Non-Immigrant O Visa or as most retirees called "Retirement Visa'"
Thailand retirement visa is the popular term for "Extension of Stay Based on Retirement”. It is an extension of a Non-Immigrant O Visa or Non-Immigrant OA Visa.
"I contacted them when I realized I needed to get a 60 day visa in my own country, USA, before arriving in Thailand. They quickly responded to every email... I was very pleased with their service"