Onterris Acquires EcOz to Expand Environmental Consulting in Northern Australia

US-based environmental services company Onterris has acquired EcOz Environmental Consultants, strengthening its consulting operations across Australia's Northern Territory. Announced on 8 November 2026, the acquisition brings EcOz's environmental assessment, regulatory advisory and project rehabilitation capabilities into Onterris's consulting division. The Darwin and Alice Springs-based business will expand the company's Australian presence, complementing its existing operations across Queensland, New South Wales, Victoria and South Australia.

EcOz provides environmental consulting and advisory services supporting infrastructure and industrial projects throughout their development, operational and rehabilitation stages. Its work focuses on managing environmental compliance, regulatory obligations and stakeholder risks through scientific assessments and technical advice. The acquisition gives Onterris an established local team in Northern Australia, where environmental management requirements are relevant to resource development and other major projects.

 

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According to Onterris's regulatory filing dated 5 November 2026, the acquisition was completed on 1 October 2026, with the company purchasing 100% of EcOz's common stock. Onterris also acquired Permian Basin Environmental Lab in the United States on 2 November. The combined purchase price for the two transactions was $8.8 million, funded through cash reserves and borrowings under the company's revolving credit facility. The filing did not disclose a separate acquisition value for EcOz.

Vijay Manthripragada, President and Chief Executive Officer of Onterris, said, "Since entering the Australian market, we have continued to build a comprehensive environmental solutions platform, and EcOz represents an important next step in that strategy." Ray Hall, owner and Managing Director of EcOz, said, "I’m incredibly proud of what EcOz has built and the legacy of good work our team has delivered across the Northern Territory."

Following the acquisition, EcOz will operate within Onterris's consulting division, combining its regional expertise and established client relationships with the group's broader environmental services network. Nash Advisory and Ward Keller advised EcOz on the transaction, while Jones Day advised Onterris. The company has not disclosed specific integration milestones or quantified environmental outcomes associated with the acquisition.

 

Source: Onterris, Inc.