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Stefan Wisniowski
Sydney, Australia
MBA, Western Ontario
McKinsey & Co
Kresy-Siberia Foundation
Seaforth Strategic
David Maude
London, England
MPhil, Cambridge
McKinsey & Co
Bank of England
Independent Consultant
Walter Bertschinger
Zurich, Switzerland
McKinsey & Co
American Management Systems
W. Bertschinger Consulting
George Palmer
Washington, DC
PhD, Northwestern
McKinsey & Co
Independent Consultant
Enrique Burton
Montreal, Canada
BSc (Econ), Monterrey Tech
Boston Consulting Group
Independent Consultant
Peet van Biljon
Washington, D.C.
B. Eng, Stellenbosch University
McKinsey & Co
AlliedSignal Aerospace
BMNP Strategies LLC
Remen Okoruwa
Boston, MA
BA, Harvard
McKinsey & Co
Michael A. Pani
Frankfurt, Germany
MBA, NIMBA, PhD, Goethe
McKinsey & Co
Boston Consulting Group
MAP Advisors GmbH

Professional Development Events

Top Tier New York 2018
June 7 – 8, 2018
Top Tier London 2018
October 4 – 5, 2018
Events are invitation only and require a password. Request an invitation

Social Events

Events are invitation only and require a password. Request an invitation

What Members Say

Leff, Ilene So wonderful to be among like-minded colleagues for learning, improving our practices, getting to know one another and having fun.

Ilene Leff

McKinsey alum

As a veteran of four Top Tier events, I can say that Will and Umbrex always bring relevant and timely topics for building a high quality consulting practice.

Geoff Wilson

McKinsey alum

Top Tier is a "must go to" event - a unique combination of networking, learning, reflecting and just plain good fun! I leave with renewed personal and professional relationships, new ideas to run my practice and new content for my clients.

MaryKate Scott

McKinsey alum

I learned enough in two of the sessions to pay for the opportunity cost of the event several times over.

Jamie Campbell

McKinsey alum

It's great to meet with peers and to expand your horizon. Time well spent.

Joachim Fischer

McKinsey alum

Absolutely fantastic professional development—just what I was missing as an independent!

Eli Diament

McKinsey alum

Umbrex provides a community of like-minded independent consultants who want to make an impact not only with their clients, but also within themselves and their communities.

Mark Gomez

Bain alum

Umbrex is a unique resource, with extraordinary value for consultants and clients. I talk to (and work with) a lot of consultants, consulting networks and, of course, clients. While most consulting networks are a loose amalgamation of firms or consultants under a common banner, Umbrex is something quite different—a vetted community.

David A. Fields

David A. Fields, author of The Irresistible Consultant's Guide to Winning Clients

The Umbrex community is vibrant and supportive, events are top-notch, and the content is just superior.

Romain Ichbiah

Booz alum

Thought Leadership

Automakers in the Sharing Economy

Posted Mar 21, 2018

Automakers in the Sharing Economy Sven Beiker co-wrote this case study that compares different types of shared mobility solutions, including car-sharing and ride-hailing. It also describes the major trends such as urbanization, shifting consumer preference from ‘owning’ to ‘sharing’, and various technological advances.

How Artificial Intelligence Liberates the Mind

Posted Mar 20, 2018

Anant Singh explains why AI will liberate human potential and unleash a surge in creativity, exploration, and innovation.

Don’t Know How to Begin? – Take these Key Steps

Posted Mar 19, 2018

Mary Winn Miller explains why entrepreneurial thinking is a useful professional development tool for everyone, and she provides the key steps that will initiate your project quickly, cheaply, and effectively.

Maintaining Organisational Effectiveness in Times of Dramatic Change

Posted Mar 18, 2018

In this white paper, Belden Menkus explains what causes this drop in effectiveness and how you can avoid it.

Unleashed Podcast

Episode 49: Will Bachman on Getting Some Things Done

01/30/2018 Jan 30, 2018. On the show today Julia Bunte-Mein is back. Julia, a brilliant and accomplished sophomore at Harvard College, spent a day with me on a Winternship. On our last episode, Julia interviewed me about the advice I’d give to my college-age self, and related topics. Read full episode