About Sum

Sum Service is a US-based company founded by Joe Sum, specializing in International Sourcing of Manufacturing, Engineering, and Project Management. With headquarters in Cincinnati, Ohio, and remote offices in China, Sum is uniquely positioned to be your link to success in the International Market.

Sum is not an international broker or middleman, but rather a broad-based Service Company offering critical Value-Added Services that will increase your competitiveness. Whether you are looking to market your products in China or want to incorporate cost effective parts and components into products for sale in the US, Sum can help.

Through our offices in China, Sum can match your production requirements to the capabilities of one or more Chinese Manufacturing and Engineering partners. If you want to establish a presence in China, this is the right place to get started! Knowing the right people is the key. Sum can take you to China to visit the plants that will manufacture your products, allowing you to view their processes first hand.

Sum offers services in Manufacturing Sourcing, Project Management, Engineering, CAD Drafting and Design, International Coordination, Documentation, Translation, and much more.  Every project represents a unique opportunity to increase your competitiveness.