Decipher
33 P, Raja Naba Krishna Street
Kolkata- 700005, West Bengal (India)
Black Cat Detectives
No. 7, Shristidhar Dutta Lane, No. 138, Aurobinda Sarani Hatibagan, Near Ratnagiri Jewellers
Kolkata- 700006, West Bengal (India)
Anapol Group
188 Block J New Alipur ,Alipore
Kolkata- 700027, West Bengal (India)
Secura
104/1/15 Satyen Roy Road ,Behala
Kolkata- 700034, West Bengal (India)
Black Eye
No. 8/7A, Bejoygarh
Kolkata- 700032, West Bengal (India)
F. R. Detectives Services
19, M N K Road, Baranagar, Near Manik Memorial Durga Mandir
Kolkata- 700074, West Bengal (India)
Silver Fox Detective Private Limited
No. 18/B, Dr. Biresh Guha Street
Kolkata- 700017, West Bengal (India)
Indus Consultancy
4, Govt. Place, North (BBD Bagh)
Kolkata- 700001, West Bengal (India)