About Us

Leadership Team

Janet Clement

Janet Clement – Chief Executive Officer

As CEO of Jefferson, Janet Clement epitomizes leadership with her dynamic approach, exemplifying over 30 years of expertise in spearheading growth, change, and innovation. Her tenure is marked by an unwavering commitment to customer-focused solutions. Under her stewardship, Jefferson has flourished, both in market reputation and internal strategy cohesion. Janet’s belief in the transformative power of a people-centric culture has been pivotal in creating an innovative workplace. Her hands-on leadership style fosters collaboration across executive and senior management teams, driving solutions that address government challenges with client-centricity and high-impact results.

Before her current role, Janet oversaw a small business’s growth from $20M to $50M as the Chief Operating Officer. Her strategic vision and execution led to the establishment of a Shared Services Business Unit and the significant win of the Department of Commerce HR Shared Services contract. Her previous positions include Senior Director at ASI Government and a nine-year tenure at Unisys Federal, where she developed a Human Capital Practice and managed strategic accounts across various federal agencies. Janet’s roots in the public sector include significant roles at the U.S. Mint and the Air Force Office of Scientific Research.

Her active involvement in industry organizations further strengthens her leadership. She is a member of the Executive Committee for Professional Services Council and for the Industry Advisory Council for ACT-IAC, as well as a member of the founding board of directors for the Coalition for Racial and Ethnic Equity in Development (CREED).

Marty Mackes

Martin Mackes – Chief Delivery Officer

Marty Mackes, the Chief Delivery Officer at Jefferson, stands as a testament to over three decades of distinguished service in delivering solutions to Federal Government clients. His expertise spans across Homeland Security, Defense, Intel, and Civilian agencies. Marty’s leadership has been instrumental in steering an exceptionally talented team, fostering a culture of extraordinary delivery while aligning with business growth and corporate strategies. He oversees Jefferson’s Mission Support Team, including Enterprise Program Management, HR, Talent Acquisition, Contracts, and IT.

Marty’s previous tenure as Chief Delivery Officer at Avantus Federal saw him transforming program management and delivery models, contributing to the company’s expansion to over 1,000 employees. His rich experience includes senior roles at Unisys, Booz Allen Hamilton, and Standard Technology Incorporated, where he led businesses servicing various federal and defense markets.

His academic background includes a B.S. in Electrical Engineering from Old Dominion University. Marty’s commitment to industry excellence is reflected in his chairmanship of the Homeland Defense Business Council (HSDBC).

Jeremy Arensdorf

Jeremy Arensdorf – Chief Growth Officer

Jeremy Arensdorf, serving as the Executive Vice President and Chief Growth Officer at Jefferson, is the driving force behind the company’s new business initiatives and proposal efforts. His tenure at Jefferson is marked by transformative growth, guiding the company into new service areas and agencies. With a portfolio of serving over 20 federal agencies, his expertise in federal acquisition, organizational development, and project management is unparalleled.

Jeremy’s credentials include a PMP certification and being a Fellow of ACT-IAC. His leadership has been acknowledged through his chairmanship of the Acquisition Management Shared Interest Group and his selection for APMP’s 40 Under 40 award. He holds an MBA from Georgetown University and a BA with high distinction from Hastings College.

Before joining Jefferson, Jeremy’s dynamic background includes being the Director of Forensics at Doniphan-Trumbull High School in Nebraska, where he established a premier speaking program.

Al Burman

Dr. Allan Burman – Jefferson Solutions President

Dr. Allan Burman, President of Jefferson Solutions, has been a transformative leader since establishing the government consulting practice in 1996. His leadership has seen Jefferson providing a spectrum of services, including analysis, program management, and acquisition assistance to over 60 government agencies.

Dr. Burman’s distinguished government career includes policy roles in the Office of the Secretary of Defense and the White House’s OMB. As the Administrator for Federal Procurement Policy, he was a pioneer in establishing performance-based contracting and emphasizing outcome-focused federal management practices.

His accolades include being a Fellow of the National Academy of Public Administration, past Chairman of the Procurement Round Table, a Board Advisor at NCMA, and a Senior Advisor to Government Executives at the Partnership for Public Service. His educational background is equally notable, with a PhD from George Washington University, a Master’s degree from Harvard, a Fulbright Scholarship at the University of Bordeaux, France, and a Bachelor’s degree from Wesleyan University.

MJ Sivulich

MJ Sivulich – Senior Vice President

MJ Sivulich, the Senior Vice President at Jefferson Business Consulting, provides government affairs, federal business development, and public sector marketing support to industry clients.  She delivers vital insights into market trends and growth strategies and guides businesses toward market dominance.  She has a long track record of helping nonprofits and small, mid, and large businesses meet and exceed their growth objectives through business development strategy, proposal support, capture support, and market research.

As Legislative Director at Teledyne Brown Engineering, MJ was key in securing federal support and business growth through strategic legislative initiatives, demonstrating her knowledge in navigating federal legislation.  Her expertise in federal affairs was honed during her tenure with two Blue Dog Democrats in Congress, focusing on federal appropriation.

MJ is active in the GovCon community and leads the ACT-IAC FIE VA Team and is a co-lead for the PSC VA Task Force and the PSC VA Vision Team.

MJ’s educational background, a Bachelor of Arts degree from the University of the South, provides a lasting foundation for her career. Her unique combination of legislative knowledge and business skills makes her an invaluable asset to Jefferson, where she continues to be a leading force in federal business consulting.