Hello again Inwardmoment, it is likely that they will be listed in the yellow pages for his or your area depending upon whether you are from the same area as him. You can also look on the internet by using Google. Type in Ironworkers, Pipefitters, Millwrights, Boilermakers, Steamfitters, Shipwrights, Sheetmetal Workers, Aerospace/Machinists, and I've possibly left out some, although not intentionally. Good luck on the hunt. Best regards, aevald