Steadfast Marine Svc Inc Claim Listing Return to Directory Rating (average) (0) Business Genre Contractor, Utility Business Website Address steadfastmarine.com Business Address, City PO Box 219, St Helena Island ZIP Code 29920 Business Phone Number 8438385285 Business Fax 8438385638 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password? Reader Interactions Leave a Reply Cancel replyYou must be logged in to post a comment.