- 309,Al-Sehat Centre,Hotel Regent Plaza,Shahrah-e-Faisal, Karachi
- www.nfeh.org.pk
- 021-35653676
- #12,3rd Floor,Mujahid Plaza,Jinnah Avenue,Blue Area, Islamabad
- www.pergil.com
- 051-2873738
- Office #4,Block-18,PHA-Apartment,G-7/1, Islamabad
- www.petrowaste.com.pk
- 051-2204349
- Plot#133,Street#9,Sector#I-10/3,Industrial Area, Islamabad
- www.swsintl.org
- 03033332533
- #306,S.S.Chambers,B-76 Estate Avenue,S.I.T.E., Karachi
- www.technocratspk.com
- 021-32565985
