Sam Pfanstiel
  • An avid distance runner, Sam recently ran two marathons back-to-back in a single weekend!
  • Sam will celebrate 20 years of marriage this year to his beautiful wife, Melinda.  He enjoys playing soccer and volleyball with his three children (ages 17, 16, and 12).



Sam has been a student of innovation, technology, and human behavior since grade school. Once, in middle school, he programmed the library computer to look like he had hacked into the school's grading system and could change student grades -- leading to a short-lived brush with peer popularity.

Over the past two decades, Sam has held CIO and IT leadership roles with five organizations, and managed over 1,000 distinct technology projects.  Sam founded Diverge in 2004 in Broken Arrow, OK.

Sam is in the process of completing his Ph.D. in IT Management with his dissertation to validate a model for forecasting and benchmarking merchant PCI compliance costs.  When complete, he will be able to truthfully say he "wrote the book on the cost of PCI compliance."

Sam is currently engaged as a full-time Solution Principal with Coalfire Systems, Inc., and not taking private consulting engagements at this time. However, if you need Sam to speak at your event or require assistance with your system security and compliance, he would be happy to assist you within his role at Coalfire.

PCI Qualified Security Assessor (QSA & QSA (P2PE))

PCI Professional (PCIP)

ETA Certified Payment Professional (CPP)

Certified Information Systems Security Professional (CISSP)

Certified Information Security Manager (CISM)

Serial Entrepreneur

Business Analyst

IT Project Manager

Solution Architect