Shlomo Orr ,  ​Ph.D., PE (Alberta)

Years of experience: 35

President & CEO

Dr. Orr's expertise spans over several areas of engineering and science, from data analysis to numerical and stochastic modeling, optimization, risk assessment, and intelligent systems applications.

  • ​Ph.D., Hydrology and Water Resources, with minor in Soil and Water Sciences (1993) University of Arizona, College of Engineering and Mines, Department of Hydrology, Tucson, AZ

  • Master of Science, Civil Engineering (1987), University of Hawaii, Dept. of Civil Engineering, Honolulu, HI
  • Bachelor of Science, Civil Engineering (1984), Technion - Israel Institute Technology, Haifa, Israel


  • Taught graduate courses in groundwater hydrology and geostatistics
  • Taught a course in geostatistics (hands-on, using geostatistical software)

          and groundwater modeling to professional consultants (with J. Bear)

  • Taught heap (multi-phase) flow dynamics in an SME course on heap leaching
  • Advised Master and Ph.D. students on advanced projects
  • Peer-Reviewer for Transport in Porous Media (Elsevier) and several other leading journals.
  • Reviewer of a new book by Bear and Cheng, Modeling Groundwater Flow and Contaminant Transport.
  • Appointed to Advisory Boards reviewing environmental investigations and clean-ups for the U.S. Army, Air Force, and Navy

Company founder Shlomo Orr is a leading expert in modeling of complex systems with emphasis on subsurface fluid dynamics and various industrial applications 

Orr & Associates

  • 35 years of extensive consulting, research, and project management experience in modeling, planning, and controlling complex subsurface flow and transport phenomena.
  • Broad background in conceptual and computational-numerical modeling of fluid flow and solute transport in saturated and unsaturated porous and fractured formations, including multiphase and nonisothermal flows.
  • Developed stochastic models to account for uncertainty in heterogeneous media.
  • Published milestone papers in leading journals.
  • Developed Intelligent Control applications for optimal management of various complex natural and industrial systems, including energy (from oil fields to power plants), groundwater remediation, semiconductor manufacturing, financial planning, and more.
  • Reviewer of advanced journals and books.
  • Professional Engineer (Alberta).