Transatomic power funding. Transatomic Power’s advanced molten salt reactor consumes spent nuclear fuel cleanly and completely, unlocking vast amounts of cheap, carbon-free energy. Transatomic Power was founded in 2011 by Dr. Sep 15, 2025 · Transatomic is a series A company based in Cambridge (United States), founded in 2010 by Leslie Dewan, Mark Massie and Russ Wilcox. But Leslie Dewan and a colleague have dared to invent a new type of nuclear reactor. Promising new designs for both fission and fusion nuclear power reactors rely on molten salt to play key roles, such as transferring heat out to produce electricity and to keep important metal components cool. [9] Potential neutron economy suggests that MSR may be able to exploit the neutron-poor thorium fuel cycle. S. In this study, we investigated the effects of helium gas entrainment on the neutronics behavior of the Transatomic Power Molten Salt Reactor (TAP MSR) core with consideration of the thermal expansion of the sparging gas and fuel salt under equilibrium and non-equilibrium core temperatures. The FT, referencing “one of the people”, said Founders Fund had committed funding to When Mark Massie and I started Transatomic in April 2011, the future of nuclear power was uncertain. GigaOm's mission is to make actionable, practical technology research accessible to everyone: We think ahead of the market. This chapter outlines the ways in which the Transatomic Power 1250 MWth molten salt reactor design takes advantage of its liquid fuel in order to address these challenges. Yet companies like Transatomic Power Inc. Despite this progress, the United States remained focused on light-water reactors (LWRs) for commercial use, primarily because of extensive previous operating experience with naval water-cooled reactors and early commercial pow Get information on funding, investors, industries, and more for Transatomic Power. in funding over 3 rounds. 5 million for its nuclear reactor technology that the company says will be safer and more efficient than In the global energy landscape, few topics have sparked as much enduring debate and innovation as nuclear power. Nuclear energy startup Transatomic Power has backed away from bold claims for its advanced reactor technology after an Essential stats, news, real-time insights on Transatomic Power. Nuclear reactors, like many other power plants, produce power by generating heat to create steam, which is then used to power a turbine. Transatomic Power’s design therefore builds on an established body of research and de nvironment. We at Transatomic Power are nuclear engineers with a new approach for electricity generation. Transatomic Power is the world’s leading technology innovator in the field of liquid fuel nuclear reactors. Find top employees, contact details and business statistics at RocketReach. The nuclear power industry has a reputation for resisting innovative changes. But when we finally spoke, I learned that her eight-year-old nuclear fusion startup, Transatomic Power Corporation (TPC), was winding down. Transatomic has raised $9. This article appears in the Winter 2024 issue of Energy Futures, the magazine of the MIT Energy Initiative. The new funding comes from Acadia Woods Partners, Peter Thiel's Founders Fund, and Swiss investor Daniel Aegerter of Armada Investment AG. NuScale Power Country: USA | Funding: $469. In one of the rare fundings for a nuclear energy startup, Transatomic Power picked up $2. At the time, there were only three advanced reactor design companies … So far, Transatomic has obtained $6 million in funding, including $2 million from venture capital firm Founders Fund (backers of Spotify, Airbnb, and SpaceX). Leslie Dewan, a nuclear engineer and co-founder of Transatomic Power, has built a new molten salt nuclear reactor that reuses nuclear waste and automatically shuts down if there's a power outage. However, it still wants its technology to play a role in the future of advanced nuclear reactors. D. Equipment development and testing was supported by the Transatomic Power Corporation. 1,536 likes · 2 talking about this. 23M in funding. Leslie Dewan and Mark Massie founded Transatomic Power in 2011, [1] and its board directors included E Ink Corporation co-founder Russ Wilcox. Transatomic Power is funded by 3 investors. Leslie Dewan is the Co-founder and CEO of Transatomic Power, a Boston-based nuclear energy startup. Founders Fund has invested $2 million in the company to get things moving. in nuclear engineering from MIT, with a research focus on computational nuclear materials. We interviewed one of our youngest speakers, nuclear engineer and CEO of Transatomic Power Leslie Dewan, about her views on the future of nuclear energy. The 77-megawatt reactor weighs 700 Previously, she was the CEO of Transatomic Power, a company that designed safer nuclear reactors that leave behind less waste than conventional designs. The company has 53 active competitors, including 16 funded and 3 that have exited. ant alloys. Use the PitchBook Platform to explore the full profile. MIT alumni Dr. TAP agreed to open-source its intellectual Dr. From 2011 to 2018, she was the CEO of Transatomic Power, a company that designed safer nuclear reactors that leave behind less waste than conventional designs. If playback doesn't begin shortly, try restarting your device. Nuclear Regulatory Commission. Transatomic Power, a developer of liquid fuel nuclear reactors, has received $2 million in seed funding from FF Science, an investment vehicle of Founders Fund. 5 million from investors that included Peter Thiel. Its top competitor s include companies like TerraPower, NuScale Power and Newcleo. 5M Transatomic Power is a nuclear reactor design company offering a waste-annihilating molten salt reactor. Funding: $469. See insights on Transatomic Power including office locations, competitors, revenue, financials, executives, subsidiaries and more at Craft. Transatomic Power Corporation (Massachusetts USA) Founded in 2010, Transatomic is the only company which has disclosed their funding amounts, 3 rounds totaling $5. IMPACT: Although TAP ceased business in 2018, this project demonstrated the applicability of ORNL tools to molten-salt technology research. Transatomic Power, an MIT spinout that drew wide attention and millions in funding, is shutting down almost two years after the firm backtracked on bold claims for its design of a molten-salt Transatomic Power Corporation, developing an advanced molten salt reactor that generates clean, safe, proliferation-resistant, low-cost nuclear power. Leslie Dewan and Mark Massie, graduates of the MIT Nuclear Engineering Department, and honorees of the TIME “ 30 Under 30,” Technology Review “35 Under 35,” Forbes “30 Under 30,” and National Geographic “Emerging Explorers. The funds will be used for bench-top lab testing and refinement of the company's designs and computer models. Department of Energy Nuclear Energy University Program. Find related and similar companies as well as employees by title and much more. Explore valuation, funding rounds, reviews. We started this company because we believe it is possible to power the world while helping it thrive. challenged these assumptions by proposing a new generation of nuclear technology designed to be safer, […] For nuclear energy to be a viable source of baseload power, new nuclear reactor designs must address existing concerns about waste storage by increasing fuel utilization and reducing overall waste production. transatomicpower. After running computer simulations, they saw potential in the technique and, together with entrepreneur Russ Wilcox, founded Transatomic Power in 2011. Compared to Dive into the research topics of 'Assessment of the Neutronic and Fuel Cycle Performance of the Transatomic Power Molten Salt Reactor Design'. Founders Fund and Daniel Aegerter are the most recent investors. Molten-salt reactors can run at high temperatures, yielding high thermal efficiency. 6M NuScale Power has developed small modular reactor NuScale Power Module (NPM) - that was the first to receive design approval from the U. Dewan came up with the name, a nod to the nuclear optimism of the 1950s and the transuranium elements that make nuclear power possible. The Salt Solution: In Transatomic Power’s reactor, molten salt containing radioactive material would circulate inside a reactor vessel (1). Essential stats, news, real-time insights on Transatomic Power. “We were feeling on top of the ant alloys. It operates as a Developer of small modular reactor. Despite this progress, the United States remained focused on light-water reactors (LWRs) for commercial use, primarily because of extensive previous operating experience with naval water-cooled reactors and early commercial pow 3 The Transatomic Power Molten Salt Reactor concept The TAP concept is a 1250 MWth MSR with a LiF-based uranium fuel salt [6]. MSRs can offer a high "specific power", (high power at low mass), as demonstrated by ARE. He has backed nuclear fusion start-up Helion, while Founders Fund supported Transatomic Power, which attempted to develop a molten salt reactor technology before winding down in 2018. Leslie received her Ph. Sep 25, 2018 · Transatomic Power, an MIT spinout that drew wide attention and millions in funding, is shutting down almost two years after the firm backtracked on bold claims for its design of a molten-salt Nov 7, 2025 · Transatomic Power is a nuclear reactor design company offering a waste-annihilating molten salt Transatomic Power is a nuclear reactor design company offering a waste-annihilating molten salt reactor. Transatomic Power was an American company that designed Generation IV nuclear reactors based on molten salt reactor (MSR) technology. The work also underlined the importance of validated state-of-the-art tools to perform an early design assessment of the validity and performance of a given advanced reactor design or associated fuel cycle. It will also add to efforts led by Maryland-based Centrus Energy to kick start Haleu production in the US. This concept uses configurable zirconium hydride (ZrH1. Funding Data Dive into Transatomic Power’s funding data, including significant investment rounds, funding trends, total capital raised, and key backers, to understand Transatomic Power’s investor confidence and growth trajectory. ” Ray Rothrock, an MIT nuclear engineer, emeritus General Partner at Venrock, and former Chair of the National Transatomic Power’s advanced molten salt reactor consumes spent nuclear fuel cleanly and completely, unlocking vast amounts of cheap, carbon-free energy. This reduces size, expense, and environmental impacts. 66) rods as the moderator while most MSR designs usually propose high-density reactor graphite. By employing The new funding comes from Acadia Woods Partners, Peter Thiel's Founders Fund, and Swiss investor Daniel Aegerter of Armada Investment AG. [2] Among its backers were the venture capital outfit Founders Fund, of which Peter Thiel is a partner Discovery Company profile page for Transatomic Power Corp. See Transatomic Power company profile and funding data. Transatomic’s CEO and co-founder Leslie Dewan, noted: “We haven’t been able to scale Discovery Company profile page for Transatomic Power Corp. 00 Million in revenue and 1 employees. The company is based in Cambridge, MA and is privately funded. Then, a 25 MWth ZrH-MSR proposed by Transatomic Power Corporation was selected to evaluate its steady-state characteristics due to its cost-effective and simplified design. Leslie Dewan, cofounder and chief executive officer of Transatomic Power. Based on the multi-group neutron diffusion theory and the subchannel thermal-hydraulics model, a steady-state analysis code for ZrH-MSR was developed and verified in this work. Next week's Scientific Forum will discuss how nuclear technology can help us achieve the Sustainable Development Goals by 2030. Transatomic Power's molten salt reactor could provide cheap and efficient power generation that uses spent fuel again. Transatomic Power Corporation, a Cambridge, MA company founded in 2011 by MIT nuclear engineering students Leslie Dewan and Mark Massie, claims to have designed a nuclear reactor that "can consume the spent nuclear fuel generated by commercial light water reactors" and be significantly more efficient than current designs making it profitable Transatomic Power, Cambridge. Transatomic is developing a new kind of molten-salt reactor designed to overcome the major barriers to nuclear power. Department of Energy) Transatomic Power is a company in Cambrige, MA that is currently working on the development of a newly designed nuclear reactor. Information on valuation, funding, cap tables, investors, and executives for Transatomic Power. including technical research,competitor monitor,market trends,company profile& stock symbol From the ARPA-E Energy Innovation Summit, Transatomic Power, developers of safe and clean atomic energy reactors, announced today that four industry veterans have joined its Technical Advisory Board: View Transatomic Power (www. Zirconium hydride can achieve the same degree of thermalization as graphite with a much smaller volume. com) location in Massachusetts, United States , revenue, industry and description. Thiel, the co-founder of PayPal and the first outside investor in Facebook, previously backed nuclear fusion start-up Helion, while Founders Fund supported Transatomic Power, which attempted to develop a molten salt reactor before closing down in 2018. Transatomic Power announced that it has raised $2 million in seed funding from FF Science, an investment vehicle of Founders Fund that was recently formed to back early-stage science investments. Our pioneering energy technology generates clean, safe and affordable nuclear power. Together they form a unique fingerprint. Here you'll find information about their funding, investors and team. including technical research,competitor monitor,market trends,company profile& stock symbol Transatomic Power is a Renewable Energy Semiconductor Manufacturing, Electricity, Oil & Gas, and Energy Production company located in Cambridge, Massachusetts with $1. US nuclear reactor startup Transatomic Power announced on 25 September that it is shutting down operations, after deciding that it can see no viable path to bringing its molten salt reactor designs to scale. In the wake of Fukushima, all bets for a nuclear renaissance were off, and starting a venture-funded advanced nuclear technology startup seemed like an unusual path, to say the very least. Traditional nuclear reactors have long been criticized for safety concerns, radioactive waste, and high capital costs. Source: Wikimedia Commons - courtesy of the U. Connect with decision makers, founders, investors. Transatomic Power Energy Production CleanTech Cambridge, MA $2 million Seed Earlier work was funded, in part, by the Transatomic Power Corporation and by the U. It solves four of the most pressing problems facing the nuclear industry: ecological stewardship, public safety, non-proliferation, and cost-efficiency. . NPM design is based on proven pressurized water reactor technology and was developed to power power plants, district heating, desalination and industrial hydrogen production. Their latest funding was raised on Feb 10, 2015 from a Seed round. [2] Dec 31, 2025 · Transatomic Power Country: USA | Funding: $5. kxpjuz, umbz, qy8nh, 5qfl7, rjaqb, kmi8p, 71uwux, lobois, s32yv7, yglhv,