Angela Barron
Angela Barron leads our Human Resources department and initiatives. Angela is an innovative and strategic human resources expert who enjoys translating business vision into HR initiatives that improve performance, profitability, growth and employee engagement. Angela earned a Bachelor of Science in Business Administration from California State University of Fresno and a Master of Arts in Organizational Management from the University of Phoenix. She is a Professional in Human Resources (PHR), Society of Human Resources Management Certified Professional (SHRM-CP) and a Certified Mediator.
Clark Prothero, PE, CMQ/OE
Clark has over 26 years experience in Construction Construction Quality Managment, Construction Management & Engineering positions. He currently manages our Infrastructure business development for large projects pursued outside of Texas. He is also responsible for overseeing these projects as they are secured, while managing the Utah Division. Overall, Clark is responsible for 70 plus employees, 3 material testing labs, and development of our proprietary documentation software ELVIS.
Frank Holzmann, PE
Gary W. Raba, D.Eng, PE
Dr. Gary Raba is a recognized leader among infrastructure engineering consultants in the U.S. After earning three degrees in Civil Engineering from Texas A&M University, he embarked on a 39-year career that has involved significant projects for many governmental agencies and Departments of Transportation around the country. He developed quality assurance software that made Raba Kistner the in-demand partner on some of the largest, record setting projects across the U.S. Gary served as CEO/President of Raba Kistner, Inc. from 2013 to 2020. He now provides strategic leadership and pursues growth opportunities for the company.
Gabriel Ornelas, Jr., PE
Gabriel possesses the advanced technical, leadership, communication, and business skills to interact with clients and lead a consulting team to success. His principal practice areas relative to consulting and design experience include construction materials testing and engineering, forensic engineering, and geotechnical engineering. Gabriel has more than 20 years work experience involving management and execution of construction quality control testing and inspection services on major construction projects in Texas.
Richard S. McNary
Dick McNary is President and COO of Raba Kistner Project Control. Dick has been with the firm since 1985, working his way up through all aspects of managing the business, from his start as Project Manager. Most recently, Dick has guided his project management group through expansions into multiple markets throughout Texas. He is involved in Chamber of Commerce initiatives and is a graduate of their leadership development program. He also is a past member of the Alamo RMA’s Community Advisory Group for the Loop 1604 and Highway 281 Improvements.
Mike Frisbie, PE
Mike leads business growth and strategic development for the firm. He has demonstrated executive leadership performance in planning, directing and overseeing large-scale engineering, infrastructure, water, wastewater, streets, storm water, and traffic management operations, with accountability for up to 1,075 employees while managing large Annual Operating Budgets and Capital Improvement Programs.
Renan Pierre-Louis, MBA
Renan Pierre-Louis serves as Vice President and Chief Financial Officer of Raba Kistner, a leading engineering consulting and program management firm with over 850 employees. He is a strategically focused and commercially astute executive with more than 25 years of financial leadership experience in the engineering and construction industries. Renan has been with the company for over five years and has played a key role in strengthening its financial and operational foundation.
As CFO since 2020, he has been a member of the executive committee and has responsibility for all finance and accounting operations, including mergers and acquisitions. During his tenure, he has helped lead multiple acquisitions and supported the successful integration of those businesses into the organization.
Renan’s background includes extensive experience in financial strategy, performance management, and organizational leadership. He has guided finance functions through growth phases, enhanced reporting frameworks to support executive decision-making, and partnered closely with operational leaders to ensure financial discipline aligns with business objectives. His leadership approach emphasizes accountability, cross-functional alignment, and the development of strong, result-oriented teams.
He earned a bachelor’s degree in management and accounting from the University of Massachusetts Boston and an MBA with a concentration in Finance from Northeastern University. Renan is fluent in both written and spoken French.
Chris L. Schultz, PE, PMP
Chris serves as the President of Raba Kistner, Inc. With more than 30 years of experience, exclusively with Raba Kistner, Chris provides strategic leadership and is responsible for the overall operations and resources of the company. In his previous roles he was responsible for scope development, contracting, financial management, and implementation of Raba Kistner’s geotechnical engineering projects across many industries for the entire company. He also served as the firm’s first Marketplace Leader, responsible the business in the Houston area. After earning a B.S. from the University of Colorado, Chris received an M.S. in Civil Engineering from the University of Texas at San Antonio. He has served in state board positions for TSPE and TCEL.