- NATIONAL HIGHWAY AUTHORITY OF INDIA
- PUBLIC WORK DEPARTMENT, U.P.
- UNITECH LTD. NEW DELHI
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- NAGARJUNA CONSTRUCTION CO. LTD.
- PROGRESSIVE CONSTRUCTION LTD.
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- MADHYA PRADESH ROAD DEVELOPMENT CORPORATION LTD.
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- IRRIGATION DEPARTMENT , U.P.
- HINDALCO INDUSTRIES LTD.
- ESSAR PROJECT INDIA LIMITED.
- NATIONAL HIGHWAY AUTHORITY OF KENYA
- ITNL
- RAILWAY VIKAS NIGAM LIMITED
- KENYA NATIONAL HIGHWAYS AUTHORITY