About Terrestrial Energy
Terrestrial Energy is a publicly listed company based in Oakville (Canada) founded in 2013 by Chris Popoff. Small modular reactors are developed for integral molten salt technology. Terrestrial Energy has raised $117.72 million across 18 funding rounds from investors including Innovation, Science and Economic Development Canada, OSTI.GOV and ARPA-E. Its chief executive, as recorded, is Simon Irish. Its website terrestrialenergy.com draws about 39 thousand monthly visits. Its focus areas include Energy, Nuclear Energy, Hardware Developer and Reactors. Its legal entity is Terrestrial Energy Limited.
Company details
Terrestrial Energy, founded in 2013 in Oakville, Canada, focuses on working in the energy sector, nuclear energy, hardware developer, reactors, nuclear fission, and small modular reactor. Developer of small modular reactor. The company is dedicated to excellence, innovation, and customer satisfaction, ensuring sustainable practices and long-term success in its sectors.
- Headquarters Oakville, Canada
- Founders Chris Popoff
- Stage Public
- SectorsEnergy & Utilities
- Email••••••••
- Phone•••• ••••
- Website terrestrialenergy.com
- Social LinkedIn X Facebook
- Legal Name Terrestrial Energy Inc.
- Total Equity Funding$117.72M (USD)
in 18 rounds
- Latest Funding Round$85.32K (USD), Series D
Mar 2026
- Investors
Funding Insights of Terrestrial Energy
Terrestrial Energy has successfully raised a total of $117.72M across 18 strategic funding rounds. The most recent funding activity was a Series D round of $85.32 thousand completed in March 2026. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $117.72M
- Total Rounds 18
- Last Round Series D — $85,320
- First Round $669,704
(Mar 2014)
- Investors Count 4
Latest 10 of 18 funding rounds of Terrestrial Energy with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Mar 2026 | $85,320 | Series D | – | – | – |
| Jul 2025 | $25.8M | Series D | – | – | – |
| Feb 2025 | $15.61M | Series D | – | – | – |
| Jun 2024 | $13.33M | Series D | – | – | – |
| Mar 2024 | $500,000 | Grant | – | – | |
| Oct 2023 | $2.78M | Series C | – | – | – |
| May 2021 | $18.81M | Series C | – | – | – |
| Oct 2020 | $20M | Grant | – | – | |
| Jul 2020 | $5.42M | Series B | – | – | – |
| Mar 2019 | $15.16M | Series B | – | – | – |
4 investors in total: 4 institutional.
Investors in Terrestrial Energy
Terrestrial Energy has secured backing from 4 investors, including institutional and venture fund investors. Prominent investors backing the company include Innovation, Science and Economic Development Canada, OSTI.GOV and ARPA-E.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
High-risk energy technologies are funded through competitive grants. | arpa-e.energy.gov | Washington, Dc, United States | ||
Venture capital firm focused on investing in clean tech sectors | sdtc.ca | Ottawa, Canada | ||
Scientific and technical information is managed and disseminated by OSTI.GOV. | osti.gov | Oak Ridge, United States | ||
Provider of innovation, science and economic development services | 1993 | ic.gc.ca | Ottawa, Canada |
Investor details for Terrestrial Energy
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of Terrestrial Energy
52 people are tracked at Terrestrial Energy (19 in leadership, 11 in board & advisors, 22 in team).
| Name | Role | Group |
|---|---|---|
Chris Popoff | Ex-Co-Founder | Leadership |
Simon Irish | CEO | Leadership |
Canon Bryan | Chief Financial Officer | Leadership |
Steven M. Millsap | General Counsel, Secretary And Chief Compliance Officer | Leadership |
Hugh MacDiarmid | Director | Leadership |
Fred Buckman | Director | Leadership |
David Hill | Director | Leadership |
Robin Rickman | Vice President Business Development | Leadership |
Dara H. | VP Of HR | Leadership |
Shauna Hollis (She/Her) | HR Business Partner | Leadership |
Tunggul Tobing Cpa | Vice President Finance | Leadership |
Bill Smith | Chief Operating Officer | Leadership |
P.eng. Darren Love | Engineering Director | Leadership |
Robert Ion | Licensing Director | Leadership |
David LeBlanc | President, CTO & Director | Leadership |
Maria Ivanova | R&d Director | Leadership |
Alexander Canon Bryan | Head Of Special Projects | Leadership |
Iftikhar Haque | Vice President, Nuclear Supply Chain | Leadership |
Patrick Chin | Director Of IT Services | Leadership |
William D. Johnson | Independent Director | Board & advisors |
32 more people are available in the full profile.
Complete people profiles for Terrestrial Energy
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
IPO & Listings of Terrestrial Energy
Terrestrial Energy is a publicly listed company on the NASDAQ with ticker symbol IMSR in USA, operating in the Utilities sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- Listed onNASDAQ: IMSR
- Listed entityTerrestrial Energy Inc.
- Exchange sectorUtilities
- ISINUS8814541020
- Share price$3.11 (+5.07% on the day) · 2026-10-13
- Market capitalisation$329.5M
- Price to earnings48.2
- EPS (diluted, trailing year)$-0.42
- Volume (last session)2,636,228
Timeline of Terrestrial Energy
3 dated milestones of Terrestrial Energy across 13 years, from founding to its latest funding, stage changes and deals.
- Founded Terrestrial Energy is founded.
- Funding First funding round of $670K.
- Funding Latest funding round, Series D, of $85K.
Web traffic of Terrestrial Energy
The website of Terrestrial Energy (terrestrialenergy.com) receives about 38.9K visits a month.
- Monthly visits38.9K
▲ 117.9% vs previous month
Websites whose visitors overlap most with Terrestrial Energy. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
finance.yahoo.com | finance.yahoo.com | 100% | #205 | – |
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Related news about Terrestrial Energy
Complete news archive for Terrestrial Energy
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Frequently Asked Questions about Terrestrial Energy
Terrestrial Energy was founded in 2013 and raised its 1st funding round 1 year after it was founded.
Terrestrial Energy is headquartered in Oakville, Canada. It is registered at Oakville, Ontario, Canada.
Simon Irish is the CEO of Terrestrial Energy, as recorded in our data.
Terrestrial Energy is a funded company, having raised a total of $117.72M across 18 funding rounds to date. The company's 1st funding round was a Series B of $15.16M, raised on Mar 2014.
Terrestrial Energy, founded in 2013 in Oakville, Canada, focuses on working in the energy sector, nuclear energy, hardware developer, reactors, nuclear fission, and small modular reactor. Developer of small modular reactor. The company is dedicated to excellence, innovation, and customer satisfaction, ensuring sustainable practices and long-term success in its sectors.
Yes, Terrestrial Energy is publicly traded on NASDAQ under the ticker symbol IMSR.
Terrestrial Energy has 4 investors. Key investors include Innovation, Science and Economic Development Canada, OSTI.GOV, ARPA-E, and Sustainable Development Technology Canada.
Terrestrial Energy operates through Terrestrial Energy Limited.