Liberty Mutual Surety. Local connections, global reach.

Since 1893, Nationale Borg has been the bond supplier of the best businesses in the Netherlands and Belgium. Trusted clients that could expand their marktets because our guarantees helped them to do their business fast and efficiently. After all, there is a reason why we are the largest bond supplier in the Netherlands and Belgium.

Nationale Borg is now Liberty Mutual Surety.

Since October 2019, Nationale Borg is part of Liberty Mutual Surety, a unit within Liberty Mutual Insurance. Liberty Mutual Surety is the largest surety in the world and one of the largest in the United States. With underwriting offices in 18 countries and bonds issued throughout the world, Liberty Mutual Surety has the ability, experience and resources to underwrite all types of contractors and corporations for local, regional, national and multinational customers. We are proud to be part of such a reputable organization and we want our name to show it. After 128 years, it may take some getting used to, but apart from the name everything remains the same: our people, our service, the human scale.

In business since 1912, and headquarterred in Boston, Massachusetts, Liberty Mutual is the sixth largest global property and casualty insurer based on 2019 gross written premium and ranks 84th on the Fortune 100 list of largest corporations in the United States based on 2019 revenue. As of December 31, 2019, Liberty Mutual had $ 43.2 billion in annual consolidated revenue. Learn more..