D&G Support Services has successfully supported DoD, DHS, and other Federal Clients since 2007. Our highly technical and motivated employees constantly deliver best-in-class solutions, with DHS Secretary and Secretary of the Army Awards for outstanding performance in Program Management, Engineering, IT, Data Analytics and Integrated Logistics. Both the Washington Business Journal and Inc.Com recognized D&G as “Best Places to Work” in 2021 and 2022, and one of the area’s fastest-growing companies.

Our Mission

To deliver best-in-class support and solutions to our Nation’s Warfighters and First Responders.


Leah Sanders


Leah Hermiller is D&G’s CEO responsible for the overall success and operations of the company, to include establishing the goals and objectives for future growth. She is a proven leader, licensed attorney, veteran and analytical thinker with superior communication and negotiation skills.

Leah’s success includes key positions in business, program management, legal, and military organizations. Her numerous awards for accomplishments in support of professional and community organizations include North Carolina Bar Association’s Outstanding Young Lawyer of the Year in 2018 and 2019 Next GovCon Leader Award.

J.D. – Wake Forest University
B.A. – Political Science, Virginia Polytechnic Institute and United States Military Academy

Scott Washburn

Chief Operating Officer

Scott Washburn is a retired U.S. Coast Guard Commander with over 25 years of leadership in program management, contracting, logistics, and systems engineering. He has held key positions in the USCG including CO/XO tours at the Response Boat Medium PRO and as a Program Manager for multiple USCG, CBP and TSA CWMD programs. He has also served as senior advisor to the DHS Office of Systems Engineering (OSE) as DHS S&T R&D and DHS CWMD Test Manager.

M.S. Ocean Engineering – University of New Hampshire
Masters Certificate in Project Management -George Washington University / Project Management Professional (PMO)
B.S. – Civil Engineering, U.S. Coast Guard Academy
DHS Acquisition Program Manager, Level 3

Mark Jones

Chief Financial Officer

Colonel (R) Mark W. Jones is the founder and driving force behind D&G’s success. He is an Acquisition Subject Matter Expert with 30+ years in the Department of Defense (DoD) and Department of Homeland Security (DHS) Programs. His highly diversified career includes key leadership positions within the Army, DoD, DISA, DHS, and Industry across Command, Control, Communications, Computers, Intelligence, Surveillance, & Reconnaissance (C4ISR), Information Technology (IT), and CBRNE programs. Responsible for providing financial and business support and providing business strategy and business development support across all of D&G’s major markets and centers of excellence.

DAWIA Level III Certified – Program Management, Test & Evaluation, Communications-Computers; Defense Systems Program Management and Executive Program Management Courses.

M.S. – Industrial College Armed Forces
MBA – Florida Institute of Technology
B.S. – Mechanical Engineering, United States Military Academy

Rick Follett

Director, Integrated Logistics

Highly Experience Senior Program Manager and U.S. Air Force Chief Master Sergeant (CMSgt) with over 37 years of experience supporting major weapon systems and sustainment programs and operations for the U.S. Air Force, Defense Logistics Agency, and Combined Security Transition Command – Afghanistan (CSTC-A). Responsible for spearheading major innovations in OSD, DLA J3/J6 Small Business Innovative Research (SBIR) Programs leading to an exponential growth and industry’s development of next-generation technologies. Proven performance across multiple areas of expertise including program management, information technology, ordnance/munitions, distribution and supply chain management and fielding/sustainment.

MBA – Stratford University
B.S – Columbia Southern University

Noble Johnson

Director, Defense Programs

Noble Johnson brings more than 37 years of leadership, team-building, and program management experience to the D&G Team. He led the development, deployment and operational testing of a wide range of ground combat, ballistic missile defense, aviation, and command and control systems. As the former PM TRADE, he was responsible for the acquisition and fielding of all U.S. Army training and instrumentation systems worldwide. He is experienced in all aspects of business and program management and has held numerous executive leadership positions in DoD, DHS, and Industry.

DAWIA Level III Certified – Program Management and Test & Evaluation
Graduate, Defense Systems Management Course and Executive Program Management Course
MS – Engineering, Catholic University, Washington, DC
US Army War College, Acquisition Fellowship, University of Texas, Austin, TX
BS – Chemistry, Eastern Kentucky University, Richmond, KY


Our team is consistently recognized at the highest levels for our expertise and outstanding support, to include the following Secretariat Level Awards:

  • DHS Secretary – Acquisition Team of the Year
  • DHS Secretary – Program Manager of the Year
  • Defense Logistics Agency – Defense Manufacturing Technology Team
  • DHS CWMD – Program Team of the Year
  • DHS CWMD – Acquisition Team of the Year
  • Secretary of the Army – IT Program Team of the Year


D&G’s employee certifications are extensive across all of our Centers of Excellence. 100% of our employees have Advanced Degrees, PMP and/or possess DAWIA Level III in Program Management, Systems, Engineering, Test & Evaluation, Logistics, and Information Technology. D&G ‘s company-level certifications include the following:

icons of different certifications D&G has worked towards