We have trained individuals and teams from more than 9,000 organisations. See more of our customers.

Our Customers

Our customers include public, private and not-for-profit organisations of all sizes and across all sectors, from small and growing businesses to some of the world’s largest employers.

We use our longstanding experience and in-depth knowledge to challenge and transform our customers’ approach to management and leadership, providing the tools, techniques and skills required by leaders, managers and their teams to make immediate improvements back in the workplace.

University College London

Somerville College

Sheffield University

National Examining Board for Dental Nurses

University of Essex

Green Templeton College

British Universities and Colleges Sport

Newcastle University

The Open University

Swansea University Joint Clinical Research Facility

University of Cambridge School of Medicine

Financial Times

Heart FM

Archant Media

Bertelsmann

Callaway Gold

Case study: Ocado

Ocado partners with Impellus to deliver consistent, high-quality management training across its rapidly growing business....

Continue reading
L.S, Publitek Ltd

"David James is a great and engaging presenter and course leader. The content is a good mix of theory and practical, group and breakout sessions."

See more testimonials

Funded Development Access Pass – registrations open

The Funded Development Access Pass is a funding initiative launching at the beginning of the financial year 2026-27. It's available only to organisations who have previously used funding to develop ...

Read more

Funded Development Access Pass

The Funded Development Access Pass is a funding initiative launching at the beginning of the financial year 2026-27. It's available only to organisations who have previously used funding to develop ...

Read more