I found (& copy edited) this listing on lostapet.org as the only person they list locally who has their certification:

Hillbilly Hound Hunter, Teresa Bressoud: (707) 928-4442,
www.hillbillyhoundhunter.com, email [email protected].
We will take lost dog cases in these areas: Napa, Sonoma, Lake, Mendocino, and Colusa Counties.
We specialize in searching only for large breed dogs and large animals.