Cullen and Dykman proudly celebrated its 175th anniversary in 2025, an achievement that places the firm among a select few law firms in New York to reach such a distinguished milestone.

As one of New York’s oldest and most respected law firms, Cullen and Dykman’s long history of legal excellence continues to drive its innovative approach to client service. Now based in Uniondale, NY, the firm occupied for decades the historic landmark building at 177 Montague St. when its largest client was the Brooklyn Union Gas Company. For more than a century, Cullen and Dykman occupied this historic landmark building at 177 Montague St., while it served as the primary law firm for Brooklyn Union Gas Company, as well as many other entities. Brooklyn Eagle photo by Lore Croghan

A significant part

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