SIHO Insurance Services was founded in 1987 by local employers, hospitals and physicians to provide a solution to rising health care costs for local businesses. SIHO is now a dominant employee health care benefits company, providing health plans to any size business. As a comprehensive health care organization, SIHO Insurance Services provides any type of health plan a business may desire. On the leading edge of employee health benefits, SIHO provides claims administration, pre-certification, case management, concurrent review, utilization review, member services, benefit consulting, a national pharmacy network and a comprehensive network of hospitals and physicians in one facility.