Our Team

Interested in volunteering? Contact your local office head (see below).

Executive Committee

Samuel Leiter, Parthenon-EY SF, Executive Director
Samuel Leiter has been involved with Inspire since 2013, when he joined his first case team as a summer intern at Parthenon-EY. After graduating from college and returning to work for Parthenon-EY full-time, he continued to volunteer with Inspire as a case team member, case team leader, and the Client Development Head for Parthenon-EY San Francisco. As Executive Director, Samuel now works to ensure that Inspire will continue to provide meaningful impact to non-profit organizations-- and meaningful volunteer opportunities to young professionals-- for years to come. Outside of consulting, he volunteers with Hamilton Family Shelter and serves as a board member for Eth-Noh-Tec, a kinetic storytelling theater troupe, both of which are local non-profit organizations based in San Francisco. Samuel graduated from Harvard College with an A.B. in Government and a Secondary Field in Mind, Brain, and Behavior Studies.
Sidney Hilker, Bain Boston, Operations Director
Sidney Hilker is an associate consultant in Bain & Company’s Boston office. She joined Bain in the fall of 2014 and has worked across of range of industries including healthcare, financial services, and retail. Sidney has served as a Case Team Member, Case Team Leader, and as Client Development Head for Inspire at Bain Boston. Currently, she acts as Operations Director on the National Executive Committee where she supports the large and developed Inspire offices and drives the overall operational effectiveness of the organization. Outside of Inspire, Sidney has been a consulting fellow with New Sector Alliance and volunteer at Boston Children’s Hospital. Sidney graduated from Harvard University where she earned an A.B. in Government with a focus on Global Health and Health Policy.

Pragya Kakani, LEK Boston, Client Development Director
Pragya joined L.E.K. Consulting in September 2014 in Boston after graduating from Harvard College with a degree in Neurobiology with a secondary field in Global Health and Health Policy. She has been involved with Inspire since joining L.E.K. and is passionate about broadening and diversifying Inspire’s client impact. Personally, Pragya is interested in issues of quality and affordability in health care in the U.S. and helping tackle those problems with nonprofit, private-sector, and policy solutions. Pragya’s work at L.E.K. has been focused primarily on the health care sector and she recently completed a health policy internship at the Harvard School of Public Health. Pragya also helps co-lead L.E.K. Boston’s community impact initiatives including organizing volunteer events, awareness campaigns, and fundraisers across a diverse range of social issues.
Chris Ouyang, Bain Houston, Developing Office Director
Chris Ouyang graduated from the University of Kansas with degrees in Petroleum Engineering and Economics in 2014. He began his career at Bain & Company in Houston, working across industries on growth strategy, organization transformations, and product development assignments. When joining Bain, Chris also became involved in the Inspire community. He has served in three different roles: Case Team Leader, Client Development Head for the Bain Houston Inspire chapter, and the current Developing Office Director on Inspire's national Executive Committee. Chris is particularly passionate about nonprofits that give opportunities, from international experiences to robust educations, to those that struggle to afford them.

Chris Holthouse, Parthenon-EY Boston, Finance Director
Chris joined Parthenon-EY in September of 2015 after graduating from Harvard College with a degree in Social Studies. He has worked across a variety of sectors including Healthcare, Software, and Private Equity. Prior to coming on board as the National Finance Director, Chris was a case team member for an Inspire project in the K-12 education space. He is passionate not just about the work that Inspire does, but also about making Inspire a rewarding activity for all Inspire volunteers. Outside of work, Chris participates on a number of intramural sports teams and enjoys photography and trying new restaurants in Boston.
Georgia Sills, Deloitte Boston, Public Relations Director
Georgia joined Deloitte Consulting in September 2013 in the Boston office, and has a degree in Biology from the University of Richmond. Previously, she served as the Learning and Development Head for Deloitte Boston and has also served on a case as a Team Member for a special education school. At Deloitte, Georgia is passionate about strategy and social impact - in particular, how to help businesses make a better impact on their communities and the world. During her free time, Georgia spends her time finding new trails to hike and new bands to listen to.

Sivahn Barsade, Parthenon-EY LA, Knowledge Management & Technology Director
Sivahn Barsade is an associate at Parthenon-EY and recently moved to the West Coast to help grow the newly created LA office. Prior to joining Parthenon-EY, Sivahn worked for Center for High Impact Philanthropy at the University of Pennsylvania and produced a documentary about the politics of the charter school debate. Sivahn is very interested in the intersection of public goods, private markets, and the needs of local communities. She is very excited to support Inspire volunteers by cultivating Inspire’s IP and streamlining its Knowledge Management systems. Sivahn graduated from Williams College with a dual degree in Political Economy and Psychology in 2014.
Michelle Hsieh, Bain SF, Growth & Sustainability Director
Michelle joined Bain & Company in the Fall of 2014 after graduating from the University of California, Berkeley where she earned a BS in Business Administration and Environmental Economics and Policy. During her time at Bain, she has worked across industries ranging from retail to private equity in capabilities including customer strategy and performance improvement. Michelle first joined Inspire in 2014 as a case team member on Common Sense Media, an independent media reviewer for parents and promoter of safe technology use. Currently, Michelle serves as the Growth and Sustainability Director in which she helps to on-board new Inspire offices and helps to maintain volunteer sustainability while driving client results.

Office Heads


Shalini Chudasama
Bain Atlanta

Christy Lee
Bain Atlanta


Timothy Cho
LEK Boston

Stephanie Jasson
LEK Boston

Pete Edmunds
Deloitte Boston

Melanie Gaynes
Parthenon-EY Boston

Maxine Winston
Parthenon-EY Boston

Haley Fuller
Bain Boston

Ali Piltch
Bain Boston


Steven Brisley
Bain Chicago

Richard Kessler
LEK Chicago

Emily McCall
Deloitte Chicago


Shaurya Agarwal
Bain Dallas

Amanda Hatheway
Bain Dallas


Zack Timmons
Deloitte Houston

Katherine Rodriguez
Bain Houston

Hayden Foutch
Bain Houston

Los Angeles

Sophie Romans
Bain LA

Judy Kim
Bain LA

David Park

New York City

Nicole Hsieh

Kevin Hogan
Deloitte NY

Alexander Ward
Bain NY

San Francisco

Victoria Kasar
Parthenon-EY SF

Samuel Bauer
Bain SF

Kinsey Hart
Deloitte SF

Katrina Yeh

Anna Koelsch
Parthenon-EY SF

Washington, DC

Chris Bell
Bain DC

Board of Directors

Onil Gunawardana

Onil Gunawardana was one of the original four founders of Inspire while he was a consultant in Cambridge. He served as Inspire’s first Executive Director and has since served as a Board member focused on Knowledge Management. Onil holds a BS summa cum laude in Electrical Engineering from Yale, a Master’s degree in Electrical Engineering from Stanford, and a MBA from the Harvard Business School. He is currently a senior executive at AT&T Interactive in San Francisco.

Geoff Lieberthal

Geoffrey Lieberthal is a Partner at Lee Equity Partners, LLC where he helps to lead up its healthcare investing efforts. Prior to joining Lee Equity, Mr. Lieberthal was a Principal at TPG Capital. Prior to TPG Capital, he was a Vice President at Bain Capital in its North America Private Equity group. Previously, Mr. Lieberthal was a Consultant at Bain & Company, where he worked extensively in their private equity practice. Mr. Lieberthal serves as a Director of Eating Recovery Center, Key Health and Paragon Industries. Previously, Mr. Lieberthal served as a Director of Axcan Holdings, Inc. (alternate name Aptalis Holdings Inc.), and PDR. Mr. Lieberthal also worked on investments in Warner Chilcott, CRC Health, Aspen Education and Michaels Stores while at Bain Capital. Mr. Lieberthal served as a Faculty Lecturer at Stanford Business School and currently serves on the Board of Directors of Repair the World and Inspire! Inc. He received an M.B.A. degree from Stanford Business School and a degree in Engineering Sciences from Dartmouth College.

Pete Giorgio

Pete Giorgio has served a number of clients in various industries helping them to address their organizational and leadership challenges and find and unlock new sources of growth. Pete worked for Razorfish, Conduit Communications and was a Captain in the U.S. Air Force. When not acting as a human jungle gym for his children, he can be found pretending he can still be competitive in basketball leagues, digging holes on golf courses, or unsuccessfully coaxing fish into a boat. Pete earned a B.A. in Computer Science from Amherst College.

Owen Stearns

Owen Stearns is the Chief Executive Officer of Excel Academy Charter Schools, where he served as founding board chair from 2003 until 2008. Prior to joining Excel as CEO, Owen was a strategy consultant for twelve years, working with nonprofit leaders to achieve large-scale social change through innovative strategies, strong organizational design and nimble leadership teams. He comes to Excel directly from the Monitor Institute, where he was an Associate Partner focused largely on educational issues. Prior to Monitor, he was a Senior Consultant with the Foundation Strategy Group (now FSG). He was also an early board member and eventually the Co-Director of The City School, which develops young leaders from public, private and parochial schools through a service-learning curriculum. Owen is a graduate of Amherst College.

Kerry Erwin

Kerry joined Parthenon in 2003 as a consultant in the role of Principal and Case Team Leader, working on engagements across multiple industries including education, industrial, and private equity. She transitioned to her current role at Parthenon in 2007. Prior to joining Parthenon, Kerry was a C. P.A. and held the position of Audit Manager at Clark Nuber PS in Bellevue, WA, and before that with Arthur Andersen LLP, in Boston, MA, focusing on the high-tech, manufacturing and education industries.

She currently sits on the board of Inspire, a national non-profit consulting firm run entirely by volunteers from leading management consulting firms (Bain, L.E.K., and Deloitte/Monitor), that brings strategic thinking and results-oriented analysis to the leaders of schools and youth-focused non- profits around the country. Kerry has also held the board positions of Treasurer and Finance Chair for the Dover Children’s Home of Dover, NH, and on the Marketing Committee for the MIT Enterprise Forum in Bellevue, WA.

She holds a B.S. in Business Administration from the University of New Hampshire and an M.B.A. from the MIT Sloan School of Management.

Ian Tzeng

Ian Tzeng, a Managing Director in the Boston office, joined L.E.K. in 1998 and has expertise in growth strategy, regulated markets, innovation, pricing, and mergers and acquisitions. He focuses in healthcare, specifically in Biopharmaceuticals & Life Sciences, Pharma Services, and Healthcare Services. Additionally, Ian has extensive consulting and board experience with non-profit organizations in education, arts, LGBT advocacy, and public service.

He received a Bachelor of Arts degree, magna cum laude, in Chemistry from Harvard College and is a George F. Baker Scholar, Master of Business Administration with high distinction from Harvard Business School.

Simon Porter

Simon Porter is a Manager in Bain’s New York office. Simon has supported corporate and private equity clients across a range of industries focusing on issues from commercial due diligence to operating model design to post-merger integration. Prior to joining Bain, Simon worked at Deloitte Consulting in New York focusing on sales force effectiveness and human capital management. Simon earned a Bachelor of Arts in Psychology from Princeton University and a Masters of Business Administration from Harvard Business School.

Anna Muoio

Anna Muoio has worked at the intersection of business, innovation and social change for the past 15 years. She believes deeply in the power of cross-sector collaborations to move the needle on tough social problems. At Monitor Institute, a part of Deloitte Consulting, she focuses her practice on how to drive large-scale social change through galvanizing networks around a shared agenda. She has led Aligned Action efforts for organizations such as New Profit, Skoll Foundation and Venture Philanthropy Partners—designing network strategies and launching large-scale coalitions that work to drive new solutions to old problems. Anna’s work draws on a range of professional experiences—from being a Senior Writer (and 14th member of the startup team) at Fast Company magazine, leading Learning Journeys for leaders of global corporations, and launching the Social Innovation practice at a global design and innovation firm. Anna is a tireless communicator, speaking regularly at conferences on the power of aligned action and innovation to drive social change. Most recently, she is the author of GATHER: The Art and Science of Effective Convening; ENGAGE: How Funders Can Support and Leverage Networks for Social Impact; and "Wicked Opportunities" in Business Ecosystems Come of Age.

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