DefTech Start-Up SISIR Radar Raises $7 Million To Build Private SAR Satellite

Sisir Radar, a space and defence technology start-up, has secured $7 million in a Series A funding round led by 360 ONE Asset, with participation from Shastra VC.This investment, announced on 15 December 2025, aims to propel the development of India’s first privately built L-band synthetic aperture radar (SAR) satellite. The funding marks a significant milestone for indigenous radar technology in
Sisir Radar, a space and defence technology start-up, has secured $7 million in a Series A funding round led by 360 ONE Asset, with participation from Shastra VC.This investment, announced on 15 December 2025, aims to propel the development of India’s first privately built L-band synthetic aperture radar (SAR) satellite. The funding marks a significant milestone for indigenous radar technology in
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