EtherealX Raises $20.5 Mn Series A to Build India’s First Fully Reusable Medium-Lift Launch Vehicle

Introduction

Bengaluru-based Ethereal Exploration Guild (EtherealX) has raised $20.5 million (₹170+ crore) in an oversubscribed Series A funding round, co-led by TDK Ventures and BIG Capital, with participation from Accel, Prosus, YourNest Venture Capital, BlueHill Capital, Campus Fund, and Riceberg Ventures. This milestone underscores the growing maturity of India’s spacetech ecosystem and sets the stage for EtherealX to achieve a bold technological vision: developing Razor Crest Mk-1, the country’s first fully reusable medium-lift launch vehicle. By targeting full-stage reusability, EtherealX positions itself as a potential challenger to global launch leaders such as SpaceX, while demonstrating that India can produce advanced, globally competitive launch technology.

Funding Round Details

The Series A round comes after EtherealX’s successful $5 million seed round in August 2024, led by YourNest Venture Capital, with participation from BIG Global Investments JSC, BlueHill Capital, Campus Fund, Golden Sparrow Ventures, and angel investors including Karan Bhagat, Yatin Shah (IIFL Wealth), Kiran Shetty, and Akhilesh Agarwal. With this Series A infusion, EtherealX’s valuation has increased 5.5x to $80.5 million, reflecting strong investor confidence in the startup’s technology and execution capabilities. The oversubscribed nature of the round also highlights the growing interest in India’s space startup ecosystem, particularly in companies pursuing deep reusability and medium-lift launch systems, a segment that has traditionally been dominated by global players.

Investors are attracted not only by the technical ambition but also by EtherealX’s rapid execution and demonstrated progress in developing proprietary engines and integrated launch systems in just a few years.

Founders and Vision

Founded in 2022 by Manu J. Nair (CEO), Shubhayu Sardar, and Prashanth Sharma, EtherealX brings together expertise in aerospace engineering, propulsion systems, and mission design. The founders have consistently emphasized deep reusability as the key to transforming orbital access economics.

Unlike incremental improvements in launch cost reduction, EtherealX aims to reuse both the booster and the upper stage, a technically challenging goal that, if achieved, could significantly reduce the cost per kilogram of payload to orbit. The startup’s approach combines rigorous in-house engineering with a long-term vision of establishing India as a globally competitive player in the medium-lift launch market.

Razor Crest Mk-1: India’s First Fully Reusable Medium-Lift Rocket

The flagship vehicle, Razor Crest Mk-1, represents the culmination of EtherealX’s efforts to develop a fully reusable launch platform capable of multiple orbital missions. Key features include:

• Up to 24.8 tonnes to Low Earth Orbit (LEO) in expendable mode.
• Around 8 tonnes to LEO in fully reusable configuration.
• Capability to deliver payloads to Geosynchronous Transfer Orbit (GTO) and Trans-Lunar Injection (TLI).

Unlike SpaceX’s Falcon 9, which primarily reuses the first-stage booster, EtherealX targets reusability across both stages, enabling unprecedented operational efficiency and cost savings. The startup is building a scalable engine and stage configuration, which will allow clustered engines on both stages for redundancy and reliability. This system design ensures that even with one engine failure, the rocket can complete its mission safely.

Proprietary Engines and Technological Edge

EtherealX has developed two proprietary rocket engines:

Pegasus (Upper-Stage Reusable Engine):

• 80 kN thrust, vacuum specific impulse (Isp) 323 s
• Uses a Full Flow Segregated Cooling Cycle (FFSCC)
• Features an in-house additively manufactured turbopump

Stallion (Booster Engine):

• 1.2 MN thrust, gas-generator cycle
• Sea-level specific impulse: 306 s

For Razor Crest Mk-1, nine Stallion engines will power the booster stage, while 15 Pegasus engines will drive the upper stage. This clustering approach ensures scalability, redundancy, and performance optimization—critical for both safety and mission success.

Infrastructure and Timelines

To support its ambitious roadmap, EtherealX operates Base 001, a rocket engine testing facility in Cuddalore, Tamil Nadu, focused on upper-stage engine qualification. The startup has also secured a 150-acre manufacturing and testing campus in Andhra Pradesh’s proposed Space City, expected to be operational by mid-2026. This facility will enable integrated engine and stage testing at scale, ensuring that the company can iterate rapidly and validate complex systems before commercial deployment.

Key milestones

• Engine hot-fire tests for Stallion and clustered Pegasus engines: mid-2026.
• Technology demonstration flight: Nov–Dec 2027.
• Commercial launches: end of 2028.

These timelines indicate EtherealX’s commitment to rapid execution, a factor that has drawn investor confidence and positioned the company as a credible player in the global launch industry.

Market Opportunity and Commercial Traction

The global space economy is projected to reach $1.8 trillion by 2035, driven by satellite constellations, Earth observation, defense, and deep-space missions. There is a growing demand among satellite operators for flexible, cost-effective, and reliable launch services beyond what SpaceX currently provides.

EtherealX aims to lower orbital transport costs to $500–$1,000 per kilogram, with long-term pricing potentially ranging between $350 and $2,000 per kilogram depending on reuse cadence and configuration. The startup has already signed $130 million in launch MoUs with international customers, including Japan’s Space BD and Taiwan’s TASA, and maintains collaboration agreements with ISRO, IN-SPACe, and other global satellite operators.

Team and Growth

Currently employing 67 people, EtherealX plans to scale its workforce to around 90 employees as it ramps up manufacturing, testing, and integration. The team brings together a mix of aerospace engineers, propulsion specialists, and mission planners, ensuring technical depth across all areas of the launch system.

Startups like EtherealX exemplify India’s shift from component suppliers and small launchers to globally competitive, reusable launch systems, supporting the country’s vision of growing its space economy from $8 billion to $45 billion over the next decade.

Conclusion

EtherealX’s ambitious roadmap, proprietary engines, and strategic partnerships position it as a potential game-changer for India’s space ecosystem. With plans for demonstration flights in 2027 and commercial launches by 2028, the company is poised to redefine orbital access economics and strengthen India’s presence in the global launch market. Razor Crest Mk-1 could become a benchmark for reusable medium-lift rockets globally, showcasing India’s capability in NewSpace innovation.

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