Founded by a stage-mom turned agent, Osbrink is a niche agency that deals primarily with the baby-through-teen set. UCLA-educated Cindy Osbrink opened the one-woman/one-room agency in 1993; the company has expanded considerably while maintaining a friendly, nurturing vibe. Today Osbrink is a child-star center, repping Dakota Fanning, Tyler James Williams, Alyson Stoner and Jake "Star Wars" Lloyd. There's also an in-house publicist. Most clients come via industry referrals, but this agency does accept unsolicited headshots and resumes.—Margo Fortuny