| HTHarsco Track Technologies | Fairmont | MN | — | ◇ UNVERIFIED |
| HAHartchrom at the Watervliet Arsenal | Watervliet | NY | — | ◇ UNVERIFIED |
| HCHart Chrome & Restoration | Carrollton | GA | — | ◇ UNVERIFIED |
| HSHartford Standard CORP | Hartford | KY | — | ◇ UNVERIFIED |
| HWHasse & Wrede North America | North Aurora | IL | — | ◇ UNVERIFIED |
| HPHawaii Plating | Honolulu | HI | — | ◇ UNVERIFIED |
| HMHawkins Machine Shop INC | Troy | OH | — | ◇ UNVERIFIED |
| HEHbm Electrochemical CO | Lansing | IL | — | ◇ UNVERIFIED |
| HRHcma Rhq | Newnan | GA | — | ◇ UNVERIFIED |
| HMHead Manufacturing INC | South Elgin | IL | — | ◇ UNVERIFIED |
| HAHealy Awards INC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| HPHearn Plating CO INC | Toledo | OH | — | ◇ UNVERIFIED |
| HOHeart of Dixie Machine & Fab | Talladega | AL | — | ◇ UNVERIFIED |
| HLHeggem Lundquist | Denver | CO | — | ◇ UNVERIFIED |
| HUHeiche US Surface Technology INC | Spartanburg | SC | — | ◇ UNVERIFIED |
| HIHelgesen Industries INC | Hartford | WI | — | ◇ UNVERIFIED |
 Hendrick Manufacturing CO | Carbondale | PA | — | ◇ UNVERIFIED |
| HPHenefelt Precision Products, INC | Largo | FL | — | ◇ UNVERIFIED |
| HMHercules Machinery Corporation | Fort Wayne | IN | — | ◇ UNVERIFIED |
| HPHercules Polishing and Plating LLC | Canton | OH | — | ◇ UNVERIFIED |
| HTHercules Tool & Die LLC | Warren | MI | — | ◇ UNVERIFIED |
| HCHerr-voss Corporation-office Basement | Callery | PA | — | ◇ UNVERIFIED |
| HVHerr Voss Stamco Rci | New Ross | IN | — | ◇ UNVERIFIED |
| HCHertz Corporation | San Francisco | CA | — | ◇ UNVERIFIED |
| HHH H Howard CORP | Chicago | IL | — | ◇ UNVERIFIED |
| HPHialeah Plating Shop INC | Hialeah | FL | — | ◇ UNVERIFIED |
| HMHighland Machine and Screw Product CO | Highland | IL | — | ◇ UNVERIFIED |
| HPHighland Precision Plating INC | Hillsboro | OH | — | ◇ UNVERIFIED |
| HTHighland Threads | Houston | TX | — | ◇ UNVERIFIED |
| HPHigh Purity Technology | Poughkeepsie | NY | — | ◇ UNVERIFIED |
| HTHigh Tech Finishing | Houston | TX | — | ◇ UNVERIFIED |
| HCHill Cross Co., INC. | West New York | NJ | — | ◇ UNVERIFIED |
| HPHill Plating Incorporated | Springfield | MO | — | ◇ UNVERIFIED |
| HHHired Hand Green | Bremen | AL | — | ◇ UNVERIFIED |
| HFHirsh Finishes, Dba Best Finishes, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HIH I S Painting INC | Titusville | FL | — | ◇ UNVERIFIED |
| HMHitachi Magnetics CORP | Edmore | MI | — | ◇ UNVERIFIED |
| HMHitech Metal Fabrication | Anaheim | CA | — | ◇ UNVERIFIED |
| HMHi-tech Metals | Denton | TX | — | ◇ UNVERIFIED |
| HPHi-tech Plating | Erie | PA | — | ◇ UNVERIFIED |
| HTHi Tecmetal, INC. Bmt (1318007817) | Cleveland | OH | — | ◇ UNVERIFIED |
| HTHi - Tec Plating INC | Statesville | NC | — | ◇ UNVERIFIED |
| HFHl Fisher Mfg CO INC | Des Plaines | IL | — | ◇ UNVERIFIED |
| HLH Loeb Corporation | New Bedford | MA | — | ◇ UNVERIFIED |
| HLH & L Tool-madison Hgts | Madison Heights | MI | — | ◇ UNVERIFIED |
| HDHm Dunn | Euless | TX | — | ◇ UNVERIFIED |
| HGHme Global LLC - Fusionone | New Iberia | LA | — | ◇ UNVERIFIED |
| HQHm Quackenbush INC | Herkimer | NY | — | ◇ UNVERIFIED |
| HLHn Lucas & Son | Delran Twp | NJ | — | ◇ UNVERIFIED |
 Hobart Brothers CO Iv | Troy | OH | — | ◇ UNVERIFIED |
| HPHobart Plant #56 | Richmond Hill | GA | — | ◇ UNVERIFIED |
| HNHoffman New Yorker/dushore Facility | Dushore | PA | — | ◇ UNVERIFIED |
| HIHolcim (us) INC | Des Moines | IA | — | ◇ UNVERIFIED |
| HNHolland Nameplate | North Kansas City | MO | — | ◇ UNVERIFIED |
| HMHol Mac Corporation, South | Bay Springs | MS | — | ◇ UNVERIFIED |
| HCHomelite Consumer Products INC. | Anderson | SC | — | ◇ UNVERIFIED |
| HAHomer A. Doerr & Sons Plating Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| HHHoosier Horse Trailers, LLC | Syracuse | IN | — | ◇ UNVERIFIED |
| HSHoosier Stamping | Evansville | IN | — | ◇ UNVERIFIED |
| HGHopwood Globe LTD | Malden | MA | — | ◇ UNVERIFIED |
| HPHouston Plant | Houston | TX | — | ◇ UNVERIFIED |
| HPHouston Plating & Bumper | Houston | TX | — | ◇ UNVERIFIED |
| HRH & R Plating Co-h & R Plating CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| HEH&s Enterprises INC | Monrovia | CA | — | ◇ UNVERIFIED |
| HSH & S Machine Shop | Hurricane | UT | — | ◇ UNVERIFIED |
| HMHughes Missile Systems CO | Pomona | CA | — | ◇ UNVERIFIED |
| HMHughes Missile Systems CO. Navajo Facility | Fort Defiance | AZ | — | ◇ UNVERIFIED |
| HPHughes Parker Industries, INC. | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| HPHuhtamaki Plastics Phoenix | Phoenix | AZ | — | ◇ UNVERIFIED |
| HLHull Lift Truck INC | Elkhart | IN | — | ◇ UNVERIFIED |
| HYHunt Yachts | Bristol | RI | — | ◇ UNVERIFIED |
| HMHuskin Machinery Company | Maryville | TN | — | ◇ UNVERIFIED |
| HEHuss Equipment CORP. | Bowling Green | OH | — | ◇ UNVERIFIED |
| HIHydramec Incorporated | Scio | NY | — | ◇ UNVERIFIED |
| HMHypar Machine Company, Richwood | Richwood | WV | — | ◇ UNVERIFIED |
| HCHyundai Construction Equipment USA | Norcross | GA | — | ◇ UNVERIFIED |
| IAI & a Inc., Dba Peninsula Metal Fabrication | San Jose | CA | — | ◇ UNVERIFIED |
| IMIce Manufacturing INC | Oelwein | IA | — | ◇ UNVERIFIED |
| IPIdeal Plating and Polishing INC | Providence | RI | — | ◇ UNVERIFIED |
| IPIdeal Plating & Polishing @ Belleville Ind Ct | Belleville | NJ | — | ◇ UNVERIFIED |
| IMId Machine Incorporated | Malden | MA | — | ◇ UNVERIFIED |
| ITIllinois Tool Works | Elgin | IL | — | ◇ UNVERIFIED |
| IIIlpea Industries Inc/kane | Kane | PA | — | ◇ UNVERIFIED |
| IGImperial Group-decatur | Decatur | TX | — | ◇ UNVERIFIED |
| IIImperial Industrial Finishing Services | Kingston | IL | — | ◇ UNVERIFIED |
 Imperial Machine & Tool CO LLC | Wadsworth | OH | — | ◇ UNVERIFIED |
| IPImperial Plating CO | Springfield | IL | — | ◇ UNVERIFIED |
| IPImperial Plating INC | Fullerton | CA | — | ◇ UNVERIFIED |
| IPImpressions Polishing and Plating | Orange | CA | — | ◇ UNVERIFIED |
| IPIndependent Plating CO. INC. | Worcester | MA | — | ◇ UNVERIFIED |
| IIIndevcon INC | Elgin | IL | — | ◇ UNVERIFIED |
| IAIndustrial Anodizing INC. | Hyrum | UT | — | ◇ UNVERIFIED |
| IBIndustrial Brush CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plate | San Antonio | TX | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plating | Conyers | GA | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plating INC | Portland | OR | — | ◇ UNVERIFIED |
| ICIndustrial Chromium | Holyoke | MA | — | ◇ UNVERIFIED |
| ICIndustrial Container Services CO LLC | Brighton | CO | — | ◇ UNVERIFIED |
| IFIndustrial Fabricating | East Syracuse | NY | — | ◇ UNVERIFIED |
| IHIndustrial Hard Chromium CO INC | Newark | NJ | — | ◇ UNVERIFIED |
