Founded in 2001, Calash is a strategic consulting and business advisory firm based in Aberdeen, United Kingdom. The firm offers services in areas of environmental consultancy, restructuring support, and other corporate finance services including mergers and acquisitions, asset valuation, due diligence, post-merger integration and execution support, and exit positioning and divestment support. Calash mainly works with investors and Lender/Debt Providers, executive management, accountancy firms, legal and other specialist advisors during the transaction process to provide commercial, operational, technical and environmental due diligence for vendor and buy-side engagements.