Ex-ISRO Scientist's SpectraGaze Raises ₹3.7 Crore From GVFL to Build Indian Infrared and Space Imaging Sensors
Ahmedabad's SpectraGaze Systems, founded by former ISRO scientist Arup Banerjee, has raised a ₹3.7 crore seed round led by GVFL, its first outside funding after three years of selling detectors and test systems to ISRO, PRL and Kaynes.
SpectraGaze Systems, an Ahmedabad company founded by a former ISRO scientist, has raised ₹3.7 crore in a seed round led by GVFL, the Gujarat-based venture capital firm, with angel investors also taking part. The deal was reported on 22–23 October 2026. It is the start-up's first external fundraise, after three years in which customer revenue paid for its growth. The company builds the optical and infrared imaging sensors that sit inside satellites, missiles and scientific instruments, and India still imports much of this hardware.
Who is behind it
SpectraGaze was founded in 2023 by Arup Banerjee, who spent 23 years as a scientist at ISRO before starting the company. It develops optical imaging sensors and electro-optical payloads for space, defence and scientific use, covering the visible through the thermal infrared bands. Its stated aim is to reduce India's dependence on imported detectors.
Track record before the cheque
The company already has paying customers. Reported customers include ISRO, the Physical Research Laboratory (PRL) in Ahmedabad, and Kaynes Technology India. Reported milestones include:
- delivery of an infrared detector and test system to ISRO;
- an image-sensor development contract for ISRO's next-generation HRSAT programme, carried out in partnership with AMETEK;
- a win in the iDEX PRIME challenge for an infrared detector dewar-cooler assembly, the cryogenic housing that keeps infrared detectors cold enough to work.
Some of these milestones were reported by the company and have not been independently confirmed. Together they suggest a team selling to demanding government buyers well before raising venture money.
What the money is for
SpectraGaze says the seed capital will go towards:
- product development and delivery of existing customer programmes;
- a larger engineering team;
- upgraded testing infrastructure;
- stronger business development.
The company is also reported to be developing a hyperspectral imaging camera for a 3U CubeSat. Hyperspectral cameras record hundreds of narrow wavelength bands rather than the three colours of an ordinary camera, so they can identify materials, crops, minerals and pollutants from orbit. Fitting one into a 3U CubeSat, roughly the size of a loaf of bread, is a demanding engineering task.
Why detectors matter
Detectors and focal-plane arrays are among the hardest parts of the space and defence supply chain to build domestically. Infrared detectors in particular need specialised semiconductor materials, cryogenic cooling and precision packaging, and only a handful of countries make them at scale. Much of India's need, for Earth-observation satellites, missile seekers, night sights and border surveillance, has been met by imports, which brings export-licence risk and long lead times.
A company led by someone who worked on ISRO's imaging payloads, now selling detectors and test systems back to ISRO and PRL, is the kind of spin-out India's space reforms were meant to produce. As more Earth-observation start-ups such as Pixxel, GalaxEye and SatSure build satellite constellations, demand for Indian-made imaging sensors should grow.
The investor and the ecosystem
GVFL, formerly Gujarat Venture Finance Limited, is one of India's longest-running venture investors and counts Gujarat state institutions among its backers. The SpectraGaze deal adds to a growing cluster of space activity in Ahmedabad, which is home to ISRO's Space Applications Centre, the Physical Research Laboratory and IN-SPACe, the regulator that authorises private space activity. A detector start-up there has its main customers and its regulator in the same city.
The iDEX PRIME win also matters. iDEX (Innovations for Defence Excellence) is the defence ministry's start-up programme, and its PRIME track offers larger grants for more complex, longer-gestation hardware, which is the category infrared detector assemblies fall into.
The fine print
At ₹3.7 crore, this is a small round by deep-tech standards. Detector development is capital-intensive, and scaling from test systems and development contracts to volume production will almost certainly need more money. GVFL's involvement gives the company an established Gujarat investor, and its existing contracts give it some revenue while it builds the next round's story.
Sources
- https://indiatechnologynews.in/gvfl-leads-%E2%82%B93-7-crore-seed-funding-round-in-ahmedabad-based-space-tech-startup-spectragaze-systems/
- https://www.indianstartuptimes.com/investment/ahmedabad-based-space-tech-startup-to-accelerate-indigenous-imaging-technology-development-for-space-and-defence-applications/
- https://www.newskart.com/firstwork-raises-15-million-for-workforce-ai-and-spectragaze-secures-rs-3-7-crore-for-space-sensors/
- https://yourstory.com/2026/10/startup-news-and-updates-daily-roundup-october-23-2026