| A.R. Co. Pharmaceutical s | Barauni, Begusarai. |
| Abium Pharmaceutical s | Hanuman Nagar, Gani Pur, City Muzaffarpur- 842002 |
| Acme Pharmaceutical s Pvt Ltd. | G-106, P.C .Colony, Kankarbagh, Patna-800020 |
| Aglowmed Ltd. | Exhibition Road, Patna-800 001 |
| Alkem Laboratories Ltd. | Exhibition Road, Patna-800 001 |
| Amalgameted Drug & Pharmaceutical s (P) Ltd., | Barauni, Tilrath, Begusarai. |
| Ampra Laboratories | B-24, Citi Centre Ashok, Mahima Place, G.M. Road, Patna-800 004. |
| Anoco Pharmaceutical s (India) Pvt. Ltd. | Brahmapura P.O., Mit, Muzaffarpur-842 003. |
| Aristo Pharmaceutical s Ltd. | S.P. Varma Road, Patna- 800 001. |
| Asian Laboratories, | Bidyapati Nagar, Samastipur. |
| Aster Pharmaceutical s | Sultanganj Patna |
| Astra Phamaceuticals | Ashok Cinema Building, Patna. |
| Barbat Pharmaceutical | River Side Road Khizer Sarai Gaya |
| Biofiel Laboratories | Ashoknagar, Kankarbagh Patna |
| Cachet Pharmaceutical s Ltd. | Exhibition Road, Patna-800 001. |
| Chems Pharma | Santa Bhawan East Boreing Canal Road, Patna |
| D.C.S. Pharmaceutical s, | Barauni, Begusarai. |
| Dabur India Ltd. | P.O. Daburgram, Dist. Deoghar-814 132. |
| Data Pharmaceutical s Pvt Ltd | C-17,Industrial Area, Patna-8000I3 |
| Draps Chemical Laboratories | Industrial Co-Operative Society Ltd., Kanoolal Road, Mithapur, Patna-800 001. |
| Eastern Drug | Awas Apartments, Canal East Boring Road, Patna-800 001. |
| Galpha Laboratories Ltd. | Jagdish Bhawan, Exhibition Road, Patna-800 001. |
| Hahneman Laboratory, | Govind Mitra Road, Patna. |
| Havit Pharma | Awadh Kunj, Road No. 6-A, Rajinder Nagar, Patna-800 016. |
| Hemma Pharma (India) | Kailash Bhawan, Puraichak, Patna-800 023. |
| Hindustan Dharma city Chemicals | Dhulbaria Brauni ,Begusarai |
| Hindustan Medical Products | Fulwaria Barauni ,Begusarai |
| Hindustan Pharmaceutical s, | Barauni, Begusarai. |
| Inchem Laboratories | House No. 125, Sri Krishna Nagar, Road No. 9, Patna- 800 001. |
| India Pharmaceutical s | Chowk Shikarpur, Patna-800 009. |
| Indian Drugs & Pharmaceutical s | Industrial Area, P.O. Ramakrishna Ashram, Post Box No. 76, Begusarai -842 001. |
| Infra Laboratory, | Nageshwar Colony, Boring Road, Patna. |
| Inter Pharmaceutical s Pvt Ltd | Ashok Cinema Building Patna-1,Patna |
| Ipro Labotries | Digha Ashiana, Patna |
| Jaskay Chemical & Phar Maceuticals | Montessori School Lane Boring Road Patna-1 |
| Jenet Pharma Laborator Ies | Lohiya Nagar Kankar Bagh, Patna |
| Jeskay Pharmochem Pvt. Ltd. | Gandhi Nagar, Boring Road, Patna-800 001. |
| Jonson Paints Compana | Pachim Darwaza Patna City Patna |
| Kemco Pharma | Sardaprasad Ghosh Lane, Govind Mitra Road, Patna- 800 004. |