President and CEO
Bill Graham is President and Chief Executive Officer at The SI Organization, Inc. In this role, he is responsible for leading a team of over 2,000 geographically-dispersed employees that provides innovative, cost-effective solutions to our customers while maintaining the highest level of ethics and integrity.
Chief Operating Officer and Executive Vice President, Corporate Development
Deborah (Deb) Oliver is the Executive Vice President of Corporate Development and Chief Operating Officer at The SI Organization, Inc. In this role, she is responsible for driving day-to-day operational milestones to meet the company’s strategic and growth objectives. Deb uses her enterprise operations, engineering, and management backgrounds to shape both the short- and long-term impacts that corporate strategy, mergers and acquisitions, industry and government relations, branding, and communications initiatives may have on the success of the business.
.jpg)
Vice President, National Security Space
Tom Sheridan is the Vice President of National Security Space at The SI Organization, Inc. In this role, he shapes the overarching strategy and deployment of the SI’s systems engineering and integration services to our customers in the Intelligence Community, the military and NASA in support of national security objectives.
Vice President, GEOINT Integration
Kent Matlick is the Vice President of Geospatial Intelligence (GEOINT) Integration at The SI Organization, Inc. In this role, he drives the deployment of the SI’s GEOINT integration and analytical services to our customers in support of U.S. national defense.
Vice President, Intelligence Systems Group
Brett Dody is the Vice President of the Intelligence Systems Group at The SI Organization, Inc. In this role, he oversees the delivery of the SI’s cost-effective analysis and systems engineering and integration expertise to our customers across the Intelligence Community that directly impacts their mission success.
.jpg)
Jeff Castelli is the Vice President of the PhaseOne Communications line of business at The SI Organization, Inc. In this role, he manages PhaseOne’s portfolio of private and public sector services that enhance customer communication strategies and optimize their communications to clients, partners, shareholders and workforces.
Vice President, Mission Analysis
Mike Kirkland is the Vice President of Mission Analysis at The SI Organization, Inc. In this role, he is responsible for the technical integrity and success of our engineering solutions; driving complex technical issues to closure; and meeting the schedule, cost and mission needs of our customers.
Vice President, Marketing and Advanced Programs
Doug Dreyer is the Vice President of Marketing and Advanced Programs at The SI Organization, Inc. In this role, he is responsible for growing and sustaining the SI’s business by identifying new customers and partners, designing future offerings, and providing innovative and customized solutions to our customers.
Vice President, Chief Technology Officer
Barry Barlow is the Vice President and Chief Technology Officer at The SI Organization, Inc. In this role, he ensures the SI is positioned for short- and long-term success by assessing the technology needs of our customers, partners and suppliers, as well as developing a corporate technology roadmap to meet those needs.
 medium.jpg)
Vice President, Homeland Security
Jim Carlson leads a line of business that delivers the SI’s unique brand of systems engineering and integration solutions to homeland security customers.
.jpg)
Vice President and Chief Financial Officer
Jim Reagan is Vice President and Chief Financial Officer at The SI Organization, Inc. In this role, he leads the development and implementation of financial strategies across the enterprise to ensure the SI and our customers are well positioned to meet mission goals.
.jpg)
Vice President, Human Capital Solutions
Kelly Jones is the Vice President of Human Capital Solutions at The SI Organization, Inc. In this role, he leads a multi-disciplined team that ensures the SI is positioned for long-term success by focusing on the company’s most important asset – its people.
Vice President, Enterprise Operations
Marshall Keith is Vice President of Enterprise Operations at The SI Organization, Inc. In this role, he ensures the SI executes its business operations by providing our people with the support they need to perform their jobs.
Vice President, General Counsel and Secretary
Steve Costalas is Vice President, General Counsel and Secretary of The SI Organization, Inc. In this role, he is responsible for providing business and legal counsel for the SI’s corporate transactions.
Chief Contracting Officer
Rebecca (Becky) White is the Chief Contracting Officer at The SI Organization, Inc. In this role, she identifies and evaluates potential business risks to the SI and ensures low risk, profitable contracts in support of the SI’s long-term business strategy.