GoMedigap now offers StoneBridge Life Medicare supplement plans. StoneBridge Life is another subsidiary health insurance company that offers Medicare supplement insurance. StoneBridge Life is actually part of AEGON N.V. which is an international health insurance company based in the Netherlands. However, StoneBridge only sells insurance to families in America. They offer Medicare supplement insurance to anyone that is at least 65 years old and currently or pending enrollment in basic Medicare Part A and B. Stonebridge is known for quality products and reliable service.