Christian in nature
Samaritan
Medishare
Christian Healthcare ministiries.
http://www.chministries.org/faqs.aspx
The legalities are in question. One article I read said that 16 states allow health-cost-sharing cooperatives to exist apart from insurance regulation. In the other states the cooperatives may be subject to the same requirements as all the other health insurance companies under Obamacare if the state defines them as “insurance companies”.
Here are a couple of the articles I read on the subject: