Board Members

Sam Haffar Co-Founder & Executive Chairman of Computex

Sam Haffar

Co-Founder & Executive Chairman

Sam Haffar is Executive Chairman for Computex Technology Solutions. As a co-founder of the company, he provides over three decades of experience in the technology industry and insightful leadership that keeps the company on the forefront. He holds a B.S. in Computer Science and serves on multiple vendor advisory boards.

ason Haffar Co-Founder & Board Member for Computex

Jason Haffar

Co-Founder & Board Member

Jason Haffar is a Board Member for Computex Technology Solutions and a co-founder of the company.  Previously Jason served as President & CEO for Computex.  He now serves as a strategic advisor to the Computex Executive team.  He holds a B.S. in Civil Engineering and is a certified PE.

John Schilsky

President & Chief Executive Officer

John Schilsky, is President & Chief Executive Officer for Computex Technology Solutions.  As CEO he responsible for providing vision, strategic direction, and managing day-to-day operations of the company. John has more than 15 years of professional experience including serving as EVP & CFO for Computex for 6 years giving him great insight to the history and growth of the company.  Prior to Computex he served five years as CFO for Teletrac, Inc., a multi-national PE backed software company and seven years in public accounting.

Lawrence Mock

Managing Partner, Co-Founder

Larry Mock is a managing partner and co-founder of Navigation Capital Partners. Larry is a board director of Atlanta-based Brown Integrated Logistics, a transportation and logistics services provider; Dallas-based specialty auto finance company Exeter Finance; Atlanta-based interactive marketing and eCommerce agency Definition 6; Atlanta-based payments solutions provider, Brightwell Payments; and Texas-based Computex Technology Solutions, a provider of IT solutions and managed services focused on hybrid IT environments. Larry was also a director of Chattanooga, Tenn.-based vending and food service provider, Five Star Food Service and Houston-based Quantapoint, a provider of 3D digital facilities to improve asset lifecycle decision making, prior to its sale. Larry was previously president and CEO of Mellon Ventures, which he founded in partnership with Mellon Financial Corporation. Under Larry’s leadership, the firm invested $1.4 billion in 140 operating companies and 70 private equity partnerships. In 1983, he co-founded and led River Capital, which invested approximately $200 million in debt and equity into successful operating companies throughout the Southeast. Its return on investment over its first ten years placed it near the top of the private equity industry.

Prior to River Capital, Larry was chief operating officer of Hangar One, a $100 million aviation sales, service, and distribution company with more than 1,000 employees in 15 locations. The company was sold to a Raytheon subsidiary in 1983 for a record industry multiple. Early in his career, he was a senior manager of Fuqua Industries, a diversified Fortune 500 company, and an associate with Booz, Allen & Hamilton. Larry has served as an officer and director of many nonprofit business and community organizations, including the Society of International Business Fellows and the Young Presidents Organization. He chaired the Board of the Atlanta International School and the Society of International Business Fellows, and has served on five foundation and endowment investment committees. Larry also served as a U.S. delegate to the United Nations, and as a White House Fellow. He is a combat-decorated Marine Corps veteran, having commanded a rifle platoon in Southeast Asia. Larry received a Bachelor of Arts degree from Harvard College, a Masters of Science in systems planning from Florida State University, and completed his postgraduate education at the London School of Economics. Born in Louisville, he has lived in Atlanta since the mid-1960s. He has a wife, two daughters and a stepson.

O.G. Greene

Operating Partner

O.G. Greene serves on the boards of Atlanta-based interactive marketing and eCommerce agency Definition 6; Texas-based Computex Technology Solutions, a provider of IT solutions and managed services focused on hybrid IT environments; and Atlanta-based Brown Integrated Logistics, a transportation and logistics services provider. He also served on the board of Atlanta-based Technical Innovation, an audio-visual systems intergrator, prior to its sale and Atlanta-based Brightwell payments, a payments solution provider. In his career, O.G. has gained more than 30 years of leadership and operating experience in the financial services, banking and telecommunications industries. O.G. spent 25 years with Burroughs Corporation (now Unisys), where he rose from sales representative to president of the $5.5 billion U.S. operations. He also served as COO of First Financial Management, a $2.7 billion payment systems provider to the credit card, health care and checking industries, and CEO of National Data Corporation, a $320 million payment system provider to the credit card and healthcare industries. Most recently, O.G. led Skylight Financial as chairman and CEO.

As an entrepreneur, O.G. was co-founder and CEO of GridNet International, a telecommunications network provider (which he grew from a start-up to $40 million in revenues) and co-founder and CEO of Speer Communications (now DSM Networks), an information and media services provider to the broadcast and network industries. O.G. grew Speer Communications to over $65 million in revenue and sold the company to Qwest Communications, generating a substantial return for Speer’s investors. O.G. has served on numerous corporate and non-profit boards, including PreSolutions, Digital Fusion, Mellon Ventures portfolio company Princeton eCom, and the Research Board of Auburn University. O.G. earned Bachelor of Science degrees in chemistry and economics from Auburn University and graduated from the continuing education program at the University of Southern California.

Mark Downs

Partner, Co-Founder

Mark Downs is a partner and co-founder of Navigation Capital Partners. Mark serves on the board of directors of the following two companies: Atlanta-based Brightwell Payments, a payments solution provider and Atlanta-based interactive marketing and eCommerce agency Definition 6. Mark was a former director of A. H. Harris, a distributor of specialty construction products, Chattanooga, Tenn.-based vending and food service provider, Five Star Food Service ;and Quantapoint, a provider of 3D digital facilities to improve asset lifecycle decision making, prior to their sale.

Mark spent seven years as a senior vice president of Mellon Ventures, a $1.4 billion private equity firm affiliated with Mellon Financial Corporation, where he focused on industrial growth and buyout investments. Prior to Mellon Ventures, Mark managed Mellon’s Leveraged Finance Group and served in various assignments for Mellon’s Corporate Banking and Middle Market Departments in Chicago and Philadelphia, respectively. Mark earned a Bachelor of Arts from the University of Pittsburgh and an M.B.A from Northwestern University’s J.L. Kellogg Graduate School of Management. Mark is a member of the Society of International Business Fellows and is the former President of the Pittsburgh Venture Capital Association. Raised in York, Pa., he resides in Atlanta with his wife, daughter and son.