- Air Liquide Nigeria Limited
Port Harcourt, Nigeria.
- Noah Consults Limited Lagos, Nigeria.
- Croff Nigeria Ltd, Portharcourt
- N.P.D.C Benin City, Nigeria
- Mobil Producing Unlimited, Nigeria
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- Central Bank Of Nigeria
- Century Energy Services Ltd. Lekki, Lagos
- Daewoo E & C Nigeria Ltd.
- Rusal Alscon, Ikot Abasi, Nigeria.
- State Border Communities Development Comm.
- Cross Rivers State Government, Nigeria
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