Sisir Radar funding, investors and company details

Sisir Radar is an emerging Artificial Intelligence (AI) - Spacetech startup from Kolkata, working in the space of Spacetech and defence-tech startup. Founded by Tapan Misra.

Company: Sisir Radar Private Limited
Sector: Artificial Intelligence (AI) - Spacetech
Location: Kolkata
Founders: Tapan Misra

Company overview

Sisir Radar is a spacetech and defence-tech startup that builds advanced synthetic aperture radar (SAR) and ground-penetrating radar systems for drones, aircraft, and satellites. Its high‑resolution L‑ and P‑band SAR technology provides all‑weather, day‑night imaging that can see through clouds, smoke, and even dense foliage, serving use cases in defence, border surveillance, disaster management, agriculture, mining, and infrastructure monitoring.

Funding rounds

Latest round (Series A): $ 7.00 Mn (₹63.67 Cr.), 2025-12-15. Investors: 360 One Asset Management Fund, Shastra VC
Past round: $ 1.50 Mn (₹13.12 Cr.), 2025-02-28. Investors: Riverwalk Holdings