Trium was founded in 1998, at a time when old business models were being re-examined and radical questions around what it means to be a leader were emerging. Our founders included management consultants, a world class whitewater guide, and a former Marine officer, who came together with a profound sense of mission and possibility. We saw that traditional consulting firms failed to recognize that all strategy problems are leadership problems and vice versa. That insight is at the core of our philosophy and consulting approach. We have served renowned industry leaders and scrappy startups in diverse industries across the globe. Though we’ve continued to learn and evolve over the past 20 years, our mission remains unaltered:


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Meet the Team

Our team is fluent in the languages of strategy, business performance, leadership, and interpersonal dynamics. We have worked extensively with large and small organizations, both as leaders and as senior-level consultants brought in to rethink strategy, redesign structure, amplify execution, and catalyze change. Our job is to mobilize our clients’ internal capacities to create change that is lasting and meaningful.

Andrew Blum

As Founder and Chairman of Trium, Andrew is a globally recognized thought leader, pioneering strategy consultant, and sought-after C-Suite coach. He was recognized by Consulting Magazine as a Top 25 Consultant and has spent his career supporting clients in transformational change through a unique practice that integrates strategy, leadership, and culture. Andrew’s mission is to change the world by changing the way business leaders think. With over two decades of global consulting experience, he has led breakthrough engagements at many of the world’s leading organizations – from Fortune 50 companies to venture-backed unicorns. Prior to founding Trium, Andrew was a leader in Towers Perrin’s Strategy and Organization Practice. He also served as a 1st lieutenant in the United States Marine Corps. Andrew holds an MBA from Georgetown University and a BA in philosophy from Reed College. He is also on the Board of InsideCircle.org where he is actively involved with incarcerated and formerly incarcerated people who are leading positive change in their communities. Andrew is a dedicated family man, Ironman triathlete, accomplished big mountain skier, and avid supporter of a variety of causes aimed at raising consciousness on the planet.

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Darren Gold

As a former CEO and long-time board member, Darren brings personal leadership experience and years of advising, coaching, and mentoring senior leaders to his work with organizations. Darren’s approach to leadership is premised on the importance of personal mastery and deep self-awareness. Darren shares his thought leadership in his best-selling book, Master Your Code: The Art Wisdom and Science of Leading an Extraordinary Life (2019). He also delivered a recent TedX talk: The Secret to an Extraordinary Life. Prior to joining Trium, Darren was the CEO of two education companies, Heald College and Delta Career Education, and a Partner in two San Francisco-based private equity firms, Gryphon Investors and Genstar Capital. Earlier in his career, Darren worked as an engagement manager at McKinsey & Co. and an attorney at Irell & Manella. He has a BA from UCLA and a JD from the University of Michigan.


Diana Dosik

Diana Dosik provides executive coaching, leadership team re-wiring and organizational design and transformation consulting services to leaders of complex organizations with multiple stakeholders. Diana is passionate about removing emotional and interpersonal roadblocks from work so that people can just enjoy doing the work they love and do it well. Prior to becoming a coach, Diana was a Partner at The Boston Consulting Group, where she advised clients on a range of topics including organizational design, organizational behavior, culture design, leadership success, and organizational effectiveness. Diana consulted with Fortune 500 companies across industries over 16 years, with particular expertise in healthcare and financial services. Her deep focus on organizational issues for C-suite leaders led to her talk on the TED stage and to several articles about organizational design and organizational health. Diana also served as an internal coach, helping teams perform better and serve clients more effectively. Her passion for coaching and mentoring in particular led to her executive coaching training at Newfield Network and subsequent training in Positive Intelligence. Diana was Phi Beta Kappa at Yale University, and earned her MBA from Harvard Business School. Diana is experienced with various diagnostic tools (e.g. Hogan, MBTI, Enneagram, DISC, PQ).  Diana is a hot yoga devotee, and lives in New York City with her husband and three children.

3 Distinctions of Trium

Choosing a partner to help unlock your organization's potential is a critical decision because it's the beginning of an intimate relationship. These qualities set Trium apart from other consultancies:

We design our work around your unique business context—your strategy, leadership, and culture challenges—and what’s required to unlock the potential of your organization. By balancing bold ambition with gritty realism, we simplify the path to achieving breakthrough results.

We give leaders different ways to think about strategy, leadership, and organizational development that free them from previous ways of thinking and leading. Multidisciplinary by design, our deep knowledge of business strategy, human behavior, organizational transformation, and high-performance coaching helps leaders embrace new ways of leading to match the context in which they’re operating.

Our decades of experience allow us to skillfully hold up the mirror to help leaders better understand how they’re organized, what limits them, and how they can become truly great in their roles. We're fiercely committed to truth-telling and transparency, which we use as the catalysts for rapid growth and improvement.

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