Hindustan Machine Tools (H.M.T)

• Established in 1967, with a unit in Medchal-Malkajgiri district producing watches, bulbs, and borewell spares.

Bharat Heavy Electricals Limited (B.H.E.L)

• Known for manufacturing turbines and generators; unit established in 1963 at Ramachandrapuram, Sangareddy district.

Electronics Corporation of India Limited (E.C.I.L)

• Set up in 1967, it produces electronics for defense, telecom, broadcasting, banking, and other sectors. Located in Medchal district.

Hindustan Aeronautics Limited (H.A.L)

• Founded in 1965 with a unit in Rangareddy district, specializing in aeronautical engineering.

Mishra Dhatu Nigam Limited (MIDHANI)

• Established in 1973, focuses on super alloys and materials for defense, nuclear, aeronautics, and space sectors, located in Rangareddy district.

Bharat Dynamics Limited (B.D.L)

• Established in Hyderabad in 1970, manufacturing guided missiles and defense equipment with units in Hyderabad, Sangareddy (Bhanur), and Visakhapatnam.