The financing round has been in the works for some time, but has now been completed, according to CEO Xu Longjiang. The significant capital injection comes from US-based CID Capital and F&H Fund Management.
Founded in 2005, the Shanghai-based company had earlier been backed by smartphone maker HTC, Morningside Group and KTB Ventures.
HTC has invested $8 million in DDMap to date, contributing $5 million to a $9 million round in 2010 and later pumping another $3 million into the company.
DDMap offers Chinese urbanites an extensive mix of local services on the Web and mobile phones, including news, business listings, mobile search, couponing, travel information, place check-ins and whatnot, currently in 40 cities and counting.
The company will use the new funding to double down on its smartphone apps.