Does a marriage visa in Thailand allow a foreigner to work or own a business with a Thai spouse?

The marriage visa in Thailand does not directly allow a foreigner to work or own a business; however, it facilitates the ability to apply for a work permit. A foreigner can live in Thailand on a marriage visa, and if they secure a job offer, the employer can sponsor their work permit application. Therefore, while a marriage visa provides residency, a work permit is necessary for legal employment.