Horner & Shifrin, Inc. Aquires O'Neill & Company

PSMJ Resources, Inc.
Posted on: 08/13/26
Written by: PSMJ Resources, Inc.

Horner & Shifrin, Inc. ("Horner & Shifrin"), a full-service engineering firm, has acquired O'Neill & Company ("O'Neill"), a Salt Lake City-based transportation engineering consulting firm. PSMJ initiated the transaction and advised Horner & Shifrin.

The acquisition marks Horner & Shifrin's expansion into the western United States, establishing its first office in the region while further strengthening the firm's transportation practice. Together, the firms bring complementary expertise in transportation planning, traffic engineering, roadway design, and intelligent transportation systems, enhancing their ability to serve state and local agencies across the Midwest, South, and West. The acquisition reflects Horner & Shifrin's long-term strategy of expanding into high-growth markets through the addition of established teams with complementary expertise and strong client relationships.

O'Neill & Company specializes in traffic engineering, transportation planning, traffic signal design, intelligent transportation systems (ITS), roadway lighting, and signal timing. Since its founding, the firm has designed more than 400 traffic signals across Utah and has built a reputation for delivering practical transportation solutions. The entire O'Neill team will join Horner & Shifrin, with founder Carrie O'Neill continuing to lead the Salt Lake City office.

"Growth through acquisition has always been about finding the right people with teams that share our values, our commitment to clients, and our belief that employee ownership makes a difference. O'Neill & Company is exactly that. This is a strong team with an excellent reputation, and we are excited to welcome them to Horner & Shifrin," said Curt Peitzman, President of Horner & Shifrin.

"Horner & Shifrin's culture, depth of expertise, and employee-ownership model made this the right fit for our team and our clients. We're proud of what we've built in Utah, and this partnership gives us the platform to do even more," said Carrie O'Neill, Vice President, Regional Manager of Transportation.

About Horner & Shifrin

Founded in 1933, Horner & Shifrin, Inc. is a 100% employee-owned engineering firm providing transportation, water, wastewater, stormwater, structural, environmental, surveying, geospatial, and construction engineering services. Headquartered in St. Louis, Missouri, the firm serves public- and private-sector clients throughout the United States, delivering practical engineering solutions that improve the communities it serves.

About O'Neill & Company

Founded in 2012, O'Neill & Company is a transportation engineering consulting firm specializing in traffic engineering, transportation planning, traffic signal design, intelligent transportation systems, roadway lighting, and signal timing. Based in Salt Lake City, Utah, the firm serves the Utah Department of Transportation, municipalities, counties, and local agencies throughout the region, providing transportation solutions that improve safety and mobility.

About PSMJ Resources, Inc.

Grounded in more than 50 years of serving exclusively the AEC industry, PSMJ Resources, Inc. is an award-winning boutique M&A advisory firm. Working to develop and execute M&A strategies for firms of all sizes, PSMJ has had unparalleled success in helping ownership teams of AEC firms achieve their goals. For more information, click here.

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