King Aerospace saw a nearly 38 percent increase in Boeing Business Jets BBJ and other bizliner work in 2019, while that for traditional business aircraft remained flat, the Dallas-based MRO provider announced this week. In all, King completed routine maintenance, avionics, paint, and interior refurbishment on 40 BBJs, Boeing 737s, and Boeing 757s, and 45 corporate aircraft from its Oklahoma facilities. That compares with 29 Boeing and 44 corporate aircraft in 2018.

The company partly attributes word-of-mouth to the increase in Boeing jet work. “Our growth reflects a stronger economy, of course, but also a growing awareness of our many advantages—from doing the job right the first time to delivering on time and on budget,” said King Aerospace president Jarid King. “Customers have come to trust and rely on us, and they’re spreading the word to others.”

Operating from four hangars comprising 200,000 sq ft at the Ardmore Industrial Airpark (a World War II-era Army base) 117 miles north of Dallas, King also offers aircraft maintenance and logistics services for the U.S. military and government.