Custom Truck One Source, Inc. Reports Record Third Quarter 2026 Results and Increases Full Year 2026 Adjusted EBITDA and SER Revenue Guidance

Ryan McMonagle, Chief Executive Officer of Custom Truck One Source

“In the third quarter, record demand across our core T&D markets drove 16% year-over-year Adjusted EBITDA growth and 24% growth year to date, and we are raising our full-year Adjusted EBITDA outlook for the third time this year. Our SER segment continued to benefit from strong utility end-market demand, with our rental fleet generating a record quarterly average OEC on rent of nearly $1.4 billion and average utilization of 81.5%. We also ended the quarter with record total OEC of $1.76 billion, providing strong visibility into continued SER growth through the fourth quarter and into 2027.”

Ryan McMonagle, Chief Executive Officer of Custom Truck One Source

“In STEM, orders grew 22% year-over-year and backlog reached $342 million, and the third-party deliveries that shifted out of the quarter are scheduled to ship in the fourth quarter. Our earnings growth also drove a further meaningful reduction in net leverage, to 3.70x. As we look to the remainder of 2026 and beyond, CTOS is well positioned to participate in powerful secular trends, including utility grid upgrades and transmission expansion, electrification, data center-driven load growth, and infrastructure spending. We remain disciplined in executing our strategy, with a focus on profitable growth, strategic capital deployment, free cash flow generation, and continued deleveraging. Increasing our investment in the rental fleet reflects that discipline as we put capital behind visible, long-duration transmission demand at attractive returns, with the larger earnings benefit arriving in 2027.”