Our Team
With over four decades of experience with organisations across a variety of sectors, and a team of execution focused Client Managers, Ninety Days will help you deliver the change that you want.

Arend Welmers
MANAGING PARTNER
Arend works with our clients to design and deliver a process that drives the rapid, measurable improvements that you require. With over thirty years of experience in performance coaching, Arend has dedicated his career to helping organisations accelerate their performance and achieve tangible results.
A challenging, inspiring and highly regarded coach, facilitator and speaker, Arend has a reputation for designing and implementing interventions that challenge conventional practices and quickly generate value for client organisations.
Recent assignments have seen him designing and leading major leadership development and business change strategies in Lisbon, Paris, Berlin, New York and London.

Philip Curzon
MANAGING PARTNER
With over forty years in senior leadership roles in both the public and private sector, Philip uses his experience to ensure that our clients execute the measurable change they have agreed upon.
In his most recent role Philip was CEO of an educational technology company which transitioned from a bricks and mortar publishing house to a global online content provider.
An alumni of Harvard Business School, INSEAD and the Army Staff College, Philip works closely with our clients throughout the 90 Day Cycle to ensure that together, we deliver the planned outcomes.

Arend Welmers
MANAGING PARTNER
Arend works with our clients to design and deliver a process that drives the rapid, measurable improvements that you require. With over thirty years of experience in performance coaching, Arend has dedicated his career to helping organisations accelerate their performance and achieve tangible results.
A challenging, inspiring and highly regarded coach, facilitator and speaker, Arend has a reputation for designing and implementing interventions that challenge conventional practices and quickly generate value for client organisations.
Recent assignments have seen him designing and leading major leadership development and business change strategies in Lisbon, Paris, Berlin, New York and London.

Arend Welmers
MANAGING PARTNER
Arend works with our clients to design and deliver a process that drives the rapid, measurable improvements that you require. With over thirty years of experience in performance coaching, Arend has dedicated his career to helping organisations accelerate their performance and achieve tangible results.
A challenging, inspiring and highly regarded coach, facilitator and speaker, Arend has a reputation for designing and implementing interventions that challenge conventional practices and quickly generate value for client organisations.
Recent assignments have seen him designing and leading major leadership development and business change strategies in Lisbon, Paris, Berlin, New York and London.