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Manoj P. Singh is the former chief operating officer and global managing director at Deloitte Touche Tohmatsu, Ltd.  Prior to his mandatory retirement in June 2015, Singh’s responsibilities included leading various Deloitte initiatives, including setting global strategy, directing investments globally, leading areas such as finance, global technology, knowledge management, branding, and guiding country leadership in high-growth markets such as China, India, Africa, Southeast Asia, Mexico and Germany.

Eduardo Castellon has two decades of experience helping public sector clients—from the U.S. Agency for International Development (USAID) and the U.S. Postal Service (USPS) to the Department of Housing and Urban Development—grow and refine their operations and impact. He has extensive experience delivering consulting expertise focused on artificial intelligence (AI), supply chain, procurement, financial management, and advanced analytics. His technological, consultative, and entrepreneurial skills help clients find new ways to address challenges ranging from affordable housing to homelessness to guaranteed income. He also has extensive expertise in technical assistance and implementation (TA&I) approaches. And his management experience includes developing high-performing teams through skills and career development and succession planning.

Jeffrey (Jeff) Leone is a senior growth leader with more than 20 years of experience leading growth teams and managing complex business development functions such as capture, bids and proposals, market intelligence and competitive assessment, pipeline development, and sales analytics.  Leone’s experience cuts across a range of U.S. domestic and international development markets at Abt and at large, global companies. 

Kevin O’Reilly is Abt’s principal accounting officer and a member of both the Pension and 401(k) Advisory Committees. He oversees financial reporting, global tax compliance, government accounting compliance, retirement services, billing, general accounting, payroll and accounts payable. O’Reilly joined Abt Global from Ropes & Gray, LLP, an $800-million law firm, where he was director of finance. Earlier in his career, O’Reilly spent more than 12 years in progressively more responsible roles at Private Healthcare Systems, Inc. He began as manager of accounting and was vice president and controller before the company was sold. O’Reilly also serves as the chairman of the advisory board at St. Francis Xavier School.

Jane Pepperall is a senior health professional with over 30 years of experience in global health policy development and in supporting national health sector development in the Pacific, Asia, and Africa. She has focused on strategy and investments to strengthen health systems and health financing. Jane worked for the United Kingdom Department for International Development (DFID) (now the Foreign, Commonwealth and Development Office) for 20 years, including health adviser postings in Uganda, Kenya, Zimbabwe, Lesotho, Pakistan, and the Pacific. More recently she has been providing health strategy, policy, and technical advice to the Australian Department of Foreign Affairs and Trade (DFAT).

Gerald Adolph is an expert in growth strategy, acquisition strategy and merger integration planning for corporate and mission driven organizations. He led the Global Mergers & Restructuring Practice and was elected senior partner over a 35-year career with Booz Allen Hamilton and its successor strategy companies.Adolph was one of the lead practitioners and developers of Booz's very successful capabilities-driven approach to strategy.  During his consulting career he has primarily focused on assisting clients with growth strategies, new business development, innovation strategy and business redefinition. He often works with companies/entities undergoing very significant industry disruption.

Dr. Reerink has more than 25 years of experience in promoting gender equality and social inclusion in international development, with a strong focus on the Asia-Pacific region.

Gary L. Perlin, the retired chief financial officer of Capital One Financial Corporation, is the non-executive chairman of Abt Global’s Board of Directors.Perlin has more than three decades of experience in senior finance roles in for-profit and not-for-profit organizations. As CFO of Capital One – one of the largest financial services companies in the nation – Perlin was responsible for the company’s overall financial management. He was named “Best Finance Company CFO” for four years by Institutional Investor magazine between 2007 and 2011.

Lakshmi Shyam-Sunder is the former Vice President and World Bank Group Chief Risk Officer (2014-2024). Lakshmi was previously Chief Financial Officer at the Multilateral Investment Guarantee Agency (MIGA), and Director of Risk and Financial Policy at the International Finance Corporation both also part of the World Bank Group.

Michael R. Anderson is Chief Executive Officer of MedAccess, a not-for-profit social-finance company based in London. He has expertise in global development, health, nutrition, and climate issues. Anderson has worked in the public, private, and nonprofit sectors in Africa, the Middle East, and India. He held multiple roles within the U.K.’s Department for International Development (DFID) from 2003 to 2013, the final one being Director General . He subsequently became the first salaried CEO of the Children’s Investment Fund Foundation, one of the largest philanthropies in Europe.