When Elio Castañuela launched Diversified Technical Services, Inc., he envisioned a company with a fierce commitment to customer success and satisfaction. From those beginnings, DTSI developed a culture intent on providing the most innovative and advanced solutions to the increasingly demanding technological challenges facing governmental agencies. Although initially small in size, the organization gathered a highly experienced and knowledgeable staff, leading numerous projects in the U.S. and around the world, building a reputation for meeting deliverables on time.
DTSI is a leader in the Software Development and IT services industry. With over four decades of experience providing quality and cost-effective technical support services and solutions to a diverse customer base, DTSI applies time-tested skills, knowledge, and abilities in the management of its projects and contracts. DTSI also possesses a wide range of capabilities from software development, enterprise systems, cyber security, network infrastructure, and system modernization. As a CMMI® Level 3 appraised company and a perpetually growing organization, our Quality Control Processes guide not only the operations of its contracts but the management of the entire corporate body.
Leadership Team
Suzanne Castañuela
Chairman, DTSI
“We must take care of our people to the best of our ability, this will create a culture of job satisfaction that will consistently result in a high level of support and delivery to our customers.” -Suzanne Castañuela Suzanne’s background in management and leadership was cultivated during her 35 years in the Education field. When faced with the realization that she would be performing the role of the company’s Chairman, Suzanne started an intense mentorship program committing herself to our DTSI founder, Elio Castañuela, and to the company. Her mission of providing the highest level of support was instilled by our founder and today it results in her strong belief that DTSI’s most important resource is our people. As the Chairman of DTSI, Suzanne provides leadership and promotes effective professional relationships and an environment of open communication. Suzanne earned her Bachelor of Science Degree from the University of Texas at El Paso.
Suzanne Castañuela
Chairman, DTSI
Manuel Marrufo
Chief Executive Officer
Manny serves as Chief Executive Officer and Chief Financial Officer for the company. He also served as President for thirteen years. During his tenure with DTSI, Manny has seen DTSI evolve from a small striving organization to its present state of a strong, stable and growing enterprise.
His previous business experience includes banking and financial management consulting. He is a Certified Public Accountant and holds both Bachelor and Master degrees in Business Administration from the University of Texas at El Paso.
Manuel Marrufo
Chief Executive Officer
Greg Wicketts
President and Chief Operating Officer
Greg Wicketts is President and Chief Operating Officer. He began working for DTSI in 2005 as an application analyst and was assigned to the division office in 2007 as a project manager. Greg was promoted to Vice President of Operations in 2013 and then to his current position in 2016.
For over 30 years Greg has been fortunate to have worked with a tremendously dedicated team of IT professionals – people who are the subject matter experts for Air Force systems. He is also fortunate to have a terrific, supportive wife, Rebecca, and three wonderful children. Greg obtained his Bachelor’s and Master’s Degrees in Business Administration from the University of Texas at San Antonio in 1996 and 2005, respectively, and his Project Management Professional® certification in 2006.
Greg Wicketts
President and Chief Operating Officer
Dave Ramos
Vice President – Corporate Affairs
In his current role as Vice-President- Corporate Affairs, Dave manages all aspects of corporate affairs for the organization including company information management, administration, risk mitigation, recruiting and maximization of corporate infrastructure.
Since joining DTSI as a technical project manager, Dave has successfully served for twenty-two years in a variety of tactical and strategic roles encompassing corporate and operational support positions for the organization. Most recently, he served as Vice-President for Business Development. Aside from DTSI, Dave has worked in both technical and Human Resource Management roles for domestic and internationally based commercial firms including homebuilding, cartography and product manufacturing. His range of expertise has given him the opportunity to develop data centers in the US and Canada, assist in systems migrations as well as successfully drive organizational development for several companies.
Dave Ramos
Vice President – Corporate Affairs
Russell Williams
Director of Operations
During his 13 year tenure, Russ has served as On-Site Project Manager, Corporate Program Manager, and Contracts Administrator. His efforts have had a direct impact on the overall growth of DTSI. With more than 36 Years in IT, Russ leverages his diverse IT background and problem solving capabilities to tackle a variety of technical issues.
Prior to joining DTSI, Russ proudly served in the US Air Force for more than 23 years spending that entire time in the Information Technology field. He earned his Bachelor's degree in Information Management from the University of Maryland and is a Certified Project Management Professional.
Russell Williams
Director of Operations
Ronny Holmes
Director of Support Services
Ronny Holmes is Director of Support Services and also serves as Facility Security Officer for the company. Ronny is serving his second tenure with DTSI having rejoined in 2001 at their former headquarters in El Paso. He was responsible for managing the relocation of corporate headquarters to San Antonio in 2014.
Ronny began his career with the company as the corporate network administrator and now serves to manage DTSI’s corporate Information Systems and Facilities and is chiefly responsible for managing security and maintaining a secure environment for corporate employees and visitors. Ronny was honorably discharged from the US Army in 1977 where he subsequently began to design, install and support a variety of computer networks in the El Paso area. He now leverages his three decades of professional experience in a variety of technical roles and numerous industry certifications to serve DTSI corporate information and security requirements.
Ronny Holmes
Director of Support Services
Greg Olivares
Cyber Account Executive
Greg is responsible for providing strategic, tactical and operational aspects of the Cyber & Logistics portfolio for DTSI. With a drive to deliver, Greg leverages current technologies with the right mix of people to provide great solutions to various Air Force missions. Greg began his career at DTSI as the NETCENTS-2 Proposal Manager, delivering dozens of proposals and growing DTSI’s portfolio across Air Force technology programs.
Greg began his work career as an engineer in Research and Development, turning nuts and bolts on satellites, and launching experimental and operational satellite into orbit. After transitioning to the defense industrial base, he continued to tackle the hard challenges – from intelligence to command and control to the burgeoning cyber battlefield. Greg maintains his technology proficiency by providing low-cost computers to those in need and encouraging STEM careers for students everywhere. Greg looks forward to the day technology and art merge into a cohesive field where all can enjoy the magic and science of both.
Greg Olivares
Account Executive
Our Corporate Office
In 1980, DTSI was founded with the vision of combining the latest technologies with expertly skilled people to deliver the right solutions to our customers. Four decades later, our agile organization continues to deliver on that vision and as a result, our customers have benefited from the range of solutions and services that DTSI has delivered. We invite you to explore our site and obtain a brief snapshot of our organization and the successes we have enjoyed.
12508 Jones Maltsberger, Suite 101
San Antonio, TX 78247
(210) 341-1980
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