Tata Consultancy Services (TCS) played a crucial role in the establishment of the Giant Metrewave Radio Telescope (GMRT) in India. TCS provided technical expertise and resources for the construction and operation of the GMRT.

J.C. Bose is known as the 'Father of Indian Astronomy' for his pioneering work in the field. He established a private observatory in Kolkata and made significant contributions to the study of solar eclipses, sunspots, and other celestial phenomena.

Vigyan Prasar is a private organization dedicated to promoting science education and outreach in India. It plays a significant role in popularizing astronomy among the general public through various initiatives such as science exhibitions, workshops, and publications.

The Tata Institute of Fundamental Research (TIFR) is a private foundation established by the Tata Group to support astronomy and astrophysics research in India. TIFR has made significant contributions to the field through its research facilities and collaborations with international institutions.

Larsen & Toubro (L&T) has collaborated with ISRO to develop and launch satellites for astronomy missions. L&T has provided expertise in satellite design, fabrication, and testing, contributing to the success of various astronomy missions in India.

Birla Planetarium is a private observatory located in Rajasthan that is dedicated to promoting astronomy among the public. It features exhibits, shows, and educational programs that aim to engage visitors with the wonders of the universe.

Reliance Industries Limited (RIL) has invested in the development of advanced telescopes and instruments for astronomical research in India. RIL's investments have supported the establishment of state-of-the-art observatories and research facilities, contributing to the advancement of astronomy in the country.

Ratan Tata is a renowned Indian industrialist and philanthropist who has made significant contributions to the promotion of astronomy in India through his private initiatives. He has supported the establishment of observatories, research centers, and educational programs, contributing to the growth of astronomy in the country.

Tata Consultancy Services (TCS) has collaborated with ISRO to develop and operate the Indian Regional Navigation Satellite System (IRNSS). TCS has provided expertise in system design, integration, and testing, contributing to the successful implementation of this satellite navigation system.

Starlink is a private company that has launched a constellation of satellites to provide high-resolution Earth observation data for various applications, including astronomy. Starlink's satellites have the potential to contribute to astronomical research by providing valuable data on celestial objects and phenomena.

Aryabhatta Research Institute of Observational Sciences (ARIES) has established a network of observatories across India to promote astronomical research and education. ARIES's observatories are equipped with advanced instruments and facilities, enabling astronomers to conduct cutting-edge research in various areas of astronomy.

Tata Education and Development Trust supports astronomy research and education in India through grants and scholarships. The trust provides financial assistance to students and researchers pursuing studies in astronomy, contributing to the development of human capital in the field.

Bharti Airtel Limited has collaborated with ISRO to develop and launch satellites for Earth observation missions, which can also be used for astronomical studies. Bharti Airtel's satellites provide valuable data on various Earth parameters, including land cover, vegetation, and atmospheric conditions, which can be useful for astronomical research.

Uttarakhand State Observatory is a private observatory located in Uttarakhand that is dedicated to promoting astronomy among the general public. It features telescopes, exhibits, and educational programs that aim to engage visitors with the wonders of the universe.

Las Cumbres Observatory is a private organization that has established a network of telescopes across the globe to study transient astronomical phenomena, such as supernovae and gamma-ray bursts. Las Cumbres Observatory's telescopes are equipped with specialized instruments that allow for rapid observations of these fleeting events.