I would check with Waypoints (previously CYOA). Great company and nice boats and just a 7 minute ride from the St. Thomas airport to base. We have only bareboated with them, but I expect they could do a fully crewed charter. Optionally &Beyond focuses on crewed charters. I have not chartered with them, but like what I have heard initially. Now that chartered boats can freely go back an forth between USVI and BVI, I think it is a fun option to mix it up.