KANSAS CITY, Mo.--(BUSINESS WIRE)--Custom Truck One Source, Inc. (NYSE: CTOS), a leading provider of specialty equipment to the electric utility, telecom, rail, and other infrastructure-related end markets, today reported financial results for the fourth quarter and full year ended December 31, 2025. All comparisons are to the comparable period in the prior year unless otherwise noted. CTOS Fourth-Quarter and Full-Year Highlights Record fourth quarter revenue of $528.2 million, an increase of $.