| RMRocky Mountain Orthodontics | Denver | CO | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| RMRocky Mountain Prestress LLC (structural Plant) | Denver | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RMRocky Mtn Dyeing & Finishing | Denver | CO | Textile Mills313310 | — | ◇ UNVERIFIED |
| RCRocla Concrete Tie Incorporated | Denver | CO | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RJRon Jones Lumber Company | Beulah | CO | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| RMRosedale Marketing Dba Port-a Stall | Erie | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| RPRoss Printing & Marketing INC | Denver | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RCRoyal Crest Dairy Longmont | Longmont | CO | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| RMRoyal Marble, LLC | Florence | CO | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RERpm Electronics - Pcb Mfg Facility | Fort Collins | CO | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| RWRt Welding INC | Bayfield | CO | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| RORudi's Organic Bakery | Boulder | CO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| RVRum Ventures Ii-tharp Cabinet | Loveland | CO | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RSRussell Stover Candy | Montrose | CO | Food Manufacturing311330 | — | ◇ UNVERIFIED |
| RLRuth Limited | Highlands Ranch | CO | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| RERyco Equipment Leasing R L L P | Colorado City | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SISaddlehorn Interconnect 16-16-1222-12 | Hudson | CO | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| SCSae Circuits Colorado INC | Boulder | CO | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SCSae Circuits Colorado INC | Boulder | CO | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SISafeway Incorporated Denver Bread Plant | Denver | CO | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| SMSafeway Milk Plant | Denver | CO | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| SCSaguache Cnty Road & Bridge Dept | Del Norte | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SCSamsonite Corporation | Denver | CO | Leather and Allied Product Manufacturing316990 | — | ◇ UNVERIFIED |
| SCSanmina-sci Corporation | Fountain | CO | Computer and Electronic Product Manufacturing334112 | — | ◇ UNVERIFIED |
| SCSchafer Commercial Seating INC | Denver | CO | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| SFSchauenburg Flexadux Corporation | Clifton | CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| STSchlumberger Technology Corporation | Grand Junction | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSchmidt Const CO | Castle Rock | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SCSchmidt Const CO | Colorado Springs | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SESchott Electronic Packaging | Golden | CO | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SISchulte Investments (was Elsro Inc) | Evans | CO | Plastics and Rubber Products Manufacturing326192 | — | ◇ UNVERIFIED |
| SLScotts Liquid Gold INC | Denver | CO | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| SSScott System - Helena St | Aurora | CO | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
 Seagate Technology LLC | Longmont | CO | Computer and Electronic Product Manufacturing334112 | — | ◇ UNVERIFIED |
| SFSeattle Fish Company | Denver | CO | Food Manufacturing311712 | — | ◇ UNVERIFIED |
| SAService Air of Denver Inc. | Denver | CO | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| SCSiegrist Construction CO -del Camino Pit | Longmont | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SNSierra Nevada Corporation | Englewood | CO | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| SSSierra Space | Louisville | CO | Transportation Equipment Manufacturing336419 | — | ◇ UNVERIFIED |
| SSSierra Space | Louisville | CO | Transportation Equipment Manufacturing336419 | — | ◇ UNVERIFIED |
| SGSignal Graphics Printing | Denver | CO | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SLSign Language Xl | Denver | CO | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SASilver Anvil Engineering Corporation | Golden | CO | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| SCSimon Contractors - Bennett Ready-mix | Bennett | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSimon Contractors Dba Ogallala Ready Mix | Ogallala | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSimon Contractors - Portable Plant #1 | Cheyenne | CO | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SPSino Promise INC | Windsor | CO | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| STSirna Therapeutics, INC. | Boulder | CO | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SMSky Mountain LLC | Parker | CO | Food Manufacturing311340 | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix - Osage Portable Plant | Denver | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
