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18 Grados Design is a multidisciplinary design-build architecture and engineering practice based in Puerto Rico, specializing in contemporary design and comprehensive project development. Founded in 2013, the practice delivers a diverse range of services encompassing architecture, civil and structural engineering, permitting, and construction management. It supports projects across multiple sectors, ranging from custom single-family residences to complex retail expansions and mixed-use developments. By integrating design and construction under a single collaborative framework, 18 Grados Design streamlines the execution of both small-scale renovations and large-scale commercial developments.

Full-Service Architecture & Engineering Design

Cost-effective, one-stop engineering, surveying, and planning services

Design Solutions That Shape Communities

Advancing Public Safety and Efficiency within the Built Environment

Multidisciplinary Engineering, Special Inspections & Expediting Services

California's Only One Stop Shop

Innovation. Integrated

Texas Civil Engineering Professionals

Engineering expertise. Easy communication. Collaborative solutions.

Allison Structural Group is a Columbus, Ohio-based structural engineering and inspection consulting practice serving developers, architects, contractors, realty companies, and facility owners. It provides structural design for new and existing buildings, site civil consulting, condition assessments, and industrial support structures. Project types range from residential additions and tenant improvements to industrial plant upgrades and commercial property acquisitions. The practice delivers projects using BIM and Revit for clear, coordinated design documentation.

Founded in 1950, Alper Audi, Inc. is a St. Louis-based structural engineering practice with engineers registered in more than 45 states. It serves architects, contractors, developers, owners, and government clients across commercial, industrial, institutional, and public markets. More than 50 percent of assignments are delivered on a design-build basis, and annual project volume contributes to more than $2.5 billion in aggregate construction value.

Multi-Disciplinary Architecture, Structural Engineering, and BIM Solutions

Inspired Designs. Proven Experts.

Elevating lives through effective design

Designing Experiences. Building Relationships.

Bringing Vision to Reality Since 2014

Bringing Architectural Visions to Life

Plan. Design. Engineer.

Dream Bigger, Build Better

Reliability You Can Count On.

Partners for Architecture

Building Partners

Full-service structural engineering