Simon Irish

No open positions remaining

Net worth: 47 M $ as of 2026-05-30

57 year

30 connections

Finance

Consumer Services

Technology Services

Profile

Simon Irish is the founder of Terrestrial Energy, Inc. (Old), founded in 2013, holding the title Chief Executive Officer & Director.
Current jobs include Chief Executive Officer & Director at Terrestrial Energy, Inc. starting in 2025, and Director at XStream Systems, Inc. since 2009.
Former jobs include Director at Central Resources Corp., Director-US Business at FRM Research LLC from 2001 to 2002, Head-Man Global Strategies at Man Strategic Holdings Ltd. from 2002 to 2009, Senior Vice President at Financial Risk Management Ltd. from 1999 to 2001, and Vice President at Credit Suisse International from 1995 to 1999.
Education includes graduate degrees from the University of Cambridge and London Business School.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
4.88%	2026-04-19	5,166,709 ( 4.88% )	47 M $	2026-05-30

Simon Irish active positions

Companies	Position	Start
XStream Systems, Inc. XStream Systems, Inc. Information Technology ServicesTechnology Services Manufactures equipment for material identification systems	Director/Board Member	2009-11-23
Terrestrial Energy, Inc. Terrestrial Energy, Inc. Electric UtilitiesUtilities Develops nuclear power plants	Founder	2012-12-31

All active positions of Simon Irish

Former positions of Simon Irish

Companies	Position	End
Man Strategic Holdings Ltd. Man Strategic Holdings Ltd. Investment ManagersFinance Engages in alternative investment management business	Corporate Officer/Principal	2008-12-31
FRM Research LLC FRM Research LLC Investment ManagersFinance FRM Research LLC is a private company based in New York, NY.	Corporate Officer/Principal	2002-09-30
Financial Risk Management Ltd. Financial Risk Management Ltd. Investment ManagersFinance FRM is an active, research-based manager which aims to provide attractive returns with low volatility and near-zero correlation to traditional assets over market cycles. They offer a range of multi-manager investment services including commingled funds of hedge funds, managed accounts, risk management and manager seeding. The firm follows a portfolio-driven approach, providing a range of strategies including sector, equity long/short, specialist credit, directional trading and customized portfolios.	Corporate Officer/Principal	2001-08-31
Credit Suisse International Credit Suisse International Financial ConglomeratesFinance Provides financial services	Corporate Officer/Principal	1999-03-31
Central Resources Corp. Central Resources Corp. Other Metals/MineralsNon-Energy Minerals Mines for uranium and other minerals	Director/Board Member	-

See the detail of Simon Irish's experience

Training of Simon Irish

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Linked companies

Private companies	9
Man Strategic Holdings Ltd. Man Strategic Holdings Ltd. Investment ManagersFinance Engages in alternative investment management business	Finance
Financial Risk Management Ltd. Financial Risk Management Ltd. Investment ManagersFinance FRM is an active, research-based manager which aims to provide attractive returns with low volatility and near-zero correlation to traditional assets over market cycles. They offer a range of multi-manager investment services including commingled funds of hedge funds, managed accounts, risk management and manager seeding. The firm follows a portfolio-driven approach, providing a range of strategies including sector, equity long/short, specialist credit, directional trading and customized portfolios.	Finance
XStream Systems, Inc. XStream Systems, Inc. Information Technology ServicesTechnology Services Manufactures equipment for material identification systems	Technology Services
Credit Suisse International Credit Suisse International Financial ConglomeratesFinance Provides financial services	Finance
Central Resources Corp. Central Resources Corp. Other Metals/MineralsNon-Energy Minerals Mines for uranium and other minerals	Non-Energy Minerals
University of Cambridge University of Cambridge Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
London Business School London Business School Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
FRM Research LLC FRM Research LLC Investment ManagersFinance FRM Research LLC is a private company based in New York, NY.	Finance
Terrestrial Energy, Inc. Terrestrial Energy, Inc. Electric UtilitiesUtilities Develops nuclear power plants	Utilities