Anthesis merges with Australian consultancy Ndevr Environmental


Anthesis, the largest group of dedicated sustainability professionals globally, has announced its merger with Ndevr Environmental, one of Australia’s leading advisory firms focused on accelerating the global transition to a sustainable, net zero future.

The news comes as we announced earlier this month that we are reinvesting in the secondary buyout at Anthesis, which saw international investment firm Carlyle acquire the majority stake. The transaction generated a 6x return on our initial investment.

Expanding Anthesis’ presence in Asia Pacific and establishing it in Australia, Ndevr Environmental supports some of Australia’s largest corporates, such as Viva Energy, Orica, BHP, Intrepid Travel and Rio Tinto, on the most significant climate change and societal issues.

Led by co-founder and Managing Director Matt Drum and his leadership team since 2010, Ndevr Environmental enables organisations to transition to a decarbonised future, identify and address human rights issues, embrace responsible investments and ESG frameworks, and formulate robust sustainability strategies with accurate reporting to address the complex regulatory landscape.

Aligned with Anthesis and ourselves on our B Corp certification and committing to a Net Zero Science-Based Target, the firm has grown to 40+ purpose-led experts with offices in Melbourne, Sydney, Brisbane, Perth, Adelaide, and Singapore. As part of Climate Active, a partnership between the Australian government and businesses, Ndevr Environmental has been certified carbon neutral since 2017.

Stuart McLachlan, CEO of Anthesis, said: “Through governmental commitment and stakeholder pressures, we see regulatory and voluntary drivers laying strong foundations for growth in sustainability and ESG solutions. Matt and the Ndevr Environmental team are leading the way in providing the breadth of capabilities needed to succeed in this decarbonisation and sustainability transition. We have been impressed with the impact they are achieving for their clients in Australia and we are excited that both Anthesis and Ndevr Environmental share the same mission. I am delighted to welcome the team to Anthesis.”

Our Buyout and Impact funds invested in Anthesis in early 2021 and in a close partnership with the company’s leadership team delivered a strong and sustainable growth. Revenues grew significantly, while its team more than doubled to 1,250 experts located in 39 offices across 22 different countries.

Carlyle will support Anthesis to build upon its industry-leading position in end-to-end sustainability solutions through international expansion, broadening the company’s service offering and continuing its successful track record of M&A.



Australia has rapidly shifted from an economy where our biggest emitters simply had to account for their emissions, to a place where aggressive decarbonisation is mandated under the Safeguard Mechanism reforms. To amplify our impact and meet the needs of business, we have merged with Anthesis, one of the world’s leading climate change and sustainability focussed advisory firm. Anthesis is a natural partner for Ndver Environmental, aligning on B Corp, impact as a measurement of climate action and a strong cultural fit. I am proud of what we have grown Ndevr Environmental to become and the amplified ambitions we can now set, as part of Anthesis, to guide more clients through the transition.

Matt Drum

Managing Director at Ndevr Environmental