Engineers go Results Found: 5 Button group with nested dropdown TD&H Engineering; Thomas, Dean & Hosk... TD&H Engineering; Thomas, Dean & Hoskins of Idaho Inc. 210 Main Street Lewiston ID 83501 (208) 746-0938 Mountain Waterworks Mountain Waterworks 504 Main St. Ste. 310 Lewiston ID 83501 (208) 780-3995 Keltic Engineering, Inc. Keltic Engineering, Inc. 315 Adams Lane Lewiston ID 83501 (208) 743-2135 HMH Engineering HMH Engineering 324 20th Street N. Lewiston ID 83501 (208) 503-3503 Alta Science and Engineering Inc. Alta Science and Engineering Inc. 220 E. 5th St. Suite 325 Moscow ID 83843 (208) 882-7858