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sustain:able acquires Acasta

Monday 6th March 2023


sustain:able Press Release - sustain:able acquires Acasta

acasta company logo

We are pleased to announce that ESG consultancy firm Acasta has been acquired by ESG consultancy sustain:able, for an undisclosed sum.


Acasta offered a holistic approach to Environmental, Social and Governance (ESG) integration to businesses, across multiple sectors. The approach recognised that a fully-integrated ESG strategy can help clients to mitigate risk posed by ESG concerns, and create opportunities for growth whilst preparing companies for future challenges in achieving a sustainable future.


All existing relationships and assignments of Acasta will be absorbed into the sustain:able business.


Commenting on the acquisition, Acasta founder Jon Fitzpatrick said: “ESG is increasing in importance on a daily basis, and by combining the best of Acasta with the skills and expertise of the sustain:able team, we are building some serious firepower in this competitive space. We wish sustain:able every success with their enhanced footprint and client portfolio – I am sure they will go from strength to strength.”


sustain:able founder Dr Rachel Gavey added: “We’ve enjoyed a long period of collaboration and friendly rivalry with the Acasta team and, at this stage in our development, it felt like the right time to combine forces and target a greater market share, recognising the obvious synergies and crossovers of the two businesses.”



About Acasta

Acasta was formed as a climate risk consultancy in 2021 and, during the course of 2022, transformed into a broader ESG consultancy. Working across multiple sectors, Acasta provides services aligned to seven key workstreams, from initial assessment through to evaluation and monitoring.


About sustain:able

Formed by Dr Rachel Gavey and Dr Rosalie Constable, sustain:able is an ESG consultancy focused on finding a balance to the energy trilemma and ensuring access to clean water. The principals have a background in geoscience and engineering, and bring over 50 years of combined experience in the global energy and extractive industries.





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