| HCHeartland Co-op | Conroy | IA | — | ◇ UNVERIFIED |
| HMHeartland Metal Sales, LLC | Marion | IL | — | ◇ UNVERIFIED |
| HLHeavy & Light Welding/Fabrication, Inc. | Bend | OR | — | ◇ UNVERIFIED |
| HLHeavy Line Fabrication | Anna | TX | — | ◇ UNVERIFIED |
| HMHeavy Metal Corporation | Cranston | RI | — | ◇ UNVERIFIED |
| HMHeavy Metal Fabrication | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HSHeavy Stone Rings LLC | Orem | UT | — | ◇ UNVERIFIED |
| HMHec Manufacturing, INC. | Bardstown | KY | — | ◇ UNVERIFIED |
| HSHeintz Steel and Manufacturing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| HBHeitman Brooks Ii, LLC. | Ontario | CA | — | ◇ UNVERIFIED |
| HEHeldenfels Enterprises, INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| HIHelgesen Industries INC | Hartford | WI | — | ◇ UNVERIFIED |
| HIHelser Industries of Nc | Sharpsburg | NC | — | ◇ UNVERIFIED |
| HFHenderson Fabrication | San Antonio | TX | — | ◇ UNVERIFIED |
| HWHenderson Welding, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| HAHenry and Sons Construction | New Braunfels | TX | — | ◇ UNVERIFIED |
| HVHenry Vie Svehaug & Betty Lorraine Svehaug | Milton Freewater | OR | — | ◇ UNVERIFIED |
| HSHercules Steel Company, Incorporated | Richlands | NC | — | ◇ UNVERIFIED |
| HCHeritage Custom Fabricators | Princeton | IN | — | ◇ UNVERIFIED |
| HPHeritage Personnel, LLC | Cedar Park | TX | — | ◇ UNVERIFIED |
| HBHerman Binz & Sons Iron Works | Little Rock | AR | — | ◇ UNVERIFIED |
| HSHerman Steel Inc | Slatington | PA | — | ◇ UNVERIFIED |
| HSHermitage Steel, Incorporated | Richmond | VA | — | ◇ UNVERIFIED |
| HIHerpel, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| HFHerrera Fabricating INC. | Houston | TX | — | ◇ UNVERIFIED |
| HCHerrick CORP Dba San Bernardino Steel INC | San Bernardino | CA | — | ◇ UNVERIFIED |
| HCHerschel CORP | Indianola | IA | — | ◇ UNVERIFIED |
| HHH Hirschberger CO INC | Portland | OR | — | ◇ UNVERIFIED |
| HIHigh Industries INC | Lancaster | PA | — | ◇ UNVERIFIED |
| HPHighway Products INC | White City | OR | — | ◇ UNVERIFIED |
| HSHighway Systems, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| HRHill Rebar INC | Corona | CA | — | ◇ UNVERIFIED |
| HCHillside Custom Machining & Fabrication, LLC | Denver | PA | — | ◇ UNVERIFIED |
| HSHills Stainless Steel and Equipment CO | Luverne | MN | — | ◇ UNVERIFIED |
| HVHill Valley Farm Service | Orange Cove | CA | — | ◇ UNVERIFIED |
| HPHiltz Propane Systems, INC. | Marietta | PA | — | ◇ UNVERIFIED |
| HWHinojosas Welding Service LLC | Alice | TX | — | ◇ UNVERIFIED |
| HEHirschfeld Energy Systems, LLC | San Angelo | TX | — | ◇ UNVERIFIED |
| HIHirschfeld Industries | San Angelo | TX | — | ◇ UNVERIFIED |
| HIHirschfeld Industries Group LP | Abilene | TX | — | ◇ UNVERIFIED |
| HIHirschfeld Industries LP | San Angelo | TX | — | ◇ UNVERIFIED |
 Hi-Tech Metals, Inc. | Maspeth | NY | — | ◇ UNVERIFIED |
| HCHm Clause INC. | Davis | CA | — | ◇ UNVERIFIED |
| HIHme INC | Topeka | KS | — | ◇ UNVERIFIED |
| HIHme, INC. | Laramie | WY | — | ◇ UNVERIFIED |
| HPHmss Plant - Alvin | Alvin | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Fm1463 | Katy | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Fm242 | Conroe | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Highland Shores | Highlands | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Huffman | Huffman | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Jacintoport | Houston | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Jack Road | Hockley | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Juliff | Rosharon | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Karen Switch | Magnolia | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Lake Jackson | Lake Jackson | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Moorhead | Conroe | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Old Brownsville | Corpus Christi | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Plum Grove Rd | Cleveland | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Ransom Rd | Richmond | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Sealy | Sealy | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Sleepy Hollow | Conroe | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - Victoria | Victoria | TX | — | ◇ UNVERIFIED |
| HPHmss Plant - West Road | Katy | TX | — | ◇ UNVERIFIED |
| HIHmt, INC. | Blackwell | OK | — | ◇ UNVERIFIED |
| HFHobusch Facility | Sandy | UT | — | ◇ UNVERIFIED |
| HWHofmeister Welding & Fabricating, INC. | Griggsville | IL | — | ◇ UNVERIFIED |
| HAHof's and Yates Rebar INC Dba H and Y Rebar INC | Long Beach | CA | — | ◇ UNVERIFIED |
| HFHogan Fab INC | Portland | OR | — | ◇ UNVERIFIED |
| HPHogan Products & Services LLC | Pulaski | PA | — | ◇ UNVERIFIED |
| HWHogg Wild Fabrications, LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| HMHolland Manufacturing Co., INC. | Dothan | AL | — | ◇ UNVERIFIED |
| HSHolley Steel, Inc. | Elmore | AL | — | ◇ UNVERIFIED |
| HRHolliday Rock Company - Palmdale | Palmdale | CA | — | ◇ UNVERIFIED |
| HRHolt Repair & Manufacturing INC | Holt | CA | — | ◇ UNVERIFIED |
| HMHomeland Metal Products | Bossier City | LA | — | ◇ UNVERIFIED |
| HCHonor Companies LLC | Sapulpa | OK | — | ◇ UNVERIFIED |
| HSHorseshoe Steel Erectors | Austin | TX | — | ◇ UNVERIFIED |
| HIHosetract Industries LTD | Fort Wayne | IN | — | ◇ UNVERIFIED |
| HRHotel & Restaurant Supply INC. | Savannah | TN | — | ◇ UNVERIFIED |
| HFHouston Fab Truck Rigging INC. | Houston | TX | — | ◇ UNVERIFIED |
| HSHouston Steel Drum Plant | — | TX | — | ◇ UNVERIFIED |
| HCHoward Concrete Pumping CO INC | Belleville | IL | — | ◇ UNVERIFIED |
| HSHoward Structural Steel, Inc. | Saginaw | MI | — | ◇ UNVERIFIED |
| HSHowser Steel INC | Portland | OR | — | ◇ UNVERIFIED |
| HIHpkd INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| HRH & R Industrial | Kokomo | IN | — | ◇ UNVERIFIED |
| HIHrke, INC. | Fort Worth | TX | — | ◇ UNVERIFIED |
| HIHsc Investments, INC. | Colfax | NC | — | ◇ UNVERIFIED |
| HSH & S Manufacturing Company INC | Clintonville | WI | — | ◇ UNVERIFIED |
| HMH-s Mfg INC | Stephen | MN | — | ◇ UNVERIFIED |
| HCHti Cybernetics | Sterling Heights | MI | — | ◇ UNVERIFIED |
| HIHumphrey Industrial Solutions LLC | Bolivar | MO | — | ◇ UNVERIFIED |
| HMHuot Manufacturing Company | Saint Paul | MN | — | ◇ UNVERIFIED |
| HWHupp Wilbert Vault Co, INC. | Gahanna | OH | — | ◇ UNVERIFIED |
| HSHurst Sakrete Plant | Fort Worth | TX | — | ◇ UNVERIFIED |
| HRHusky Run, LLC | Sturgeon Lake | MN | — | ◇ UNVERIFIED |
| HIHutchinson Incorporated | Grinnell | IA | — | ◇ UNVERIFIED |
| HMHydraulic Mudpumps INC. | Manitowoc | WI | — | ◇ UNVERIFIED |
| HCHydro Conduit | Thomasville | NC | — | ◇ UNVERIFIED |
| HCHydro Conduit CORP Dba Rinker Materials | Fresno | CA | — | ◇ UNVERIFIED |
