Depthwize Nigeria Limited is a Nigerian drilling contractor headquartered in Lagos with assets in the swamp and shallow offshore market, and its contact listings show a Lekki Phase 1 head office alongside a Port Harcourt presence at 1 Yola Street, Amadi Flats, Old GRA; the company provides rig services and related drilling support to E&P clients in Nigeria and publishes generic and sales enquiry mailboxes for commercial requests.