Brett E. Gilleo
Founder & Owner, LCPC, LMFT, BCBA
Founded the agency in 2006; holds counseling psychology (1997) and two master's degrees (counseling, 2000; special education, 2012); BCBA since 2014.
LinkedInFounders
Executive Team
Nicole
Board Certified Behavior Analyst
Former special education teacher; RBT since 2019, BCBA since 2020.
Tess
Board Certified Behavior Analyst
8 years of ABA experience in Seattle and 2 years in Livingston, MT prior to joining Big Sky Therapeutic Services.