| HRH R Simon Company INC | Baltimore | MD | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| HGHugo Gonzalez Guzman and Rosolda Ortiz | Glen Burnie | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| IBIdiom Brewing Company LLC | Frederick | MD | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| IBIdiom Brewing Company LLC | Frederick | MD | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| IIIdx-baltimore, INC. | Columbia | MD | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| ICIlex Construction, INC. T/a Ilex Woodworking | Easton | MD | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| IIIllumina, INC | Baltimore | MD | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| IDImperial Dade | Jessup | MD | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| IPIn Print Unlimited LLC | Baltimore | MD | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| ILInterbiome, LLC | Rockville | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| ITIn The Mix Decorative Concrete LLC | Charlotte Hall | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IFIron Fabrication Services, INC. | Jessup | MD | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| IWIron Works, INC. | Denton | MD | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ITIr Tools | Crofton | MD | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| IFItw Food Equipment Group LLC | Dundalk | MD | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| JTJaak Tech LLC | Oxon Hill | MD | Computer and Electronic Product Manufacturing334118 | — | ◇ UNVERIFIED |
| JCJalex Communications LLC | Largo | MD | Electrical Equipment, Appliance & Component Manufacturing335921 | — | ◇ UNVERIFIED |
| JSJC Signs, Inc. | Glen Burnie | MD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| JIJ&d Industrial Services INC | Pasadena | MD | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| JTJ.f. Taylor, INC | Lexington Park | MD | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| JTJf Taylor Inc, (fif Building) | Lexington Park | MD | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| JLJjn, LLC | Baltimore | MD | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| JCJJRhenn Company | Annapolis | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| JLJosy LLC | Frederick | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
 JRJ Manufacturing, LLC | Pasadena | MD | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| JEJRM Enterprises LLC d/b/a Breads Unlimited | Bethesda | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| JLJudyMakesJuices LLC | Bryans Road | MD | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| KVKaizen Ventures, LLC | Columbia | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| KAK Allen Corp. | Westminster | MD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| KAKaren a Koch Dba Miss Nancy's Fancy Bakery | Annapolis | MD | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| KMKarl Maniufacturing Company, INC. | Rosedale | MD | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| KCKawneer Company INC. | Hanover | MD | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| KIKeen Industries, INC. | Halethorpe | MD | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| KSKellogg Snacks | Finksburg | MD | Paper Manufacturing322219 | — | ◇ UNVERIFIED |
| KSKerley Signs INC. | Bowie | MD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| KFKeswick Furnishings, LLC | Belcamp | MD | Furniture and Related Product Manufacturing337214 | — | ◇ UNVERIFIED |
| KEKeyfauver ENT LLC DBA Touche Touchet Bakery and Cafe | Elkridge | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| KPKey Press LTD | Ellicott City | MD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| KFKeystone Furniture Manufacturing, INC. | Federalsburg | MD | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| KWK&G Window Treatments and Upholstery LLC | Baltimore | MD | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| KCKiln Casework Corp. | Beltsville | MD | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
 Kinetic Systems, INC. | Frederick | MD | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| KMKnarr Metal Building Systems LLC | Sykesville | MD | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| KMKnott Mechanical, INC. | Hunt Valley | MD | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| KSK & S Millwork LTD | White Plains | MD | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| KCKupcakes & Company LLC | Clarksville | MD | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| KKKustom Kare Metal Finishing, LLC | Edgewood | MD | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| LNLafarge North America C/o the Corporation Trust, INC | Lutherville | MD | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LNLafarge North America INC. and Its Successors | Baltimore | MD | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| LPLandover Printing Facility | Landover | MD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
