| Business | Phone |
| Western Machining 2801 Piper Ave, Watertown 57201 | (605) 886-8927 |
| Dynamic Engineering 221 Cessna St, Watertown 57201 | (605) 886-5545 |
| Glacial Lakes Precision 3003 9th Ave Sw # A, Watertown 57201 | (605) 882-8871 |
| Global Technologies 700 Pheasant Rdg, Watertown 57201 | (605) 886-8521 |
| Harkin Machine Shop 903 43rd St Ne, Watertown 57201 | (605) 886-7880 |
| Integrity Tool & Die Inc 2825 15th Ave Se, Watertown 57201 | (605) 886-8881 |
| Jms Precision Inc 424 19th St Sw, Watertown 57201 | (605) 886-6430 |