GTE Agency | 244 followers on LinkedIn. Your one stop shop for all your Experiential, Out-of-Home and Event Staffing needs. | GTE Agency is a Los Angeles based agency owned by twin sisters Amy & Becky Glass (The Glass Twins). For the last 18 years where we’ve been providing top line event staffing, experiential marketing and Out-of-Home services. We are a unique experiential marketing support agency with by far the best in-house staffing capabilities in the country, and with easily the most access and expertise in executing campaigns for Nationwide Tours, Multi Market Promos, Airport Programs, In-store Demos, Street Teams, Event Management, Press Events/Screenings, etc. and we step into any phrase of the experiential marketing process without stepping on toes.