If you have a commercial property, large barn, or just an area where you want to put a large sign that is constructed out of metal, you may have to do some research before you determine where you can find someone to do the sign for you. You want to find professionals that specialize in working with metal. You first have to get a rough design of the sign, so that the metal professionals can tell you if it will work or not. You want to talk with these experts.
Steel Fabrication Specialists
One way to get the project completed is to have a steel fabrication company look at the sign you want to create, and then they will weld together the pieces. They will create the shape and image that you want with the metal that you choose, and then they will mold and weld together so it's all one piece when it's completed. You will have to find a detailing fabrication professional or company, like Cincinnati Ventilating Company Inc, to do this.
Laser Cutting Company
A company that cuts metal with a laser can create the custom sign that you want, and this may be a great option if you have a lot of details you want cut into the sign. You will need to get a high resolution file, or have someone create a layout for the laser cutting company, and then they will try to create the sign that you want by cutting it out of a sheet. If you want the sign a certain shape or you want something done to the edges, you may have to find a welder or fabricator to finish the job.
If you aren't getting a clear enough image for the laser cutting company or the fabrication specialists, they may want you to get in touch with a graphic designer, so they can plot out the sign as it needs to be for them to complete the job. The designer can take the sign image you have in your head and make it a reality.
There are a lot of metal professionals that do custom signs and stands if you want the sign to be erect. Decide if you want to hang the sign from a beam or another object, or if you will also need sign legs fabricated on the piece. The weight of the sign will determine how it can stand or hang.