The Surety Information Office (SIO) is the information source on contract surety bonds. SIO was formed in 1993.
SIO mission states, "Enable NASBP and SFAA members and Local Surety Associations (LSA) to promote contract surety bonds through the use of readily available products and services."
SIO is supported by the National Association of Surety Bond Producers (NASBP) and The Surety & Fidelity Association of America (SFAA).