Nonprofits Insurance Alliance was the first nonprofit insurance risk pool to provide coverages only to the 501(c)(3) sector, which meant that, to justify its vision for the nonprofit sector, NIA had to prove itself a strong financial institution. Year after year, it has, culminating in the highest AM Best credit rating, “a+.”
https://www.marketwatch.com/press-release/am-best-upgrades-issuer-credit-ratings-of-nonprofits-insurance-alliance-groups-insurance-entities-2018-12-05