CSJ Design Collaborative:

A Leading BIM Service Provider Specializing in Architecture, Structural Design, and Tower Engineering.

CSJ Design Collaborative, based in Phoenix, AZ, is a premier BIM service provider and a leading architectural and structural engineering firm with over 25 years of experience. We specialize in delivering innovative design solutions, combining advanced Building Information Modeling (BIM) with expert Architecture, Structural Design, and Tower Engineering to create cutting-edge, efficient, and sustainable projects 

Founded by Jeffrey Robertson, our firm has become the go-to partner for industry titans, from architects and engineers to contractors, construction managers, and owners. Having successfully completed over 4800 projects predominantly across the West Coast, including Arizona, California, Washington, Utah, New Mexico and Colorado, as well as in Alaska and Hawaii, CSJ is expanding its presence into the East Coast market. We continue to be recognized for delivering high-quality design and engineering services, with a focus on growth in new regions.

At CSJ, our BIM capabilities are integral to delivering high-quality Designs that are efficient and help the clients save a lot of construction time by identifying issues in the design process. Our team supports Architectural, Structural, and MEP BIM services ranging from LOD 100 to 500 for residential, commercial, and infra projects.

We enhance coordination across all aspects of design and construction. This synergy enables us to address potential conflicts early, streamline workflows, and achieve faster turnaround times while maintaining the highest standards of quality. Our comprehensive approach ensures that each project benefits from seamless integration and meticulous attention to detail, resulting in robust and well-coordinated design solutions.

Our architectural team brings advanced Revit modeling expertise, offering precise, fully coordinated designs for residential, commercial, and institutional projects. With our cutting-edge Revit capabilities, we ensure design efficiency, seamless collaboration and accuracy at every stage of the project, translating concepts into reality with innovative solutions. 

On the structural side, CSJ provides engineering expertise in designing safe, durable, and performance-driven structures, whether using steel, concrete, wood, or masonry. Our structural engineers are skilled in solving complex design challenges, ensuring each building we work on meets the highest standards of safety, functionality, and longevity—whether it’s a custom home or a large multi-story development.

In addition to our core architectural and structural capabilities, CSJ brings specialized expertise in tower engineering, focusing on the structural analysis of wireless towers to ensure stability, load optimization, and resilience against environmental forces like wind and seismic events. From designing new towers to modifying existing ones, we prioritize safety, reliability, and compliance with regulatory standards. 

We also provide comprehensive electrical engineering and design support for tower infrastructure, including power systems, grounding, and lightning protection. Our integrated structural and electrical engineering solutions ensure the continuous and efficient operation of wireless communication systems, delivering seamless performance and durability. 

Vision & Mission

Our vision at CSJ Design Collaborative is to be a global leader in architectural and structural engineering, setting new standards for innovation and quality in the construction industry. We aim to create inspiring and functional structures that improve the quality of life and the environment. By building strong relationships with our clients and partners, we seek to drive progress and anticipate the needs of tomorrow, shaping the future of the built environment.

At CSJ Design Collaborative, our mission is to deliver innovative and reliable architectural and engineering solutions using cutting- edge BIM technologies. We are dedicated to enhancing project quality and efficiency, reducing costs, and fostering a client-centric approach that exceeds expectations. Through continuous learning and collaboration, we aim to lead the architectural, engineering, and construction industries towards sustainable and forward- thinking practices.

1000+

BIM Projects Delivered

Leveraging the power of BIM to transform complexity into clarity, ensuring seamless project coordination and execution with cutting-edge digital solutions.

1500+

Structural Engineering Projects

Providing innovative and reliable structural engineering solutions that form the backbone of every successful project.

270+

Valued Clients

Partnering with businesses to turn their vision into reality, fostering trust and delivering excellence at every step.

1800+

Tower Engineering Solutions

From concept to completion, we specialize in comprehensive tower engineering services that redefine industry standards.

Our Team

Jeffrey Robertson, P.E., S.E.

President & CEO

John L Suhrie, P.E.

Strategic Partner, East Coast Operations

Sandon Brooks, P.E.

Founder Q Engineers & Strategic Partner – CSJ

Prashant Gokhale

VP – BIM Services

Akash Bhimawar

Lead BIM Architect

Paul Nelson – AVP

Strategic Alliances

Jeremy Oakes

Senior BIM Lead

Greg Smith

Business Development Manager – BIM Services

Ben Sanders

Structural Project Manager

Tracy Robertson

Office Manager and Administration