| JSJm Steel, Pa | Leetsdale | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMain | Birmingham | AL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MPMain Plant | Clifton | NJ | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMaryville | Maryville | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MLMetal-Matic, LLC Middletown Plant | Middletown | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMModern Manufacturing International | Wausau | WI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| NZNiles Zekelman Industries | Niles | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PTPlymouth Tube Company - Warrenville | Warrenville | IL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PCPowerbrace Corporation | Kenosha | WI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PDPremier Drill Products LLC. | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PSPresby Steel, LLC | Berlin | NH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PTPTC Tubular Products LLC Richmond Plant | Richmond | IN | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| STSoutheast Tubular Products, Inc. | Statesville | NC | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SNSouthern New Jersey Steel Co. Inc. | Vineland | NJ | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SKSwagelok Koppel | Koppel | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SMSynergy Manufacturing Inc. | San Luis Obispo | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| TFTaylor Forge Engineered Systems Greeley | Greeley | KS | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| TTTexas Tubulars Products | Lonestar | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| TTTexas Tubulars Products | Lone Star | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| THTrienda Holdings LLC | Arlington | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VSValiant Steel & Equipment Inc | Gadsden | AL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WVWebco VAF | Reno | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WCWest Coast Spiral Pipe | Rialto | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WTWheatland Tube Blytheville | Blytheville | AR | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WWildomar | Wildomar | CA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |