About Us

DSoft Technology, a Colorado Springs, Colorado-based Service-Disabled, Veteran-Owned Small Business (SDVOSB)is a leading provider of technology, engineering and analysis consulting services and solutions for a broad range of clients across the country. DSoft Technology has proven success delivering strategic value and operational efficiencies to our clients, specializing in .NET, Umbraco, and open-source technologies. Since our founding in 1998, DSoft has been supporting DoD clients in the military space domain, and have expanded our portfolio to become trusted experts in DoD, Civil and Commercial sectors, and Cloud Computing. 

In everything we do, we use incremental, iterative processes in close collaboration with our clients. This approach improves investment manageability, lowers risk of project failure, shortens the time to realize value, and helps our clients better adapt to their changing needs. Our formula for success is a thoughtful combination of people, clients, and culture. We find that makes all the difference. 



We develop and operate software tools to support modeling and simulation for analysts, while also using cloud-based technologies to create the most advanced websites in the world.


We perform operational testing, human factors engineering, usability design, and evaluation with systems engineering methodologies using best practices in project management.


We employ critical thinking with computational techniques for data analysis with defendable insights, new solutions, and consulting expertise - including Military Utility Analysis for the warfighter.

Quality Approach

While relatively small in size compared to other defense technology companies, we are big in capability and delivery. We are not an organization of management layers, but rather a flat organization that encourages interaction and opinions. We foster a culture that is clearly evidenced by our staff's exceptional enthusiasm and dedication to client satisfaction. Our approach is very simple: through hard work and technical excellence, we are committed to providing outstanding services and solutions to exceed the needs of our clients.

Team Partnership Success

Our client's success is our success. Our team is focused on partnering with our clients to accomplish this end goal. We will go above and beyond "the call" to ensure that our clients succeed through the solutions we build and services we provide. We believe in win-win. In addition, our commitment to our teammates, clients, community, and country is that all our assignments will be performed in the U.S. simply because it's the right thing to do. We also have a strong military veteran hiring preference.

Business Sectors

DSoft Technology is focused towards providing quality IT, engineering and program support services to federal, state and local governments, commercial entities, ministries, and other non-profit organizations. We also offer clients many years of experience in the practice of human systems integration / human factors engineering that involves designing, testing, and evaluating human-system interfaces. Please see our Portfolio for additional information on our work.

Business and Personnel Conduct Standards

Since our founding in 1998, DSoft Technology has run its business in conformance with the highest standards of ethical and professional conduct. Doing business with the U.S. Government requires us not only to adhere to traditional precepts of ethical behavior, but also to comply with many statutes and regulations defining specific standards of conduct. Every teammate must understand and abide by our Code of Ethics, standards of conduct, and policies and procedures that govern our operations and our dealings with clients.


President and CEO

David A. Hollenbach

Mr. Hollenbach is President and CEO of DSoft Technology. David graduated from the US Air Force Academy in 1987 with a Bachelor of Science degree in Engineering Mechanics and later received his Master of Science degree in Systems Engineering from the Air Force Institute of Technology.  He has worked on a variety of systems engineering and IT projects throughout his career. His domain experience ranges from work on military, civil, and commercial space-related projects as an engineer/analyst and military operations planner and operator, to ecommerce projects as a systems engineer and project manager. He is a service-disabled veteran.

Vice President of DoD Sector

Sean D. McClung

Mr. McClung is Vice President, Defense Sector Operations at DSoft Technology. Sean graduated from Warrington College at the University of Florida in 1982 with a Bachelor of Science degree and later received his Master’s degree in International Relations / Strategic Studies from International University, London, England.  Sean spent his 28-year Air Force career in the field of space operations, with his last military assignment at Maxwell AFB, Alabama as Director of the National Space Studies Center in 2010. Sean brings years of experience in commercial, civil and joint military systems development, planning, and operations and has served in senior management of several companies in the space industry.  He is a service-disabled veteran.

Vice President of Business Operations and Technology

Michael Chapman

Mr. Chapman is the Director of Business Operations at DSoft Technology, Engineering, and Analysis.  He graduated from Mount Olive College in 1990 with a Bachelor of Arts degree in business administration.  He completed is graduate degree in Computer Systems at the University of Montana in 1993.  Michael has military operations experience as a nuclear missile crew launch officer for Minuteman II and Minuteman III weapon systems at Malmstrom Air Force Base.  Additionally, he served as the database design team chief (J654) at USSTRATCOM for all nuclear applications.  Follow on assignments included a tour as a lead modeling engineer for Extended Air Defense Modeling and Simulation (EADSIM) activities conducting independent analysis for the Office of the Secretary of Defense (OSD).  Michael also served as Deputy Director, Information Management and Analysis Group, Program Analysis and Evaluation at OSD.    Since retirement Michael has worked commercial technology projects holding various leadership roles including his latest as the SVP of cloud platforms including Microsoft Azure, Amazon Web Services, and Google Cloud Platform.

Senior Program Manager, Civil Government, Commercial & Non-Profit Sector

Pat Matthews

Mr. Matthews is the Senior Program Manager for DSoft Technology support to civil, commercial, and non-profit organizations. Prior to joining DSoft Technology in 2018, he managed applications development for several Colorado state agencies as a senior leader within the Governor’s Office of Information Technology where he assessed service gaps, determined root causes, and developed a strategic roadmap to efficiently align IT resources along business functions for improved service delivery at eight departments. After graduating from the United States Military Academy at West Point, he served for 20 years as an Army officer in tactical infantry and aviation units in Iraq, Korea, and the homeland. His multi-service experience includes four Office of the Secretary of Defense joint test and evaluation projects. Mr. Matthews is a service-disabled Veteran and is professionally certified in project management, systems engineering, knowledge management, ITIL, and is a Lean Six Sigma Green Belt.