You probably won't find one from an air-ride manufacturer, but there's huge tanks on thinks like shop compressors and stuff, so if you take something not specifically for the auto application and make it work, then sure.
Also, there was an orange truck in Minitruckin' (the one with the spider 'bag brackets) had a custom build tank outta some sort of pipe that held like 24 gallons. He had 6 Thomas compressors on that thing. It kicked ass.
largest i found was 12 gallon tanks, with 8 1/2" ports. have two of those in my impala already mounted, with 4 thomas 337 compressors. should be done in about a month or so (guy is taking his time, no rush...)