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EtherealX

EtherealX (Ethereal Exploration Guild) is a Bengaluru-based private launch startup founded in 2022 by former ISRO engineers Manu J. Nair, Shubhayu Sardar, and Prashant Sharma. It is developing the Razor Crest Mk-1, billed as the world's first fully reusable medium-lift launch vehicle, along with in-house Pegasus (upper-stage) and Stallion (booster) rocket engines. The company has raised a roughly $20.5M Series A co-led by TDK Ventures and BIG Capital and reported around $130M in launch contracts.

launch providerINreusable launch vehiclemedium-liftrocket enginepropulsionetherealx.space
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Launches

Payloads in Orbit

Active Sats (reported)

Funding Raised

Products & Services

Razor Crest Mk-1

development
launch vehicle

Fully reusable medium-lift launch vehicle configurable in expendable, partially reusable, and fully reusable variants; ~24.8 tonnes to LEO expendable and ~8 tonnes fully reusable, with full booster and upper-stage recovery.

Pegasus

development
rocket engine

In-house upper-stage liquid rocket engine reported at ~80 kN thrust with ~323 s vacuum Isp, using a proprietary cooling cycle and additively manufactured turbopump; hot-fire testing targeted for 2026.

Stallion

development
rocket engine

In-house first-stage/booster liquid rocket engine reported at ~1.2 MN thrust, for the Razor Crest Mk-1.

Key Challenges

Hot-fire qualification of the in-house Pegasus and Stallion engines remains pending.Achieving full booster and upper-stage reusability, a milestone not yet demonstrated by most established players.Capital intensity of medium-lift launch development against a 2027 first-launch timeline.
Roadmap
Engine hot-fire tests (Pegasus upper-stage and Stallion booster)2026
in progress
First launch of Razor Crest Mk-12027
planned
Event Timeline (0 events)

No events recorded.