Unity Health Plans Insurance Corp., affiliated with UW Health, and Gundersen Health Plan, affiliated with La Crosse-based Gundersen Health System, have a shared new corporate logo and brand: Quartz.
The state approved a merger of the two health insurance companies last year.
"Integrated under the Quartz brand, the organizations have greater scale to deliver a seamless service experience for customers and partners of the health insurance plans and self-funded health plans," the companies said in a statement.
Quartz manages services for the Unity and Gundersen health plans and provides administrative services for self-funded health plans, serving 275,000 customers in southern and western Wisconsin, parts of Illinois, Iowa and Minnesota.
Unity and Gundersen will continue to market products under those names.