Companies in Maidenhead
7,216 active companies have their registered office in the Maidenhead post town, 783 of them incorporated in the last 12 months. That is 0.1% of active UK companies with a recorded post town.
Based on registered office addresses on the Companies House register; a company's registered office is not always where it trades.
Key figures
- Active companies
- 7,216
- Incorporated in the last 12 months
- 783 (10.9%)
- Average company age
- 12.2 years
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Largest companies in Maidenhead by net assets
Ranked by net assets (total assets less total liabilities) in each company's latest accounts on file, for periods ending in the last 30 months, as at 11 October 2026. Net assets are not turnover and do not measure size of trade. Employees are shown where the accounts state an average number.
| Rank | Company | Net assets | Employees | Accounts year end |
|---|---|---|---|---|
| 1 | RWS HOLDINGS PLC | £763.2m | Not given | 30 September 2025 |
| 2 | RANK GROUP FINANCE PLC | £280.3m | Not given | 30 June 2025 |
| 3 | MERPAS (UK) LIMITED | £149.3m | 2 | 31 December 2024 |
| 4 | HAULFRYN HOLDINGS LIMITED | £107.2m | Not given | 31 January 2026 |
| 5 | HAULFRYN LIMITED | £107.2m | 194 | 31 January 2026 |
| 6 | BIOGEN IDEC LIMITED | £92.5m | Not given | 31 December 2025 |
| 7 | RIF GROUP HOLDINGS LTD | £36.1m | 9 | 30 September 2025 |
| 8 | CT SQUIRREL GROUP LTD | £25.5m | 2 | 31 May 2025 |
| 9 | HALA LIMITED | £22.1m | Not given | 30 June 2024 |
| 10 | ABBOTT RAPID DIAGNOSTICS LIMITED | £20.4m | Not given | 31 December 2025 |
Only companies whose latest figures balance and pass our checks, in pounds and not dormant, are ranked, so this is the largest among those we can show reliably, not every company registered in Maidenhead. Figures are as filed with Companies House; CompanyStack does not audit them. A registered office is not always where a company trades.
Most common industries
Largest by reported turnover in Maidenhead
Ranked by turnover in each company's latest accounts on file, for periods ending in the last 30 months, as at 11 October 2026. Many small companies file accounts without turnover, so this ranks the companies that report it.
| Rank | Company | Turnover | Accounts year end |
|---|---|---|---|
| 1 | RWS HOLDINGS PLC | £690.1m | 30 September 2025 |
| 2 | LIFE SERVICES GROUP LTD | £287.9m | 26 December 2025 |
| 3 | BIOGEN IDEC LIMITED | £183.4m | 31 December 2025 |
| 4 | HALA LIMITED | £97.9m | 30 June 2024 |
| 5 | WEST LONDON ENERGY RECOVERY HOLDINGS LTD | £54.2m | 31 March 2026 |
| 6 | WEST LONDON ENERGY RECOVERY LTD | £54.2m | 31 March 2026 |
| 7 | CORNWALL ENERGY RECOVERY LTD | £52.7m | 31 March 2026 |
| 8 | CORNWALL ENERGY RECOVERY HOLDINGS LTD | £52.7m | 31 March 2026 |
| 9 | MERSEYSIDE ENERGY RECOVERY HOLDINGS LTD | £45.4m | 31 March 2025 |
| 10 | HAULFRYN LIMITED | £38.0m | 31 January 2026 |
Only companies whose latest figures balance and pass our checks, in pounds and not dormant, are ranked, so this is the largest among those we can show reliably, not every company. Figures are as filed with Companies House; CompanyStack does not audit them.
Newest companies
| Company | Incorporated |
|---|---|
| ACCOUNTANCY ANSWERS LTD | 11 October 2026 |
| & PAUSE SAUNA LTD | 9 October 2026 |
| CARE ACCOUNTANCY BERKSHIRE LTD | 9 October 2026 |
| 12 CAMELS LTD | 9 October 2026 |
| SZYMANIEC PROPERTY LIMITED | 8 October 2026 |
| KLE PROPERTY GROUP LTD | 8 October 2026 |
| ARIVULABS LTD | 8 October 2026 |
| KENTIGERN'S NAG LTD | 7 October 2026 |
| PRE-BOOKED LTD | 7 October 2026 |
| MAGIC AND MINT LTD | 7 October 2026 |
Search further
Filter companies by postcode, industry and financials with the CompanyStack API — for example GET https://api.companystack.co.uk/company/postcode/{postcode}.
