The Rice Alliance for Technology and Entrepreneurship has named the 100 energy technology ventures that will convene next month at the 22nd annual Rice Alliance Energy Tech Venture Forum, as part of the second annual Houston Energy and Climate Startup Week.

Half of the startups, which hail from nine countries and 19 states, will pitch during the event, which culminates in the annual recognition of the “Most Promising Companies." The 12 companies that were named to Class 5 of the Rice Alliance Clean Energy Accelerator will present during Demo Day to wrap up their 10-week program.

In addition to pitches, the event will also host keynotes from Arjun Murti, partner of energy macro and policy at Veriten, and Susan Schofer, partner at HAX and chief science officer at SOSV. Panels will focus on corporate innovation and institutional venture capital. Attendees can also participate in one-on-one office hours with founders and investors.

The forum will take place Sept. 18 at Rice University’s Jones Graduate School of Business.

The 2025 presenting companies include:

• Aeromine Technologies
• AlumaPower
• Ammobia
• Aqua-Cell Energy
• Aquafortus
• Aquora Biosystems
• Arculus Solutions
• Artemis Production Solutions
• AtmoSpark Technologies
• AtoMe
• Badwater Alchemy
• C+UP
• Carbon Blade
• Circul8 Energy & Environment
• CO2 Lock
• Direct C
• DirectH2
• Ekona Power
• Exum Instruments
• Fathom Storage
• Flyscan Systems
• Geokiln Energy Innovation
• Glint Solar
• Hive Autonomy
• Horne Technologies
• Hydrogenious LOHC Maritime
• Innowind Energy Solutions
• Iron IQ
• Kewazo
• LiNova Energy
• Lukera Energy
• Lydian
• Mcatalysis
• Metal Light
• Mithril Minerals
• Moment Energy
• Moonshot Hydrogen
• Muon Vision
• PolyQor
• Polystyvert dba UpSolv
• Precision Additive
• RapiCure Solutions
• Resollant
• SiriNor
• Skyven Technologies
• Sperra
• SpiroPak
• Sweetch Energy
• Teverra
• Utility Global
• Xplorobot

Companies participating in office hours include:

• Active Surfaces
• Advanced Reactor Technologies
• Advanced Thermovoltaic Systems
• Ai Driller
• Airbridge
• Airworks Compressors
• Austere Environmental
• Brint Tech
• CarbonX Solutions
• Cavern Energy Storage
• Celadyne Technologies
• CERT Systems
• CubeNexus
• Deep Anchor Solutions
• Ellexco
• Emerald Battery Labs
• Equipt.ai
• FAST Metals
• FieldMesh
• FlowCellutions
• Fluidsdata
• GrapheneTX
• GS VORTEX SYSTEMS
• Installer
• Kanin Energy
• MacroCycle Technologies
• Modular MOPU
• NANOBORNE
• NetForwards
• Oxylus Energy
• PetroBricks
• PHNXX
• RASMAG Energy
• RedShift Energy
• RENASYS
• RenewCO2
• Resonantia Diagnostics
• Respire Energy
• Safety Radar
• SeaStock
• Secant Fuel
• SolGrapH
• Stratos Perception
• Terraflow Energy
• Think Energy Holdings
• Turnover Labs
• Utiltyx
• Zenthos Energy

Find information about the full day of events here, or click here to register.