As a leadership adviser, Seymour is dedicated to bringing the best of leadership assessment and development science to clients, translating insight into high-impact actionable solutions.
For more than four decades, Seymour has helped senior leaders define and build the mindsets and capabilities their teams need to turn bold strategy into measurable results. Clients turn to him for holistic and pragmatic solutions to strengthen future-ready organizational capabilities at the individual, team and cohort levels.
Seymour has advised more than 100 organizations, many of them global Fortune 500, across financial services, technology, healthcare, retail, media and manufacturing. His broad exposure gives him a valuable comparative lens for helping clients make sound, evidence-based decisions about executive hiring, promotion and succession. This perspective, alongside Seymour’s distinct blend of rigor, practical judgment and partnership, makes him a trusted adviser in high-stakes situations.
Deeply committed leadership expert
- Prior to Spencer Stuart, Seymour was a founder and principal of Assessment Solutions Incorporated, a firm he helped take public in 1997 before being acquired by Aon in 2001. At Aon, he served as co-practice leader for the talent consulting practice and as the head of the global leadership practice council.
- Recognized for the enduring impact of his thought leadership and advisory work, Seymour received the 2019 Distinguished Professional Contributions Award from the Society for Industrial and Organizational Psychology and has authored numerous articles and book chapters for professional and academic audiences.
Seymour earned his doctorate in industrial/organizational psychology from New York University and continues to teach doctoral students as an adjunct professor, reflecting the same commitment to evidence, learning and thoughtful mentorship that guides his client work.