Spacetech Startup Sisir Radar Raises $7 Mn in Series A Round

Spacetech startup Sisir Radar, which builds Synthetic Aperture Radar (SAR), has raised USD 7 million in a Series A funding round led by 360 ONE Asset, with participation from Shastra VC.

The funding will help the company launch India’s first privately developed L-band Synthetic Aperture Radar satellite by 2026, boosting the country’s Earth observation and surveillance capabilities.

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Dr Tapan Misra said, "India's geographical nuances require the ability to not just see through clouds but also through vegetation for any meaningful application, be it military or civilian. This requires lower frequencies like L and P bands where getting high resolution is conventionally challenging. This is what we have cracked for L and P bands."

Soumya Misra, CEO and Founder of Sisir Radar, said, "This funding enables us to accelerate from prototypes to orbital assets and to build high precision systems rooted in scientific excellence."

About Sisir Radar

Founded by Dr Tapan Misra, former Director of the Space Applications Centre at ISRO, the Kolkata-based Sisir Radar develops advanced Synthetic Aperture Radar (SAR) systems for drones, aircraft, and satellites. Its SAR technology provides high-resolution imaging that works in all conditions, including clouds, darkness, smoke, and bad weather.

The company’s solutions are used in defence, agriculture, mining, infrastructure monitoring, and disaster response, and it also works on ground-penetrating radar and hyperspectral imaging.

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Sisir Radar is working to launch India’s first privately developed L-band SAR satellite, fully designed and built in India. The satellite will provide all-weather, high-resolution imagery for national security, environmental monitoring, urban planning, and disaster management.

The company says its L-band SAR offers 0.75-metre resolution, while its P-band SAR delivers 2.5-metre resolution—better than many global systems. These radars can see through foliage and partially below the ground, improving visibility in difficult terrains. 

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