I am deeply honoured to be recognised in 2025 as the #7 leadership expert by Global Gurus and #1 in both change management and business strategy by Thinkers360.

I will be formally awarded at the Global Gurus annual event later this year. I sincerely thank the Global Gurus research team and Thinkers360 for their confidence in my work and for recognizing my contributions to improving the Leadership of Change®.
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Peter consults, speaks, and writes on the Leadership of Change®.
He works exclusively with boards, CEOs, and senior leadership teams to prepare and align them to effectively and proactively lead their organisations through change and transformation.
For insights on navigating organisational change, feel free to reach out at Peter.gallagher@a2B.consulting or schedule a free consultation
Peter F. Gallagher is a leadership guru, change management global thought leader, organisational change authority, international corporate conference speaker, 15X author, and C-level change leadership coach.
Listed #1 by leadersHum Top 40 Change Management Gurus You Should Follow in 2022 (Mar 2022).
Ranked #1 Change Management Global Thought Leader: Top 50 Global Thought Leaders and Influencers on Change Management (2024-2023-2022-2021-2020) by Thinkers360.
Listed #15 in the “Top 30” for Global Gurus Leadership (2024) by Global Gurus.
Ranked #1 Business Strategy Global Thought Leader: Top 50 Global Thought Leaders and Influencers on Business Strategy (2022) by Thinkers360.
Ranked #6 Leadership Global Thought Leader: Top 50 Global Thought Leaders and Influencers on Leadership (April 2024) by Thinkers360.
Business Book Ranking
Change Management Behaviour - Leadership of Change® Volume 6, listed among the 50 Books from Thinkers360 Thought Leaders to read in 2022.
Change Management Adoption - Leadership of Change® Volume 5, listed among year-to-date’s (Jul 2021) most popular books on business and technology from Thinkers360 member thought leaders.
Change Management Handbook - Leadership of Change® Volume 3, listed among the 50 Business and Technology Books from Thinkers360 Thought Leaders to read in 2021.
Change Management Pocket Guide - Leadership of Change® Volume 2, ranked within the top 50 Business and Technology Books (Jan 2020) from Thinkers360 Thought Leaders.
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