White Mountains Partners Invests $97M in BaseSix

White Mountains Insurance Group Partners announced an approximately $97 million equity investment as its Partners unit acquired a majority interest in BaseSix Systems LLC. The deal positions BaseSix to pursue growth opportunities including new offices and strategic acquisitions.

BaseSix provides design, installation, retrofit, and maintenance of mission-critical low-voltage building systems. White Mountains Partners completed the acquisition of a majority interest in BaseSix Systems LLC, with its equity investment described as roughly $97 million.