Sanborn MFG out of Minnesota makes the Black Diamond line of compressors.
Not to be confused with BlackMax, which Sanborn started, and was carried over for a few years when Coleman owned them from the late 90’s - early 2000’s. I have no idea why Coleman ever wanted to get into that industry. Fortunately, Coleman sold them on to MAT industries. MAT took it and turned things around in a big way. Currently they make more asme rated tanks for compressor air receivers and truck air brake tanks than anyone else in the states, and they hold a large share of the 60-80 gallon compressor market. They have a few well established models, and sell them under dozens of privet label names. Which, is all very funny, because you almost never hear of the name Sanborn despite them being a dominant force in the air power industry.