Zeno Power
- Company typePrivate
- Founded2018
- HeadquartersWashington, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
Zeno Power firmographics
Firmographics- Name
- Zeno Power
- Legal name
- Zeno Power
- Website
- https://zenopower.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Ownership category
- akta.pro rank
Zeno Power industry classification
Industry- Product category
- Nuclear Power Systems
- NAICS
- Nuclear Electric Power Generation (221113), Turbine and Turbine Generator Set Units Manufacturing (333611), Electric Power Generation (22111)
- SIC
- Motors & Generators (3621), Engines & Turbines (3510), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Gen III/III+ Reactor Systems & Components (EUAKADAB)
- akta.pro secondary industries
- TES Systems Integration, Controls & Optimization (TES EMS, Controls, Dispatch) (EUAFANAK), TES Components & Balance-of-Plant (Heat Exchangers, Tanks, Insulation, Pumps, Valves) (EUAFANAL)
Keywords
Where Zeno Power is headquartered
LocationHeadquarters
- HQ city
- Washington
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Zeno Power business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Infrastructure, Personnel, Supply Chain, Operations, Marketing or Sales
Revenue model
- Government RPS Contracts: Zeno Power secures multi-million dollar contracts from U.S. government agencies (NASA, Department of Defense, U.S. Navy, U.S. Space Force) for development and delivery of nuclear battery systems. Contracts include the $15M NASA Tipping Point award, $7.5M DoD DEPTHS contract, and additional contracts exceeding $60M total. Revenue is earned through milestone-based delivery of systems over multi-year periods.
- Commercial Space and Maritime RPS Sales: Future revenue anticipated from commercial space companies (lunar landers, rovers) and maritime infrastructure operators purchasing Zeno's nuclear batteries. Company targets deliveries beginning 2027 with expansion into seabed telecommunications, deep-sea mining, and commercial space markets.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom government contract pricing — no public list pricing available |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Zeno Power product offering
Product offeringCore offering
Zeno Power designs, develops, and manufactures radioisotope power systems (RPS), also known as nuclear batteries, that convert heat from decaying radioisotopes into continuous electrical power and thermal energy. The product portfolio includes the Radioisotope Stirling Generator (RSG), the Radioisotope Thermoelectric Generator (RTG), and the Radioisotope Heater Unit (RHU), all fueled by strontium-90 or americium-241 and engineered to deliver 5+ years of reliable power in extreme environments including the lunar surface, seabed, Arctic, and deep space.
Product overview
Zeno Power builds a portfolio of nuclear battery systems (also known as radioisotope power systems or RPSs) that convert heat from decaying radioisotopes into continuous electrical power and thermal energy. The product line includes three distinct systems: the Radioisotope Stirling Generator (RSG) using Stirling engine conversion for 15-100s Watts electric output, the Radioisotope Thermoelectric Generator (RTG) using solid-state thermoelectrics for 1-100s Watts electric output, and the Radioisotope Heater Unit (RHU) providing less than 10 Watts thermal for direct heating applications. All systems can utilize strontium-90 (for maritime/seabed applications) or americium-241 (for space applications) as fuel. The systems are designed to deliver 5+ years of continuous power in extreme environments from the seabed to deep space.
Differentiator
Problem solved
Functional benefit
Products and services
- Radioisotope Stirling Generator (RSG) Nuclear battery system that converts heat from radioisotope decay into electricity using a Stirling engine. Produces 15 to 100s of watts electric with a planned lifespan of 5+ years. Can run on strontium-90 or americium-241 fuel. Designed for NASA lunar surface missions under the Harmonia program and DoD seabed applications.
- Radioisotope Thermoelectric Generator (RTG) Nuclear battery system that converts heat from radioisotope decay into electricity using solid-state thermoelectric materials with no moving parts. Produces 1 to 100s of watts electric. Designed with a novel fuel and shielding system to deliver high specific power from strontium-90 or americium-241 for maritime, space, and remote terrestrial applications.
- Radioisotope Heater Unit (RHU) Compact nuclear heating device that provides less than 10 watts of thermal output via heat transfer through conduction. Designed for instruments, components, and systems requiring sustained thermal management. Uses americium-241 fuel in superalloy containment for space missions requiring direct heating.
Quantifiable outcome
- 3.5x power output over original specification for the Harmonia RSG
- +4 more outcomes
Companies that use Zeno Power
Customer profileNamed customers6 records
Segments4 records
Ideal customer profiles3 records
Zeno Power technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Zeno Power partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core, minor and flagship.
- NorthStarcoreLease agreement with NorthStar to restore specialized hot cell infrastructure at Vallecitos Nuclear Center in Sunol, California. NorthStar, a leader in nuclear decommissioning, is preserving hot cell facilities at the historic site (America's first privately owned nuclear power plant) for Zeno to produce nuclear batteries. NorthStar's ongoing decommissioning work continues across the broader site in parallel with Zeno's manufacturing activities.
- Argonne National LaboratoryminorZeno Power Systems awarded GAIN (Gateway for Accelerated Innovation in Nuclear) voucher to collaborate with Argonne in testing a new chemical separation method for recovering strontium-90 from used nuclear fuel. Project supported by DOE's Office of Nuclear Energy through the GAIN initiative.
- OranocoreMulti-million dollar strategic agreement granting Zeno Power priority access to large quantities of americium-241 (Am-241) per year from Orano's La Hague used nuclear fuel recycling site in Normandy, France. Am-241 will fuel Zeno's space nuclear batteries for lunar missions. Collaboration builds on feasibility study conducted since 2022. Americium-241 has a 430+ year half-life, making it uniquely suited for long-duration space power. Orano recovers Am-241 from used nuclear fuel processed at its facility.
- iSpace-U.S.coreJoint development agreement to enable lunar missions to survive the harsh lunar night using Zeno's nuclear batteries. Companies are targeting a demonstration mission as early as 2027 to validate the capability on the lunar surface.
- U.S. Department of Energy / Oak Ridge Office of Environmental ManagementflagshipPublic-private partnership to recycle legacy Sr-90 radioisotope power system (BUP-500, a 1986-era generator storing over 1 million curies of Sr-90 from Cold War defense waste) into fuel for Zeno's first 10+ new RPS units. DOE's theme is 'Reduce, Recycle, and Revitalize.' Processed material transported to Westinghouse's commercial radiological facility for heat source fabrication.
- United Cleanup Oak Ridge (UCOR)coreDOE's cleanup contractor UCOR is a key partner in disassembling the BUP-500 legacy RPS and processing the Sr-90 fuel for reuse in Zeno's new systems. UCOR is DOE's primary contractor for environmental cleanup at Oak Ridge.
- Westinghouse Electric CompanycoreZeno selected Westinghouse to process radioisotopes and fabricate heat sources — the core building block for its radioisotope power systems. Westinghouse brings decades of experience handling radioisotope materials and supporting R&D and demonstration of novel nuclear technologies through material and chemistry evaluations. Fabrication occurs at Westinghouse's commercial radiological facility.
- Sunpower Inc.coreDeveloping and integrating the Stirling convertor in Zeno's RPS. Partner on both the DoD DEPTHS seabed program and the NASA Harmonia lunar program. Sunpower's Stirling convertor technology is key to Zeno's power conversion efficiency.
- NASAflagshipNASA awarded Zeno Power a $15 million Tipping Point award to lead a team developing an americium-241 radioisotope Stirling generator (Harmonia RSG) for lunar surface missions. NASA partnership also includes collaboration with NASA Glenn Research Center and NASA Marshall Flight Center. Goal is flight-ready technology demonstration by 2027 for the Artemis program.
- Blue OrigincoreBlue Origin is a key partner on both the NASA Harmonia program and the DoD DEPTHS program. For Harmonia, Blue Origin collaborates with Zeno and NASA Glenn Research Center to scale and optimize Stirling convertor integration. For DEPTHS, Blue Origin develops and integrates the Stirling convertor in the seabed RPS.
- Intuitive MachinescorePart of the Harmonia NASA Tipping Point team. Intuitive Machines will collaborate on integration of the RSG with lunar landers for missions targeting survival through the lunar night. Zeno and Intuitive Machines are targeting demonstration missions as early as 2027.
Scale indicators7 records
Recent moves7 records
Expansion highlights5 records
Zeno Power competitors and assessment
Company assessmentDirect peers
- Ultra Safe Nuclear Corporation: USNC develops advanced nuclear energy technologies including micro modular reactors (MMRs) and high-temperature gas-cooled reactor fuel for space and terrestrial applications. Directly comparable as a deep tech nuclear power company pursuing both space nuclear power and broader advanced reactor markets with government customers.
- Space Nuclear Power (Orano subsidiary): Space Nuclear Power is Orano's dedicated subsidiary developing radioisotope power systems for space applications, using Am-241 fuel recovered from nuclear recycling. The most direct competitor to Zeno's space RPS business, with similar isotope strategy and European recycling supply chain backing.
Broad incumbents
- Westinghouse Electric Company: Westinghouse is a major incumbent nuclear technology company that fabricates Zeno's heat sources as a partner but also develops its own nuclear fuel and reactor technologies. Comparable as an established nuclear industry player with deep NRC, DOE, and commercial nuclear relationships across the value chain.
- BWX Technologies: BWX Technologies manufactures nuclear components and fuel, including for U.S. Navy submarines and surface ships, and has capabilities relevant to radioisotope and advanced reactor systems. Comparable as an established nuclear manufacturer serving defense and government customers with deep NRC and DOE relationships.
- Framatome: Framatome is a major global nuclear reactor and fuel services company, sister entity to Orano (Zeno's Am-241 supplier). Comparable as a large nuclear industry player with deep expertise in fuel cycle, isotope handling, and government/defense nuclear customers in both U.S. and European markets.
- General Atomics: General Atomics operates across nuclear technologies (including TRIGA reactors and fusion research), defense (Predator/Reaper drones), and energy. Comparable as a nuclear technology incumbent serving DoD and DOE with deep engineering capabilities in advanced nuclear systems including isotope-based power concepts.
- Teledyne Energy Systems: Teledyne Energy Systems (a Teledyne Technologies subsidiary) manufactures thermoelectric generators, hydrogen generators, and energy systems including legacy RTG technology used in NASA missions. Comparable as a manufacturer of thermoelectric and specialty power conversion systems for space and defense applications.
- Aerojet Rocketdyne (L3Harris): L3Harris (following acquisition of Aerojet Rocketdyne) is a major defense and space propulsion and power systems company with historical involvement in nuclear thermal propulsion and space power concepts. Comparable as a large aerospace prime with relevant nuclear thermal and space power engineering capabilities.
- Northrop Grumman: Northrop Grumman is a major defense prime that has been involved in space nuclear systems, including concepts for nuclear thermal propulsion and space-based power. Comparable as a large defense/space systems integrator that could partner with or compete against Zeno on government nuclear power programs.
Emerging players
- Intuitive Machines: Intuitive Machines is a commercial lunar lander company and Zeno's integration partner on the Harmonia NASA Tipping Point program. Comparable as an emerging commercial space company addressing the same lunar night survival problem, with overlapping customer relationships (NASA, DoD) and mission profiles.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Zeno Power social profiles
Digital presenceZeno Power financial estimates
Financial estimateRevenue estimate
Valuation estimate
Zeno Power leadership team
Management profileNumber of profiles
Profiles12 records
Zeno Power funding detail
Funding detailFunding overview
Funding rounds7 records
Investors20 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Zeno Power M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Zeno Power
What does Zeno Power do?
Zeno Power designs, develops, and manufactures radioisotope power systems (RPS), also known as nuclear batteries, that convert heat from decaying radioisotopes into continuous electrical power and thermal energy. The product portfolio includes the Radioisotope Stirling Generator (RSG), the Radioisotope Thermoelectric Generator (RTG), and the Radioisotope Heater Unit (RHU), all fueled by strontium-90 or americium-241 and engineered to deliver 5+ years of reliable power in extreme environments including the lunar surface, seabed, Arctic, and deep space.
Is Zeno Power a public or private company?
Zeno Power is a private company. It is classified as venture growth investor backed and is currently operating.
When was Zeno Power founded?
Zeno Power was founded in 2018. It employs 51 to 100 people.
Where is Zeno Power based?
Zeno Power is headquartered in Washington, United States, in the North America region.
How does Zeno Power make money?
Two revenue lines are on record. Government RPS Contracts are the primary driver. The others are commercial Space and Maritime RPS Sales.
Who are Zeno Power's main competitors?
Direct peers on record are Ultra Safe Nuclear Corporation and Space Nuclear Power (Orano subsidiary). Broad incumbents are Westinghouse Electric Company, BWX Technologies, Framatome, General Atomics, Teledyne Energy Systems, Aerojet Rocketdyne (L3Harris) and Northrop Grumman. Intuitive Machines is listed as an emerging player.
Does Zeno Power have an API?
No public API is recorded for Zeno Power.
What industry is Zeno Power in?
Zeno Power's product category is Nuclear Power Systems. Its primary akta.pro industry code is EUAKADAB, Gen III/III+ Reactor Systems & Components, with a secondary code of EUAFANAK, TES Systems Integration, Controls & Optimization (TES EMS, Controls, Dispatch). Its NAICS code is 221113 and its SIC code is 3621.