CKH

Seacor Holdings Inc.

A diversified holding company built around the sea, SEACOR operates marine transportation and logistics services, running fleets of supply vessels that serve the offshore oil and gas industry in the Gulf of Mexico, along with emergency and crisis management through its Witt O'Brien's subsidiary. It was founded in 1989 when Charles Fabrikant bought NICOR Marine, the marine arm of an Illinois utility, and its name blends "sea" with the NICOR legacy. After spending years as a public company, it was taken private by American Industrial Partners in 2021.