Sisir Radar Raises $7M to Launch India’s First Private L-Band SAR Satellite

Sisir Radar, an Indian space and defence technology startup founded by Soumya Misra, has raised $7 million in Series A funding led by 360 ONE Asset, with participation from Shastra VC. 

The funding will accelerate the company’s plans to launch India’s first privately developed L-band synthetic aperture radar (SAR) satellite by 2026, strengthening the country’s sovereign Earth-observation and surveillance capabilities.

The planned satellite will be designed, engineered, and built in India, delivering high-resolution, all-weather imagery for applications spanning national security, environmental monitoring, disaster management, agriculture, and urban planning. 

Unlike optical satellites, SAR systems can image through clouds, darkness, smoke, and dense foliage, enabling continuous situational awareness in India’s monsoon-heavy and vegetation-rich terrain.

Sisir Radar claims it has developed the world’s highest-resolution L- and P-band SAR systems, achieving 0.75-meter resolution in L-band and 2.5-meter resolution in P-band, performance levels it says are up to 10× better than prevailing global standards. These lower-frequency bands offer foliage and limited ground penetration, capabilities that are critical for both civilian and military use cases.

Investors highlighted the strategic importance of L- and P-band SAR as core sovereignty infrastructure, citing its role in border security, maritime domain awareness, climate resilience, and intelligence-grade monitoring. With this funding, Sisir Radar aims to move rapidly from prototypes to orbital assets, positioning India as a competitive global player in privately operated space-based radar intelligence.

Image Credits: Sisir Radar