Capabilities · Space & Satellite
AOCS sensors, EGSE and checkout systems, sensor simulators, flight software and FPGA boards for spacecraft and their ground segments. Through its founding team, GSAS has supported ISRO since the 1990s.
Organised by what a programme procures, not by how GSAS is organised. Each card lights the point on the spacecraft or on the ground where that work sits.
Sun, Earth and star sensors for attitude and orbit control.
Sun, Earth and star sensors delivered for ISRO, 2016 to 2019
Electrical ground support equipment that proves a subsystem works before it flies.
Checkout systems built for ISRO
Stimulus equipment that lets a star sensor be tested on the bench.
Star-sensor test simulators delivered for ISRO, 2022
Boards built to the customer’s drawings, from schematic to verified hardware.
Ready to contribute, building on the ISRO sensor and test work
Embedded code for the boards GSAS builds, verified with a unit-test tool chain.
Ready to contribute
Digital design and multilayer boards, as a design house working to specification.
Design work on Defence and SHAR programmes
Through partners
Next
NewSpace ground-station test.
Design, build and board-level verification in-house, with environmental qualification through qualified partners. Hover a stage to see its part of the card.
01
Defence and SHAR programmes
02
Supported Chandrayaan-3 and Aditya-L1
03
Checkout systems built for ISRO
Related: FPGA design · Hardware and PCB · Embedded software · Testing and validation
Through its founding team, GSAS has supported ISRO since the 1990s, including hardware and test systems for Chandrayaan-3 and Aditya-L1. The company itself was founded in 2010.
As a valuable industry partner, you have … significantly contributed in the realization of hardware and testing of systems as per the schedule.
11 ISRO centres, across the chain
Launch
Spacecraft
Ground & mission
Agencies and primes, NewSpace startups, and Indian programmes each work with GSAS differently. Pick yours.
01
ESA and EUSPA programmes, European primes
GSAS designs, builds and verifies to your drawings and specification: sensors, boards, EGSE and simulators. Engineering, build and board-level verification are delivered from Bengaluru, with vibration and TVAC qualification through qualified partners.
02
US and international
An engineering and test partner in India: EGSE, test benches and simulators, boards built to specification, and build and verification at its build and test site in Bengaluru Rural. GSAS already works with 22 customer organisations in India’s space sector, including 11 ISRO centres and 6 NewSpace companies.
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ISRO centres, NewSpace and Defence
Engineering led from Bengaluru, a half-acre build and test site at Doddaballapur, and 11 offices in 9 cities. Through its founding team, GSAS has supported ISRO since the 1990s, most recently with hardware and test systems for Chandrayaan-3 and Aditya-L1.
Tell us the subsystem or the test need. GSAS replies from Bengaluru with scope and a proposal: sensors, boards, EGSE and simulators, designed, built and verified, with environmental qualification through qualified partners.
Satya Gopalam
Founder, Chairman & MD · Bengaluru
Anvesh Gopalam
Executive Director · Bengaluru
AOCS sensors (sun, Earth and star sensors), EGSE and checkout systems, sensor and star simulators, test benches and jigs, onboard computer, power and payload boards, flight software verified with TESSY, and FPGA and multilayer PCB design. TT&C and RF are delivered through partners, and vibration and TVAC qualification and PCB fabrication through qualified partners.
Through its founding team, GSAS has supported ISRO since the 1990s: fibre links for ISRO centres, sun, Earth and star sensors (2016 to 2019), star-sensor test simulators (2022), and hardware and test systems for Chandrayaan-3 and Aditya-L1 (2023). ISRO LEOS recognised the contribution in a letter of appreciation in August 2024. GSAS works with 11 ISRO centres across launch, spacecraft and ground.
GSAS is open to supporting them as an engineering and test supplier. It designs, builds and verifies to the customer’s drawings and specification, with engineering, build and board-level verification delivered from Bengaluru and environmental qualification through qualified partners. ESA and ISRO have extended their cooperation to 2032, and the EU and India concluded a trade agreement in January 2026.
Yes. GSAS is open to working with them as an engineering and test partner in India: EGSE, test benches and simulators, boards built to specification, and build and verification at its build and test site in Bengaluru Rural. GSAS already works with 22 customer organisations in India’s space sector, including 11 ISRO centres and 6 NewSpace companies.
GSAS covers design, build and board-level verification in-house. Vibration and thermal-vacuum (TVAC) qualification, and PCB fabrication, are delivered through qualified partners.
In Karnataka, India. GSAS opened a half-acre build and test site at Doddaballapur, Bengaluru Rural, in 2026, with room to expand. Engineering is led from Bengaluru, and GSAS has 11 offices in 9 Indian cities. GSAS is ISO 9001:2015 certified by TÜV Rheinland.
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