AEAntora Energy
antora.energy
HQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAAntora builds and deploys thermal energy storage to power always-on industrial operations with low-cost energy.
BEBloom Energy
bloomenergy.com
HQ: San Jose, California, USAPUBLIC SOURCEFounded: 2001PUBLIC SOURCEOwnership: Public (NYSE: BE), S&P 500 componentPUBLIC SOURCEBloom Energy makes solid oxide fuel cells that generate electricity on site for data centers, manufacturing and other commercial users.
EEEos Energy Enterprises
eose.com
HQ: —NO DATAFounded: 2008PUBLIC SOURCEFacilities: —NO DATAEos is accelerating the shift to clean energy with positively ingenious solutions that transform how the world stores power.
EEERock (Enchanted Rock)
erock.com
HQ: —NO DATAFounded: 2006COMPANY WEBSITEOwnership: PrivateCOMPANY WEBSITEERock (Enchanted Rock) provides electrical resiliency-as-a-service: onsite natural gas and cleaner-fuel microgrids that keep businesses, critical infrastructure and communities running during grid outages.
ETHQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAESS Tech is listed in Grid & Energy Solutions.
FEFervo Energy
fervoenergy.com
HQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAFervo Energy delivers 24/7 carbon-free energy through development of next-generation geothermal projects.
FHQ: —NO DATAFounded: —NO DATAOwnership: "A Siemens and AES company" (per company site)COMPANY WEBSITEFluence supplies grid-scale energy storage and cloud software for renewables and storage.
FEForm Energy
formenergy.com
HQ: Somerville, Massachusetts, USAPUBLIC SOURCEFounded: 2017PUBLIC SOURCEOwnership: Private (Series G $750M financing announced 2026)COMPANY WEBSITEForm Energy is an American company developing multi-day energy storage for the grid.
GVHQ: Cambridge, United StatesPUBLIC SOURCEFounded: 2023PUBLIC SOURCEFacilities: —NO DATAGE Vernova is accelerating the path to more reliable, affordable, and sustainable energy through our innovative portfolio of electrification and decarbonization technologies.
GHQ: Waukesha, United StatesPUBLIC SOURCEFounded: 1959COMPANY WEBSITEFacilities: —NO DATASince 1959, Generac Power Systems has been committed to building the most reliable, durable, efficient, and environmentally-friendly generators and power equipment.
HEHitachi Energy
hitachienergy.com
HQ: Zurich, SwitzerlandPUBLIC SOURCEFounded: 2021 name (formerly Hitachi ABB Power Grids)PUBLIC SOURCEOwnership: Subsidiary of Hitachi Ltd.PUBLIC SOURCEHitachi Energy is a Zurich-based energy technology company and subsidiary of Hitachi.
KPKairos Power
kairospower.com
HQ: Alameda, United StatesPUBLIC SOURCEFounded: 2016PUBLIC SOURCEFacilities: —NO DATABuilding the future of clean energy through iterative development and vertical integration.
LELevelTen Energy
leveltenenergy.com
HQ: —NO DATAFounded: —NO DATAFacilities: —NO DATALevelTen Energy connects buyers, sellers, and advisors on the world's largest clean energy marketplace.
MEMainspring Energy
mainspringenergy.com
HQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAPower generation for data centers, utilities, industrial & enterprise applications.
NPNuScale Power
nuscalepower.com
HQ: Corvallis, United StatesPUBLIC SOURCEFounded: 2007PUBLIC SOURCEFacilities: —NO DATAWe are the global leaders in SMR nuclear technology with our groundbreaking NuScale Power Module.
OHQ: Santa Clara, California, USAPUBLIC SOURCEFounded: 2013PUBLIC SOURCEOwnership: Public (NYSE: OKLO)PUBLIC SOURCEOklo is a NYSE-listed advanced nuclear company developing fast fission power plants, starting with its Aurora powerhouse.
SESiemens Energy
siemens-energy.com
HQ: Munich, GermanyPUBLIC SOURCEFounded: 2020PUBLIC SOURCEOwnership: Public (FWB: ENR), DAX componentPUBLIC SOURCESiemens Energy is a German energy technology company spun out of Siemens in 2020, covering power generation, grid technology and wind power through Siemens Gamesa.
SHQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAWe help asset owners, operators and stakeholders benefit from the full value of their energy portfolio by enabling the intelligent development, deployment, and operation of clean energy assets.
WEWärtsilä Energy
wartsila.com
HQ: —NO DATAFounded: —NO DATAFacilities: —NO DATAWe offer flexible engine power plants, optimisation technology, and services for the whole lifecycle of our installations.
XEHQ: GreenbeltPUBLIC SOURCEFounded: —NO DATAFacilities: —NO DATAX-energy is an advanced nuclear reactor & fuel company.
