🏆 Deal of the Week · KW 17/2026
Blue Energy raised USD 380 million in a Series C round; the company's valuation was not disclosed. The round was led by XI Capital. The raise will fund the development and commercialization of Blue Energy's grid-scale modular nuclear reactor architecture manufactured in shipyards.
Blue Energy — key deal facts
| Company | Blue Energy |
| Founded | 2023 |
| Headquarters | Washington, D.C., United States |
| Amount raised | USD 380m |
| Valuation | Valuation Remains Undisclosed |
| Round | Series C |
| Investors | The round was led by XI Capital with participation from At One Ventures, Engine Ventures, and Tamarack Global. |
| Sectors | Energy |
Who invested in Blue Energy?
XI Capital led the Series C, with participation from At One Ventures, Engine Ventures, and Tamarack Global. The investor syndicate spans dedicated climate and deep-tech venture funds, reflecting cross-sector conviction in advanced nuclear as a scalable clean-energy solution. The involvement of At One Ventures and Engine Ventures in particular signals strong alignment with Blue Energy's mission to decarbonize grid-scale power generation.
What does Blue Energy do?
Blue Energy designs modular, reactor-agnostic power plants built for centralized shipyard manufacturing, an approach intended to reduce nuclear construction costs and compress delivery timelines. Its core product is a prefabricated power plant architecture in which the reactor building is submerged in water, providing passive cooling and an additional safety margin. The company was founded in 2023 and is headquartered in Washington, D.C., United States. Blue Energy targets grid-scale deployment of next-generation nuclear reactors for utilities and large energy consumers seeking firm, low-carbon baseload power.
Blue Energy valuation & multiples
Blue Energy operates at the intersection of green tech and climate tech, developing modular nuclear infrastructure with characteristics comparable to advanced energy hardware businesses. European sector benchmarks for Greentech (Q1 2026) indicate EV/Sales multiples in the range of 6.06x–7.79x and EV/EBITDA multiples of 11.15x–14.34x. Further detail on valuation multiples relevant to the Greentech and nuclear energy sectors is available through the DealMatrix Platform.
Explore the benchmarks: Series C.
Frequently asked questions
How much did Blue Energy raise in its Series C?
Blue Energy raised USD 380 million in its Series C round, announced in April 2026.
What is Blue Energy's valuation?
Blue Energy's valuation was not disclosed in connection with this Series C round.
Who invested in Blue Energy?
The Series C was led by XI Capital, with At One Ventures, Engine Ventures, and Tamarack Global participating.
When was Blue Energy founded and where is it based?
Blue Energy was founded in 2023 and is headquartered in Washington, D.C., United States.
Source: original announcement — read the full report.