About us

Since Calash's creation it has evolved from an oil and gas services commercial and operational due diligence provider into an award winning energy advisory firm providing strategy, business advisory and mergers and acquisitions support services.

The original client base of Private Equity firms remains very important but has grown to include a wide range of other Investors and Lenders, Executive Management, Corporate Finance and Other Advisors.

The Aberdeen office remains at the heart of our capabilities but new offices have been opened in London in 2012, Sydney in 2013 and Houston and New York in 2016. Complementary expertise was added during 2015 with the commencement of Calash Analytics and Calash Environmental.

Our sister company, Candour Energy (www.candour.com), also started in 2015, providing access to unparalleled global knowledge of the upstream and midstream energy markets.

To date, Calash has completed over 600 projects in the energy sector globally.

“Calash was able to get below the surface of the business very quickly and effectively. They homed-in on the key issues, providing a very balanced picture of the business that went way beyond a review of hard numbers. Their report highlighted areas of the business where we could make improvements and Calash clearly got it spot-on because we subsequently took the time to address the areas they identified, for our own benefit.”

CEO, Multinational Oil and Gas Services PLC