about us...


At Prairie Sky Consulting we look to the horizon but know that we only get there if we take one step at a time.


Prairie Sky Consulting engages a world-wide network of subject matter experts and subcontractors to bring only the skills you need for your project to bear.

Founder's Bio

E. William (Bill) East is an serial innovator whose career spans the areas of planning and scheduling, quality management, and building information modeling. East started with the U.S. Army Corps of Engineers in the construction trailer and District. While there he created the first minicomputer construction management suite for Area Engineers.

East's aptitude for computers lead to his move to the Construction Engineering Research Lab. East's first innovation at the lab was the Corps’ Standard Data Exchange Format (SDEF). This format has been getting Corps’ contractors paid every month of every job for over 20 years. He also developed parametric planning and automated schedule analysis tools, and provided related consulting services on Corps’ and Army projects.

East’s Design Review and Checking System (DrChecks) streamlined design quality management for public project stakeholders at the federal, state, and local levels. When last checked, DrChecks, now part of the ProjNet™ suite, was being used by over 120,000 users world-wide.

In 2007 East invented the Construction-Operations Building information exchange (COBie). COBie is an international standard that squeezes profits from an otherwise wasteful construction handover process. East currently is Owner, Prairie Sky Consulting where he helps owners and contractors specify and meet COBie requirements.

East is a former American Society of Civil Engineer, Government Civil Engineer of the Year and has recieved numerous other awards from organizations such as the National Institute of Building Sciences (NIBS), FIATECH, and the Construction Specification Institute. East has also been recognized for innovation and technology transfer by the Federal Laboratory Consortium, Department of Defense, the Corps of Engineers, and Government Executive Magazine.

East has degrees in Civil Engineering from Virginia Tech (B.S.) and the University of Illinois (M.S. and Ph.D.). East's research identified new resource scheduling concepts for facility managers. East is a registered Professional Engineer in the state of Virginia and is a Fellow of American Society of Civil Engineers (ASCE).


Prairie Sky Consulting LLC
1104 Parkview Drive
Mahomet, IL 61853

"Prairie Sky Consulting" is a Registered Trademark #4,648,953

DUNS: 079386831


in Print

Buy this book today!

Buy this book today!

Buy this book today!


"A Case Study Inteview with Bill East PhD," in Deutsch, Randy (2015) "Data-Driven Design and Construction," Wiley and Sons

East, E. William, Bogen, Alfred C., "A Domain-Independent Facility Control Framework," in "Building Information Modeling: Applications and Practices," ed. Issa, R., Olbina, S., American Society of Civil Engineers, Chapter 12, 2014

E. William East (2013) "Using COBie," in Teicholtz, Paul ed. BIM for Facility Managers, International Facility Management Association, pp 106-144. Print and Kindle edition available.