The Embroidery Software Protection Coalition (ESPC) was a United States embroidery industry trade group. Its primary activity was the investigation and prosecution of alleged acts of copyright infringement. The group drew media attention for its campaign of settlement demands against individual buyers as well as sellers of embroidery patterns and software. It drew further attention with a 2006 defamation suit against two individual Internet critics, in which it attempted to subpoena the identities of every subscriber of the critics' electronic mailing list.