The Vanguard Executive Team is comprised of visionaries, entrepreneurs, cybersecurity experts and seasoned global executives with diverse backgrounds from the United States Military and industry leading Fortune 500 companies, each dedicated to protecting the nation’s critical infrastructure and committed to A World Secured!

Executive Team

Ronn H. Bailey

Founder, CEO and CTO

Ronn H. Bailey Founder, Chief Executive Officer and Chief Technology Officer of Vanguard Integrity Professionals, is a recognized expert in cybersecurity and information technology.  Bailey has been the CEO and CTO of Vanguard for more than 30 years. Ronn works closely with government agencies and Fortune 1000 companies worldwide, helping to identify and resolve the ever-changing threat scape related to cybersecurity, governance, risk and forensic analysis.


Bailey, a cybersecurity inventor and patent holder, was requested to help write the “cyberspace security policy” for the Bush administration.


Bailey is an extreme athlete having participated in the dangerous off-road race known as The Dakar. Extreme off-road racing has been instrumental in running and operating a highly successful company, much like racing leading a championship organization requires developing and executing on highly effective and efficient plans and highly skilled resource management.


Bailey is a cybersecurity visionary driven by his patriotism for the United States of America. He is a proud veteran having served in the United States Air Force with deployment in the Vietnam War during his military tenure.

Brian Marshall


Brian Marshall joined Vanguard in 2006 serving initially as the director of research and development. During this time Marshall was the primary architect and visionary behind Vanguard Configuration Manager, which is the only automated baseline configuration scanner that enables government agencies and contractors to test and assess their compliance with the National Checklist Program (NCP) guidelines, of the National Institute of Standards and Technology (NIST), for IBM z/OS and RACF.


Prior to joining Vanguard, Marshall served 11 years in software development management at Computer Associates and Innovative DP Designs, Inc., where he led the development of IMS database utilities. He was also a professor of computer science at Solano College in Fairfield, California.


Marshall holds one shared patent on a method of reorganizing IMS databases online. He is also an expert on NIST security standards. Marshall remains an active educator and speaker on numerous z/OS security and compliance topics at RACF User Groups (RUGs), Vanguard’s annual security and compliance conference and other industry conferences.


Marshall holds a BS in computer science and MBA from Sonoma State University.

Brian Caskey

CMO – Chief Marketing Officer

Brian Caskey, Chief Marketing Officer for Vanguard Integrity Professionals, has a 30-year track record as a senior executive in global marketing, corporate strategy, business development and global branding.


Prior to joining Vanguard, Caskey served as CMO at Zhone Technologies (NASDAQ) where he spearheaded a company-wide global rebranding campaign, launched multiple new product lines and led strategic sales initiatives resulting in top-line revenue growth and increased margins. Preceding Zhone Caskey was CMO at UTStarcom (NASDAQ) where he was responsible for worldwide marketing and global branding. Caskey also served as Vice President of Strategic Marketing at 3Com (NASDAQ).


Caskey is regularly a featured speaker at cybersecurity and technology conferences worldwide. He earned his degree in electrical engineering, attended The Wharton School of the University of Pennsylvania and Duke University’s Fuqua School of Business.

Mark VanWormer

Vice President of Corporate Operations

Mark VanWormer, Vice President of Corporate Operations for Vanguard Integrity Professionals, has over twenty years of senior leadership experience in areas of complex project management, material inventory, retail sales and staff training and development. Mark’s proven capability to recognize and seamlessly transition into changing and emerging markets and constantly delivering exceptional results in a fast-paced, high pressure environment have paid dividends in the advanced threat-scape of cybersecurity at Vanguard.


Prior to Vanguard, Mark was recalled to the United States Navy as the Chief of Naval Operations.  Prior to that, VanWormer worked for PepsiCo as the On-Premise Director and Sales Manager.  VanWormer’s first military engagement was as an officer in the United States Navy as Surface Warfare Officer.


VanWormer earned his double major in Finance and Accounting from the University of Arizona, Eller College of Management.  Mark also earned his Project Management Professional Certification.

Roxane Rosberg

Vice President of Customer Relations and Conference

Roxane Rosberg, Vice President of Customer Relations and Conference for Vanguard Integrity Professionals, joined Vanguard in 2001 as a key member of the executive team.  Rosberg is the strategic liaison between Vanguard and our largest customers.  As Head of Customer Relations, Rosberg is the essential link between Vanguard customers and the Vanguard Executive Team.  Rosberg helps solve complex and sensitive business issues along with overseeing internal and external events.  Rosberg is also responsible for the highly successful VSC Conference Program.


Rosberg is fluent in German and earned her Bachelors degree from the University of Dayton.

John Connors

Vice President of Technology

John Connors has more than 35 years of cybersecurity experience. John joined Vanguard´s Professional Services Team as a Senior Professional Services Consultant in April 2002. Today, John has assumed leadership of technical operations for Vanguard and guides Vanguard clients with various enterprise security issues as customers struggle with integration of z/OS Security Server and numerous other enterprises security systems.  Connors a recognized expert in multiple cybersecurity disciplines, including securing TCPIP and other communication protocols, securing UNIX implementation and evaluations of network-based security control systems.


Connors has a broad based technical background with expertise and certifications including Microsoft Certified Systems Engineer (MCP, MCP+I, MCSE), Cryptographic System Repairman, Computer Languages including .NET, C#, C++, ADA, PHP, Visual Basic, HTML, SQL, Perl, Dbase III, ACCESS; CISCO Firewalls, Switches, Routers, Frame Relay, ATM, Microsoft Information Server, Microsoft SQL Server, Microsoft Site Server, VTEL Video Communications Systems, TC2000, Multi-point Conference units, AT&T Switches, Dimension 400, 2000, System 75/85 and G3.


Prior to joining Vanguard, Connors served for over 24 years in the United States Air Force where he was the Secure Communication Specialist/Superintendent of Network Operations. After a long, successful career with the military, he finally retired as Chief of Special Projects responsible for managing large scale command control communication and computer systems. John´s commercial background roles include Operations Manager and Chief Architect for a large ASP and Senior Systems Engineer for a major computer integrator.

Yvonne Shoup

Vice President of Administration

Yvonne Shoup, Vice President of Administration for Vanguard Integrity Professionals, joined Vanguard in 1992.  Yvonne is a strategic member of the executive team responsible for Vanguard’s employee well-being and corporate administration.  Shoup has held key many positions at Vanguard in her advanced tenure. As Head of Administration at Vanguard, Shoup is the essential link between Vanguard and it’s employees.


Shoup earned her degree from California State University – Fullerton.

Dan Townsend

Inside Legal Counsel

Dan Townsend, Inside Legal Counsel for Vanguard Integrity Professionals, has worked with technology-focused businesses for over 20 years and has been practicing law for 7 years. He received his Bachelor of Science in Microbiology from California Polytechnic State University, San Luis Obispo.  Prior to his current role as Counsel, Dan had an extensive career in the biotechnology industry working for large and small enterprises including Genentech, Inc., Millipore Corporation, and Ciphergen Biosystems.  He has served in a variety of roles including manufacturing operations, process science, and field sales and service.


Dan received his Juris Doctor from California Western School of Law in San Diego and specializes in business and intellectual property law.