Hub International, a global insurance brokerage, agreed to acquire SilverStone Group, one of the largest insurance brokerages in the US and the largest brokerage in Nebraska. Financial terms were not disclosed. "Hub remains bullish on the growth we are experiencing, and it's opening new M&A opportunities for us with various product, distribution and geographic channels. The differentiating value we can deliver to the staff of our new partners has helped us to attract larger firms such as SilverStone," Marc Cohen, Hub President and Chief Executive Officer.