Engineers & Designers go Results Found: 4 Button group with nested dropdown Primary Engineering, Inc. Primary Engineering, Inc. Mechanical and Electrical Consulting Engineers. Mechanical and Electrical Consulting Engineers. 2828 Lake Avenue Fort Wayne IN 46805 (260) 424-0444 Design Collaborative Visionary Investor Design Collaborative 200 East Main Street, Suite 600 Fort Wayne IN 46802 (260) 422-4241 Plant Engineering Services, Inc. Plant Engineering Services, Inc. 3205 Cannongate Drive Fort Wayne IN 46808 (260) 482-1436 RQAW | DCCM RQAW | DCCM 8770 North St., Ste. 110 Fishers IN 46038 (317) 588-1798