comScore, Inc. (OTCPK:SCOR) is working with financial advisers to explore options including a potential sale, according to people familiar with the matter. comScore is working with Goldman Sachs Group Inc. to reach out to potential suitors including buyout firms, said the people, who asked not to be identified because the matter is private. No formal sale process has started and ComScore may choose not to proceed with any changes, the people said.