Īn early leader in the outsourced absence management space, Matrix was founded in 1987 as a workers' compensation administrator in San Jose, California. Matrix will integrate these claims management and related services to deliver an expanded portfolio of risk management products with an emphasis on superior service delivery. A former Matrix strategic partner, Partners brings claims management expertise in the general liability and auto liability markets, complementing existing Matrix workers' compensation claims services. (Partners), a third party administrator located in Seattle, Washington. PHOENIX, AZ -(Marketwired - June 28, 2017) - Matrix Absence Management (Matrix), a leader in helping employers proactively manage employee absence, productivity and related payments, has acquired Partners Claims Services, Inc.