John B. Beckworth

Mr. Beckworth has served on our board since 2009. Mr. Beckworth practiced law in Houston for thirty years from 1983 until 2013. He commenced his law practice as an associate and then as a partner at Fulbright & Jaworski LLP, before leaving to start his own firm. Mr. Beckworth co-founded WattBeckworth in Houston where he remained a partner until March of 2015. In 2013, Mr. Beckworth left active law practice to become an Associate Dean at the University Of Texas School Of Law. He has served as Chairman of the Board of Trustees of the Kinkaid School in Houston and he is a Life Trustee of the school. He is a former Trustee of the University of Texas Law School Foundation, and he has served as President and Chairman of the Board of the University of Texas Ex Students' Association. Mr. Beckworth also operates family ranching, oil and gas, and investments interests. Mr. Beckworth received Bachelor of Arts and Juris Doctor Degrees from The University of Texas at Austin and The University of Texas School of Law. Mr. Beckworth's legal and business experience qualify him to serve on our board.

Board member since 2009

Denise Castillo-Rhodes
Denise Castillo-Rhodes is Chief Financial Officer of Texas Medical Center, where she oversees accounting, finance, billing and collections, and tax compliance. Outside of her work at Texas Medical Center, Ms. Castillo-Rhodes serves on several advisory boards, including Post Oak Montessori School, The Audit and Finance Committee of Medical Bridges, Houston Livestock Show and Rodeo Ticket Services, Greater Houston Partnership’s Executive Women’s Partnership, and Greater Houston Women’s Chamber of Commerce. Ms. Castillo-Rhodes holds a Bachelor of Business Administration from the University of Texas at El Paso and a Master of Business Administration from the University of St. Thomas. She is a certified public accountant and is a member of the Texas Society of Certified Public Accountants and American Institute of Certified Public Accountants.

Board member since 2020

Matthew H. Hartzell

Mr. Hartzell has served on our board since our acquisition of Independence Bank in 2013. Prior to the acquisition, Mr. Hartzell served Independence Bank as the Vice Chairman of the board, the Chair of both the IT committee and the compensation committee for over five years each, and a member of the executive committee. Mr. Hartzell is presently Chief Administrative Officer of N.F. Smith & Associates, L.P., an independent distributor of computer hardware components, and served as their Chief Operating Officer for the six years prior. For the past 17 years, he has also served as General Counsel of Valid Management, LLC, one of the holdings in N.F. Smith's diversified portfolio of technology businesses. Prior to joining Valid Management, Mr. Hartzell was a shareholder and associate with Hirsch & Westheimer, P.C., for more than a decade. Since 2010 he has served as a member of the SAE G-19 Committee, a committee dedicated to promulgating standards for the mitigation of counterfeit parts in electronic part purchasing. Mr. Hartzell is past president and a longtime board member of the Woodlands Heights Civic Association. He received a Bachelor of Arts degree from St. John's College, Annapolis, Maryland and a Juris Doctor degree from the University of Houston. Mr. Hartzell's extensive legal experience and business skills qualify him to serve on our board.

Board member since 2013

Frances H. Jeter

Ms. Jeter has served on our board since 2014. She has more than 25 years of experience in marketing, public affairs and business and nonprofit management. Ms. Jeter is a Managing Director and head of the Houston office for Sard Verbinnen, a strategic communications firm. Ms. Jeter previously served as Group Vice President of Internal and External Affairs for Spectra Energy. Before joining Spectra Energy, Ms. Jeter served as Chief Marketing Officer for Bracewell & Giuliani LLP and served as Vice President of Public Affairs for Duke Energy Gas Transmission, a predecessor company of Spectra Energy. She is a Life Trustee and a past Chair of The Kinkaid School Board of Trustees in Houston and a former Trustee of The Hockaday School in Dallas. She is the founding Chair of Houston's The Fay School and is also a former member of the Board of Directors of the Greater Houston Community Foundation and St. Luke's Episcopal Health Charities, among several other non-profit organizations. Ms. Jeter received a Bachelor of Arts degree from the University of North Carolina at Chapel Hill. Her extensive experience in the public company arena is leveraged to assist the Branding Committee in all areas of marketing and public relations. Her attention to detail and working knowledge of corporate and Board governance matters are well-suited to her participation on the Corporate Governance and Nominating Committee.

Board member since 2014

William S. (Nick) Nichols III

Mr. Nichols is one of the organizers of the Bank and has served on our board since 2008 and the board of the Bank since 2007. He is the Chairman of our audit committee. Mr. Nichols recently retired as the President of Suncor Companies, LLC, a real estate development company that focused primarily on the development of freestanding retail facilities throughout the United States. He is also general partner of numerous real estate development partnerships. From 1974 to 1984 he worked as an audit principal at Ernst & Young. He has held numerous board appointments, including advisory director at Community Bank, Katy, Texas. Additionally, he is the founder and director of the Nichols Foundation, a foundation to provide college scholarships to students on a need basis. He also serves on the development council of the Mays Business School at Texas A&M University. Mr. Nichols is a Certified Public Accountant and is a member of the American Institute of Certified Public Accountants and the Texas Society of Certified Public Accountants. He received a Bachelor of Business Administration degree from Texas A&M University. Mr. Nichols' understanding of the Houston business market and leadership experience qualify him to serve on our board.

Board member since 2008

Raimundo Riojas A.

Mr. Riojas is currently the Chief Executive Officer of Grupo Duwest, a group of international companies dedicated to the manufacture and distribution of agricultural inputs. He holds a Chemical Engineering degree from Rice University and a Master of Business Administration from Harvard University. Mr. Riojas was previously a former director of the Chamber of Industry in Guatemala and has served as a board member in regional, privately-held companies.

Board Member Since 2021

Luis Garza Villarreal

Luis Garza Villarreal is President & CEO of Vigavi Realty LLC, an industrial real estate investment and development firm based in Houston, TX. In addition, Mr. Garza Villarreal serves as President & CEO of a European Scaffolding and Real Estate company. His business acumen includes Finance, M&A and International Trade. Mr. Garza Villarreal graduated from the University of Navarra and from Oxford University with a degree in Financial Strategy.

Advisory Director since 2015

Louis A. Waters Jr.

Louis A. Waters Jr. joined our board in October 2018 in connection with our acquisition of Post Oak Bancshares, Inc., where he was a director of both Post Oak Bancshares, Inc. and Post Oak Bank, N.A. since 2005. Mr. Waters currently serves as President of Waters Group Houston, a private investment company that he founded in 1990; President of FloodBreak Automatic Floodgates, a manufacturer of flood protection systems for commercial and residential applications that he founded in 2001; and Chairman of PV Rentals. Leasing and Sales, a provider of specialty automobile, van and truck rentals in the Greater Houston area, since 2011. Mr. Waters currently serves as a director of Edgeworth Construction Products LLC, as well as Bandera Corridor Conservation Bank, and has previously successfully built and sold several other operating companies. Mr. Waters received a Bachelor of Science in mechanical engineering from Rice University and a Master of Business Administration from INSEAD. 

Board member since 2018

Janet S. Wong
Janet S. Wong is an experienced strategic business executive with a demonstrated ability to lead people, processes and organizations. She is an independent board director and Audit Committee Chairman of Enviva Partners (NYSE: EVA), a leading U.S. manufacturer specializing in sustainable energy alternatives for customers in Europe and Asia. Her qualifications include recognition as an experienced Financial Expert by the Securities and Exchange Commission and the New York Stock Exchange. In December 2018, Directors & Boards magazine named her to its Directors to Watch list in recognition of her board leadership experience. Ms. Wong also serves on the Advisory Board for BIGControls, a technology company providing business intelligence and data analytics in a cloud-based software solution for managing business incentives. One of her lead roles is building customer relationships and business development. She is a retired senior partner with KPMG, a global professional services organization, where she spent the majority of her career based in the San Francisco and Silicon Valley offices. Her industry experience includes technology, manufacturing, financial services and consumer products. She has been a trusted advisor to global companies, working with CEOs, CFOs, Board Directors and Audit Committees. Ms. Wong is a licensed Certified Public Accountant. She is a member of the American Institute of Certified Public Accountants, National Association of Corporate Directors and Women Corporate Directors. Ms. Wong earned her Master of Professional Accountancy from Louisiana Tech University and Master of Taxation from Golden Gate University in San Francisco.

Board member since 2020

F. Charles Brunicardi, M.D.

Dr. Brunicardi is one of the organizers of the Bank and has served on the Board since 2008. Dr. Brunicardi is currently the MCO Alumni Professor and Chair of the Department of Surgery, and Director of the Cancer Program at the University of Toledo College of Medicine and Life Sciences. He is also the Academic Chief of Surgery for the ProMedica Health System. From 1995-2011, he was the DeBakey Professor and Chair of the Michael E. DeBakey Department of Surgery at the Baylor College of Medicine, then served as the Moss Professor and Vice Chair of the Department of Surgery at UCLA from 2011-2016. His clinical expertise includes gastrointestinal surgery and his research focuses on precision medicine and personalized surgery for pancreatic cancer. Dr. Brunicardi has co-authored 283 publications and is the Editor-in-Chief of Schwartz's Principles of Surgery textbook since 2000.

Advisory Director since 2008

Jon-Al Duplantier

Jon-Al Duplantier was previously the President of Rental Tools and Well Services at Parker Drilling Company where he was responsible for the company’s Rental Tools and Services business unit. As a member of the company’s executive team, he was an active contributor in discussions regarding strategy, business execution and capital allocation. He began his career as a patent attorney in the DuPont legal department before being transferred to Conoco Inc., then a wholly-owned subsidiary of DuPont, where he managed the legal affairs of two of the company's largest subsidiaries, developed cultural awareness skills, addressed commercial and regulatory disputes, labor and employment issues, insurance programs, as well as anti-bribery and economic sanctions compliance. Mr. Duplantier’s broad experience across commercial, governance and legal aspects of business along with his professional and leadership experience qualify him to serve on Allegiance’s board, as well as on the Audit Committee.

Board Member Since 2021

Dr. Robert Ivany

Dr. Ivany recently retired as President of the University of St. Thomas, a position he held since 2004. Prior to that, Dr. Ivany served as an adjunct professor in Executive Education at the Graduate School of Business at Columbia University. Dr. Ivany's background also includes a distinguished career in the military culminating in the rank of Major General in the Army; service as Army Aide to President Reagan and Commandant of the U.S. Army War College. Dr. Ivany sits on the Red River Athletic Conference Board and is the immediate past Chairman of the Board for the Independent Colleges and Universities of Texas. He also served on the Mutual of America Capital Management Corporation Board of Directors from 2004 to 2009.

Board member since 2017

George Martinez
George Martinez serves as Chairman of Allegiance Bancshares, Inc. and Vice Chairman of Allegiance Bank. He was co-founder in 1974, and served from 1980 to 2001 as Chief Executive Officer of a multi-billion dollar publicly traded financial institution. George is a former director of Cornerstone Building Brands, a company traded on the NYSE. Active in the Houston community, he serves as an emeritus member of the Council of Overseers for the Jesse H. Jones Graduate School of Management at Rice University. Martinez was inducted into the Texas Bankers Hall of Fame in April 2017 and recognized for his valuable contributions to the Texas banking industry. In 2004, he was awarded the Ethical Leadership in Action Award from the University of St. Thomas Center for Business Ethics. George earned a B.A. degree in Business Administration and Economics from Rice University in 1963.

Board member since 2008

Steven F. Retzloff

Steven Retzloff serves as Chairman of Allegiance Bank and CEO of Allegiance Bancshares, Inc. With 30 years of Houston banking experience, he served as a Director and twice as Chairman of a publicly traded multi-billion dollar financial institution. His past work experience also includes General Motors, Bristol Myers, Retzloff Capital Corporation and CEO of Travis Body & Trailer, Inc. Additionally, Steve serves on the Boards of the Houston Food Bank, Greater Houston Partnership, Open Door Mission, Faith in Practice, and as Vice President of the Kinkaid School Investments Foundation. As a native Texan and a lifelong Houstonian, he received an Industrial Engineering degree from The Georgia Institute of Technology in 1979 and an MBA with distinction from the Babcock Graduate School of Management at Wake Forest University in 1981.

Board member since 2008

Fred S. Robertson

Mr. Robertson has served on our board since 2011. Mr. Robertson has over 30 years of experience overseeing institutional and retail investments. He has managed fixed income investments and designed extensive quantitative models for bond management. For the past five years, Mr. Robertson has been managing his personal investments. Mr. Robertson holds a number of board appointments, including with the Texas Presbyterian Foundation and the Houston Firefighters Relief and Retirement Fund, and volunteers with many organizations in Houston. Mr. Robertson received a Bachelor of Science from Cornell University and a Masters of Business Administration in finance from the College of William and Mary. Mr. Robertson's significant experience in the banking industry and leadership skills qualify him to serve on our board.

Board member since 2011

Ramon A. (Ray) Vitulli III

Ramon (Ray) Vitulli serves as Chief Executive Officer of Allegiance Bank and President of Allegiance Bancshares, Inc. He has over 30 years of banking experience, getting his start as a loan review examiner at Charter National Bank in Houston, then moving to Sterling Bank until joining Allegiance Bank in 2007, prior to the bank’s opening. Ray serves on the Texas Bankers Association Board, the St. Pius X High School Foundation and School Board, the CHRISTUS Foundation for HealthCare Board, and the Bluehenge Capital Partners Limited Partner Advisory Board. He is a graduate of The University of Texas at Austin with a Bachelor of Business Administration in Finance.

Board member since 2014

Roland L. Williams

Roland L. Williams joined our board in October 2018 in connection with our acquisition of Post Oak Bancshares, Inc., where he was the Chairman, President and Chief Executive Officer of both Post Oak Bancshares, Inc. and Post Oak Bank, N.A. Mr. Williams was a founding member of Post Oak Bank and has over 40 years of banking experience. Prior to founding Post Oak Bank, Mr. Williams served as Chairman, President and Chief Executive Officer of Langham Creek National Bank and Market Chief Executive Officer of SouthTrust Bank. In addition, Mr. Williams previously served as a member of the Federal Reserve Bank of Dallas Community Depository Institutions Advisory Council and a board member for the Texas Bankers Association. Mr. Williams has also served as an advisory board member and board member of Outreach Center of West Houston and on the Bauer College of Business Banking Certificate Board Committee at the University of Houston. Mr. Williams received a Bachelor of Science degree in business administration from McNeese State University in Lake Charles, Louisiana, and graduated from the Southwestern Graduate School of Banking at Southern Methodist University.

Board member since 2018