Company
TWO Sigma International Limited
TWO Sigma International Limited is an active UK company (number 06486331), incorporated 2008, with 4 current directors including Andrew Lawrence Rosenfeld and James Michael Burton. Source: Companies House, updated 4th October 2026.
Official record Companies House · updated 4th October 2026 · Sources
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Who leads it
Previous officers 9
- Hunter Rayborn Landrum 2024-2025 View profile
- Carsten Otto 2017-2019 View profile
- Carter Mayberry Lyons 2017-2024 View profile
- Carl Jakob Kule Palmstierna 2013-2018 View profile
- Matthew B Siano 2011-2023 View profile
- Patrick Leslie Degraca 2008-2011 View profile
- Peter Desmond 2008-2008 View profile
- Gregory Shih 2024-2025 View profile
- Siano, Matthew Brady, Esq. 2008-2024 View profile
Directors and secretaries as filed at Companies House.
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About
- Incorporated
- 28/01/2008
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
4 directors on the board
- Andrew Lawrence Rosenfeld Director · appointed 2025
- James Michael Burton Director · appointed 2021
- Malcolm Iain Carruthers Director · appointed 2012
- Christopher Patrick Busby Director · appointed 2019
Directors past 6 years
- Malcolm Iain Carruthers Director · appointed 2012
- Christopher Patrick Busby Director · appointed 2019
First-time vs portfolio directors
First-time (3)
- Andrew Lawrence Rosenfeld Director · appointed 2025
- James Michael Burton Director · appointed 2021
- Christopher Patrick Busby Director · appointed 2019
Portfolio (1)
- Malcolm Iain Carruthers Director · appointed 2012
Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.
The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.
Gaps to watch
- Several long-serving directors could step down together
- Narrow spread of sectors across the board
Where to look Suggested search: succession planning for long-tenured seats; directors from a wider range of sectors.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 06486331
- Status
- Active
- Type
- Private Limited Company
- Edition
- Register edition compiled 4th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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