The National Register of Warranted Builders (NRWB) is a wholly owned subsidiary of the Federation of Master Builders.
The warranty is underwritten by Zurich Building Guarantees Insurance.
Zurich Building Guarantees Insurance is part of Zurich Financial Services Group with a global network of subsidiaries and offices in North America, Europe, Asia Pacific, Latin America and other markets. Founded in 1872 the group is headquartered in Zurich, Switzerland. It employs approximately 58,000 people serving customers in more than 170 countries.