Osmose acquires Mainswest

Osmose agreed to acquire Mainswest. Reported deal value: Undisclosed. Status: Announced. Sector: civil and electrical contracting. Target headquarters context: Perth, Western Australia, Australia.

This page summarizes publicly available information about the transaction as of 2026-01-27. Figures and status may change as filings and press coverage update.

Osmose Utilities Services , Inc. , today announced that, through its Australian subsidiaries, it has acquired Mainswest Pty Ltd , a civil and electrical contracting organisation specialising in the construction and maintenance of underground utilities, and substantially all assets of Centillion Solutions Pty Ltd, a leading engineering design services company for the telecommunications industry