The County of Sonoma (County) is seeking proposals from qualified aviation professionals to establish a three-year term contract with two one-year extensions for services, including air service development; general airport marketing and business planning; airport operations plans; economic analysis; and other related services for the Charles M. Schulz – Sonoma County Airport. The Charles M. Schulz – Sonoma County Airport (STS) is a non-hub, regional airport owned and operated by the County of Sonoma. STS is located approximately seven miles northwest of the center of Santa Rosa, California, and 60 miles north of San Francisco. Sonoma County is in the heart of Northern California’s wine country with a breathtaking coastline, majestic redwoods, vibrant arts and cultural activities, and award-winning restaurants. It is also a popular destination for hikers, cyclists, and water sport enthusiasts.