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Gillingham and Associates Inc is a Westminster, CO-based company in the Financial Services sector.
Oakbrook Companies is a Saint Charles, IL-based company in the Financial Services sector.
ISMIE Mutual Insurance Company is a Chicago, IL-based company in the Financial Services sector.
C Lee Williams is a San Diego, CA-based company in the Financial Services sector.
White Mountains (NYSE: WTM) is a diversified insurance and related financial services holding company that owns and manages businesses seeking a stable, sophisticated partner to drive value creation. Grounded in the core principles of our visionary founder Jack Byrne, we have been careful, opportunistic and successful stewards of our shareholders` capital for more than three decades. We are most proud and protective of our reputation as a good partner – to our shareholders, to other stakeholders in our businesses and to the talented management teams who run them. In the end, doing right by your partners is what guarantees the next deal and the deal after that. We are domiciled in Hamilton Bermuda, with executive headquarters in Hanover, New Hampshire, and offices in Boston, and Guilford, Connecticut.