Durham, NC-based The Republik has added four new accounts, including Spiffy, Alliance Architecture, First Flight Venture Center and 21c Museum Hotels. Spiffy is a mobile car washing and detailing service that allows customers to book services through its website and mobile app. Alliance Architecture is an international architecture firm. First Flight Venture Center (FFVC) is a technology incubator located in Research Triangle Park. 21c Museum Hotels operates hotels in Louisville, Cincinnati and Bentonville, Ark.