Viraj Aero

Active · Next generation gas turbines for data centers & aviation

YC F26

Website YC profile

Why it ranks

How the rank works

4signal of 100 · rising 4

went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Competitors

Voxel EnergyShared: grid connection, data center, energyYC W26Startup →AI

AstroShared: data center, energy, powerYC W25New York CityStartup →AI

MarengoShared: data center, energyYC S26San FranciscoStartup →AI

FerveretShared: data center, energy, waterYC S21San FranciscoStartup →Other

MadroneShared: data center, water, coolYC X26San FranciscoStartup →Other

Emerald AIShared: data center, power, gridStartup →Other

CrusoeShared: data centerStartup →

Companies closest to Viraj Aero
Company	Category	Status	Program
Voxel EnergyShared: grid connection, data center, energyYC W26ActiveAI	AI	Active	YCW26
AstroShared: data center, energy, powerYC W25ActiveAI	AI	Active	YCW25
MarengoShared: data center, energyYC S26ActiveAI	AI	Active	YCS26
FerveretShared: data center, energy, waterYC S21ActiveAI	AI	Active	YCS21
MadroneShared: data center, water, coolYC X26ActiveOther	Other	Active	YCX26
Emerald AInot in a program hereShared: data center, power, gridElsewhereOther	Other	Elsewhere
Crusoenot in a program hereShared: data centerElsewhereOther	Other	Elsewhere

Adjacent

Other

AtomarineShared: data center, energy, coolingYC S26San FranciscoStartup →Other

NODI EnergyShared: data center, energy, powerYC X25LondonStartup →Other

Savion AerospaceShared: natural gas, aviation, system500 Global GA 24United StatesStartup →AI

Liquid EnergyShared: data center, energy, powerYC F26WaterlooStartup →Other

Ethos Space ResourcesShared: data center, aerospace, energyYC S26Los AngelesStartup →

Companies next to Viraj Aero
Company	Category	Status	Program
AtomarineShared: data center, energy, coolingYC S26ActiveOther	Other	Active	YCS26
NODI EnergyShared: data center, energy, powerYC X25ActiveOther	Other	Active	YCX25
Savion AerospaceShared: natural gas, aviation, system500 Global GA 24 +1Not statedOther	Other	Not stated	500 Global +1GA 24
Liquid EnergyShared: data center, energy, powerYC F26ActiveAI	AI	Active	YCF26
Ethos Space ResourcesShared: data center, aerospace, energyYC S26ActiveOther	Other	Active	YCS26

Also from F26 in AI

All of F26

Degla IncThe fully autonomous intelligence layer in the sky.YC F26San FranciscoStartup →AI

Aikido TechnologiesClean marine AI datacentersYC F26San FranciscoStartup →AI

AilitElectrifying North American freight rail with swappable batteries.YC F26San FranciscoStartup →AI

antimattrvoice-first hardware interface for human-agent interactionYC F26San FranciscoStartup →AI

Applied KineticsAI-native manufacturing for data center and energy projectsYC F26San FranciscoStartup →AI

ChemPilot.aiDiscover novel defense related materials/molecules.YC F26San FranciscoStartup →

Company	Category	Status
Degla IncThe fully autonomous intelligence layer in the sky.team of 2ActiveAI	AI	Active
Aikido TechnologiesClean marine AI datacentersteam of 5ActiveAI, Devtools	AI, Devtools	Active
AilitElectrifying North American freight rail with swappable batteries.team of 6ActiveAI	AI	Active
antimattrvoice-first hardware interface for human-agent interactionteam of 2ActiveAI	AI	Active
Applied KineticsAI-native manufacturing for data center and energy projectsteam of 2ActiveAI	AI	Active
ChemPilot.aiDiscover novel defense related materials/molecules.team of 3ActiveAI	AI	Active

Founders

Joseph RissonFounder/CEO
Mathilde BOUILLOUXFounder/-

About Viraj Aero

Viraj Aero builds gas turbines that deliver both power and cooling water for data centers. It needs no grid connection and no water pipeline. Burning natural gas already produces water. Our patented system captures that water from the exhaust. Part of it cools the data center. The rest is turned into steam and injected back into the turbine. That gives up to 40% more power from the same fuel (cheaper compute) and cuts NOx emissions by up to 99%, which cuts permit approvals from years to weeks. We're building a genset around our first-of-its-kind gas turbine. It fits in a 10-foot container and runs anywhere, even in the desert. That matters because two-thirds of new data centers are being built in water-stressed regions. We first built this steam-injected turbine for aircraft, where carrying water tanks isn't an option and efficiency is critical. We're currently integrating our full-scale prototype into an aircraft. The team comes from GE, Rolls-Royce and Formula 1, and we're already working with Safran, one of the world's largest aircraft engine manufacturers.

YC batch: F26 · Fall 2026
Status, per YC: Active
Category: AI
Founded: 2024
Checked: 7h ago

YC tags: Hard Tech, Energy, Aerospace, AI