The RimRiser™ Story

Adjustable Manholes, Catch Basins, and Precast Tops. Easy as turning a screw.

With more than thirty years of experience as a contractor, developer, and craftsman, CEO Aaron Barr knew there had to be a better way to set municipal castings and precast tops to finished grade.
RimRiser is the Simple, Safe, Fast and Accurate solution for today’s infrastructure.  Aaron and his team are passionate about efficiency driven design and committed to the success of all stakeholders in the construction process.

RimRiser is revolutionizing the way grade-level infrastructure is installed across the nation. Our solution is designed to easily upgrade standard precast concrete and municipal cast iron products. RimRiser’s superior installation solution replaces the century-old methods still used today.


Key Team Members

aaron bar

Aaron Barr

Aaron has over 35 years of hands-on experience in the construction industry, and more than 20 years of experience in project management and land development. At age 14, he began working as a laborer and quickly advanced his civil construction skills, especially in the areas of excavation, horizontal and vertical construction, and marine construction. Aaron attended Laney College in Oakland, CA and continues his quest for knowledge with further higher education and by surrounding himself with experienced team members and advisors. He has a special knack for quickly creating simple and smart solutions to address construction pain points, which led to the creation of the first RimRiser in 2017. When he’s not starting a company, you can find Aaron working side-by-side with construction workers to assure jobs get done correctly and on time.
gabe judah

Gabe Judah

Operations Manager
Gabe joined RimRiser in July of 2019 after working for Union Pacific Railroad as a yard supervisor. Previously, he spent 17 years in emergency medical services as a field training officer, including 10 years on a specialized mobile intensive care unit at a prominent children’s hospital. It was there that he honed his ability to multitask in high-stress and fast paced situations. Gabe attended Eastern Oregon University in La Grande, Oregon.
matt stiller

Matt Stiller

VP of Sales
Matt joined RimRiser in April of 2020. Prior to joining RimRiser, Matt was Territory Manager for Oldcastle Precast. Matt has worked in or around construction for more than 20 years. He started in the field as a site supervisor before transitioning to become a key team member of the successful Portland-based start-up company, Stormwater Management Inc. (SMI, later acquired by Contech). With SMI he helped to develop and then manage manufacturing, purchasing, customer service, and maintenance departments. Matt has extensive experience leading sales and promotions teams while also serving as a project consultant and regional product manager. Matt is a graduate of Multnomah University in Portland, OR.
Kelly Patterson (1)

Kelly Patterson

BS in Civil Engineering
Kelly Patterson graduated with a BS in Civil Engineering from Oregon State University, then worked as a surveyor, explosives handler, concrete dam, and bridge construction engineer in CO, AK, WA, CA, OR. Hired at Oldcastle in 1985 as engineering manager then moved to West Region Engineering Manager. Covering plants in WA, OR, CA, and AZ. Director of Engineering in 2005 overseeing 80 manufacturing facilities. Relocated to WA in 2018 to manage engineering responsibilities for 5 Precast plants in the NW. Current or former Registered P.E. in OR, WA, ID, NV, UT, NM, CO, TX, WY, OH, AZ, and Guam. Kelly enjoys traveling with his wife Carol, mountain biking, motorcycles, aviation, and enjoying the great outdoors. In 2021, Kelly joined RR to apply his vast knowledge of engineering, product design & development, intellectual property, specification writing, and hands-on ability.