Our Leadership Team

QED Enterprises draws strength and direction from its strong, experienced management team.

Mark Witte, Founder, President & CEO

Mark is responsible for all financial and contracting aspects of the company.  He directs the development and execution of the overall business strategy for the company, as well as personally overseeing all QED construction projects.

Prior to launching QED, Mark served in the US Army as a Green Beret supporting peacetime missions in Central and South America, and various missions in Afghanistan.  In his early years, Mark worked on construction projects in multiple capacities, from laborer to apprentice carpenter. This experience has paid large dividends for QED’s Construction Division as discussed in QED Client Highlights. 

Mark holds a bachelor’s degree in accounting and master’s degree in computer resource and information management. These degrees, coupled with his experience in the Chief Information Office for the US Army’s 3rd Special Forces Group helped him to deepen his understanding of everything from information technology (IT) systems management to cyber security. Mark’s professional experience and academic background propelled him to successfully complete many IT and communication integration jobs for Federal Law Enforcement and the Intelligence Community.

For fun, Mark enjoys relaxing with his family, going to church, and teaching people how to fly as a licensed Flight Instructor.

Kristin Witte, Chief Operating Officer & Facility Security Officer

Kristin spearheads QED’s executive team to develop and execute growth strategies by identifying and developing new service markets, enhancing current and strategic partnerships, and establishing new teaming initiatives. She created and currently manages QED’s strategic growth and internal processes to ensure scalability and efficiency.

With over 20 years of experience providing hands-on support to multiple functional areas, Kristin has supported QED’s growth from its inception. She is skilled in Professional Human Resources, business development, program and performance management, fiscal management, and leadership development. She is a proven operations professional with a Master of Science degree in labor and industrial relations.

When Kristin is not working, she enjoys traveling with her family and going on hikes. When the stars align, Kristin loves live theatre, especially when she gets to catch a show in NYC.

Rita Rosse, Chief Financial Officer

Rita is responsible for managing the accounting department and oversees all financial reporting and analysis at QED.  She has more than 25 years experience in accounting and finance.

Prior to joining QED, Rita worked as the Controller for three Baltimore companies before returning to consulting. As a financial consultant, she helped many startups set up and maintain their accounting practices. She advised on business acquisitions and assisted in the sale of a business unit. One of her valued clients over those  years as a consultant was QED Enterprises, Inc.  She was excited to join us as full-time CFO in 2019.

Married to her high school sweetheart, Rita has three sons and in her spare time she enjoys traveling with her family. She also loves to write and wrote her first novel a few years ago. She is currently working on a children’s book.

Ralph Gronlund, Vice President of Federal Solutions

Ralph identifies and executes strategic growth opportunities and authorizes the custom-solutions QED develops in support of new and existing lines of business. He is instrumental to QED’s programmatic execution by identifying and resolving barriers that prevent optimal delivery of services.  His experience positively impacts our clients’ missions, as well as QED’s corporate growth.

Ralph also spearheads client engagement in support of QED’s Program Management Team.  He supports the overall account management process by securing and leading resources and directing activities to support client business needs.

With over 30 years of experience deploying and delivering client-centric solutions across technology, construction, facilities management, and logistics in classified environments, Ralph helps QED build client relationships based on trust, high quality deliverables and thought leadership.

For fun Ralph is an amateur photographer, videographer, editor and producer. He enjoys mountain biking, camping, and household construction projects.

Erin Barber, Vice President of Strategic Services

Erin strategizes, designs, and implements new tools, technologies, and processes to help QED operate more efficiently. She also spearheads QED’s marketing and branding initiatives; and as a member of the executive team, Erin participates in strategic planning to develop the evolution of QED’s corporate goals, direction and future growth.

For more than 20 years, Erin has worked in multiple capacities to help small businesses strategically grow and scale their processes.  She brings this experience to QED to scale internal processes and formalize client-facing processes and procedures. When needed, she also supports business development, proposals, pricing, and staffing.

Erin spends her free time with her husband and two kids. She loves live theater (I’ll go with you, Kristin!) reading, traveling, and making jewelry.



QED Enterprises is excited to partner with ALEX-Alternative Experts, LLC  in the SBA certified Mentor-Protegee program.  Through this program, QED and ALEX have an SBA certified Mentor-Protegee Joint Venture to pursue strategic business opportunities.

ALEX is a trusted provider of technology, engineering, modernization and professional services for government defense and commercial organizations.  www.alexinc.com

Our Mentor-Protegee partnership pursues facility modernization and optimization, security solutions, logistics, human intelligence and data analytics work in support of the federal government.


Customers and Partners

QED partners with our customers to assist them in accomplishing their agency’s mission by providing superior service solutions and top-notch talent.

Department of Justice
Army Research Lab
Naval Research Lab
Naval CIS
Drug Enforcement Administration
Department of Energy
Department of Veteran Affairs
Federal Bureau of Investigation
National Science Foundation
General Services Administration
Department of the Army
  Forte Meade
  Fort Myer
Fort Detrick

Welcome to QED Enterprises, Inc.

About Us


QED was founded by two Special Forces operators, a former Army Green Beret and Navy SEAL, who brought along their cultures of high performance and success. QED Enterprises is experienced in program management, construction (including building renovations and design-build projects), logistics, and security escort services.

Our Core Values



We take responsibility for ensuring  customer satisfaction on the delivery of all of our projects.


We demonstrate leadership as a company and as individuals, and always rise to the occasion.


Honesty and integrity form the foundation of all our interactions, both internally and with clients.


We regard our contractors as team members and hold them to the same standard of excellence.

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For Your Professional Services and/or Construction Needs!