| GGerdau | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel US INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel US INC. | Jackson | TN | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel Us, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel Us, INC. | Duluth | GA | — | ◇ UNVERIFIED |
| GBGerdau Bright Bar | Cartersville | GA | — | ◇ UNVERIFIED |
| GSGhent Steel Industries LLC | Warsaw | KY | — | ◇ UNVERIFIED |
| GSGkn Sinter Metals - Emporium Boro Plant 2 | Emporium | PA | — | ◇ UNVERIFIED |
| GMGlobe Metallurgical INC | Niagara Falls | NY | — | ◇ UNVERIFIED |
| GCGo Carlson | Peachtree City | GA | — | ◇ UNVERIFIED |
| GPGoc Property Hodings Redevelopment Pennzoil Refinery | Rouseville | PA | — | ◇ UNVERIFIED |
| GSGold Star Holdings LLC | Byers | CO | — | ◇ UNVERIFIED |
 Gopher Resource | Tampa | FL | — | ◇ UNVERIFIED |
| GCGrand Concourse - Historic District 675 Walton Ave INC | Bronx | NY | — | ◇ UNVERIFIED |
| GFGranite Falls Furnace, LLC | Sawmills | NC | — | ◇ UNVERIFIED |
| GMGraves Metal Products, INC. | Jackson | TN | — | ◇ UNVERIFIED |
| GCGreen Cold Formed Steel LLC | Edinburg | TX | — | ◇ UNVERIFIED |
| GMGrenada Manufacturing LLC | Grenada | MS | — | ◇ UNVERIFIED |
| GCGulf Coast Steel, INC | Houston | TX | — | ◇ UNVERIFIED |
| HLHaley-northington, Laschon | Lees Summit | MO | — | ◇ UNVERIFIED |
| HMHalstead Management Company LLC | New York | NY | — | ◇ UNVERIFIED |
| HIHamrock INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| HVHarbor View CO | Oakland | CA | — | ◇ UNVERIFIED |
| HRHarris Rebar Nufab LLC - Ambassador Steel CORP | Slidell | LA | — | ◇ UNVERIFIED |
| HMHarsco Metals Bri Llc/braddock | Braddock | PA | — | ◇ UNVERIFIED |
| HBHarvey Brothers, INC. | Cincinnati | OH | — | ◇ UNVERIFIED |
| HSHeat Shield INC. | Gladewater | TX | — | ◇ UNVERIFIED |
| HSHeidtman Steel | Erie | MI | — | ◇ UNVERIFIED |
| HSHeidtman Steel Products | Erie | MI | — | ◇ UNVERIFIED |
 High Tek Tube CORP | Denver | CO | — | ◇ UNVERIFIED |
| HMHitchiner Mfg CO INC | Littleton | NH | — | ◇ UNVERIFIED |
| HCHoeganaes Corporation-riverton | Cinnaminson | NJ | — | ◇ UNVERIFIED |
| HGHolmes Group Incorporated Rival Manufacturing Division | Sedalia | MO | — | ◇ UNVERIFIED |
| HSHornsby Steel, INC. | Cleveland | AL | — | ◇ UNVERIFIED |
| HSHsk Stainless, LLC | Gallatin | TN | — | ◇ UNVERIFIED |
| HWH. Wayne Lewis INC Dba Amber Steel CO. | Rialto | CA | — | ◇ UNVERIFIED |
| HLHybar LLC | Osceola | AR | — | ◇ UNVERIFIED |
| IKIce Krackers, INC. | Springfield | IL | — | ◇ UNVERIFIED |
| ISIdaho Steel Products, INC. | Caldwell | ID | — | ◇ UNVERIFIED |
| ISIdeal Stainless, INC | Springfield | MO | — | ◇ UNVERIFIED |
| IFIllinois Fabricators INC | Bradley | IL | — | ◇ UNVERIFIED |
| ITIllinois Tool Works INC. | Pocahontas | AR | — | ◇ UNVERIFIED |
| IWIllinois Weld & Machine, INC. | Hanna City | IL | — | ◇ UNVERIFIED |
| ISImt Steel, LLC. | Bayonne | NJ | — | ◇ UNVERIFIED |
| IMIndustrial Metals & Mineral Company | Saxonburg | PA | — | ◇ UNVERIFIED |
| ISIn Stainless Steel Specialist | Hampden | ME | — | ◇ UNVERIFIED |
| IIInsteel Industries, INC. | Dayton | TX | — | ◇ UNVERIFIED |
| IWInsteel Wire Prods | Gallatin | TN | — | ◇ UNVERIFIED |
| IWInsteel Wire Products | Fredericksburg | VA | — | ◇ UNVERIFIED |
| IWInsteel Wire Products | Wilmington | DE | — | ◇ UNVERIFIED |
