# The biggest software and tech companies in South East

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

Softcat is the biggest company among the software and tech companies registered in South East by turnover, with £1.46bn in its latest filed accounts. Corsair Components and Rightmove follow. Together the 10 companies below turned over £3.64bn in their latest filed years.

| Rank | Company | Town | Turnover | Year |
| ---: | --- | --- | ---: | --- |
| 1 | [Softcat](https://firmfacts.co/company/softcat-02174990) | Marlow | £1.46bn | FY to Jul 2025 |
| 2 | [Corsair Components](https://firmfacts.co/company/corsair-components-07141959) | Wokingham | £592m | FY to Dec 2025 |
| 3 | [Rightmove](https://firmfacts.co/company/rightmove-06426485) | Milton Keynes | £425m | FY to Dec 2025 |
| 4 | [Kellogg Brown & Root](https://firmfacts.co/company/kellogg-brown-root-00645125) | Leatherhead | £361m | FY to Dec 2024 |
| 5 | [Vantage Data Centers UK](https://firmfacts.co/company/vantage-data-centers-uk-06132144) | Newbury | £196m | FY to Dec 2025 |
| 6 | [Sas Software](https://firmfacts.co/company/sas-software-01316437) | Marlow | £186m | FY to Dec 2025 |
| 7 | [Hiperdist](https://firmfacts.co/company/hiperdist-06504536) | Camberley | £122m | FY to Dec 2025 |
| 8 | [Iqvia Laboratories Discovery UK](https://firmfacts.co/company/iqvia-laboratories-discovery-uk-04622227) | Reading | £105m | FY to Dec 2025 |
| 9 | [Wirehive](https://firmfacts.co/company/wirehive-05451011) | Farnborough | £100m | FY to Dec 2024 |
| 10 | [Shi Corporation UK](https://firmfacts.co/company/shi-corporation-uk-10953103) | Milton Keynes | £95.8m | FY to Dec 2025 |

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Updated 2026-10-30 from the latest filed accounts at Companies House (Open Government Licence v3.0). Page: https://firmfacts.co/blog/biggest-software-and-tech-companies-in-south-east