commercial construction seattle
marley 420 - commercial construction
industrial commercial construction

J.M. Riley Company

“Building Value, Delivering Results.”

J.M. Riley Company is a trusted commercial general contractor specializing in new construction and tenant improvements across the Puget Sound region. Our hands-on leadership, deep local experience, and risk-conscious approach ensure that every project is delivered on time, on budget, and with precision.

J.M. Riley Company is a trusted commercial general contractor specializing in new construction and tenant improvements across the Puget Sound region. Our hands-on leadership, deep local experience, and risk-conscious approach ensure that every project is delivered on time, on budget, and with precision.

Communication

Effective, timely, relevant

Collaboration

Engaging the entire team

Risk Management

Protecting Your Investment

Experienced – Collaborative – Successful

Experience & Collaboration Create Successful Projects

Success in construction hinges on experience, collaboration, and seamless communication. At JMR, our principals are actively involved from day one, bringing decades of expertise to preconstruction and estimating while also establishing strong communication channels between the GC team, design team, and client. Given the immense flow of information on every project, we’ve developed streamlined, easy-to-use systems that keep all stakeholders informed, ensuring nothing is missed or delayed. This proactive approach minimizes risk and drives successful project outcomes. Let us know about your project—click here to see how we can help you navigate to success.

Experienced – Collaborative – Successful

Experience & Collaboration Create Successful Projects

Success in construction hinges on experience, collaboration, and seamless communication. At JMR, our principals are actively involved from day one, bringing decades of expertise to preconstruction and estimating while also establishing strong communication channels between the GC team, design team, and client. Given the immense flow of information on every project, we’ve developed streamlined, easy-to-use systems that keep all stakeholders informed, ensuring nothing is missed or delayed. This proactive approach minimizes risk and drives successful project outcomes. Let us know about your project—click here to see how we can help you navigate to success.

Passionate – Dedicated – Professional

We Build Value

At JMR, we start with the end in mind—focusing on your vision from day one. By prioritizing your needs at every stage of preconstruction and construction, we add lasting value to your building. Our meticulous attention to detail ensures cost-effective solutions for every challenge, while our lean, efficient project management minimizes risk and maximizes your investment. Contact us today to see how we can help bring your next project to life.

about us

We create lasting relationships by earning your business on every project.

Meet our experienced professional team.

our projects

Focusing on retail, office, and medical/tech projects.

Creating successful projects.

Get Started

Get in touch to learn how we can make your project a success.

Creating lasting relationships

34+ years in the Seattle marketplace

what our clients say

J.M. Riley Co. delivered two major projects for us—our full Shoreline Cadillac renovation and a ground-up, state-of-the-art Cadillac dealership in Renton. I was involved daily and appreciated the professionalism and care they brought to every phase of the process. Their ability to communicate clearly, solve problems quickly, and work collaboratively made the entire process enjoyable. They cared about the outcome as much as I did, and that level of ownership is rare.
Even after completion, they’ve continued to support us—holding subcontractors accountable to ensure the final product reflects the high standards of both JMR and Brotherton. One of their team members even coined a phrase that stuck with me: ‘If you have to ask whether its good enough, our answer will be ‘This is Cadillac.’ That level of pride shows.
Brad Brotherton - Owner, Brotherton Cadillac NW, and Brotherton Cadillac Renton