Blog >


Umbrex is pleased to welcome Carol Gsell with Certo Marketing. Carol began her career at McKinsey & Co. as a Business Analyst. Following that, she honed her marketing skills at The Coca-Cola Company, Pizza Hut Inc., Zyman Group, and a promotions agency. Carol has been running her own consulting firm since 2006, with the exception […]

Umbrex is pleased to welcome Chris Laures with Laures Consulting. A dynamic and forward-thinking Strategy and Operations Executive with demonstrated success in product development and launch, business development and strategy, M&A, management consulting, competitive analysis, software engineering, and project management. Builds collaborative relationships with cross-functional teams, senior client leadership, and other internal/external business partners. Serves […]

Umbrex is pleased to welcome Alex Tuininga with Telegraph & High. A summary of Alex’ experience follows. “With more than 15 years of experience in the US Navy, management consulting, and VC/PE-backed hypergrowth companies, I can offer unique insights into your company’s strategy, operations, analytics, and organizational effectiveness to drive growth and identify opportunities for […]

Sin Yin Long shares a post and link to an informative article on strategy and boards. A great piece on strategy and boards, and a good trigger to pause and reflect. – Strategy on a page is essential. And this seemingly simple one-pager must be the epitome of complex analysis and rigour of thought – […]

Umbrex is pleased to welcome Alexander Brownstein.  Alex was a McKinsey consultant for two years where he was able to focus on a variety of consulting engagements ranging from new market entry, strategy, cost cutting, due diligences and portfolio company optimization. Over his 10+ year career, he has worked on many different industries, with a […]

Umbrex is pleased to welcome Sarah McGill with The Lime Group International. Sarah has twenty-five years experience working with senior leaders, their teams, and their organizations at times of transition and opportunity. She works at the intersection of strategy, people, and culture to help clients clarify direction, decode their organizations, and build systems and cultures […]

Umbrex is pleased to welcome Chris Tsakalakis with Trefo. Chris is a board director, consultant and advisor to technology companies who want to rapidly grow and scale. He is the former CEO of StubHub, Vivino and Kiva, which are all consumer online marketplaces. He started his career as a consultant at Bain & Company. He […]

Umbrex is pleased to welcome Susan Dunn with Third Thought Consulting. Susan Dunn spent 10 years as a Practice Expert in the Organization practice at McKinsey and 15 years designing and developing senior executive leadership development experiences. In 2014, she became a partner at Third Thought Consulting, a boutique from specializing in leadership and organization […]

Umbrex is pleased to welcome Marie Stohldreier. Marie is a co-founder at Skillz4Impact (, an Impact Venture Studio that partners with impact entrepreneurs in developing markets to define, accelerate and grow their businesses; and therewith enable them to create and scale long-term positive change in society. Prior to that Marie worked at McKinsey and has […]

Umbrex is pleased to welcome Joel Kuyper.  Joël has spend 2.5 years at Bain & Company, and has since been working as an independent consultant. He nurtured his deep analytical side with a MSc in Aerospace Engineering and as a strategy consultant at Bain & Company. He is able to diligently assess large data-sets, manage […]