Here by giving a set of biotech companies operating in Goa.......
Merck Limited
http://www.merck.co.in
Unichem Laboratories Ltd
https://www.unichemlabs.com
Encube Ethicals Pvt. Ltd
https://www.encubeethicals.com
Tevapharm India Private Ltd
www.tevapharm.com
Marksans Pharma Ltd
www.marksanspharma.com
There are a lot of small biotech companies in Goa (Vicco Laboratories, Tivim Pharmaceuticals, Slim Chem Pvt Ltd, Shwarde Pharmaceutical Pvt Ltd, Novacare Drug Specialities Pvt Ltd, Neucon Pharma Pvt Ltd, Slim Chem Pvt Ltd), but these are the top ones........