- Off #3,1st Floor,Jason Centre,Block-9,Near Dunkin Donuts,Clifton, Karachi
- www.shamrockcom.net
- 021-35823694
- #202,2nd Fl.,Al Mussawir Crown,Block-10,Gulshan-e-Iqbal,Rashid Minhas Road, Karachi
- www.sigmaintl.pk
- 021-34982150
- 101,1st Floor,Al-Musavir Crown,Block 10-A,Gulshan-e-Iqbal,Rashid Minhas Road, Karachi
- www.sigmaintl.com
- 021-34833009
- House #275-C,Street #13,Scheme-3,Chaklala, Rawalpindi
- www.sigmen.com
- 051-5133751
- Office No. 47-H, Street 48, 6 Block, off Shahrah-e-Faisal Road, PECHS, Karachi, 75400,
- https://simsin.com.pk/
- +923405550120
- Suit #513/514,Park Avenue,24-A,Block #6,Shahrah-e-Faisal, Karachi
- www.skpconsulting.net
- 021-34312803
- SB-27,Mez.Floor,Topra Plaza,Block-13-C,Gulshan-e-Iqbal,University Road, Karachi
- www.starmarketingonline.com
- 021-34974667