- Plot No.89-K/3,Industrial Estate,Hayatabad, Peshawar
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- 091-5881520
- 91,Block-5,Shahrah-e-Iran,Clifton, Karachi
- www.obs.com.pk
- 021-35839623
- B-23-C,S.I.T.E.,Manghopir Road, Karachi
- www.obs.com.pk
- 021-35839623
- 111-247-247
- C-14,Manghopir Road,S.I.T.E., Karachi
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- 021-32573391
- S-209,Industrial Area,Kot Lakhpat, Lahore
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- 042-35153572
- 3rd Floor,Plot # 32,Sector-19,Korangi Industrial Area, Karachi
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- 021-34310900
- C-52,Block-4,Gulshan-e-Iqbal, Karachi
- www.oncovanz.com
- 03032967029
- LC-41,L.I.T.E.,Landhi, Karachi
- www.opal-labs.com
- 021-35011046
