What Portswigger say about themselves
“We enable the world to secure the web. Burp Suite, the Web Security Academy, and world-leading research from PortSwigger — the AppSec community’s home.”
Portswigger Ltd
- Incorporated
- 9 October 2008 (18 years)
- Industry
- Business and domestic software development (62012)
- Directors
- Adam GrossTimothy Drager
- Owned by
- Dafydd Nicholas Stuttard
- Accounts type
- Group
- Region
- North West
- Address
- 6 Booths ParkChelford RoadKnutsfordWA16 8ZS
Website & contact details
- Website
Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 23 October 2027
- Last conf. stmt
- 9 October 2026
Officers 7 active
Officer details are public data from the Companies House register.
Gross, Adam
Director · Appointed 25 February 2026
American
Born April 1972 (54)
Davenport, Ian
Secretary · Appointed 20 August 2025
Drager, Timothy
Director · Appointed 24 May 2024
Canadian,Swiss
Born December 1988 (37)
British
Born July 1975 (51)
Agyei, Yvonne
Director · Appointed 1 July 2019
American
Born February 1969 (57)
British
Born April 1977 (49)
Stuttard, Dafydd Nicholas, Dr
Director · Appointed 9 October 2008
British
Born October 1972 (54)
Officer history (6 former)
25 February 2026
Appointed Gross, Adam as Director
20 August 2025
Appointed Davenport, Ian as Secretary
20 August 2025
Resigned Blomfield, Paul as Secretary
20 August 2025
Resigned Blomfield, Paul Richard as Director
20 August 2025
Resigned Biagini, Larry as Director
24 May 2024
Appointed Biagini, Larry as Director
24 May 2024
Appointed Drager, Timothy as Director
20 October 2023
Resigned Whitehouse, Oliver as Director
31 March 2022
1 November 2019
1 July 2019
Appointed Agyei, Yvonne as Director
1 April 2019
1 January 2019
Appointed Whitehouse, Oliver as Director
1 January 2019
Appointed Blomfield, Paul Richard as Director
23 January 2015
8 May 2012
Appointed Blomfield, Paul as Secretary
8 May 2012
Resigned Stuttard, Dafydd, Dr as Secretary
9 October 2008
Appointed Stuttard, Dafydd Nicholas, Dr as Director
9 October 2008
Appointed Stuttard, Dafydd, Dr as Secretary
Ownership 2 active
People and entities with significant control, from the Companies House PSC register
Mark Francis Dzialga
Individual · Notified 18 July 2024
Has significant influence or control (as a firm)
American
Born October 1964 (62)
Dafydd Nicholas Stuttard
Individual · Notified 9 October 2016
Owns 50–75% of shares
Holds 50–75% of voting rights
Right to appoint and remove directors
British
Born October 1972 (54)
Former controllers (1)
14 October 2022
Ceased Rebecca Jane Stuttard — Holds 75–100% of voting rights
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 21 October 2026 | Statement of capital following an allotment of shares | |||
| 30 June 2026 | Statement of capital following an allotment of shares | |||
| 28 May 2026 | Group of companies' accounts | 31 December 2025 | ||
| 24 March 2026 | Appointment of a director | |||
| 20 March 2026 | Statement of capital following an allotment of shares |
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