Sinkula Investments Ltd. Co. is a franchisee of Wendy's Old Fashioned Hamburgers that has been in business for over 15 years. ... Located in Northern Kentucky, it is one of the largest Wendy's franchises in the Greater Cincinnati area. Sinkula Investments vision is: To be the leader in customer service, by providing the highest quality food, order accuracy and speed of service, in clean, well maintained restaurants. read more