SLI Compliance is an American voting system test laboratory. They were accredited by the US Election Assistance Commission (EAC) in 2007. [1] As of 2021, SLI, along with Pro V&V, are one of only two organizations that the EAC has authorized to certify voting systems in the United States. [2] Certification from the EAC had expired in January 2021, but the EAC said that they were in good standing, with their re-accreditation delayed due to the COVID-19 pandemic and "resource challenges". [2] SLI was re-certified the next month. [1]
SLI was founded in 1997 in Wheat Ridge, Colorado, and are a division of Gaming Laboratories (GLI), a New Jersey-based company founded in 1989 that tests and validates gambling equipment. [3] In July 2025, it was announced that CVC Capital Partners was preparing to acquire GLI. [4]