| 1 | the egg & i restaurant | €4.0B | 20,000 | 80 | A |
| 2 | ft. zumwalt r-ii school district | €343.3M | 3,000 | 70 | B |
| 3 | ASCM Midwest Gateway Chapter | €142.8M | 350 | 70 | B |
| 4 | bi-state pool management | €52.9M | 350 | 60 | C+ |
| 5 | Country Club Car Wash STL | €51.0M | 125 | 60 | C+ |
| 6 | AC Trucking, Inc | €34.3M | 125 | 60 | C+ |
| 7 | Anodyne Surgical | €30.6M | 125 | 60 | C+ |
| 8 | Permian Plastics, LLC | €28.6M | 125 | 60 | C+ |
| 9 | Axiom Products | €24.8M | 125 | 60 | C+ |
| 10 | O’Fallon Buick GMC | €24.8M | 125 | 60 | C+ |
| 11 | jack schmitt chevrolet of ofallon | €23.8M | 125 | 60 | C+ |
| 12 | Netco Title - An AmTrust Financial Company | €22.9M | 350 | 60 | C+ |
| 13 | REI Blueprint | €22.9M | 350 | 60 | C+ |
| 14 | Allyson Group | €20.5M | 125 | 60 | C+ |
| 15 | hawkins construction and flatwork, llc | €18.9M | 125 | 60 | C+ |
| 16 | Kuesel Companies | €18.9M | 125 | 60 | C+ |
| 17 | Country Side Carpets & Interiors, Inc. | €18.9M | 125 | 60 | C+ |
| 18 | VISION Electric & Systems | €18.9M | 125 | 60 | C+ |
| 19 | Phillips Interior / Exterior systems | €18.9M | 125 | 60 | C+ |
| 20 | C Bennett Building Supply | €18.9M | 125 | 60 | C+ |
| 21 | Eco-Rebar Support Systems | €17.8M | 30 | 60 | C+ |
| 22 | City of O'Fallon, Illinois | €12.6M | 125 | 60 | C+ |
| 23 | Cope Auto & Marine, Inc. | €12.2M | 30 | 60 | C+ |
| 24 | susie g’s specialty cakes | €12.2M | 30 | 60 | C+ |
| 25 | sweet katie bee’s cupcake & coffee bar | €12.2M | 30 | 60 | C+ |
| 26 | Axiom Connected | €11.8M | 125 | 60 | C+ |
| 27 | american electronics appliances & furniture | €11.6M | 125 | 60 | C+ |
| 28 | jack schmitt family of dealerships, inc | €11.6M | 125 | 60 | C+ |
| 29 | Alpha Omega Computing LLC | €11.1M | 125 | 60 | C+ |
| 30 | Trustway Warranty Services | €11.0M | 30 | 60 | C+ |
| 31 | Rivercity Financial | €11.0M | 30 | 60 | C+ |
| 32 | Hansen's Tree Service & Environmental Resources | €9.3M | 125 | 50 | C |
| 33 | SelectOFALLON (MO) Economic Development | €8.6M | 350 | 50 | C |
| 34 | Kohrs Truck & Auto Repair, Inc. | €8.2M | 30 | 50 | C |
| 35 | us revi rentals llc | €8.2M | 125 | 50 | C |
| 36 | Coldwell Banker Gundaker Hwy K and N | €8.2M | 125 | 50 | C |
| 37 | chic lumber co & design center | €7.8M | 30 | 50 | C |
| 38 | aaa tool & machine | €6.8M | 30 | 50 | C |
| 39 | Cambridge House of O'Fallon | €6.7M | 125 | 50 | C |
| 40 | Right at Home of St Charles | €6.7M | 125 | 50 | C |
| 41 | Pet Solutions Group | €6.6M | 30 | 50 | C |
| 42 | Computershare Communication Services Limited | €6.3M | 30 | 50 | C |
| 43 | weAudit.com | €6.3M | 30 | 50 | C |
| 44 | Hoff Heating & A/C | €6.0M | 30 | 50 | C |
| 45 | mueller enterprise group llc | €6.0M | 30 | 50 | C |
| 46 | t-bones natural meats | €6.0M | 30 | 50 | C |
| 47 | c rallo meat market | €6.0M | 30 | 50 | C |
| 48 | Seventeen Motors, Inc. | €5.9M | 30 | 50 | C |
| 49 | Auffenberg Imports Inc. | €5.9M | 30 | 50 | C |
| 50 | White Auto Body Inc | €5.9M | 30 | 50 | C |
| 51 | Steve's Auto Body, Inc. - O'Fallon, IL | €5.7M | 30 | 50 | C |
| 52 | healthCAR by Marathon Administrative Company | €5.7M | 30 | 50 | C |
| 53 | mnw inc | €5.6M | 30 | 50 | C |
| 54 | Gold Stop LLC | €5.2M | 30 | 50 | C |
| 55 | tricorp enterprises, ltd | €5.1M | 125 | 50 | C |
| 56 | royal bamboo buffet | €5.1M | 125 | 50 | C |
| 57 | la parrilla mexican | €5.1M | 125 | 50 | C |
| 58 | Business Manager 365, Woman Owned Veteran Business | €5.1M | 30 | 50 | C |
| 59 | winghaven pediatrics llc | €5.0M | 30 | 50 | C |
| 60 | retirement time insurance | €5.0M | 30 | 50 | C |
| 61 | Sandhill Counseling & Consultation | €5.0M | 30 | 50 | C |
| 62 | o’fallon convenient care-bjc medical group | €5.0M | 30 | 50 | C |
| 63 | The Regency O'Fallon | €4.9M | 30 | 50 | C |
| 64 | kuk sool won of o’fallon | €4.9M | 30 | 50 | C |
| 65 | advanced drywall systems | €4.5M | 30 | 50 | C |
| 66 | gevers paving co., inc | €4.5M | 30 | 50 | C |
| 67 | acculift foundation repair llc | €4.5M | 30 | 50 | C |
| 68 | Rep Contracting, LLC | €4.5M | 30 | 50 | C |
| 69 | artown roofing and contracting | €4.5M | 30 | 50 | C |
| 70 | Bi-State Pool | €4.5M | 30 | 50 | C |
| 71 | phoenix anjon building materials inc | €4.5M | 30 | 50 | C |
| 72 | Rainbow Painting Company | €4.5M | 30 | 50 | C |
| 73 | wilson siding | €4.5M | 30 | 50 | C |
| 74 | bigk enterprises, inc. | €4.1M | 30 | 50 | C |
| 75 | third party parts | €4.1M | 30 | 50 | C |
| 76 | MI2 Operating Systems | €3.8M | 30 | 50 | C |
| 77 | coolco.club | €3.8M | 5 | 50 | C |
| 78 | CoolCo.Club™ | €3.8M | 5 | 50 | C |
| 79 | K-PRO U.S., LP | €3.8M | 5 | 50 | C |
| 80 | Rose Web Services LLC | €3.8M | 125 | 50 | C |
| 81 | synet technologies | €3.5M | 125 | 50 | C |
| 82 | Winner Technology Inc | €3.5M | 30 | 50 | C |
| 83 | KWS Electrical & Wireless | €3.5M | 30 | 50 | C |
| 84 | Digital Security Corporation | Division of PASS Security | €3.5M | 30 | 50 | C |
| 85 | new image school for cosmetology | €3.4M | 30 | 50 | C |
| 86 | dancestation | €3.4M | 30 | 50 | C |
| 87 | Phoenix Textile Corp | €3.1M | 30 | 50 | C |
| 88 | O'Fallon Police Officers' Association | €3.1M | 125 | 50 | C |
| 89 | O'Fallon Fire Rescue | €3.0M | 30 | 50 | C |
| 90 | k & p precast, inc | €2.9M | 30 | 50 | C |
| 91 | transportation products sales co | €2.9M | 30 | 50 | C |
| 92 | InformaServ® Inc. | €2.8M | 30 | 50 | C |
| 93 | st charles county art council | €2.8M | 30 | 50 | C |
| 94 | st louis rv | €2.8M | 30 | 50 | C |
| 95 | janson automotive | €2.8M | 30 | 50 | C |
| 96 | the flavor room franchising | €2.8M | 30 | 50 | C |
| 97 | o’fallon decorating center | €2.8M | 30 | 50 | C |
| 98 | suzanne’s dollhouses & miniatures | €2.8M | 30 | 50 | C |
| 99 | Nouriche Nutrition Ltd | €2.6M | 5 | 50 | C |
| 100 | PPE Resource Group, LLC | €2.6M | 5 | 50 | C |