Eden McCallum is a London-based consulting firm founded in 2000 by former McKinsey consultants Liann Eden and Dena McCallum. From the start, they aimed to provide “top-class quality at a lower price” by combining flexibility and low overhead with the caliber of talent found at large strategy firms. 

The firm’s distinctive model builds project teams of elite independent consultants—over 2,500 globally—with deep industry or consulting backgrounds, complemented by in-house partners and analysts who ensure quality, consistency, and delivery of impactful solutions. 

Eden McCallum serves a broad spectrum of sectors—from retail and media to healthcare, industrials, financial services, and the public sector—and delivers support across growth, digital, sustainability, M&A, performance improvement, organisation design, and transformation. Projects include transformative work like boosting airline payments operations, integrating pharmacy chains post-merger, and achieving EBITDA gains through value creation plans.