Largest Studios in LA: Vivo in Hacienda Heights (kind of closed but many quarter and semi finalist level competitors there, and the Suvurovs often coach there Regency in Lomita (Glenn Weiss and Victor Veyrasset among others teach here) Westmor in Koreatown (so much talent has passed through these doors since the 70s. Older now but still great place and Koreatown is getting a little better now) Star in Monterrey Park (Chinese) Other LA studios: Best in Hacienda Heights (Chinese) Nadia's Rhythm Room in Sherman Oaks (Nadia Eftedal, Charlotta Jorgensen) Lai Lai in Alhambra (Chinese) Sloan in Glendale (Ken Sloan) By Your Side in Culver City LA Dance Experience in Westwood You Can Dance in Hermosa Beach (Jonathan Roberts) Celebration Ballroom in Woodland Hills Pasadena Dance Association - Erin and Tami Stevens, mostly Lindy but ballroom too Premier Ballroom in San Dimas OC Studios: Club One (owned by the Fung family, ex. Victor and Tiffany there) Avant Garde (small but lots of people come through like Julia and Ricardo, Donnie Burns, Maria Hansen) Atomic (known for its Lindy Hoppers but also has ballroom) Londance in Aliso Viejo Sway also Laguna Hills Southcoast (Heather Smith sometimes coaches there) Fullerton Dance Sport in Fullerton (Stuart Cole, one of the biggest in OC but this is North OC so almost LA) Danscene in Costa Mesa No way I completely covered everything. Feel free to add on. I don't know the Valley or even West LA that well, nor what is out toward San Bernadino. People tend to stay in a region of LA because the city is huge. The main reason people tend to stay at a particular area is travel time. It can take over an hour to travel 30 miles and LA/OC is a huge area. That said, I know some teachers that will have 2-3 different areas that are 45 minutes or more apart, but consistently work the same days each week. That includes top coaches. OC right now is characterized by MANY small studios. As a result you see a few instructors in each that tend to mostly stay in one place. Generally, there really aren't any big studios or social events where independent instructors and students can meet, and as a result you mostly see already established instructors working in these places. There are some closed type studios where there are newer instructors but where in some way they have a little tighter grip on their instructors. There used to be some bigger studios but in the last few years a particular big studio had many of the instructors go out on their own and start other smaller studios. LA is a little more free and independent feeling and you see more instructors moving around within the city. Traffic in LA is worse than OC so that adds more complexity. You'll see one group that is more West of the city and one more East, and then there is the valley up North. However, lots happens in the middle (ex. Westmor in Korea Town). One thing I also found is tools like Google maps or even available website just don't provide an adequate picture of what is out there. You have to go out and discover for yourself. For example, there are a number of studios that don't have websites, or studio websites that are in another language, but have plenty of English speaking clientele. Some studios are very nice but in less desirable part of town. Some are very small but in a nicer part of town.