SISIR Radar
High-resolution synthetic aperture radar for multi-platform imaging.
| Date | Investors | Amount | Round |
|---|---|---|---|
| N/A | €0.0 | round | |
* | $1.5m | Seed | |
| Total Funding | 000k | ||
SISIR Radar Private Ltd is a space technology startup specializing in the development of advanced Synthetic Aperture Radar (SAR) systems for terrestrial, aerial, and space platforms. Founded in 2022 by Dr. Tapan Misra, a former director at the Indian Space Research Organisation (ISRO), along with Soumya Misra and Urmi Bhambhani, the Kolkata-based company is developing India's first drone-borne SAR. The company's name pays homage to Sisir K. Mitra, a pioneer whose work laid the foundation for radar technology in India.
Dr. Tapan Misra is a globally recognized expert in imaging radar, having led two of ISRO's most prestigious centers and pioneered the RISAT series of imaging satellites, which are crucial for India's tactical and civilian applications. The founding team combines deep expertise in radar, hardware, and AI to develop its technology. The business was established to create high-resolution SAR that can operate at low altitudes on drones, providing clearer images than traditional satellite or aircraft-mounted systems, which are affected by atmospheric disturbances.
SISIR Radar develops SAR payloads across P, L, S, C, and X frequency bands, Ground Penetrating Radar (GPR), and drone-borne hyperspectral imaging systems. These systems are designed for all-weather, 24/7 monitoring, capable of seeing through clouds, smoke, fog, and darkness. The company's key offerings include the world's highest-resolution L and P-band SAR, which can penetrate tree cover and even the ground from space. Its client base spans diverse sectors, including defense, agriculture, disaster response, mining, urban planning, and infrastructure monitoring. The company serves as a key technology partner for Indian defense organizations and has won two Innovation for Defence Excellence (iDEX) challenges from the Indian Ministry of Defence to develop advanced SAR satellites for the Indian Air Force.
In early 2025, the company secured $1.5 million in a seed funding round led by Shastra VC, with participation from Riverwalk Holdings and INVSTT. This capital is being used to bolster research and development and manufacturing capabilities with the goal of launching India's highest-resolution L-band SAR satellite by the end of 2026.
Keywords: Synthetic Aperture Radar, SAR, drone-borne radar, space technology, Earth observation, remote sensing, high-resolution imaging, L-band SAR, P-band SAR, all-weather imaging, Ground Penetrating Radar, GPR, hyperspectral imaging, defense technology, geospatial intelligence, satellite payloads, Tapan Misra, Indian aerospace, strategic surveillance, environmental monitoring