Business Details
50+ Years
experience
Your Trusted Engineering Partner Since 1957
Founded in 1957 by Walter J. Marquess, P.E., Marquess & Associates has built a legacy of delivering high-quality engineering solutions tailored to client needs. Our firm specializes in civil, structural, mechanical, electrical, and geotechnical engineering, supported by comprehensive construction materials testing and drone inspection services. With over 65 years of experience, we serve both public and private sectors across Southern Oregon and surrounding regions. Our commitment to innovation, cost-effectiveness, and professionalism ensures projects meet evolving energy efficiency and seismic standards. Over 80% of our business comes from repeat clients, reflecting our dedication to client satisfaction through hands-on project management and in-house expertise.Our team of licensed engineers and technicians provides end-to-end services, from initial design to construction administration, ensuring precision and reliability. We prioritize community impact, aligning our work with the needs of the regions we serve. Our principals remain actively involved in every project, guaranteeing technical excellence and adherence to stringent design protocols. This approach has solidified our reputation as a trusted partner for complex engineering challenges.
Services
Structural Engineering
Civil Engineering
Mechanical Engineering
Geotechnical Engineering
Electrical Engineering
Fire Protection Engineering
Special Inspections
Drone Inspection Services
Details
- Year established: 1957
Highlights and features
- We offer over 65 years of engineering expertise in Southern Oregon.
- Our in-house team provides comprehensive civil, structural, and geotechnical services.
- 80% of our business comes from repeat clients.
- Principals remain actively involved in all project phases.
- We maintain stringent quality control through hands-on project management.
What people say
Professional detailed engineering
Timely inspections
Highest quality product
Irreplaceable partner
Stringent project protocols
Services
Structural Engineering
Our structural engineering team specializes in analyzing and designing complex structures that meet evolving seismic and energy efficiency standards. We provide seismic studies, renovations, and construction administration services for diverse building types, including bridges. Our engineers use advanced tools to calculate snow and wind loads specific to the Pacific Northwest region.
Civil Engineering
We offer full-cycle civil engineering services, including site development, stormwater management, and utility system design. Our team coordinates with other disciplines to ensure cost-effective solutions for public works projects, subdivisions, and commercial developments. We utilize AutoCAD Civil 3D and HEC-RAS for precise modeling and topographic surveying.
Geotechnical Engineering
With 30+ years of regional expertise, our geotechnical department assesses soil conditions, groundwater control, and seismic risks. We conduct subsurface evaluations, laboratory testing, and construction monitoring to support foundation design and drainage solutions. Our services address liquefaction risks and ensure buildable, cost-effective designs for diverse projects.
Mechanical Engineering
Our mechanical engineers design energy-efficient HVAC and plumbing systems for healthcare facilities, industrial plants, and commercial buildings. We perform code studies, fire protection design, and energy efficiency analyses using Revit 3D modeling. Our solutions prioritize occupant comfort while meeting ASHRAE standards and local building codes.
Electrical Engineering
We deliver lighting design, power distribution, and energy management solutions for modern buildings. Our team uses 3D photorealistic simulations to optimize illumination and designs telecommunication systems for complex projects. We ensure compliance with energy codes while balancing operational efficiency and safety requirements.
People
Robert Gunter
President
Civil engineer with 25+ years of expertise in water systems and roadway design. Oversees project coordination with clients and agencies to ensure technical excellence and client satisfaction.
Jim Higday
Vice President
Project manager with 30+ years of experience in civil engineering. Specializes in public infrastructure projects and ensures adherence to design standards and client requirements.
Juan Moreira
Secretary
Licensed Professional Engineer managing administrative and technical operations. Provides strategic oversight for project execution and client relations.
Randy Cleveland
Structural Engineer
Licensed structural engineer leading design teams for complex building systems. Ensures compliance with seismic and building code requirements across diverse projects.
Oscar Zuniga
Mechanical Engineer
Specializes in mechanical system design for industrial and commercial facilities. Focuses on energy-efficient solutions and code compliance for HVAC and plumbing systems.
Questions
What engineering services does Marquess & Associates offer?
We provide civil, structural, mechanical, electrical, geotechnical engineering, special inspections, and drone inspection services for public and private sector projects.
How long has Marquess & Associates been in business?
Founded in 1957, we have over 65 years of engineering experience serving Southern Oregon and surrounding regions.
What makes Marquess & Associates different from other firms?
Our in-house multidisciplinary team, hands-on principal involvement, and 80% repeat client rate demonstrate our commitment to technical excellence and client satisfaction.
Do you handle both public and private sector projects?
Yes, we serve government agencies, developers, contractors, and private clients with tailored engineering solutions for all project types.
How do you ensure project quality and compliance?
Our licensed engineers and technicians follow rigorous quality control processes, adhering to local codes and industry standards throughout design and construction phases.
Can you assist with complex geotechnical challenges?
Our geotechnical team specializes in regional soil conditions, seismic risks, and foundation design, supported by on-site laboratory testing capabilities.
