ACS Board of Trustees Biographies

Leslie Bellas, Chairperson

Leslie Bellas, with her husband and two children, has lived in Abu Dhabi for eight years. She has a son who graduated from ACS in 2017 and a daughter in grade 11.
Leslie earned her Bachelor of Arts from Barnard College, Columbia University. She subsequently received her law degree from Georgetown University Law Center. Leslie has more than 20 years of legal experience. During her career in Washington, DC, she worked closely with private industry, the U.S. federal government, and non-profit organizations. Upon arriving at ACS, Leslie jumped right into the community by serving as parent volunteer in her daughter’s classroom, helping with PTA activities, and serving as a MS liaison. Leslie twice co-chaired the New Family Dinner and she continues to speak at the HS Career Day and volunteer at ACS events. Leslie currently works as a consultant to RTI International, providing policy and regulatory advice to the Environment Agency – Abu Dhabi.

Leslie is serving her third year as an Elected Trustee and is the Board Chair. She chairs the Governance Committee and the Government Relations Task Force, and serves as a member of the policy committee. Leslie was first appointed to the ACS Board as a selected Trustee in 2011 and served as its Secretary. Leslie’s legal experience and prior Board service will help the School continue to implement its strategic vision and navigate legal and regulatory requirements.


Matt Ayoub, Vice Chair

Matt Ayoub grew up in Abu Dhabi, arriving in 1979 and graduating from ACS in 1994 as part of our second graduating class. He returned to Abu Dhabi in 2010 and currently has three children at ACS in KG2, 6th and 7th grade, providing the Board with a unique perspective as an ACS Alumnus, parent, and long-time community member.

Matt is employed by Mubadala, a government owned investment and development company that supports the growth of a dynamic and diversified UAE economy. Matt currently serves as a member of the organization’s Human Capital leadership team with a specific focus on the intersection of people and business, as well as company culture and longer-term organization development. Prior to joining Mubadala Matt worked in a range of roles in the life sciences and semiconductor industries, spending time in Europe, Asia, and North America, including San Diego which the family considers home when not in Abu Dhabi.

Matt holds a Bachelor of Science in Business Administration from Boston University and an MBA from the University of San Diego, where he served as the President of the Graduate Business Students Association. When not working, Matt enjoys taking his family to remote parts of the world to explore unique cultures and ecosystems.


Eric Hilgendorf, Secretary

Eric, with his wife and 3 children, has lived in Abu Dhabi since 2010. His oldest son graduated from ACS in June 2014 and his daughter who graduated in 2017. His youngest is in 8th grade.

Eric is Associate Dean of Community and Education Engagement at NYUAD. He works with the external community at large via original programming designed to enhance NYUAD exposure to and interaction with K-12, corporations and influencers.

Eric earned his BA from University of Tennessee and his MiP & Ph.D from Vanderbilt.

Eric is serving his third term as an elected Trustee on the Board after serving as Vice-Chairperson for one year in his previous term. Eric is a member of Governance and Institutional Advancement.


Mutasem Dajani, Treasurer

Mutasem Dajani has lived in Abu Dhabi since 1994. He is joined with his wife and three children who are in KG1, 5th and 7th grades. Mutasem graduated from UC Berkeley in 1994 with a BA Economics, CPA. He is currently a partner with Deloitte.

Mutasem previously served as a selected Trustee on the Board. This will be his 6th year serving on the board and was previously a Chairperson.






Salem Al Noaimi, Member

Salem Al Noaimi is a UAE National from Abu Dhabi and now serving his fourth year on the Board. He and his wife have three children in grades 6th, 4th, and 1st grade. Salem received his degree in Finance and International Business from Northeastern University in 2001. He is currently the CEO and Managing Director at Waha Capital.







Damon Hewlin, Member

Damon Hewlin has lived in Abu Dhabi Since 2006 along with his wife and two daughters. His eldest daughter DeAnna is in grade 9 and his younger daughter Gabi is in grade 6.

Damon earned his BA of Architecture and BA of Science in Environmental Design degrees from Ball State University College of Architecture in Indiana, USA.

Damon is a Principal and Owner of Meticulous Design + Architecture with offices based in Indiana, USA and here in Abu Dhabi, UAE. With over 20 years of architecture experience, he has had the privilege to work on several high profile projects such as the Masdar Institute of Science and Technology. Damon and his architecture practice are passionate about doing work that is meaningful, purposeful, and impactful.

Damon has volunteered and participated in numerous ACS activities to support the community spirit of the school. His desire is to positively impact peoples lives wherever and whenever he can.


Muhannad Qubbaj, Member

Muhannad is a Senior Managing Director, Private Equity, of Gulf Capital, one of the leading alternative Asset manager in the Middle East. Mr. Qubbaj leads deal sourcing & origination for the Funds, deal screening and global fundraising activities, as well as the oversight and management of all investor relations. Before joining Gulf Capital, Mr. Qubbaj was a Senior Principal at Investcorp International, where he was responsible for marketing and fundraising in the GCC and the UK, specializing in private equity, as well as a UK-based Senior Investment Advisor at Morgan Stanley and Investment Advisor at the Abdul Latif Jameel Group, one of the largest family investment offices in Saudi Arabia.

Mr. Qubbaj holds a B.S. in chemical engineering from the Massachusetts Institute of Technology (MIT), with concentrations in creative writing and economics and has been an educational counselor for the university for over two decades. He is also an Endeavour mentor and sits on several related advisory boards. Mr. Qubbaj is a board member for the Middle Eastern chapter of the MIT Enterprise Forum.

His daughter recently graduated from ACS in 2018 and has a son in 10th grade and daughter in KG1.


Adib Mattar, Member

Adib Mattar is the Head of Private Equity for Mubadala Capital. Prior to joining Mubadala in 2008, Adib was an investment banker at Credit Suisse in New York. Adib graduated cum laude from the College of William & Mary in Virginia with a BA in International Relations and he received an MBA and Masters of Science in Foreign Service from Georgetown University in Washington DC. He is an ACS Abu Dhabi Alumni Class of 1995. Adib is also an Aspen Institute Fellow.

He has 3 children at ACS, Raya, Ramizi, and Aya





Villiers Terblanche, Member

Villiers is a New York project finance lawyer representing developers or financiers of large long term infrastructure projects, such as power plants (nuclear, solar, fossil fuel, hydro), airports, seaports, telecom networks and toll roads. For the past 15 years he has also advised on the development of social infrastructure projects, such as university and school campuses, hospitals and theme parks. In the UAE, he advised on the development of the Sorbonne and Zayed University projects in Abu Dhabi and number of well known private school campuses. Since moving to the UAE Villiers has advised several sovereign wealth enterprises in the region on a wide range of transactions and corporate governance matters, including the implementation of new corporate governance codes. He also advise boards of publicly traded entities on transactional, governance and compliance matters.

Villiers has two children at ACS, Ben and Sam.


Scott C. Bolz, US Embassy Representative

Scott Bolz arrived at Embassy Abu Dhabi in September 2016, having previously served as press attaché and spokesperson for the U.S. Mission in Iraq. Prior to that, he served in Kuwait as deputy economic officer from 2012-2014, and as cultural attaché from 2011-2012. A public diplomacy officer by cone, he also worked in Indonesia as an assistant cultural attaché. His other overseas postings include two tours in Iraq as a political officer, and a consular tour in Kuwait. Scott also served as a Peace Corps volunteer in Yemen from 1992-1994.

Scott received an M.A. in Arab Studies from Georgetown University, and a second M.A. in international education from George Washington University, with a particular focus on the Middle East and North Africa.
Scott and his wife, Catherine Sweet, have a twelve-year old daughter, Olivia, who is a seventh grader at the American Community School of Abu Dhabi.