International Road dynamics south Asia Pvt. Ltd.

Indra Systemas India Pvt. Ltd.

Oriental Structural engineers Pvt. Ltd.

Tecsidel India Pvt. Ltd.

Soma Isolux KB Tollway Pvt.Ltd.

Abengoa (Teyma India Ltd.)

TATA Projects Ltd.

L&T; constructions & water supply.

Indian Railway

RailTel

DFCCIL