Bengaluru, 7th August 2026- The Board of Quest Global Engineering Services Limited, one of the largest independent pure-play engineering services companies, announced the appointment of four independent directors to its Board today: Emiko Higashi, Dr. John Hillen, Sabine Kohleisen and Rostow Ravanan. This expansion also reflects Quest Global’s commitment to diversity, with women now representing one-third of its 12-member Board, further strengthening the company’s global leadership, governance, and breadth of perspectives as it continues to scale across the Aerospace & Defense, Automotive, Energy, Hi-Tech, MedTech & Healthcare, Rail, and Semiconductor industries.
“Quest Global has always believed that solving the world’s hardest engineering problems requires diversity of thought, strong leadership, and a long-term view,” said Ajit Prabhu, Co-Founder and CEO, Quest Global. “Emiko, John, Sabine and Rostow each bring distinct experience and perspective that will help us strengthen our governance, sharpen our strategic thinking, and support our next phase of growth.”
Emiko Higashi is Founder and Managing Director of Tomon Capital Partners, with deep expertise in technology, capital markets, and cross-border M&A across Japan and the United States. She serves on the boards of Rapidus, Takeda Pharmaceutical, KLA, and Rambus.
Dr. John Hillen brings decades of leadership across aerospace, defense, and national security. He previously served as CEO of Sotera Defense Solutions and as U.S. Assistant Secretary of State for Political-Military Affairs. He currently chairs QinetiQ US and NTT DATA Federal Services and serves as a Strategy Professor at Duke University.
Sabine Kohleisen brings more than three decades of leadership experience in enterprise transformation, corporate governance, and talent development. She previously held senior roles at Mercedes-Benz, including Member of the Board of Management for Human Relations and Labor Director, and CEO of Mercedes-Benz Own Retail Germany.
Rostow Ravanan is Chairman and CEO of Alfahive, a cybersecurity and AI consulting company. He previously co-founded Mindtree Ltd., where he served as CEO and Managing Director and, earlier, as CFO, helping lead the company through its 2007 IPO.
