Production of electricity Companies in the UK

SIC 35110Electricity, gas, steam and air conditioning supply|95.2% formed since 2020|Data updated 6 Sept 2026
10,599
Active

10,599 active companies in the UK are classified under production of electricity (SIC code 35110). This sector falls under Section D — Electricity, gas, steam and air conditioning supply — of the UK Standard Industrial Classification. The sector has a relatively low 4% dissolution rate — 10,599 of 11,684 registrations remain active. The sector is experiencing rapid growth, with 95.2% of active businesses incorporated since 2020 — indicating strong recent demand. 101% of companies were formed after 2010, marking this as a sector with predominantly recent entrants. The average company age in this sector is 8.7 years. 1,199 large companies, 18 medium-sized firms operate in this sector. The sector is heavily concentrated in London, which accounts for 31% of all companies. Companies in this sector hold 209 government contracts valued at £1.8B. The sector's longest-standing company was incorporated in 1918.

Source: Companies House register via UVAGATRON, September 2026

10,599
Active Companies
D
SIC Section
1918
Oldest Company
95.2%
Growth (2020s)
8.7 yr
Avg Company Age

A rapidly growing sector with 95.2% of active companies formed since 2020.

Incorporation by Decade
47%
45%
Pre-1990: 47
1990s: 203
2000s: 663
2010s: 5,495
2020s: 5,230

Data Signals

Governance
34,2076 src
Financial
25,49312 src
Risk
14,9609 src
Compliance
7,94015 src
Trade
7022 src
innovation
5992 src
corporate_structure
5411 src
ESG
2586 src
growth
2232 src
quality
373 src
operational
241 src

Sector Overview

The production of electricity sector has a <Link href="/glossary/company-dissolution">4% dissolution rate</Link>. The average active company in this sector is 8.7 years old. Geographic concentration: 31% in LONDON.

4%
Dissolution rate
8.7 yrs
Avg company age

Company Size Breakdown

Small: 1,570 (56%)Medium: 18 (1%)Large: 1,199 (43%)

Government Activity

Companies in the production of electricity sector have been awarded 209 government contracts worth £1815.4M in total.

Frequently Asked Questions

How many production of electricity companies are there in the UK?

There are 10,599 active companies classified under SIC code 35110 (Production of electricity) in the UK, out of 11,684 total registered.

What is SIC code 35110?

SIC code 35110 stands for "Production of electricity". It belongs to Section D — Electricity, gas, steam and air conditioning supply of the UK Standard Industrial Classification.

Where are most production of electricity companies located?

The largest concentrations are in LONDON (3,309), BRISTOL (335), EDINBURGH (289).

What is the average age of production of electricity companies?

The average active production of electricity company in the UK is 8.7 years old, with the oldest registration dating back to 1918.

What government data is available for production of electricity companies?

Our database contains 84,984 data signals across 11 categories for active production of electricity companies. The largest category is Governance with 34,207 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.