Ms. Lisa E. Rosenthal, Chief Executive Officer
Ms. Lisa Rosenthal is the Chief Executive Officer and co-founder of Mayvin, a dynamic women-owned small business. In less than 4 years, her team doubled the firm’s revenues annually making the Inc 5000 list of fastest growing firms 3 years in a row.
She is a seasoned leader and business developer with significant government and commercial experience managing a broad spectrum of tasks, functions, processes, and systems from concept to implementation. Ms. Rosenthal is recognized for strong leadership skills, facilitating organizational change, well as developing strategies for significant business decisions. She is a proven leader that achieves high levels of productivity and efficiency in very diverse and fluid environments.
Lisa proudly served on the American University (AU) Alumni Board of Directors and the American Health Education Center Network Board of Directors. She further supports the Armed Forces Communications & Electronics Association Small Business and Education Subcommittee, the National Board of Directors for Women in Defense HORIZONS Scholarship, STEM, and Academia Director, the AU Entrepreneurship Council, and sits on the Quality Systems Management, Inc. Advisory Board. She also proudly serves as a judge for the Kogod Case Competition and the George Washington Business Plan Competition.
She has a Master’s of Business Administration, International Finance as well as Management of Global Information Technology from The American University. She also has a Bachelor’s of Arts in Political Science and a Bachelor’s of Arts in Environmental Policy from The American University.
Mr. Victor Pirowski, Chief Financial Officer
Mr. Victor Pirowski has been the Chief Financial Officer of Mayvin since the company's incorporation in 2008. Victor has a proven record of developing and implementing financial and operational controls for Mayvin and its clients. His skills are directly applicable to a wide range of administrative, technical, and analytical functions in the formulation, presentation, defense, and execution of Department of Defense program budgets. He has significant experience in planning, organizing, and executing annual and multi-year budgeting projects.
Victor's knowledge of Contract Administration, Regulatory Compliance, and Government Business Systems allows Mayvin to interact smoothly and efficiently with clients. Under his guidance, Mayvin has earned DCAA Accounting System acceptability and developed an infrastructure that is capable of servicing Mayvin's clients, and scalable to meet surge requirements. Victor holds a Bachelor's of Arts in Finance from James Madison University in Harrisonburg, VA, and earned a Masters of Business Administration from George Mason University in May 2015.
Mr. Derrick Williams, Vice President - Growth
As Vice President of Growth for Mayvin, Mr. Derrick Williams is responsible for driving strategic partnerships and transactions to accelerate Mayvin’s growth. He is focused on identifying and realizing opportunities to expand Mayvin’s presence across the Federal and Defense contracting space. He brings over a decade of industry experience managing all aspects of business development, including market engagement, capture management, proposal development, marketing, and acquisitions. Before joining Mayvin, he worked for both large and small companies, including an international firm doing business with governments worldwide, governmental and non-governmental international aid organizations, and commercial enterprises.
Prior to industry, Derrick spent 20 years in the United States Army and served in the Armored Cavalry and other units from platoon-level up to, and including, Headquarters Department of the Army and Joint staffs. In the Army, he supported Special Mission Units and served as a Strategist for higher level staffs. Derrick graduated with a Bachelor of Science Degree in Political Science from Weber State University and has a Master of Science Degree in Business from Central Michigan University. Additionally, he works with Challenge America, whose mission is to connect service members, veterans, and their families to the resources they need to live the lives they earned and deserve. Derrick lives in Vienna, VA with his wife, daughter, and dog. Derrick — "I almost bowled a perfect game once... but I ruined it in the second frame."
Mr. Edmund Pettengill, Vice President - Contracts
Ed Pettengill is Mayvin's Vice President of Contracting, and is responsible for post-award contract administration and management of select programs. He is charged with leading the strengthening and growth of the systems that support Mayvin's commitment to providing our clients with the most talented workforce available. He joined Mayvin in 2018 after retiring from a successful career as an Army Acquisition Officer with multiple DAWIA certifications and experience in information systems acquisition, procurements in support of special projects, business financial management, and rapid capabilities development. Ed deployed in support of Operation Iraqi Freedom, serving as an Administrative Contracting Officer on the Logistics Civil Augmentation Program; and in support of Operation Enduring Freedom, where he was selected to act as Senior Military Adviser to the Afghan Ministry of Defense Acquisition Agency. In addition to his technical prowess in defense contracting, he offers mad leadership skills developed through the demanding regimen of commanding infantry soldiers as a junior officer. Ed also holds his MA in Procurement and Acquisition Management from Webster University and continues to pursue an advanced degree in Business Management. Ever the silent professional, Ed lives by his credo "If I'm doing my job right, you don't even know I'm here...or do you?" Surprisingly, he is loved and cherished by his wife, Laura, and their two daughters, all who somehow manage to accept his presence in their otherwise stable lives.
Mrs. Deb Yeagle, Vice President - Capture and Proposal
As Vice President of Capture and Proposal for Mayvin, Mrs. Deb Yeagle is responsible for developing capture management plans, win strategies, and proposals and supporting corporate professional development to accelerate Mayvin’s growth. She is focused on executing Mayvin’s Growth Plan Strategy to expand Mayvin’s presence across the Federal and Defense contracting space. She brings over 35 years of Federal Government contracting experience. Before joining Mayvin, she worked for both large and small companies and served in a wide variety of business development and operational leadership roles to support clients in the Defense, Homeland Security, Intelligence, and Federal Civilian markets. Prior to industry, Deb served in DoD for over 25 years. She graduated with a Bachelor of Science Degree in Computer Science from James Madison University. Additionally, Deb is Project Management Professional (PMP) certified by the Project Management Institute (PMI) and is an accredited member of the Association of Proposal Management Professionals (APMP) with a Foundation Level Certification (AM.APMP). She volunteers with numerous organizations to support transitioning military and Veterans in starting successful businesses. Deb lives in Tampa, FL with her husband, Jeff. In her spare time, Deb enjoys reading, watching sports, solving Sudoku puzzles, and reminding everyone up north how warm and sunny it is in Florida.