Public engineering firm directory
Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
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Architectural, Electrical & Mechanical Design
Project: Montclair State University
Custom Engineering is an MEP engineering firm founded in 1974 and headquartered in Independence, Missouri. It provides mechanical, plumbing, electrical, lighting, BIM, and commissioning design services for commercial, industrial, and institutional facilities nationwide, licensed in 39 states plus the District of Columbia. Custom Engineering has recently aligned with Timberlake Engineering and TIE Consulting to offer an integrated MEP plus low-voltage design approach. Clients include architects, owners, and construction managers across healthcare, education, government, industrial, and commercial sectors.
Service detail: Mechanical/Plumbing Design
Zona Technical Engineering, PLLC is a full-service MEP consulting engineering firm headquartered in Tucson, Arizona. Founded in 2022 by Principal Mechanical Engineer Dave Tyrrell and Principal Electrical Engineer Alec Zimmermann, it provides in-depth Mechanical, Electrical, and Plumbing design services for commercial new construction and renovation projects across Arizona and the Southwest. Services include HVAC and plumbing systems design, electrical design, arc flash studies, fire protection system design criteria, and construction administration, all produced in-house using Revit and BIM. It has served healthcare facilities, university campus buildings, government courthouses, research laboratories, manufacturing facilities, hospitality venues, and mixed-use residential projects throughout the Tucson metropolitan area.
Project: UA Global Center, Phase 2