About Us

Since 1995, developing has been the cornerstone of our business.  We are the only local, full service industrial real estate development company in El Paso, Texas.  We provide comprehensive real estate services that manage the process from beginning -to- end: identifying a site, navigating complex approval processes, creating problem solving solutions, working with the design and construction team and engaging our management team to operate and create the most valuable industrial buildings in the market. 


Brent D. Harris is President and the Chief Executive Officer of Industrial Realty Group Incorporated and is the Managing partner of the Plexxar Companies since 1995.   Prior to forming IRG and Plexxar, Brent was one of the original co-founders of Prologis, Inc. in El Paso, Texas in 1991.

Since its inception, through Brent’s leadership, IRG and Plexxar has developed over 3,000,000 square feet of institutional quality commercial and industrial facilities in Northwest El Paso, Texas. 

He is a graduate of the University of Texas at Austin with B.B.A. in Accounting, formerly a CPA and resides with his family in El Paso, Texas.

Stephen L. Feinberg is a co-founder and partner of Plexxar and its affiliated companies and serves as our senior investment advisor. Mr. Feinberg has been involved in various diversified investment companies dealing with real estate, agriculture and private equity.

Mr. Feinberg currently serves as Chairman of Dorsar Investment Company and is a director of Security Capital Preferred Growth. He was one of the original co-founders and a board member of ProLogis Trust from 1992-2011 and was Chairman of the Board from 2008-2011. He has been involved in numerous public service organizations such as MD Anderson Cancer Center, St. John’s College, UT Austin College of Education, the American Jewish Committee Transatlantic Institute and the Feinberg Foundation

Henry Yoshawirja is a co-founder and partner of Plexxar and its affiliated companies. He graduated from the University of Illinois at Urbana-Champaign with a Bachelors of Science in Computer Engineering and a Masters of Business Administration.

Prior to Plexxar, Henry started and co-founded other companies including Axxion Group Corporation and Quix Holding. He remains involved in local non-profit civic organizations and is a member of YPO Gold.

Margie Mais-Gill runs our property management group and has been instrumental in establishing best-in-class service to our tenants.  Her dedication and relationship based service allows companies to focus on their business while we handle maintaining the real estate.

John Christie is a part of the property management group and is the facilities manager for all of our properties. He maintains relationships with our current tenants by attending to their everyday needs. John has held positions in manufacturing, facility and property management throughout his years in the workforce. With his work, our tenants know that someone is there to help them when an issue with the building arises.

Jacob Harris is a member of the Development Services team.  Jacob is involved in all aspects of the development process, financial analysis and assists with working along side prospective tenants, architects, contractors and other related professionals.    

Jacob is a recent graduate of West Texas A&M and resides in El Paso, Texas.

Carlos Ortega is involved in financial analysis and accounting of all projects and brings more than 40 years of financial and operating executive experience from start-ups to mature international companies.  He is currently the CFO for Medical Center of the Americas Foundation. Mr. Ortega is a Certified Public Accountant and is a graduate of Notre Dame University.