Concord & Sage PC is a U.S. law firm specializing in the three major areas of federal law — securities law, intellectual property law, and immigration law. Founded by attorneys licensed in both China and the United States, the firm maintains offices in Los Angeles, San Diego, Chicago, New York, and Mexico, and collaborates closely with numerous professional institutions in China.

In the field of securities law, C&S frequently serves as counsel to issuers and underwriters, providing legal services related to NASDAQ listings and responding to inquiries from the U.S. Securities and Exchange Commission (SEC). In the area of intellectual property law, C&S holds qualifications as both patent agents and trademark attorneys, handling non-litigation and litigation matters before the U.S. Patent and Trademark Office (USPTO) and federal courts. In the field of immigration law, C&S manages a full range of immigration and visa applications — including EB-series immigrant petitions as well as O, J, and H-1B visas — and represents clients before immigration courts.

Beyond federal law, C&S attorneys are licensed in multiple U.S. states and, through collaboration, are able to meet clients’ state-law needs nationwide, including corporate, employment, and contract matters. Additionally, C&S provides value-added services such as notarization and tax compliance. Leveraging its cross-border team and diverse qualifications, C&S offers “one-stop” legal solutions for businesses and individuals in both China and the United States.