# The 10 biggest companies in South East

The companies registered in South East with the highest turnover in their latest filed accounts, ranked, with profit and growth.

Reckitt is the biggest company registered in South East by turnover, with £14.2bn in its latest filed accounts. Haleon and Serco Group follow. Together the 10 companies below turned over £46.1bn in their latest filed years.

| Rank | Company | Town | Turnover | Year |
| ---: | --- | --- | ---: | --- |
| 1 | [Reckitt](https://firmfacts.co/company/reckitt-benckiser-group-06270876) | Berkshire | £14.2bn | FY to Dec 2025 |
| 2 | [Haleon](https://firmfacts.co/company/haleon-13691224) | Weybridge | £11bn | FY to Dec 2025 |
| 3 | [Serco Group](https://firmfacts.co/company/serco-group-02048608) | Bartley Way Hook | £4.88bn | FY to Dec 2025 |
| 4 | [Taylor Wimpey](https://firmfacts.co/company/taylor-wimpey-00296805) | High Wycombe | £3.84bn | FY to Dec 2025 |
| 5 | [Halma](https://firmfacts.co/company/halma-00040932) | Amersham | £2.58bn | FY to Mar 2026 |
| 6 | [Berkeley Group Holdings](https://firmfacts.co/company/the-berkeley-group-holdings-05172586) | Cobham | £2.38bn | FY to Apr 2026 |
| 7 | [Micron Europe](https://firmfacts.co/company/micron-europe-02341071) | Bracknell | £2.19bn | FY to Aug 2025 |
| 8 | [QinetiQ](https://firmfacts.co/company/qinetiq-group-04586941) | Farnborough | £1.92bn | FY to Mar 2026 |
| 9 | [Michael Page](https://firmfacts.co/company/michael-page-03310225) | Addlestone | £1.6bn | FY to Dec 2025 |
| 10 | [Mitsubishi HC Capital UK](https://firmfacts.co/company/mitsubishi-hc-capital-uk-01630491) | Staines-Upon-Thames | £1.48bn | FY to Mar 2026 |

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Updated 2026-11-02 from the latest filed accounts at Companies House (Open Government Licence v3.0). Page: https://firmfacts.co/blog/biggest-companies-in-south-east