Our Leadership Team

Reiko Osaki | President

Reiko is the President and Founder of Ikaso Consulting. Her background in political science, experience serving 18 state government administrations, and 20 years of consulting work help her team and her clients implement collaborative change and achieve sustainable results. Reiko’s areas of expertise include complex contract negotiations, Medicaid and human services program design, operations, workload analyses and associated procurement strategies, and procurement organization reviews.

Reiko is a Director for the Executive Governing Board of the American Public Human Services Association (APHSA). She has served her alma mater in many capacities, including Stanford University’s Alumni Association Board of Directors, the Task Force for Minority Alumni Relations, the steering committee for The Stanford Challenge, and most recently as Chair of the Board of Governors for the Stanford Associates. Reiko is the mother of three daughters and enjoys experiencing the world through their eyes. Reiko holds a BA in Political Science from Stanford University.

Thomas Arnold | Director

Tom has a broad base of experience, ranging from large multi-national conglomerates and state governments, to Internet start-ups. He has counseled clients in a variety of areas, including contracting, cost control strategies, and performance measurement and reward. For 15 years, Tom has focused on serving public sector clients, including Medicaid and human services programs in five states.

Tom is an avid fly fisherman and golfer. He volunteers with the First Tee of San Francisco and was the 2012 Volunteer of the Year. Tom also serves as a Class Reunion Program Chair for Harvard Business School.

Tom holds an MBA from the Harvard Graduate School of Business Administration and a BA in Economics and Asian Studies from Colgate University.

Uday Ayyagari | Director

Uday has 15+ years of experience advising public sector clients on strategic sourcing and procurement, program structure and design, and cost control approaches, with a particular focus on performance measurement and accountability. Uday’s work has touched on diverse areas of government operations and administration including Medicaid, human services, behavioral health, complex IT systems, office equipment and supplies, and wireless services. He also has experience working with Internet and mobile technology start-ups.

Uday is a keen sports fan and spends his spare time traveling, watching movies, and researching the latest gadgets. He serves on the Western Region Council for MedShare International.

Uday holds an MBA from UC Berkeley’s Haas School of Business, where he was a Mayfield Fellow. He also received an MS in Mechanical Engineering from UC Berkeley and a B.Tech in Mechanical Engineering from the Indian Institute of Technology.

Matt Lewis | Director

Matt has over a decade of experience serving state governments and large companies on matters related to procurement, operational efficiency, and compliance. He has guided state governments in redesigning their purchasing strategies for key supplies and services, helped lead states to leverage private sector expertise for social service programs, and guided one state in the establishment and operations of its unclaimed and abandoned property amnesty program. Matt's work redesigning Indiana's hearing aids purchasing program was the subject of the August 2006 cover story of Gov Pro magazine.

Matt has also advised numerous health insurance and long-term care insurance companies on compliance and operations matters. He led the complete redesign of the claims department and procedures for a top five long-term care insurer and helped several other carriers design anti-fraud, prompt pay, privacy and related protocols. He teaches continuing legal education classes on subjects ranging from privacy in the digital age to unclaimed property and escheatment. In his spare time Matt sings in the Orpheus Club of Philadelphia, America's oldest men's chorus.

Matt holds a JD from Temple University and a BA from Haverford College, both with honors.

Kentaro Matsuura | Director

Kentaro has seven years of consulting experience in the public sector and in the healthcare industry. He has experience with state government agencies working in Medicaid and human services, specifically working on complex procurement strategies. He also has extensive experience advising top academic, community and children’s hospitals on complex strategic and operational issues related to ACOs and Health Care Reform. He also has experience working in a marketing role for a top multi-national biotechnology company. Prior to entering the consulting industry, Kentaro worked in IT and biotechnology industry research at the Japan External Trade Organization (JETRO), a Japanese government entity focused on promoting international trade with Japan.

Kentaro is an avid backcountry skier and also plays in a competitive soccer league in his spare time.

Kentaro holds an MBA from the Kellogg School of Management at Northwestern University, where he was an Austin Scholar. He also received a B.A. in Molecular and Cell Biology, with distinction, from the University of California, Berkeley.


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“I have worked closely with the Ikaso team on a variety of projects and have found the team highly strategic and analytical, bringing great value to the initiatives they lead. I look to the Ikaso team as trusted advisors and skilled tacticians, playing both roles with exceptional communications skills, great team work, and strong abilities that consistently exceed our expectations.”

- Commissioner, Department of Administration, Ikaso state government client