• The federal government’s top space officials are frequent guests of Executive Mosaic’s 4×24 Leadership Program
• They share exclusive insights into shifting agency priorities, have candid, off-the-record conversations and develop relationships with top GovCon executives
• Visit the 4×24 Leadership Program homepage to learn more about why 4×24 is the essential membership organization for GovCon executives of consequence

Top federal space officials regularly brief the executives of consequence that form Executive Mosaic’s 4×24 Leadership Program, the essential membership organization for success in GovCon. Our small, invitation-only and high-impact gatherings bring together the most influential leaders in government who shape acquisition, drive innovation and direct government business.

Top space executives from agencies including NASA, the Pentagon and the National Reconnaissance Office respect the 4×24 Leadership Program’s curated peer network. This exclusive organization, available only to executives at the senior vice president  or C-suite level, provides exclusive insights into service needs, candid conversations on a Chatham House, off-the-record basis and develops relationships with the most groundbreaking companies in GovCon.

The 4×24 Leadership Program attracts top level speakers from more than just the space sector. Our speakers run the gamut of federal technology disciplines, including artificial intelligence, cybersecurity, wireless communications, intelligence, federal civilian, acquisition, unmanned systems and more.

Examine the stages of the 4×24 Leadership Program journey and how the program boosts the success of GovCon businesses.

The Stages of the 4×24 Journey

Connection

4×24 Leadership Program members exchange career insights and business experiences in intimate, focused settings and monthly Potomac Officers Club summits. These interactions not only expand their professional networks, but also foster a strong sense of community and help spark partnership opportunities.

Knowledge

Engaging with senior federal officials across government at both Potomac Officers Club summits and 4×24 events helps 4×24 members anticipate emerging competitions, requirements and pain points. Members learn from peers on industry trends.

Visibility

4×24 members enhance their visibility through consistent, guaranteed coverage across Executive Mosaic’s online publications—GovCon Wire, ExecutiveBiz, ExecutiveGov and GovConExec International. Programs like the Executive Spotlight interview series enable members to clearly communicate their key messages and strengthen their brand among leading GovCon professionals.

Alignment

This is when connection, knowledge and visibility come together for 4×24 members, empowering members for success in the final stage: Opportunity.

Opportunity

This is when it all comes together for 4×24 Leadership Program members. They become better equipped with exclusive knowledge and details of federal opportunities, relationships with top government officials and fellow influential executives, positioning them to win more, and larger, contracts.

Why Should GovCon Executives Join 4×24?

Executives should join the 4×24 Leadership Program to anticipate service requirements before they’re publicly announced, build meaningful relationships that lead to new business opportunities and deepen their commitment to government service. The 4×24 Leadership Program has many different pathways for executives from a variety of disciplines looking to win more, and larger, contracts. Learn more about the program and inquire about membership today!

Who Are Space Officials Who Have Addressed 4×24?

Dive into the backgrounds of five esteemed federal space officials who have addressed the 4×24 Leadership Program. Their titles are current as of publication.

Marvin Horne

Acting Senior Procurement Executive, NASA

Marvin Horne is NASA’s acting senior procurement executive, deputy chief acquisition officer and assistant administrator for the Office of Procurement. In these roles, Horne advises NASA senior leaders and provides oversight of procurement, policy and initiatives. He addressed a 4×24 gathering in January. He was NASA deputy assistant administrator for procurement when he joined a 4×24 event in February 2023.

Since joining NASA in 2008, he has served in a variety of critical executive leadership positions. As the director of the Information Technology Procurement Office, Horne provided leadership and execution for more than 280 contracts with yearly obligations of more than $730 million. He also managed a workforce of more than 150 contract employees and civil servants.

Mark DeVido

Director of Contracts, National Reconnaissance Office

Mark DeVido has served as the NRO’s director of contracts since 2019. He has vast acquisition experience in the intelligence community, also including the CIA, National Geospatial-Intelligence Agency and the Department of War.

As CIA chief for acquisition strategy in the Office of the Procurement Executive, DeVido led the implementation and development of the Agency Corporate Acquisition Strategy. He also directed multiple workforce, strategy and efficiency initiatives throughout the agency.

DeVido, as CIA chief of the headquarters contracts group and the talent and enterprise acquisitions group, oversaw six contracting teams across the agency and the IC.

He addressed 4×24 events in January 2026 and in February 2020.

Shannon Pallone

Program Executive Officer for Battle Management, Command, Control, Communications and Space Intelligence, U.S. Space Force 

Shannon Pallone, as Space Force PEO for BMC3I, guides an $8.5 billion portfolio of programs covering a wide range of missions including data services, space domain awareness, satellite control and space intelligence. One key initiative she’s led in this position is Advanced Tracking and Launch Analysis System, or ATLAS, a software-focused program for processing, managing and sharing space monitoring data.

Under Pallone’s leadership, the Space Force in September announced operational acceptance of ATLAS, according to Breaking Defense. This is considered a first step toward improving the service’s ability to identify, track and characterize objects in space in a sophisticated-enough way to allow persistent “eyes” on enemy satellites.

Pallone was previously the deputy PEO for BMC3 at Space Systems Command. She addressed a 4×24 event in October 2024.

Maj. Gen. Brian Sidari

Deputy Chief of Space Operations for Intelligence, U.S. Space Command

Maj. Gen. Brian Sidari is the senior intelligence officer to the chief of space operations. He spoke at a 4×24 gathering in December.

Sidari reports to Troy Meink, Air Force secretary and a Wash100 Award winner, and Gen. Chance Saltzman, Space Force chief of space operations and fellow Wash100 awardee, for intelligence policy, oversight and guidance of USSF intelligence, surveillance and reconnaissance capabilities. He previously served as USSF director of ISR and later as U.S. Space Command’s intelligence director.

Lt. Gen. Sean Gainey

Commanding General of Space and Missile Defense Command, U.S. Army

Lt. Gen. Sean Gainey assumed command of Army Space and Missile Defense Command, or ASMDC, in January 2024. He has emphasized the integration of space, missile defense and high altitude capabilities to enable multi-domain operations and address the complex challenges of future combat.

Gainey has led ASMDC and Army Special Operations Command efforts to validate high altitude platforms. He’s also working to develop and refine ASMDC’s Tactical Integrated Ground Suite and small form factor capabilities.

Gainey previously served in a dual-hatted role as Army director of the counter-unmanned aircraft systems office and director of fires from September 2020 to January 2024. He addressed 4×24 members in June 2024 and in October 2020.