Bellatrix Aerospace builds propulsion systems and orbital mobility hardware that help satellites move, maneuver, and stay useful in orbit. The Bengaluru-based company has raised $20 Mn in a Pre-Series B round led by Cactus Partners as satellite operators look for cleaner, lighter, and easier-to-handle propulsion options than older fuel-heavy setups. Founded in 2015 by Rohan Ganapathy and Yashas Karanam, the company now wants to turn years of R&D and flight qualification into repeatable customer deployments.
That’s the hard part. Deeptech startups can get attention with prototypes. They win business only when they can manufacture hardware reliably and on schedule. At volume.
What does Bellatrix Aerospace build?
Bellatrix Aerospace makes satellite propulsion hardware across multiple mission classes. Its lineup includes Arka Hall-effect thrusters for electric propulsion and Rudra green propulsion systems as a less toxic alternative to hydrazine. It also makes Jal microwave plasma thrusters that use water as propellant, nano-satellite propulsion units, and Pushpak, an orbital transfer vehicle that can carry small satellites after launch and place them into their intended orbits.
For a customer, the workflow is straightforward. A satellite maker first chooses the propulsion architecture based on mission profile say, long-duration station-keeping, orbit raising, collision avoidance, de-orbiting, or small-sat constellation phasing. Bellatrix then provides the propulsion subsystem that gets integrated into the spacecraft. In Pushpak’s case, it offers a transport platform that can deploy CubeSats and small satellites weighing up to 750 kg with up to 7 km/s delta-v.
The product stack is unusually broad for an Indian spacetech startup. Arka spans power classes from 50 W to 5 kW and is built for longer-life electric propulsion missions. Rudra comes in variants from 1 N to 100 N and is aimed at operators that still want higher-thrust maneuvering without the handling pain of conventional hydrazine systems. Jal is the weird one — in a good way. It uses water and targets GEO-class missions where reliability, lifetime, and fuel economics matter a lot.
Bellatrix is also trying to remove a lot of ugly manual work from satellite operations. Older propulsion approaches can mean toxic-fuel handling and heavier spacecraft. They can also slow turnaround and tighten operational constraints. Bellatrix’s nano-thruster design is pitched as a one-piece assembly with plug-and-play integration, while its green and electric systems are built around easier handling, longer mission life, and lower mass. It still isn’t simple.
Who founded Bellatrix Aerospace and why did they start it?
A student idea that refused to stay small
Rohan Ganapathy didn’t start out trying to build a venture-backed spacetech company. He was an aeronautical engineering student at Hindustan College in Coimbatore when, in 2012, he began working on a propulsion concept that used water as fuel. He later brought in family friend Yashas Karanam then still in high school in Mysore — and the two pushed the project far enough to win early backing after A.P.J. Abdul Kalam noticed the work and helped open doors to a first grant from JSW Steel.
That origin matters because Bellatrix wasn’t born in a polished lab with institutional support. The founders started in a small shed in Coimbatore and ran about 130 experiments before they got the concept right. They learned the brutal rule of space hardware early: if it fails in orbit, nobody’s going up there to fix it. Bellatrix was formally founded in 2015, and later moved into Bengaluru for a stronger R&D base.
Why the founders actually fit this market
Ganapathy is the technical spine of the company CEO and CTO, with propulsion work at the core of Bellatrix from day 1. Karanam grew into the business and operations side as cofounder and COO. That’s a useful split for a startup selling hard, qualification-heavy aerospace systems rather than software demos.
They weren’t serial founders. They were obsessives in a sector where domain obsession counts for more than startup theatre.
Their credibility now comes less from pedigree and more from the fact that Bellatrix has been building in propulsion for over a decade. It was among the first in India to test a privately built plasma thruster using water as fuel and to create a green alternative to hydrazine-based propulsion. That’s the sort of technical wedge investors care about in spacetech.
Early signals, operating muscle, and the new round
Bellatrix isn’t at the whiteboard stage anymore. Its core technologies have been flight-qualified, it’s working on active customer programs, and its applications span commercial satellite operators, aerospace companies, and Indian government agencies including ISRO and DRDO. By late 2025, the company had grown from that original shed to more than 40,000 square feet across 3 Bengaluru locations. It had reported close to $1 Mn in FY25 operational revenue while targeting 4x growth in FY26.
The new money is sizable for a propulsion specialist. Bellatrix has raised $20 Mn in a Pre-Series B round led by Cactus Partners. Hero Investment Office, 35 North Ventures, Indusbridge Ventures, and Monarch Holdings joined the cap table. Existing investors Inflexor Ventures, Pavestone VC, GrowX, Startup Xseed, and Survam Partners also participated again. With this round, Bellatrix has secured about $31 Mn since inception.
The company will use the capital to expand manufacturing facilities and scale high-throughput production lines. It will also support active customer programs and strengthen operations. This is the test.
Where Bellatrix sits against Skyroot, Agnikul, Dhruva, and SatSure
Here’s the part a lot of startup coverage blurs: Bellatrix doesn’t compete with all Indian spacetech startups in the same way. Skyroot and Agnikul are building launch vehicles. Dhruva Space sells full-stack satellite platforms and earth stations. It also offers launch-linked services. SatSure is an Earth observation and decision-intelligence company that has pushed upstream through its satellite arm. Bellatrix, by contrast, is focused on what happens after a payload gets to space — orbit raising, station-keeping, maneuvering, transfer, and de-orbit capability.
That distinction is strategic. Launch startups fight on access to orbit. EO companies fight on data and analytics. Bellatrix is fighting on propulsion IP, system efficiency, safety, and mission flexibility. Its advantage is that it isn’t trying to be a full-stack everything-company. It’s building a picks-and-shovels business for the satellite economy. Those businesses can get sticky if the hardware works.
Why does this Bellatrix Aerospace funding round matter?
Because flight qualification is only half the story.
Bellatrix has already crossed the science-project barrier. The challenge now is turning qualified propulsion systems into dependable manufacturing output. Satellite operators don’t just want a clever thruster. They want parts delivered on time and integrated cleanly. They also want support across mission cycles. That’s why this round is less about invention and more about industrialization.
Ganapathy put it plainly: “Having successfully flight-qualified our core technologies, we are now focused on building a repeatable, reliable, and world-class production propulsion system.” He also said the company wants to increase annual production capacity sharply so it can stay the trusted propulsion partner for operators buying at scale.
That’s why Cactus Partners leading this round matters. Investors aren’t just backing an R&D roadmap here. They’re backing the bet that Bellatrix can become manufacturing-grade infrastructure for satellite missions.
Why is India betting bigger on spacetech now?
The timing isn’t random. India’s space economy was pegged at $8.4 Bn in 2022 and is targeting $44 Bn by 2033, with the country aiming for about 8% of the global market over that period. That kind of jump doesn’t happen on launch vehicles alone. It needs upstream hardware and satellite manufacturing. It also needs in-orbit mobility, downstream applications, and export-ready suppliers.
Private money is already following that logic. Funds deployed into Indian spacetech climbed 94% in 2025 to $157 Mn, up from $81 Mn in 2024, based on the source article’s cited sector report. Capital pools are also getting more specialized. 360 ONE Asset launched a defence and space strategy fund with a ₹1,000 Cr target corpus that had already been raised by January 2026, while SIDBI Venture Capital Ltd announced the first close of the Antariksh Venture Capital Fund at ₹1,005 Cr in November 2025.
There’s also a structural reason propulsion is getting more interesting now. More satellites in low Earth orbit means more pressure around orbital insertion and collision avoidance. It also raises demand for constellation phasing, life extension, and end-of-life disposal. That’s not flashy. But it’s real demand.
The bottom line on Bellatrix Aerospace
Bellatrix Aerospace isn’t selling spectacle. It’s selling the messy, mission-critical hardware that keeps satellites useful after launch.
That can become a very good business if the company nails production, quality, and customer delivery. After this $20 Mn round, that’s the pressure point.
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FAQ
What funding did Bellatrix Aerospace raise?
Bellatrix Aerospace raised $20 Mn in a Pre-Series B round led by Cactus Partners. The round brought in new backers including Hero Investment Office, 35 North Ventures, Indusbridge Ventures, and Monarch Holdings, and pushed the startup’s total funding since 2015 to about $31 Mn.
How does Bellatrix Aerospace’s product work for satellite customers?
Bellatrix sells propulsion systems that get integrated into satellites based on mission need — electric propulsion for longer-duration efficiency and green propulsion for safer maneuvering. It also sells orbital transfer hardware for post-launch deployment. It also builds Pushpak, an orbital transfer vehicle designed to carry small satellites and place them more precisely after launch, which can cut mission complexity for operators.
Who are the founders of Bellatrix Aerospace?
Bellatrix Aerospace was founded in 2015 by Rohan Ganapathy and Yashas Karanam. Ganapathy came from an aeronautical engineering background and started working on water-based propulsion years before the company was formally incorporated. Karanam became the operating and business counterpart who helped turn the idea into a company.
Why is Bellatrix Aerospace part of India’s spacetech growth story?
Bellatrix sits in a part of the market that’s becoming more important as India’s satellite activity expands — propulsion and in-space mobility. With India targeting a $44 Bn space economy by 2033 and private spacetech funding rising sharply in 2025, companies that solve orbit management, station-keeping, and satellite efficiency are likely to draw a lot more attention.
