Ammonia Systems
| CONTRACTORS | PHONE | CONTACT PERSON | |
| AIR MASTERS | 636-680-2100 | johnr@airmasters.com | JOHN RUNDQUIST |
| C E JARRELL CONTRACTING CO | 314-291-0100 | ||
| CLAY MECHANICAL INC. | 314-342-1480 | ||
| CORRIGAN CO | 314-771-6200 | ||
| GROSS MECHANICAL CONTRS | 314-645-0077 | goldr@grossmechanical.com | ROB GOLD |
| NATION WIDE REFRIGERATION | 314-291-5540 | ken@nationwiderefrigeration.com | KEN CHAILLAND |
| ROCK HILL MECH CONTR CO | 314-966-0600 | bschnitzer@rhmcorp.com | ROBERT SCHNITZER, JR |
| STATE MECHANICAL SERVICES | 314-427-8177 | rjones@statemech.com | RICH JONES |
| WALLYS REFRIGERATION | 573-348-3036 | wallys@usmo.com | WALLY WHELCHEL |