Business Details
50+ Years
experience
Your Trusted Engineering Partner in Bay City, MI
Founded in 1963, MacMillan Associates has built a reputation as a trusted multi-disciplined engineering firm serving the Great Lakes Bay Region and clients nationwide. Our team of 42 professionals, including 31 engineers with expertise ranging from entry-level to over 50 years of experience, delivers personalized attention to every project. We specialize in structural, mechanical, and electrical engineering solutions for new construction, renovations, and sustainable design. Our staff maintains an average tenure of 15 years, ensuring continuity and deep institutional knowledge. We employ advanced technologies like 3D laser scanning and BIM coordination to enhance project accuracy and efficiency.Our project management approach emphasizes clear communication, cost control, and timely delivery across projects of all sizes. As a firm with historical roots in the Sage Lumbermill building, we combine tradition with innovation to meet modern engineering challenges. Our commitment to quality is demonstrated through comprehensive services from initial concept to construction completion. We maintain direct principal involvement in all projects, ensuring accountability and technical excellence. With a focus on client collaboration, we develop tailored solutions that balance functionality, sustainability, and budgetary considerations.
Services
Structural Engineering
Mechanical Engineering
Electrical Engineering
Industrial Engineering
3D Laser Scanning
BIM Coordination
Project Management
Commissioning Services
LEED Design
Building Renovations
Details
- Year established: 1963
Highlights and features
- We offer 60+ years of engineering experience since 1963
- Our team includes 13 licensed Professional Engineers
- We maintain direct principal involvement in all projects
- We employ advanced 3D laser scanning technology
- Our staff has an average tenure of 15 years
Services
Structural Engineering
Our Structural Engineering Department specializes in solving complex structural challenges while creating economical solutions. We design and analyze steel, concrete, masonry, and timber systems, addressing foundation problems through underpinning, sheet piling, and deep compaction methods. Our expertise extends to preserving deteriorated structures like concrete parking decks and historic masonry buildings using advanced analytical techniques combined with proven materials.
3D Laser Scanning
MacMillan Associates utilizes laser scanning technology to create precise point clouds and high-definition documentation of facilities. This service captures as-built conditions and thermal imaging data, delivering compatible AutoCAD and REVIT files. Our scanning solutions support accurate measurements for renovations, retrofits, and new construction projects across various industries, improving design accuracy and reducing field coordination issues through detailed spatial documentation.
Mechanical Engineering
Our Mechanical Engineering Department designs comprehensive building systems including heating, ventilation, plumbing, and geothermal solutions. We provide commissioning services to verify system performance and re-commissioning for existing systems. Our expertise covers chillers, boilers, VAV systems, and solar heating, ensuring energy-efficient mechanical solutions that meet both new construction and renovation requirements while maintaining occupant comfort and operational efficiency.
Electrical Engineering
The Electrical Engineering Department designs building power and lighting systems, including specialty lighting, emergency power, and renewable energy solutions. We conduct short circuit analysis and arc flash studies while providing low voltage system design for communications, security, and data networks. Our electrical solutions integrate modern energy-efficient technologies with reliable power distribution systems for commercial, industrial, and institutional facilities across the United States.
Project Management
Our project managers oversee multi-discipline teams through all project phases, from initial planning to construction completion. We provide cost control, scheduling, and coordination services for projects of varying complexity, managing both office-based and on-site operations. With direct principal oversight, we ensure seamless integration of structural, mechanical, and electrical systems while maintaining budget adherence and timely delivery for clients throughout the Great Lakes Bay Region and nationwide.
People
Bill Thayer
SEAMi Engineer of the Year
Bill Thayer is a licensed Professional Engineer recognized as SEAMi Engineer of the Year. With extensive experience in structural engineering, he leads complex projects at MacMillan Associates, applying advanced analytical techniques to solve challenging structural problems while maintaining cost-effective solutions for commercial and industrial clients.
Questions
What engineering disciplines does MacMillan Associates offer?
We provide structural, mechanical, electrical, and industrial engineering services, along with 3D laser scanning and BIM coordination for comprehensive design solutions.
How long has MacMillan Associates been in business?
Established in 1963 as McClurg and MacMillan, Inc., we have over 60 years of engineering experience serving clients in the Great Lakes Bay Region and nationwide.
What types of projects does MacMillan Associates handle?
We work on new construction, building renovations, LEED sustainable designs, and industrial facilities, providing complete engineering services from concept through construction completion.
Does MacMillan Associates offer commissioning services?
Yes, we provide commissioning for new buildings and retro-commissioning for existing systems to ensure optimal performance of mechanical, electrical, and structural systems.
What technology does MacMillan Associates use?
We utilize 3D laser scanning, AutoCAD, REVIT, and Navisworks Manage for precise modeling, BIM coordination, and accurate as-built documentation of facilities.
How experienced is MacMillan Associates' staff?
Our 42-member team includes 31 engineers (13 licensed PEs) with experience ranging from entry-level to over 50 years, maintaining an average tenure of 15 years.
