Engineers-Geotechnical go Results Found: 2 Button group with nested dropdown Robinson Engineering, Ltd. Robinson Engineering, Ltd. P.O. Box 7408 Champaign IL 61826-7408 (217) 530-4084 Midwest Engineering and Testing, Inc. Midwest Engineering and Testing, Inc. 501 Mercury Dr. Champaign IL 61822-9649 (217) 359-2128