SIC code 35300 covers steam and air conditioning supply activities in the UK, with 1,518 active companies currently registered. It falls under Section D (Electricity, gas, steam and air conditioning supply) of the UK SIC 2007 classification system. The average company age is 8.9 years.
SIC code 35300 stands for "Steam and air conditioning supply" under the UK Standard Industrial Classification (SIC 2007) system. It belongs to Section D — Electricity, gas, steam and air conditioning supply. Companies use this code when registering with Companies House to indicate their primary business activity.
There are currently 1,518 active companies registered under SIC code 35300 in the UK, out of 1,712 total registrations (including dissolved companies).
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Data sourced from Companies House, HM Land Registry, FCA Register, and 50+ government databases. SIC classification follows the UK Standard Industrial Classification of Economic Activities 2007 (SIC 2007). Last updated: 2026-04-05.