| $150,000–350,000 | 666 TRANSPORTATION INC. | ARLINGTON HEIGHTS, IL | BMO Bank National Association |
| $150,000–350,000 | A & C ELECTRIC CO., INC. | ARLINGTON HEIGHTS, IL | Barrington Bank & Trust Company, National Association |
| $150,000–350,000 | A MOTHERS TOUCH, A CARING CHILD CENTER INC. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | A&B SANCHEZ LANDSCAPING, INC. | ARLINGTON HEIGHTS, IL | Wintrust Bank, National Association |
| $150,000–350,000 | A. ALLEN WOODS & ASSOCIATES, INC. | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | A. BLOCK MARKETING, INC. | ARLINGTON HEIGHTS, IL | St. Charles Bank & Trust Company, National Association |
| $2–5 million | A.B.C. PLUMBING, HEATING, COOLING, & ELECTRIC, INC. | ARLINGTON HEIGHTS, IL | Northbrook Bank & Trust Company, National Association |
| $150,000–350,000 | AAA PRESS SPECIALISTS, INC. | ARLINGTON HEIGHTS, IL | BMO Bank National Association |
| $150,000–350,000 | AB DERMATOLOGY LLC | ARLINGTON HEIGHTS, IL | Citibank, N.A. |
| $150,000–350,000 | ACCORD DETECTIVE AGENCY INC | ARLINGTON HEIGHTS, IL | Bank of America, National Association |
| $350,000–1 million | ACLAT INC | ARLINGTON HEIGHTS, IL | Union National Bank |
| $150,000–350,000 | ADDISON BUILDING MATERIAL | ARLINGTON HEIGHTS, IL | Itasca Bank & Trust Co. |
| $5–10 million | ADVANCE MECHANICAL SYSTEMS, INC. | ARLINGTON HEIGHTS, IL | CIBC Bank USA |
| $150,000–350,000 | ADVANCED PERIODONTICS, ANESTHESIA AND DENTAL IMPLANTS, P.C. | ARLINGTON HEIGHTS, IL | Cornerstone National Bank & Trust Company |
| $1–2 million | ADVANSOFT INTERNATIONAL INC | ARLINGTON HEIGHTS, IL | Itasca Bank & Trust Co. |
| $150,000–350,000 | ALCO LOGISTICS, LLC | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | ALL PHASE ELECTRIC COMPANY | ARLINGTON HEIGHTS, IL | The Huntington National Bank |
| $350,000–1 million | ALLEGIANCE CONSTRUCTION GROUP INCORPORATED | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | AMERICA'S HEALTH & RESOURCE CENTER LTD | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $1–2 million | ANDRES MEDICAL BILLING, LTD. | ARLINGTON HEIGHTS, IL | Byline Bank |
| $350,000–1 million | ARCUS TECHNOLOGIES INC. | ARLINGTON HEIGHTS, IL | Hanmi Bank |
| $150,000–350,000 | ARLIINGTON PEDIATRICS LTD | ARLINGTON HEIGHTS, IL | Home State Bank, National Association |
| $150,000–350,000 | ARLINGTON COLLISION CORPORATION | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | ARLINGTON DES PLAINES TENNIS CENTER L.P | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | ARLINGTON EYE PHYSICIANS LLC | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $350,000–1 million | ARLINGTON HEIGHTS L.L.C. | ARLINGTON HEIGHTS, IL | LendingClub Bank, National Association |
| $350,000–1 million | ARLINGTON PEDIATRIC THERAPY MANAGEMENT SERVICES, LTD. | ARLINGTON HEIGHTS, IL | Citibank, N.A. |
| $150,000–350,000 | ARLINGTON PRODUCE | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | ARLINGTON RIDGE PATHOLOGY | ARLINGTON HEIGHTS, IL | The Northern Trust Company |
| $150,000–350,000 | ARLINGTON STRUCTURAL STEEL AND FABRICATIONS, INC. | ARLINGTON HEIGHTS, IL | Byline Bank |
| $2–5 million | ATOMATIC MECHANICAL SERVICES INC | ARLINGTON HEIGHTS, IL | Cornerstone National Bank & Trust Company |
| $350,000–1 million | AUGMEDICS INC | ARLINGTON HEIGHTS, IL | PNC Bank, National Association |
| $150,000–350,000 | AUTOMATIC LIQUID PACKAGING SOLUTIONS, LLC | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $350,000–1 million | AVANT TECNO USA INC | ARLINGTON HEIGHTS, IL | Stearns Bank National Association |
| $350,000–1 million | BANCARE, INC. | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | BASIL'S RESTAURANT, INC. | ARLINGTON HEIGHTS, IL | Byline Bank |
| $1–2 million | BATTAGLIA INDUSTRIES, INC. | ARLINGTON HEIGHTS, IL | BMO Bank National Association |
| $150,000–350,000 | BG HOME HEALTH PROVIDERS LLC | ARLINGTON HEIGHTS, IL | Bank of America, National Association |
| $350,000–1 million | BHFX LLC | ARLINGTON HEIGHTS, IL | American Community Bank & Trust |
| $150,000–350,000 | BIL-MAC EXPRESS, INC. | ARLINGTON HEIGHTS, IL | Signature Bank |
| $350,000–1 million | BOYER-ROSENE MOVING AND STORAGE, INC. | ARLINGTON HEIGHTS, IL | Oxford Bank & Trust |
| $150,000–350,000 | BRADISH ASSOCIATES, LTD. | ARLINGTON HEIGHTS, IL | Byline Bank |
| $350,000–1 million | BRITE-O-MATIC MANUFACTURING, INC. | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $150,000–350,000 | BUILDING TECHNOLOGY CONSULTANTS, INC. | ARLINGTON HEIGHTS, IL | Cornerstone National Bank & Trust Company |
| $150,000–350,000 | CAIN-FORLAW COMPANY, INC | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $1–2 million | CAMINITI ASSOCIATES INC | ARLINGTON HEIGHTS, IL | Bank of Hope |
| $150,000–350,000 | CARE ANIMAL HOSPITAL OF ARLINGTON HEIGHTS, LTD | ARLINGTON HEIGHTS, IL | Lake Forest Bank & Trust Company, National Association |
| $150,000–350,000 | CASEY EQUIPMENT CO., INC. | ARLINGTON HEIGHTS, IL | Barrington Bank & Trust Company, National Association |
| $150,000–350,000 | CENTER OF ILLINOIS HOME HEALTHCARE INC. | ARLINGTON HEIGHTS, IL | Citibank, N.A. |
| $150,000–350,000 | CHICAGO LAMINATING, INC. | ARLINGTON HEIGHTS, IL | Community Bank of Elmhurst |
| $350,000–1 million | CHRISTIAN EDUCATIONAL SUPPLY COMPANY | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | CLEAN FORK LLC | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $350,000–1 million | COMPASS INC | ARLINGTON HEIGHTS, IL | Union National Bank |
| $350,000–1 million | CONTOUR SCREW PRODUCTS, INC. | ARLINGTON HEIGHTS, IL | First American Bank |
| $350,000–1 million | CRITICAL ENVIRONMENTS PROFESSIONALS, INC. | ARLINGTON HEIGHTS, IL | Cross River Bank |
| $150,000–350,000 | CULTIVATING YOUNG MINDS, LLC | ARLINGTON HEIGHTS, IL | T Bank, National Association |
| $350,000–1 million | DAHME MECHANICAL INDUSTRIES, INC. | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | DICKERSON ENGINEERING INC | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $350,000–1 million | DIGITAL DESIGN CORPORATION | ARLINGTON HEIGHTS, IL | BMO Bank National Association |
| $150,000–350,000 | DIGITAL MANAGEMENT PARTNERS LLC | ARLINGTON HEIGHTS, IL | TD Bank, National Association |
| $150,000–350,000 | DJ MUELLER ENTERPRISES INC. | ARLINGTON HEIGHTS, IL | First Bank of the Lake |
| $350,000–1 million | DONALD GADDIS CO., INC | ARLINGTON HEIGHTS, IL | Bank of America, National Association |
| $350,000–1 million | DOWNES SWIMMING POOL CO., INC. | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $150,000–350,000 | DR PALERMO AND ASSOCIATES, LTD | ARLINGTON HEIGHTS, IL | Stearns Bank National Association |
| $150,000–350,000 | DR. NEIL W. MARGOLIS OD PC | ARLINGTON HEIGHTS, IL | PNC Bank, National Association |
| $350,000–1 million | DROST, KIVLAHAN, MCMAHON, & O'CONNOR, LLC | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $150,000–350,000 | EGG HARBOR CAFE III, INC | ARLINGTON HEIGHTS, IL | Barrington Bank & Trust Company, National Association |
| $150,000–350,000 | ELEVATED COMMERCIAL CONSTRUCTION, INC. | ARLINGTON HEIGHTS, IL | Byline Bank |
| $350,000–1 million | EMI PORTA OPCO LLC | ARLINGTON HEIGHTS, IL | Bell Bank |
| $150,000–350,000 | EMMRICK ELECTRIC, INC. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | EPCOT TECHNOLOGIES INC. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $350,000–1 million | F2 FREIGHT GROUP INC. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | FANTASY AMUSEMENT CO., INC. | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $1–2 million | FEDERATED GROUP INC | ARLINGTON HEIGHTS, IL | Hinsdale Bank & Trust Company, National Association |
| $150,000–350,000 | FIRST PRESBYTERIAN CHURCH OF ARLINGTON HEIGHTS | ARLINGTON HEIGHTS, IL | Village Bank and Trust, National Association |
| $2–5 million | FLUENCE AUTOMATION LLC | ARLINGTON HEIGHTS, IL | Wintrust Bank, National Association |
| $150,000–350,000 | FOR PAPA'S SAKE HOME CARE FOR FAMILIES, LTD. | ARLINGTON HEIGHTS, IL | Barrington Bank & Trust Company, National Association |
| $150,000–350,000 | FORBICI SALON & SPA, LTD. | ARLINGTON HEIGHTS, IL | Northbrook Bank & Trust Company, National Association |
| $150,000–350,000 | FRICTIONLESS SOLUTIONS, INC. | ARLINGTON HEIGHTS, IL | First American Bank |
| $350,000–1 million | FSS TECHNOLOGIES, LLC | ARLINGTON HEIGHTS, IL | Banc of California |
| $350,000–1 million | G S FLOOR DESIGNS, INC | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $350,000–1 million | GENERAL ASSOCIATION OF REGULAR BAPTIST CHURCHES | ARLINGTON HEIGHTS, IL | First American Bank |
| $150,000–350,000 | GERALDINE A. CRETACCI, DVM, P.C. | ARLINGTON HEIGHTS, IL | Bank of America, National Association |
| $350,000–1 million | GOURMENT 45, INC. | ARLINGTON HEIGHTS, IL | American Commercial Bank & Trust, National Association |
| $5–10 million | GURTZ ELECTRIC CO. | ARLINGTON HEIGHTS, IL | CIBC Bank USA |
| $150,000–350,000 | GYNECOLOGICAL & OBSTETRIC ASSOCIATES, S.C. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $1–2 million | HAND SURGERY ASSOCIATES, S.C. | ARLINGTON HEIGHTS, IL | Wintrust Bank, National Association |
| $150,000–350,000 | HARMONY HOSPITALITY LLC DBA HEY NONNY | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $350,000–1 million | HARVEY ANESTHESIOLOGISTS, SC | ARLINGTON HEIGHTS, IL | American Commercial Bank & Trust, National Association |
| $150,000–350,000 | HELLER LUMBER CO., INC. | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $150,000–350,000 | HILLSIDE AUTO BODY & SERVICE, INC. | ARLINGTON HEIGHTS, IL | Barrington Bank & Trust Company, National Association |
| $350,000–1 million | HODGES, LOIZZI, EISENHAMMER, RODICK & KOHN LLP | ARLINGTON HEIGHTS, IL | Heartland Bank and Trust Company |
| $350,000–1 million | HOMMER TOOL & MFG., INC. | ARLINGTON HEIGHTS, IL | Libertyville Bank & Trust Company, National Association |
| $350,000–1 million | IMPACT IRON, LLC | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $350,000–1 million | IMPERIAL SURVEILLANCE INC. | ARLINGTON HEIGHTS, IL | First Mid Bank and Trust National Association |
| $150,000–350,000 | INFORMATICSIQ, INC. | ARLINGTON HEIGHTS, IL | JPMorgan Chase Bank, National Association |
| $1–2 million | INNOVATED STAFFING, LLC | ARLINGTON HEIGHTS, IL | Fifth Third Bank |
| $350,000–1 million | INTELLIGENT LIGHTING CREATIONS, INC. | ARLINGTON HEIGHTS, IL | Crystal Lake Bank & Trust Company, National Association |
| $150,000–350,000 | IVY TECH SOLUTIONS INC. | ARLINGTON HEIGHTS, IL | Union National Bank |
| $150,000–350,000 | J&J PAVEMENT REPAIRS | ARLINGTON HEIGHTS, IL | Cornerstone National Bank & Trust Company |