Our structural engineers, architects, lab/field testing specialists, and support personnel are committed to the delivery of attentive, responsive problem solving services

Headquartered in Willowbrook, Illinois and offices in Chicago, our staff are deployed on projects located throughout the U.S. and globally. Collectively, our engineering and architectural staff hold licenses in 44 states and the U.S. Virgin Islands.

Our Principals are recognized leading experts in their respected fields of forensic structural engineering, forensic architecture, field/laboratory testing, and building sciences. With accomplished careers spanning over 30 to 40 years, each brings unparalled knowledge, project execution, and expert witness experience to the leadership and delivery of our expert consulting services.


Kurt R. Hoigard, P.E., SECB, F.ASTM

Otto C. Guedelhoefer, S.E., F.ASCE

Robert J. Kudder, Ph.D., S.E., FASTM

Dennis K. Johnson 

Engineers | Architects

Robert W. Kritzler, S.E.
Senior Consulting Engineer


George R. Mulholland S.E., P.E. 
Senior Consulting Engineer

Brian T. Lammert, S.E., P.E.
Consulting Engineer


Sarah K. Flock, NCARB, BECxP, CxA+BE 
Consulting Architect

Robert C. Haukohl, P.E.
Senior Engineer

Patrick E. Reicher, S.E., REWC, REWO, CCS, CCCA
Senior Engineer

Andrea L. Baird, NCARB, LEED AP BD+C, BECxP, CxA+BE
Architect II

Carole M. Ceja, NCARB, RRC
Architect II


Business Operations

Barbara J. Smith, S.E., P.E. 
Director of Business Operations



Kate M. Brannelly, FSMPS, CPSM
Director of Business Development