SIC code 35300
Steam and air conditioning supply
There are about 1,870 active UK companies registered under SIC code 35300 (Steam and air conditioning supply), as of October 2026.
Live figures, the full list, more filters, and CSV export.
On the register
Share of these companies on the live register, by status.
- Active 85%
- Proposal to strike off 12%
- In insolvency or administration 3%
New registrations
Companies registered each month, October 2025 – September 2026, that are still on the register. See registrations by month across all companies.
Show the figures
| Month | Companies |
|---|---|
| October 2025 | 30 |
| November 2025 | 17 |
| December 2025 | 6 |
| January 2026 | 17 |
| February 2026 | 25 |
| March 2026 | 10 |
| April 2026 | 9 |
| May 2026 | 20 |
| June 2026 | 26 |
| July 2026 | 70 |
| August 2026 | 52 |
| September 2026 | 52 |
Company age
How long the active companies have been registered.
- Under 1 year 17%
- 1–3 years 16%
- 3–5 years 13%
- 5–10 years 19%
- 10–20 years 22%
- 20 years or more 12%
Where they're registered
Active companies by postcode area of their registered office.
- Birmingham (B) 63
- Dartford (DA) 49
- East Central London (EC) 45
- Chelmsford (CM) 41
- Belfast (BT) 40
- Bournemouth (BH) 39
- North London (N) 39
- West Central London (WC) 39
- Bristol (BS) 38
- Portsmouth (PO) 37
Note: Location figures use the registered office address from Companies House. Many companies register at an accountant's or formation agent's address, which may differ from where they trade.
Recently registered companies
Active companies recently registered under SIC code 35300.
| Company | Number | Registered | Town |
|---|---|---|---|
| TRUE NORTH AIR CONDITIONING LIMITED | 17494412 | 1 Oct 2026 | Ossett |
| ATMOSPHERE CLIMATE SOLUTIONS LIMITED | 17492724 | 30 Sept 2026 | LEICESTER |
| FMR AIR CONDITIONING AND REFRIGERATION LTD | 17492119 | 30 Sept 2026 | BIRMINGHAM |
| TW1 AIR CONDITIONING LTD | 17491597 | 30 Sept 2026 | PINNER |
| HCS HOME AIR CONDITIONING LTD | 17488532 | 29 Sept 2026 | LONDON |
| M & D CLIMATE CONTROL LTD | 17486899 | 28 Sept 2026 | SHEFFORD |
| THE AC COMPANY GROUP LTD | 17483847 | 27 Sept 2026 | LONDON |
| D A COOLING LTD | 17479282 | 24 Sept 2026 | NEWARK |
| ADAIR VENTILATION AND MECHANICAL SERVICES LIMITED | 17478861 | 24 Sept 2026 | CHOBHAM |
| AIRFORCE AIR CONDITIONING SPECIALISTS LTD | 17478341 | 24 Sept 2026 | MILTON KEYNES |
Related
- Part of the Mining & Energy industry group.
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Other mining & energy SIC codes:
- 35110 – Production of electricity (10,800)
- 09100 – Support activities for petroleum and natural gas extraction (3,050)
- 35140 – Trade of electricity (2,760)
- 35130 – Distribution of electricity (1,380)
- 06100 – Extraction of crude petroleum (1,130)
- 09900 – Support activities for other mining and quarrying (973)
- 08990 – Other mining and quarrying n.e.c. (871)
- 35120 – Transmission of electricity (763)
- All SIC codes
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- New / Updated Officers
- Charges / Mortgages
- Officer Disqualifications
- Accounts (Assets)
- Insolvency Filings
- Company Officer Resignations
- Existing Company Changes
- In Liquidation
Data as of .