The thegentlemen ransomware group listed MB Associates on its data leak site on 2026-08-30. Country: GB Sector: Professional Services Domains named: mbassociates.org, zoominfo.com, culturecubed.org Claim as published on the leak site: mbassociates.org zoominfo.com/c/mb-associates/372858181 MB Associates is a UK social impact consultancy founded in 2005 by Mandy Barnett (London Business School MBA, chair of Social Value UK), based in Holmfirth, West Yorkshire; its legal entity is Mandy Barnett Associates Ltd (incorporated 7 Sep 2005, registered in Welwyn Garden City). It helps people, projects and organisations understand and increase their social impact — impact evaluation, SROI analysis, consultation and research, creative facilitation, training and toolkits — working through a Plan–Do–Review cycle that starts with a "Story of Change". Clients include Arts Council England, the National Lottery, UKRI-AHRC, Natural Resources Wales, Bristol City Council, the National Children's Orchestra, museums and charities; it also runs its own learning platform, Culture3 (culturecubed.org). In February 2026 the founder handed the firm over to colleagues — directors Jael Williams and Emily Wilson — and the brand