Known as fixed-base operators, the two companies’ revitalization work is expected to bring benefits valued at more than $130 million to the airport over the course of the leases, according to county officials. Following the board’s approval, the next step for Atlantic Aviation and Skyservice is to sign contract agreements with the county and hire contractors, said Airport Manager Mark Witsoe, who joined the airport in August. There are 10 county employees at the Napa County Airport.