The Ibbs Consulting Group

Talented & Experienced Staff

The Ibbs Consulting Group was founded in 1992 by Professor William Ibbs. His team uses Dr. Ibbs' research to provide unique, practical, reliable solutions to his clients. 

About Dr. William Ibbs

Dr. William Ibbs is the founder and leader of The Ibbs Consulting Group. He teaches construction management and accounting concepts at UC Berkeley, and is recognized as a leading thinker and testifying expert on various construction matters, including productivity and scheduling. 

The Ibbs Consulting Group

An Expert Witness & A Project Neutral

Dr. Ibbs has served as an expert witness and project neutral, qualifying to testify in federal and state courts, and international arbitration. His specialty is change and its impact on labor productivity, including cumulative impact conditions. He has also testified on construction defects, accounting, loss of economic value, personal injury, and takeover matters.

He has conducted research work for the Construction Industry Institute, US Army Corps of Engineers, Caltrans, and other sponsors. 


  • Areva
  • Bechtel
  • Chevron
  • CH2M-Hill
  • Obayashi
  • Siemens
  • The U.S. Navy
  • Governmental agencies throughout the U.S., Africa, Asia, Europe, the Middle East, and South America.

Awards & Memberships

Professor Ibbs has received recognition and awards from various professional organizations.

  • Associated General Contractors
  • American Society of Civil Engineers
  • The Beavers
  • Project Management Institute
  • American Association of Cost Engineers
  • Dispute Review Board Foundation

His Work

Dr. Ibbs has published over 180 articles on the subject of construction management and has also participated in panels for the National Academy of Engineers and the National Science Foundation. He researched for the Corps of Engineers, Caltrans, and numerous other organizations.


Dr. Ibbs earned B.S. and M.S. degrees from Carnegie Mellon University and a Ph.D. from U.C. Berkeley, all in civil engineering with a construction management emphasis. He has minors in accounting and finance.

Our Team

Paul L. Stynchcomb

Paul L. Stynchcomb, CCM, PSP, CFCC


Farid Saddik, MIEAust CPEng NER APEC IntPE

George Goubran

George Goubran

Magudia Photo

Hiten Magudia

Long Nguyen

Long Nguyen

Ron Shumway

Ron Shumway