 src
operational
261 src
corporate_structure
201 src
regulatory
11 src

Sector Overview

The engineering related scientific and technical consulting activities sector has a <Link href="/glossary/company-dissolution">7.1% dissolution rate</Link>. The average active company in this sector is 6.4 years old. Geographic concentration: 14% in LONDON.

7.1%
Dissolution rate
6.4 yrs
Avg company age

Company Size Breakdown

Small: 157 (54%)Medium: 13 (4%)Large: 122 (42%)

Government Activity

Companies in the engineering related scientific and technical consulting activities sector have been awarded 4,981 government contracts worth £9599.3M in total.

Frequently Asked Questions

How many engineering related scientific and technical consulting activities companies are there in the UK?

There are 22,079 active companies classified under SIC code 71122 (Engineering related scientific and technical consulting activities) in the UK, out of 25,821 total registered.

What is SIC code 71122?

SIC code 71122 stands for "Engineering related scientific and technical consulting activities". It belongs to Section M — Professional, scientific and technical activities of the UK Standard Industrial Classification.

Where are most engineering related scientific and technical consulting activities companies located?

The largest concentrations are in LONDON (3,162), GLASGOW (422), BRISTOL (372).

What is the average age of engineering related scientific and technical consulting activities companies?

The average active engineering related scientific and technical consulting activities company in the UK is 6.4 years old, with the oldest registration dating back to 1920.

What government data is available for engineering related scientific and technical consulting activities companies?

Our database contains 129,864 data signals across 12 categories for active engineering related scientific and technical consulting activities companies. The largest category is Governance with 66,919 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.