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Our Leadership

Amit Sevak

President & Chief Executive Officer

Amit Sevak, CEO

As President and CEO of ETS, Amit Sevak leads the largest private educational assessment organization in the world, with 20,000 employees across 200 countries serving over 50 million people each year.

Sevak has been a driving force in education, learning and workforce development around the globe. He has led the University of Europe in Madrid in Spain, INTI International University in Malaysia and Universidad Tecnológica de México (UNITEC) in Mexico. His transformational style of leadership consistently led to innovation, better learning and improved job prospects for hundreds of thousands of students and workers.

Sevak has long been a coach for EdTech CEOs. He has served on numerous nonprofit boards, including Cambiar Education, CitiBridge and Education Design Lab. In 2017, he founded Mindset Global, an education investment firm. His early career included roles as a researcher, professor and advisor.

Sevak graduated with a bachelor's and master's degree from the University of Chicago and earned his master's in business administration (MBA) from Harvard Business School. He is a regular speaker on the future of education and work, educational measurement and civic engagement. He is married with three kids and splits his time between Princeton, New Jersey and the Washington, D.C. area.

Jack Hayon

Senior Vice President and Chief Financial Officer

Jack Hayon

As Senior Vice President and Chief Financial Officer, Jack Hayon is responsible for maintaining ETS's financial health and for positioning the company to grow and diversify.

Hayon joined ETS in 2003 as Group Executive Director of Finance and Administration and was promoted to Vice President in 2005, and to his current position in 2011. He has overseen many projects that have strengthened ETS's finances, financial controls and service quality.

Previously, Hayon was Vice President of Finance for The Boston Globe and served as Vice President of Corporate Internal Audit and of Corporate Information Systems for the New York Times Company.

Hayon earned an MBA in computer applications from the New York University (NYU) Stern School of Business and a bachelor's degree in accounting and computer applications from the NYU School of Business & Public Administration. He is a certified public accountant.

Sheree Johnson-Gregory

Vice President, Deputy General Counsel and Chief Diversity Officer

Sheree Johnson-Gregory

As Vice President, Deputy General Counsel, Sheree Johnson-Gregory oversees the General Counsel's Office attorney staff, corporate contracts, copyright and permissions, trademarks, domains and infringements and the Office of Testing Integrity. She is also the company's Chief Diversity Officer, reporting to the CEO.

Johnson-Gregory joined ETS in 1985 as Assistant General Counsel and was subsequently promoted to Associate General Counsel and Associate Vice President. She also served as the Director of the Office of Disability Policy and Chair of ETS's Board of Review. Prior to ETS, Johnson-Gregory held positions as Assistant Corporation Counsel and Municipal Prosecutor in the Newark Legal Department and worked for a defense contractor as the Equal Employment Opportunity Officer.

Johnson-Gregory graduated from Bennett College and earned her Juris Doctorate at Columbia University. She is licensed to practice law in New Jersey.

Ida Lawrence

Senior Vice President, Research & Development

Ida Lawrence

As Senior Vice President, Research & Development (R&D), Ida Lawrence oversees functional areas including Assessment and Learning Technologies Research and Development, Research and Measurement Sciences, Institute for Student Achievement (ISA), National Assessments Program Coordination including National Assessment for Educational Progress (NAEP), the Center for Global Assessment and Human Capital, Professional Standards Compliance and Disability Policy, the Center for Strategic Research and Development Alliances, and the R&D Library.

She began her career at ETS in the Statistical Analysis area, where she designed and directed measurement work for the Preliminary Scholastic Aptitude Test/National Merit Scholarship Qualifying Test (PSAT/NMSQT®) and the SAT® tests. Before her appointment as Senior Vice President, she served as Executive Director of the SAT and PSAT/NMSQT programs, Director of Program Research in R&D and Vice President of the Assessment Development division.

Lawrence holds a bachelor's degree in psychology from Barnard College, and a master's degree and doctorate in educational psychology from New York University.

Lawrence also serves as the Board Chair for the Institute for Student Achievement Foundation.

Sara Lester

Vice President, Human Resources & Learning

Sara Lester

As Vice President, Human Resources & Learning, Sara Lester is responsible for all human resources processes, including but not limited to employee relations, learning, development, talent management, organizational design, succession planning, recruiting, compensation, benefits, rewards, performance management and HR information systems.

Lester joined ETS as an Assistant General Counsel. Prior to joining ETS, she was an attorney at D. E. Shaw & Co., L.P., a global investment and technology firm and hedge fund in New York, where she advised management on human resources, employment and litigation matters. She also was a litigation associate at the international law firm of Cleary Gottlieb Steen & Hamilton LLP, and a federal law clerk for the Hon. Richard M. Berman of the Southern District of New York.

Lester has a bachelor's degree in Literature from Yale and a Juris Doctorate from the Duke University School of Law.

Scott Nelson

Senior Vice President of Global Strategy & Growth and Chief Marketing Officer

Scott Nelson

Scott Nelson is Senior Vice President of Global Strategy & Growth and Chief Marketing Officer. He is responsible for the corporate strategy, marketing and growth efforts from new products to corporate development. He also oversees the GRE® Program and higher education division, as well as the Global Language Learning, Teaching and Assessment division which includes the TOEFL® and TOEIC® programs as well as the ETS Preferred Network of distributors.

Nelson joined ETS in 2006 as Associate Vice President of Communications & Public Affairs and advanced through the division to become Senior Vice President of Strategy, Marketing & Growth before being named to his current role. Previously, he held leadership positions in communications, public affairs and marketing at DuPont.

Nelson is a board member of Junior Achievement of New Jersey. He has earned a Six Sigma Green Belt and holds a bachelor's degree in psychology.

Michael Nettles

Senior Vice President and the Edmund W. Gordon Chair for Policy Evaluation & Research

Michael Nettles

Senior Vice President and the Edmund W. Gordon Chair for Policy Evaluation & Research Michael Nettles has a national reputation as a policy researcher on educational assessment, student performance and achievement, and educational equity.

In August 2014, President Barack Obama appointed Nettles to the President's Advisory Commission on Educational Excellence for African Americans. He was appointed by two U.S. Secretaries of Education to the National Assessment Governing Board (NAGB), which oversees and develops policies for the National Assessment of Educational Progress (NAEP).

Additionally, he serves on the Southern Education Foundation (SEF) Board of Trustees, the Board of Trustees of the Peddie School, and on the Board of Directors of both the National Association for Equal Opportunity in Higher Education (NAFEO) and the Urban League of Middle Tennessee.

Nettles has a bachelor's degree in political science from the University of Tennessee, master's degrees in political science and higher education, and a Ph.D. in education from Iowa State University.

Steve Santana

Chief Information Officer

Steve Santana

Steve Santana is the Chief Information Officer at ETS. In this role, he leverages his extensive IT and product development experience to drive the development of digital products that enhance ETS’s offerings and, ultimately, learners’ experiences. With educational assessments increasingly offered in a digital format to expand access, Santana’s leadership in user experience and cloud native development keeps ETS at the forefront of technological innovation in a transforming education industry.

Prior to joining ETS in 2021, Santana served as Senior Vice President and Chief Technology Officer at Pearson, and held positions at Ciena®, Nortel and Apple®.

Santana earned his bachelor of arts degree in music technology from San Jose State University.