Investor Relations Contact

SEACOR Holdings Inc.
Investor Relations
2200 Eller Drive
P.O. Box 13038
Fort Lauderdale, FL 33316
+1 954 523 2200
InvestorRelations@ckor.com

Independent Registered CPA Firm

Grant Thornton LLP
1301 International Parkway
Suite 300
Fort Lauderdale, FL 33323
grantthornton.com

Transfer Agent and Registrar

American Stock Transfer & Trust Company
6201 15th Avenue
Brooklyn, NY 11219
astfinancial.com

Shareholder Services
+1 800 937 5449
+1 718 921 8124

ESPP Participants:
+1 877 248 6418