| 1 | knaack | $406.9M | 3,000 | 70 |
| 2 | Tria Global Solutions | $63.5M | 125 | 60 |
| 3 | Countryside Flower Shop, Nursery & Garden Center | $51.0M | 125 | 60 |
| 4 | COMMERCIAL-EASE Commercial Contents Claims Valuation Specialists | $45.9M | 125 | 60 |
| 5 | ALTRAN CORPORATION | $38.1M | 30 | 60 |
| 6 | Mathews Company (M-C) | $29.2M | 125 | 60 |
| 7 | Chicago Plastic Systems Inc | $28.6M | 125 | 60 |
| 8 | Home State Bank / N.A. | $26.3M | 125 | 60 |
| 9 | Serv-All Die Casting Corp | $25.0M | 125 | 60 |
| 10 | CHSD 155 SCHOOL DISTRICT | $19.2M | 350 | 60 |
| 11 | Althoff Industries | $18.9M | 125 | 60 |
| 12 | Ringers Landscape Services, Inc. | $18.9M | 125 | 60 |
| 13 | ringers landscape services,inc. | $18.9M | 125 | 60 |
| 14 | Geske Paving | $18.9M | 125 | 60 |
| 15 | Heartland Cabinet Supply, Inc. | $17.8M | 30 | 60 |
| 16 | WeatherWise Heating & Cooling Inc. | $16.0M | 125 | 60 |
| 17 | Signature Foods Group Inc | $15.3M | 30 | 60 |
| 18 | MycoLabs | $12.2M | 30 | 60 |
| 19 | Follow the Action Product Lines | $12.2M | 30 | 60 |
| 20 | Widgeteer | $12.2M | 30 | 60 |
| 21 | Fahloney's Pet Retail Outlet | $12.2M | 30 | 60 |
| 22 | Jeris Hallmark | $12.2M | 30 | 60 |
| 23 | Rebel Logistics Service LLC | $12.2M | 30 | 60 |
| 24 | Worldwide Logistic Partners, Inc. | $12.2M | 30 | 60 |
| 25 | Gourmet Awards | $12.2M | 30 | 60 |
| 26 | w. smith cartage company, inc. | $12.0M | 125 | 60 |
| 27 | geske and sons inc | $11.8M | 30 | 60 |
| 28 | Neis Insurance Agency, Inc | $11.0M | 30 | 60 |
| 29 | java jugglers | $8.8M | 125 | 50 |
| 30 | Steel Founders' Society of America | $8.0M | 30 | 50 |
| 31 | Reichert Chevrolet & Buick | $7.4M | 30 | 50 |
| 32 | X-CEL X-RAY CORPORATION | $7.3M | 30 | 50 |
| 33 | MRI Coil Guru | $7.3M | 30 | 50 |
| 34 | Frontline Mold Technologies | $7.0M | 30 | 50 |
| 35 | BRENCO MACHINE & TOOL INC | $7.0M | 30 | 50 |
| 36 | American Calibration, Inc. | $7.0M | 30 | 50 |
| 37 | Precision Waterjet & Laser LLC, dba PWJet | $7.0M | 30 | 50 |
| 38 | Variable Operations Technologies, Inc. (Vo-Tech, Inc) | $7.0M | 30 | 50 |
| 39 | Alpha Star Tool & Mold Inc | $6.9M | 30 | 50 |
| 40 | PRESSURE SPECIALIST INC | $6.9M | 30 | 50 |
| 41 | Marble Tech, Inc. | $6.6M | 30 | 50 |
| 42 | On Target Range and Tactical Training Center | $6.6M | 30 | 50 |
| 43 | Bio Bidet by Bemis | $6.6M | 30 | 50 |
| 44 | Burton Partners | $6.3M | 30 | 50 |
| 45 | Good Sense | $6.3M | 30 | 50 |
| 46 | Engineered Finishing Systems | $6.0M | 30 | 50 |
| 47 | eastern development group | $6.0M | 30 | 50 |
| 48 | Viking Dodge Inc | $5.9M | 30 | 50 |
| 49 | Crystal Lake Chrysler Jeep | $5.9M | 30 | 50 |
| 50 | Crystal Lake Honda | $5.9M | 30 | 50 |
| 51 | Sunset Logistics & Materials | $5.9M | 33 | 50 |
| 52 | Autrol America, Inc | $5.7M | 30 | 50 |
| 53 | G&M Manufacturing Corp. | $5.7M | 30 | 50 |
| 54 | Big Beam Emergency Systems | $5.7M | 30 | 50 |
| 55 | Independent Auto Craft Inc | $5.7M | 30 | 50 |
| 56 | Georgio's Chicago Pizzeria | $5.1M | 125 | 50 |
| 57 | Zoduna Corporation | $5.1M | 30 | 50 |
| 58 | Waterly | $5.1M | 30 | 50 |
| 59 | palanca eduardo md | $5.0M | 30 | 50 |
| 60 | kay family chiropractic center | $5.0M | 30 | 50 |
| 61 | The Crystal Lake Strikers, Inc | $4.9M | 30 | 50 |
| 62 | RPM Energy Solutions | $4.5M | 30 | 50 |
| 63 | plumb-in-time plumbing services inc. | $4.5M | 30 | 50 |
| 64 | elite concrete raising | $4.5M | 30 | 50 |
| 65 | Benson Electrical Contracting, Inc. | $4.5M | 30 | 50 |
| 66 | Performance Exteriors | $4.5M | 30 | 50 |
| 67 | certapro painters of mchenry | $4.5M | 30 | 50 |
| 68 | DSR Construction Co | $4.5M | 30 | 50 |
| 69 | Banyan Builders | $4.5M | 30 | 50 |
| 70 | Charles Copley Roofing, Inc | $4.5M | 30 | 50 |
| 71 | Lee Jensen Sales Company, Inc. | $4.5M | 30 | 50 |
| 72 | dulcedo construction | $4.5M | 30 | 50 |
| 73 | Alt and Son Contracting Inc. | $4.5M | 30 | 50 |
| 74 | Dulcedo Millworks | $4.5M | 30 | 50 |
| 75 | ocs general contractors | $4.5M | 30 | 50 |
| 76 | mchenry county door | $4.5M | 30 | 50 |
| 77 | universal reconstruction | $4.5M | 30 | 50 |
| 78 | LB Hall Enterprises Inc | $4.5M | 30 | 50 |
| 79 | petersen sealcoating & paving, inc. | $4.5M | 30 | 50 |
| 80 | Great Lakes Sales Leadership LLC | $4.1M | 125 | 50 |
| 81 | wheel werks custom bikes | $4.1M | 30 | 50 |
| 82 | lazy j's firearms inc | $4.1M | 30 | 50 |
| 83 | COVER AFRIKA | $3.8M | 5 | 50 |
| 84 | byron painting decorati | $3.8M | 5 | 50 |
| 85 | bunks & more warehouse | $3.8M | 30 | 50 |
| 86 | preferred office furniture | $3.8M | 30 | 50 |
| 87 | mayfair furniture and carpets | $3.8M | 30 | 50 |
| 88 | MSA (Mechanical Services Associates Corp.) | $3.7M | 30 | 50 |
| 89 | Stealth Security & Home Theatre Systems, Inc | $3.5M | 30 | 50 |
| 90 | tss chicago | $3.5M | 30 | 50 |
| 91 | First Institute Inc | $3.4M | 30 | 50 |
| 92 | First Institute, Inc. | $3.4M | 30 | 50 |
| 93 | CALCO Companies | $3.3M | 30 | 50 |
| 94 | Ronin Event Creative | $3.3M | 30 | 50 |
| 95 | In House Apparel & Promotions | $3.0M | 30 | 50 |
| 96 | MBH & ASSOCIATES, LTD. | $3.0M | 5 | 50 |
| 97 | TMJ Architectural, LLC | $3.0M | 5 | 50 |
| 98 | big beam emergency systems inc. | $2.9M | 30 | 50 |
| 99 | moderntransportation | $2.9M | 30 | 50 |
| 100 | Concentric Integration | $2.8M | 30 | 50 |