Cullen/frost Bankers, Inc.
A Texas-focused bank holding company, Cullen/Frost operates Frost Bank's roughly two hundred financial centers across the state, offering commercial and consumer banking, treasury management, and wealth services through Frost Wealth Advisors to customers in energy, healthcare, and manufacturing. It traces back to 1868, when Thomas Claiborne Frost started a frontier mercantile store in San Antonio that evolved into a bank; the holding company formed in 1977 by merging Frost's organization with Cullen Bankers. Fun fact: Frost first lent to local wool producers using their stored wool as collateral.