Ethereal Exploration Guild, an Indian area tech higher often known as EtherealX, has climbed 5.5x in valuation to $80.5 million after its newest funding spherical. The startup is growing a launch car designed to be absolutely reusable and is readying engine hot-fire exams forward of its first know-how demonstration flight, deliberate for 2027.
The Bengaluru-based firm confirms that it closed an oversubscribed $20.5 million Sequence A spherical led by TDK Ventures and BIG Capital, as TechCrunch reported earlier. Accel, Prosus, YourNest, BlueHill, Campus Fund, and Riceberg Ventures additionally participated, EtherealX stated. The increase follows a $5 million seed round in August 2024 that valued the startup at $14.6 million.
As India pushes to mature its area ecosystem past small launchers and element contracts — concentrating on development in its area economic system to $45 billion from $8 billion over the subsequent decade — EtherealX is among the many startups drawing consideration.
Satellite tv for pc operators worldwide are searching for extra launch capability and scheduling flexibility in a market the place SpaceX’s Falcon 9 has set the benchmark for pricing and cadence. EtherealX is aiming for that area with its absolutely reusable car designed to return each the booster and higher stage. That’s an strategy that, if confirmed, may reduce per-launch prices and enhance flight frequency with out counting on a local constellation to maintain rockets absolutely booked.
EtherealX is growing two engines in-house: the 80-kilonewton “Pegasus” upper-stage engine and the 1.2-meganewton “Stallion” booster engine, with hot-fire exams focused for June–July. Thrust, measured in kilonewtons and meganewtons, signifies how a lot lifting power an engine can generate.
The startup is concentrating on a November–December 2027 launch window for a know-how demonstration car, forward of economic missions anticipated to start towards the top of 2028, co-founder and CEO Manu J. Nair stated in an interview.
Rocket engineers additionally monitor particular impulse, a extensively used proxy for gas effectivity, which — together with thrust — helps decide how a lot payload a car can carry for a given quantity of propellant.
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The Pegasus engine produces 323 seconds of vacuum-specific impulse and makes use of what the startup describes as a proprietary “full-flow segregated cooling cycle.” The engine integrates an in-house additively manufactured turbopump. Moreover, the Stallion booster engine makes use of a gas-generator cycle and delivers 306 seconds of sea-level particular impulse.
Nair instructed TechCrunch that EtherealX plans to cluster a number of engines per stage for its important medium-lift car, known as Razor Crest Mk-1, with 9 Stallion engines on the booster and 15 Pegasus engines on the higher stage.
For comparability, SpaceX’s Falcon 9 primarily reuses its first-stage booster whereas expending the higher stage. EtherealX is concentrating on deeper reusability by designing its car to return each the booster and the higher stage.
EtherealX’s car goals to hold as much as 24.8 tons in an expendable configuration, 22.8 tons partially reusable, and about 8 tons when absolutely reusable. The startup is concentrating on pricing of $350 to $2,000 per kilogram over time, Nair stated, relying on configuration and cadence.
To assist growth, EtherealX operates a rocket engine take a look at web site within the southern Indian state of Tamil Nadu, often known as Base 001, which Nair stated is concentrated on upper-stage engine qualification. The startup has additionally secured a 150-acre manufacturing and testing campus in Andhra Pradesh’s proposed area metropolis that it expects to change into operational from mid-2026 for built-in engine and stage testing.
EtherealX has signed launch memoranda of understanding totaling round $130 million with clients, together with Japan’s House BD and Taiwan’s area company, TASA, Nair stated, because it seeks early industrial demand forward of its first demonstration flight.
The newest funding will probably be used to finish flight qualification of the Stallion booster engine and to run clustered-firing exams of the Pegasus upper-stage engines, Nair stated. To assist that ramp-up, the startup at present employs 67 individuals and expects to develop to about 90 over the subsequent two months because it will increase manufacturing capability and strikes to the next testing cadence forward of its first demonstration flight.
