One Family.
Three Specialties.
Metro Welding Supply has built a reputation on doing one thing exceptionally well: getting the right gas to the right customer, on time, every time. As that mission grew, so did we, by branching into specialty laboratory gases, beverage carbonation systems, and dedicated liquid nitrogen service. Today, three focused brands operate under the Metro umbrella engineered for a specific industry, all backed by the same family-owned commitment that started in Detroit in 1937.
Specialized Solutions, Unified Standards
Cryogenic Gases
The specialty gas laboratory.
The PurityPlus® certified lab produces ultra-high-purity gases and custom certified blends for analytical, calibration, and research applications. Our lab means days, not weeks, on custom mixture deliveries.
Explore Cryogenic Gases →
Metro Carbonic
Beverage gases, done right.
Soda, draught beer, brewing, wine, and coffee systems for local bars, restaurants, and breweries. CO₂, nitrogen, dry ice, and the installation expertise to keep every pour perfect.
Explore Metro Carbonic →
LN₂ Gas & Supply
Liquid nitrogen and medical-grade gases.
Southeast Michigan’s dedicated source for liquid nitrogen, dry ice, CO₂, medical-grade oxygen and nitrous, and custom medical gas mixes. Built on the same lab and logistics backbone as Metro Welding.
Explore LN₂ Gas & Supply →Not sure which brand fits your needs?
Talk to a Metro specialist — we’ll point you to the right team, set up an account, and get your first delivery scheduled.