DECA, Inc. Share: Engineers & Consultants DECA, Inc. Visit Website 415 Conant St. Maumee, OH 43537 (419) 891-0022 (419) 891-0026 (fax) Rep Info Map Whom to Contact Robert Brannan 415 Conant St. Maumee, OH 43537 Phone: (419) 891-0022 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.