Asia Investigation & Security Pte Ltd
101 Up Cross St #04-36 Singapore 058357
+65-6534-3310
+65-6534-4444
Westminster Investigation & Security Management
211 New Bridge Rd #01-00 Singapore 059432
+65-6227-4318
Summit Investigation & Security Services
151 Chin Swee Rd #12-10 Singapore 169876
+65-6235-2280
+65-6235-0380
101 Upper Cross Street #12-19 People's Park Centre Singapore 058357
+65-6532-2027
+65-6532-2683
Sigma Security Services Pte Ltd
20 Maxwell Road #09-12 Maxwell House Singapore 069113
+65-6227-4755
+65-6227-4255
Straits Investigation & Security Management Pte Ltd
32 Maxwell Road #01-03 A1 WHITE HOUSE Singapore 069115
+65-6535-1370
+65-6535-1708