CASTO is the biggest rival of GBT Realty. CASTO was founded in 1926, and its headquarters is in Columbus, Ohio. CASTO operates in the Real Estate Services industry. CASTO has 165 more employees than GBT Realty.
Friendly Care has been one of GBT Realty's top competitors. Friendly Care is a Private company that was founded in Reynoldsburg, Ohio in 2011. Friendly Care competes in the Health Care Services industry. Friendly Care has 376 more employees vs. GBT Realty.