Companies headquartered in Illinois, by prime awards since FY2021
Rows 4,901–5,000 of 5,696, largest first
| Company | City | Primary industry (NAICS) | Prime awards since FY2021 |
|---|---|---|---|
| Prosigma Partners LLC | Ringwood | 541611 Administrative Management and General… | $0 |
| Proskin Enterprises Inc. | Vernon Hills | 722320 Caterers | $0 |
| Prostat Corp. | Glendale Heights | 334515 Instrument Manufacturing for Measuring… | $0 |
| Protestant Memorial Medical Center, Inc. | Belleville | $0 | |
| Proto Cutter Inc. | Freeport | 333515 Cutting Tool and Machine Tool Accessory… | $0 |
| Protopak Engineering Corporation | Elgin | Subcontractor | |
| Pro-type Printing, Inc. | Paxton | 323111 Commercial Printing (except Screen… | Subcontractor |
| P R Streich And Sons Inc. | Franklin Park | 423830 Industrial Machinery and Equipment… | $0 |
| Psportals, Inc. | Naperville | 541511 Custom Computer Programming Services | $0 |
| Public Health Institute Of Metropolitan Chicago | Chicago | 813410 Civic and Social Organizations | $0 |
| Public Safety Direct, Inc. | Crestwood | $0 | |
| Pumpbiz, Inc. | Northbrook | 423830 Industrial Machinery and Equipment… | Subcontractor |
| Qcia Airport Services, LLC | Moline | $0 | |
| Q-sales & Leasing L.L.C. | Hazel Crest | 314999 All Other Miscellaneous Textile Product… | $0 |
| Qualitas Manufacturing Incorporated | Itasca | 332321 Metal Window and Door Manufacturing | $0 |
| Quality Assurance Resources, LLC | Freeburg | 541990 All Other Professional, Scientific… | $0 |
| Quality Float Works Inc. | Streamwood | 334513 Instruments and Related Products… | $0 |
| Quality Logo Products Incorporated | Aurora | 541870 Advertising Material Distribution… | $0 |
| Quincy Regional Airport - Baldwin Field | Quincy | 488119 Other Airport Operations | $0 |
| Quincy Tractor, LLC | Quincy | 423820 Farm and Garden Machinery and Equipment… | $0 |
| Quincy University Corp. | Quincy | $0 | |
| Quintessence Publishing Co. Inc. | Batavia | 513130 Book Publishers | $0 |
| Radefark Enterprises International Inc. | Peoria | 425120 Wholesale Trade Agents and Brokers | $0 |
| Radian Compliance, LLC | Des Plaines | 541611 Administrative Management and General… | Subcontractor |
| Radiation Safety Services, Inc. | Morton Grove | 541620 Environmental Consulting Services | $0 |
| Radiological Society Of North America, Inc. | Oak Brook | 813920 Professional Organizations | $0 |
| Radiological Solutions, Inc. | Rockdale | 541330 Engineering Services | $0 |
| Radon Detection Specialists Inc. | Westmont | 541380 Testing Laboratories and Services | Subcontractor |
| Raeco Rents LLC | Gurnee | 532490 Other Commercial and Industrial… | Subcontractor |
| Rae Products And Chemicals Corp. | Alsip | 325510 Paint and Coating Manufacturing | $0 |
| Ragnar Benson, LLC | Rockford | 238910 Site Preparation Contractors | Subcontractor |
| Rahn Equipment Co. | Danville | 811310 Commercial and Industrial Machinery… | $0 |
| Railhead Corporation | Burr Ridge | 334310 Audio and Video Equipment Manufacturing | $0 |
| Raimonde Drilling Corp. | Addison | 237990 Other Heavy and Civil Engineering… | $0 |
| Ramcel Precision Stamping & Manufacturing LLC | Northbrook | 336370 Motor Vehicle Metal Stamping | Subcontractor |
| Ram Seal Company, Inc. | New Lenox | 423840 Industrial Supplies Merchant Wholesalers | $0 |
| Rarisrex, LLC | Scott Afb | 541512 Computer Systems Design Services | Subcontractor |
| Rathje Enterprises Inc. | Decatur | 238210 Electrical Contractors and Other Wiring… | $0 |
| Rayonix, L.L.C. | Evanston | 334519 Other Measuring and Controlling Device… | $0 |
| R. A. Zweig, Inc. | Glenview | 332710 Machine Shops | $0 |
| Rcra Inc. | Benton | 562910 Remediation Services | $0 |
| Reebie Storage & Moving Company, Inc. | Franklin Park | 484210 Used Household and Office Goods Moving | $0 |
| Rehabilitation Services Associates | Highland Park | 624310 Vocational Rehabilitation Services | $0 |
| Rehabilitation & Vocational Education Program Inc. | Jonesboro | 561720 Janitorial Services | $0 |
| Rehmani Consulting Inc. | Chicago | 541618 Other Management Consulting Services | $0 |
| Relativity Oda LLC | Chicago | 513210 Software Publishers | Subcontractor |
| Reliable Environmental Solutions, Inc. | Springfield | 541620 Environmental Consulting Services | Subcontractor |
| Reliable Fire Equipment, LLC | Orland Park | 423850 Service Establishment Equipment… | $0 |
| Reliance Gear Corporation | Elmhurst | 333515 Cutting Tool and Machine Tool Accessory… | Subcontractor |
| Reliance Specialty Products Inc. | Carol Stream | 325998 All Other Miscellaneous Chemical… | Subcontractor |
| Remedies Renewing Lives | Rockford | 624221 Temporary Shelters | $0 |
| Remed Services, LLC | Skokie | 423450 Medical, Dental, and Hospital Equipment… | $0 |
| Renaissance Schaumburg Hotel & Convention Center | Schaumburg | 721110 Hotels (except Casino Hotels) and Motels | $0 |
| Rend Lake College | Ina | $0 | |
| Renfert USA Inc. | Saint Charles | 339114 Dental Equipment and Supplies… | $0 |
| Rescor Corp. | Countryside | 811412 Appliance Repair and Maintenance | $0 |
| Research Products International Corp. | Mount Prospect | 424690 Other Chemical and Allied Products… | $0 |
| Resource Center For Customer Service Professionals, LLC | Barrington | 611430 Professional and Management Development… | $0 |
| Resource Communications, Inc. | Lisle | 541519 Other Computer Related Services | $0 |
| Respiratory Health Association | Chicago | 813319 Other Social Advocacy Organizations | $0 |
| Retko Group LLC | Highland | $0 | |
| Reynolds Consumer Products LLC | Lake Forest | 331315 Aluminum Sheet, Plate, and Foil… | $0 |
| R & F Products Inc. | Downers Grove | 541715 Research and Development… | $0 |
| Rg Construction Services Inc. | Elmhurst | 238310 Drywall and Insulation Contractors | $0 |
| RGP Industries Inc. | Niles | 339999 All Other Miscellaneous Manufacturing | $0 |
| RHR International LLP | Chicago | 541611 Administrative Management and General… | $0 |
| Ribbe Daniel L Trucking Inc. | Danville | $0 | |
| Richard K. Radek, LLC | Des Plaines | 711510 Independent Artists, Writers… | $0 |
| Richardson Products Inc. | Frankfort | 456199 All Other Health and Personal Care… | $0 |
| Richards-wilcox Inc. | Aurora | 337215 Showcase, Partition, Shelving… | $0 |
| Rick Levin & Associates, Inc. | Chicago | 541613 Marketing Consulting Services | Subcontractor |
| Riechmann Bros LLC | Okawville | $0 | |
| Rigging Gear Sales Inc. | Dixon | 532490 Other Commercial and Industrial… | $0 |
| Rilco Inc. Rock Island | Rock Island | $0 | |
| Ritchie Inc. | Savanna | 562219 Other Nonhazardous Waste Treatment… | $0 |
| Riverside Medical Center | Kankakee | 622110 General Medical and Surgical Hospitals | $0 |
| River Valley Properties, L.L.C. | Hennepin | 531120 Lessors of Nonresidential Buildings… | $0 |
| RJB Properties Inc. | Chicago | 561720 Janitorial Services | Subcontractor |
| RLG Management Consultants, LLC | Naperville | 541690 Other Scientific and Technical… | Subcontractor |
| Rmi Valuation LLC | Northbrook | 531320 Offices of Real Estate Appraisers | $0 |
| RML Health Providers Limited Partnership | Hinsdale | 622310 Specialty (except Psychiatric… | $0 |
| RMS - Recovery Management Services, Inc. | Warrenville | 561440 Collection Agencies | Subcontractor |
| Road Ready Signs | Bloomington | 339950 Sign Manufacturing | $0 |
| Robert Bosch LLC | Oakbrook Terrace | 541330 Engineering Services | Subcontractor |
| Robert C. Weisheit Co. Inc. | Glendale Heights | 332710 Machine Shops | Subcontractor |
| Rochelle Hospitality LLC | Rochelle | $0 | |
| Rockford Map Publishers Inc. | Rockford | 513130 Book Publishers | $0 |
| Rockford Mass Transit District | Rockford | 541850 Indoor and Outdoor Display Advertising | $0 |
| Rockford Park District | Rockford | $0 | |
| Rockford Rigging, Inc. | Roscoe | 332618 Other Fabricated Wire Product… | $0 |
| Rock Island, City Of | Rock Island | $0 | |
| Rock Island County Abstract And Title Guarantee Co. | Rock Island | 541191 Title Abstract and Settlement Offices | $0 |
| Rogers Supply Company, Inc. | Champaign | 423730 Warm Air Heating and Air-Conditioning… | $0 |
| Ron's Produce Co. | Taylorville | 424480 Fresh Fruit and Vegetable Merchant… | $0 |
| Rooter's American Maintenance Inc. | Beckemeyer | 324121 Asphalt Paving Mixture and Block… | $0 |
| Rose Paving, LLC | Villa Park | 238990 All Other Specialty Trade Contractors | $0 |
| Rossi Contractors Inc. | Northlake | 237990 Other Heavy and Civil Engineering… | $0 |
| Roth Family Limited Partnership | Grafton | $0 | |
| Rowe Pest Control | Goreville | 561710 Exterminating and Pest Control Services | $0 |
| Royal Camera Service Inc. | Hanover Park | 811210 Electronic and Precision Equipment… | $0 |