Sorren, a Top 50 national tax, accounting, and advisory firm, has announced that RTO & Company, a respected full-service CPA and advisory firm, has joined its national network. The partnership strengthens Sorren’s presence in the Pacific Northwest and combines RTO’s nearly 80-year legacy of local expertise with Sorren’s national resources, technology, and industry capabilities.
Founded in 1946, RTO has been a trusted advisor to clients across agriculture, healthcare, government, nonprofit organizations, retail, and individual sectors. Known for its deep community roots and personalized approach, the firm now brings these strengths to a national platform while continuing to serve clients from its current Oregon office.
“RTO & Company has an incredible legacy of service, strong client relationships, and a deep connection to the community—all values that align perfectly with Sorren’s vision,” said Josh Tyree, President of Sorren. “Together, we’re strengthening our ability to serve Oregon businesses with the personal attention of a local firm backed by the reach and resources of a national network.”
“This partnership opens the door to tremendous opportunities for our clients and our team,” said Nate Reagan, Managing Partner of RTO & Company. “With Sorren, we can deliver broader capabilities and innovative solutions while continuing to offer the trusted, high-quality service our clients have relied on for generations.”
Sorren was formed in 2025 through the combination of leading regional firms and private equity backing, with a mission to build a forward-thinking, nationally connected firm that remains deeply rooted in local markets.
For more information, visit www.sorren.com. For inquiries, please contact pr@sorren.com.