I’d list the union, but ask recruiters how to do a good resume targeted to the audience that you seek. They are the experts.
For example:
My contact at Core has left recruiting.
https://www.oceanwideamerica.com/
My contact at Atlas and Oceanwide (Marylou) is now at Noble Drilling.
My contact at Faststream is now a financial recruiter.
I think HR is changing fast. A lot of it is outsourced or work from home. Resumes have been read by computer looking for the right buzzwords for sometime. Soon it will mostly be AI. It’s critical that the resume be written to please the computer.
I get the impression that HR at many companies has high turnover and is dysfunctional.
Yesterday’s good advice may be worthless tomorrow.
People send me dozens of resumes a year. I sometimes review resumes at the office. I have no HR training. I take a practical approach and focus on personal contacts: who do I know at the companies this guy has worked for that will talk to me off the record, or what is the reputation of that company or boat. Sometimes, I know the captains and have their cell numbers.
I see some resumes that list the union as the employer with the specific vessel and employer listed as “vessel assignments” or some such. Other resumes list companies and vessels.
HR people are trained to focus on length of employment, starting and ending salary, and to “mind the gaps” (gaps in employment).
Most mariners are basically gig workers that hop from job to job, and have a lot of gaps in employment. Computer algorithms reject that instantly. HR people hate it. Mariners do not fit the standard HR model.
Of course, this just makes it more difficult, but not impossible.
I’ll also mention that Edward Jones, the stockbroker, is actively recruiting engineers to be trained as financial advisors.