Our Leadership Team


Matthew H. Hagen


Matthew H. Hagen is a Principal Business Architect for Slalom Boston’s Strategy & Operations (S&O) practice.

Before joining Slalom, Matthew served as COO/CFO of a start-up, was “VP of Pricing & Policy” and “VP of Operations, Transformation, Finance, and Analytics” at Monster.com, and spent nearly a decade at IBM in roles spanning finance, planning, pricing, and product strategy.

A Phi Beta Kappa undergrad in Accounting, Matt also holds master’s degrees in business and psychology.

Outside of work, Matt serves on the HBS Alumni Association of Boston’s Board of Governors and is the Chairman for the HBS Alumni Angels of Boston.


John Reichenbach

Chair Emeritus

John Reichenbach, an engineer by training, has been CEO or CFO of six venture capital backed technology companies. He has raised $80mm in venture capital for these companies. The two biggest exits were e-Travel, which was sold to Oracle, and is now owned by Amadeus, and Amicas which was sold to a public company that assumed the Amicas name, and was eventually sold to IBM for $1 BB. He has also worked at United Technologies, Continental Airlines, and Becker Paribas at senior levels in nearly every function. He is an inventor on three issued US patents related to speech technology.

John led the relaunch of HBS Angels of Boston, which had been dormant for seven years. Since the February 2020 relaunch, HBS Angels of Boston has held eight pitch events and over a dozen educational events. 40 companies have presented, and Boston angels have made investments in 12 of them. HBS Angels of Boston has also teed up Smoodi, Beckon Ice Cream, BLDUP, Lupii and Moxie Scrubs for successful global syndication through HBS Angels.

In addition to his Harvard MBA, John holds a BS from Yale. He has been on the board of the Federation for Children with Special Needs since 2008, and currently serves as chair.


Andy Knott

Director of Startup Partners

Andrew Knott is a Partner in Brier Cliff Realty, LLC, a real estate development and investment company and Director of Business Development for JFK Environmental Services, LLC, an environmental consulting firm specializing groundwater hydrology and climate-change adaptation. Previously, Andrew owned and operated AVO Fence & Supply, Inc., a manufacturer, and distributor of wood, vinyl, and metal fence products. He spent the most of his career at Riverdale Mills Corp., a company he co-founded with his family in the early 1980’s. At Riverdale, a manufacturer of PVC-coated wire mesh products, he developed and sold products serving customers in a wide range of markets including aquaculture, marine, construction, and agriculture.

Andrew completed OPM-24 in 1996, an executive education program at HBS.


John Carrier


John Carrier is a Senior Lecturer in the System Dynamics Group at MIT, where he teaches Lean Operations in the Leaders for Global Operations program. He also assists companies in identifying and adopting new technologies to improve productivity, reduce risk and raise morale.

John has extensive field experience, including chemicals, automotive, oil & gas, food and beverage, and high tech operations, particularly in high risk, high reward environments.

John holds an MBA from Harvard Business School, and Chemical Engineering Degrees from MIT and the University of Michigan.


Lionel Fray


Lionel has been a consultant, entrepreneur, and executive, often focused on making technology-based businesses realize their potential.

As Vice President at Temple, Barker and Sloane and thereafter, his experience as a management consultant for many years has been with senior and top management, usually in the context of helping them deal effectively with strategic issues and decisions. Clients he has served include AT&T, BP, CBS, John Deere, DuPont, ExxonMobil, GE, IBM, Intel, PWC, and many smaller companies.

While on an extended consulting engagement at Intel, Lionel developed a planning technique called ValueMapping which was used by their M&A team. Examples of its current applications, including several recent videos, may be found at valuemap.com.

As an entrepreneur, he has been a founder of six companies, one of which went public.

As an executive, he served as CEO and Board member of two high-tech companies in the oil & gas industry: AGO, which was capitalized by ExxonMobil, and AOA Geophysics.  He negotiated exits of these companies by sales to Schlumberger and Fugro respectively.

He currently serves as Chairman of Bluebird Geosciences and of the Technology Advisory Board of Deep Imaging Technologies.

He also serves on the Board of Governors of the Harvard Business School Alumni Association of Boston and has been moderator of many of their Alumni Discussion Group meetings.  Recent topics included:  Is Our Democracy at Risk?; Should the Rich Pay More Taxes?; Climate Change—What Should  We Do?; Polarization—Can We Bridge the Chasm?; Stockholders vs. Stakeholders; The Threat of Social Media; Coming Disruptive Technologies.

Lionel holds B.S. and M.S. degrees in electrical engineering from M.I.T., and an M.B.A. from the Harvard Business School.  He has conducted seminars and published many papers and videos on business modeling and planning.

Lionel was born in Paris and is fluent in French.  He is an active tennis player and plays jazz violin.


Martha O’Mara


Dr. Martha O’Mara is a leading authority on the integration of corporate real estate planning with business strategic planning and has advised on over two billion square feet of corporate occupancy. Her firm, Place Strategy Partners, works with large occupiers on future workplace strategies.

Martha lecturers at Tufts University on the future of work and urbanization. She founded and Chairs the professional network Executive Women in Corporate Real Estate. From 2015 to 2020 she directed portfolio strategy consulting at Colliers International US, where she and her team provided organizational consulting, portfolio optimization and location strategy to multinational clients, and US institutions. Colliers acquired her firm, Corporate Portfolio Analytics, which she led for a decade, serving some of the largest corporate portfolios in the US including financial, professional services, technology and media companies, and governments.

Martha is on the Advisory Board of StateBook International, the leading economic development data integrator, serves on the Board of the Ziah Mission School (Liberia) and is a member of Harvard Angels (early-stage investors).

Earlier in her career Martha served as a professor of real estate at the Harvard University Graduate School of Design for nine years and then taught in executive development at Harvard and MIT. Her MBA, MA and PhD are from Harvard University.