Detectives Bureau
No. 32- B, C. R. Avenue
Kolkata- 700072, West Bengal (India)
Crime Detective World, Kolkata
No. 2/101/1, Dumdum Road
Kolkata- 700074, West Bengal (India)
D S Max Security & Investigation Bureau
Flat B-54, CMDA Housing Project
Kolkata- 700033, West Bengal (India)
Protection Bureau
1st Floor, 14, Hare Street, Kolkata GPO,
Kolkata- 700001, West Bengal (India)
Datta Gupta & Associates
No. 115- J, Rashbehari Avenue, Ground Floor
Kolkata- 700029, West Bengal (India)
A. G. Intelligence
No. 100/23, Jessore Road, Bhagabati Park, Dum Dum
Kolkata- 700074, West Bengal (India)
Superstar Investigation & Security Service
No. 1, Barbagan Lane, P. O. Alambazar
Kolkata- 700035, West Bengal (India)
Hawk Eye Security
No. 98 A, Dilkusha Street
Kolkata- 700017, West Bengal (India)