McDermott Costa Acquires A.B. Stevenson in California November 8, 2019 McDermott Costa Insurance has acquired A.B. Stevenson Insurance Brokerage based in San Leandro, Calif. Terms of the deal weren’t disclosed....
Three Northern California Insurance Firms Merge April 19, 2016 McDermott Costa Insurance, Mello Insurance Services and MyersâStevens Mello & Co. have merged. The firms will conduct business out of...