| $350,000–1 million | AMERICAN PULVERIZER COMPANY | SAINT LOUIS, MO | Commerce Bank |
| $150,000–350,000 | AMERICAN RADIOLABELED CHEMICALS INC | SAINT LOUIS, MO | U.S. Bank, National Association |
| $350,000–1 million | AMERICAN READY MIX COMPANY | SAINT LOUIS, MO | Triad Bank |
| $150,000–350,000 | AMERICAN SPOTTING COMPANY | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | AMERICAN SPOTTING COMPANY OF CALIFORNIA | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | AMERICAN SPOTTING COMPANY OF FLORIDA | SAINT LOUIS, MO | Midwest BankCentre |
| $350,000–1 million | AMERICAN SPOTTING COMPANY OF MISSOURI | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | AMERICAN SPOTTING OF OHIO | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | AMERICAN WATER TREATMENT, INC. | SAINT LOUIS, MO | UMB Bank, National Association |
| $1–2 million | AMF ELECTRIC CO INC | SAINT LOUIS, MO | Cass Commercial Bank |
| $150,000–350,000 | AMIGOS OF KIRKWOOD, LLC | SAINT LOUIS, MO | Carrollton Bank |
| $1–2 million | AMITECH SOLUTIONS INC. | SAINT LOUIS, MO | Enterprise Bank & Trust |
| $150,000–350,000 | AMITY COMPANY, INC. | SAINT LOUIS, MO | Triad Bank |
| $350,000–1 million | AMPLEFORTH ENTERPRISES, INC. | SAINT LOUIS, MO | St. Louis Bank |
| $2–5 million | ANDERS MINKLER HUBER & HELM LLP | SAINT LOUIS, MO | U.S. Bank, National Association |
| $150,000–350,000 | ANDERSON HOAGLAND AND COMPANY | SAINT LOUIS, MO | St. Louis Bank |
| $150,000–350,000 | ANDERSON MANAGEMENT SERVICES, LLC | SAINT LOUIS, MO | First Bank |
| $150,000–350,000 | ANDERSON TECHNOLOGIES I, LP | SAINT LOUIS, MO | Carrollton Bank |
| $150,000–350,000 | ANDREW DILL DMD AMY VARBLE DMD AND MICHAEL WONG DMD PC | SAINT LOUIS, MO | PNC Bank, National Association |
| $150,000–350,000 | ANDREW W DIELMANN REALTY COMPANY, LLC | SAINT LOUIS, MO | Peoples National Bank, National Association |
| $150,000–350,000 | ANDY WURM TIRE & WHEEL CO IN | SAINT LOUIS, MO | Simmons Bank |
| $350,000–1 million | ANDY'S SEASONING, INC . | SAINT LOUIS, MO | Commerce Bank |
| $350,000–1 million | ANESTHESIA PARTNERS LTD | SAINT LOUIS, MO | Fifth Third Bank |
| $150,000–350,000 | ANGEL'S CARE | SAINT LOUIS, MO | Bank of America, National Association |
| $150,000–350,000 | ANNEX ENTERPRISES | SAINT LOUIS, MO | Bank Star |
| $150,000–350,000 | ANNIE MALONE CHILDREN AND FAMILY SERVICE CENTER | SAINT LOUIS, MO | Midwest BankCentre |
| $1–2 million | ANOVA FURNISHINGS INC | SAINT LOUIS, MO | PNC Bank, National Association |
| $150,000–350,000 | ANTHONINO'S TAVERNA, LLC | SAINT LOUIS, MO | Lindell Bank & Trust Company |
| $150,000–350,000 | ANTIQUE REPRODUCTIONS, INC. | SAINT LOUIS, MO | Commerce Bank |
| $150,000–350,000 | APARTMENT EXCHANGE, INC. | SAINT LOUIS, MO | Triad Bank |
| $150,000–350,000 | APOLLO MEDICAL HOLDINGS, LLC | SAINT LOUIS, MO | Commerce Bank |
| $350,000–1 million | APPLICATION ENGINEERING GROUP | SAINT LOUIS, MO | Bank of America, National Association |
| $1–2 million | AQUARIUS, LTD. | SAINT LOUIS, MO | CIBC Bank USA |
| $350,000–1 million | ARCADE PRINTING COMPANY | SAINT LOUIS, MO | The Central Trust Bank |
| $150,000–350,000 | ARCADIA WOODWORKING, INC. | SAINT LOUIS, MO | U.S. Bank, National Association |
| $150,000–350,000 | ARCH FRAMING & DESIGN, INC. | SAINT LOUIS, MO | West Community CU |
| $150,000–350,000 | ARCHCITY DEFENDERS | SAINT LOUIS, MO | Sterling Bank |
| $350,000–1 million | ARCHDIOCESAN ELEMENTARY SCHOOLS OF THE ARCHDIOCESE OF ST. LO | SAINT LOUIS, MO | Peoples National Bank, National Association |
| $350,000–1 million | ARCHIMAGES INC | SAINT LOUIS, MO | Midwest BankCentre |
| $350,000–1 million | ARCHITECTURAL CONTROL SYSTEMS, INC. | SAINT LOUIS, MO | Commerce Bank |
| $150,000–350,000 | ARCHITECTURAL SHEET METAL SYSTEMS INC | SAINT LOUIS, MO | Cass Commercial Bank |
| $150,000–350,000 | ARCHWAY ELECTRICAL SALES CORP | SAINT LOUIS, MO | PNC Bank, National Association |
| $350,000–1 million | ARCTURIS, INC. | SAINT LOUIS, MO | Midwest BankCentre |
| $1–2 million | ARCVISION, INC | SAINT LOUIS, MO | Carrollton Bank |
| $350,000–1 million | ARGOS FAMILY OFFICE, LLC | SAINT LOUIS, MO | Southern Bank |
| $2–5 million | ARIEL PREMIUM SUPPLY, INC. | SAINT LOUIS, MO | BMO Bank National Association |
| $150,000–350,000 | ARIES PARTY RENTAL COMPANY | SAINT LOUIS, MO | Together CU |
| $150,000–350,000 | ARISTOCRAT VALET, LLC | SAINT LOUIS, MO | U.S. Bank, National Association |
| $5–10 million | ARMSTRONG TEASDALE LLP | SAINT LOUIS, MO | Cass Commercial Bank |
| $150,000–350,000 | ARNOLD DISCOUNT FOODS, INC. | SAINT LOUIS, MO | Midwest BankCentre |
| $350,000–1 million | ARROW BOX COMPANY OF ST. LOUIS | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | ARTHRITIS CONSULTANTS, INC. | SAINT LOUIS, MO | Newtek Small Business Finance, Inc. |
| $2–5 million | ASCENT LLC | SAINT LOUIS, MO | PNC Bank, National Association |
| $150,000–350,000 | ASHBY ROAD INC | SAINT LOUIS, MO | Royal Banks of Missouri |
| $150,000–350,000 | ASPEN INDUSTRIES, INC | SAINT LOUIS, MO | Carrollton Bank |
| $150,000–350,000 | ASSOCIATED MANAGEMENT SERVICES, INC. | SAINT LOUIS, MO | Commercial Bank |
| $150,000–350,000 | ASSOCIATED REHABILITATION SERVICES, INC. | SAINT LOUIS, MO | First State Community Bank |
| $350,000–1 million | ASSUMPTION CATHOLIC CHURCH, MATTESE | SAINT LOUIS, MO | Midwest BankCentre |
| $1–2 million | ATIS ELEVATOR INSPECTIONS, LLC | SAINT LOUIS, MO | Enterprise Bank & Trust |
| $150,000–350,000 | ATLAS IRON WORKS | SAINT LOUIS, MO | Cass Commercial Bank |
| $350,000–1 million | ATLAS SUPPLY CO INC. | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | ATOMIC DUST LLC | SAINT LOUIS, MO | Commerce Bank |
| $350,000–1 million | ATREDIS PARTNERS | SAINT LOUIS, MO | PNC Bank, National Association |
| $150,000–350,000 | AUGUST PACKAGING INC | SAINT LOUIS, MO | The Central Trust Bank |
| $150,000–350,000 | AUNTIE MARGARET'S DAY CARE INC | SAINT LOUIS, MO | Carrollton Bank |
| $150,000–350,000 | AUSTIN A. LAYNE MORTUARY, INC. | SAINT LOUIS, MO | Lindell Bank & Trust Company |
| $350,000–1 million | AUTCO DISTRIBUTING, INC. | SAINT LOUIS, MO | UMB Bank, National Association |
| $350,000–1 million | AUTO BEAUTY SPECIALISTS, INC | SAINT LOUIS, MO | Royal Banks of Missouri |
| $150,000–350,000 | AUTO PLAZA BRECKENRIDGE | SAINT LOUIS, MO | Bank of Springfield |
| $1–2 million | AUTOHAUS WEST, INC. | SAINT LOUIS, MO | U.S. Bank, National Association |
| $150,000–350,000 | AUTOMATIC ICE SYSTEMS, INC. | SAINT LOUIS, MO | Enterprise Bank & Trust |
| $1–2 million | AUTOMATION AND CONTROL CONCEPTS INC | SAINT LOUIS, MO | First Mid Bank & Trust, National Association |
| $350,000–1 million | AVATARA, LLC | SAINT LOUIS, MO | Triad Bank |
| $150,000–350,000 | AVIK SERVICES, LLC | SAINT LOUIS, MO | Vibrant Credit Union |
| $350,000–1 million | B & K TUCKPOINTING CO. | SAINT LOUIS, MO | Commerce Bank |
| $150,000–350,000 | B & M TRANSPORTATION, LLC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | B & P CONSTRUCTION INC | SAINT LOUIS, MO | Cass Commercial Bank |
| $350,000–1 million | B H PARTNERS, LLC | SAINT LOUIS, MO | UMB Bank, National Association |
| $150,000–350,000 | B.C. MACDONALD & COMPANY | SAINT LOUIS, MO | Commerce Bank |
| $150,000–350,000 | B.E. SCAIFE PLUMBING COMPANY, INC. | SAINT LOUIS, MO | Midland States Bank |
| $350,000–1 million | BACHMAN MACHINE COMPANY | SAINT LOUIS, MO | The Central Trust Bank |
| $150,000–350,000 | BACTERIOSCAN INC | SAINT LOUIS, MO | Busey Bank |
| $350,000–1 million | BADE ROOFING | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | BAILEYS' RANGE | SAINT LOUIS, MO | Midwest Regional Bank |
| $1–2 million | BALKE BROWN TRANSWESTERN, INC. | SAINT LOUIS, MO | Enterprise Bank & Trust |
| $1–2 million | BALLAS ANESTHESIA, INC. | SAINT LOUIS, MO | Triad Bank |
| $150,000–350,000 | BALLAS DENTAL CARE LLC | SAINT LOUIS, MO | UMB Bank, National Association |
| $350,000–1 million | BALMORAL ASSOCIATES, LLC | SAINT LOUIS, MO | Midwest BankCentre |
| $150,000–350,000 | BALTO SOFTWARE, INC. | SAINT LOUIS, MO | Enterprise Bank & Trust |
| $2–5 million | BAM CONTRACTING, LLC | SAINT LOUIS, MO | Cass Commercial Bank |
| $2–5 million | BANDUCCI ENTERPRISES, INC. | SAINT LOUIS, MO | Cadence Bank |
| $150,000–350,000 | BANNER CONSTRUCTION COMPANY INC | SAINT LOUIS, MO | Midland States Bank |
| $150,000–350,000 | BANQUET ENTERPRISES INC | SAINT LOUIS, MO | Carrollton Bank |
| $350,000–1 million | BARETTA, INC. | SAINT LOUIS, MO | U.S. Bank, National Association |
| $350,000–1 million | BARON SPICES, INC. | SAINT LOUIS, MO | Triad Bank |
| $1–2 million | BATTERY HANDLING SYSTEMS | SAINT LOUIS, MO | Cass Commercial Bank |
| $150,000–350,000 | BAXTER FARMS AND NURSERIES, LLC | SAINT LOUIS, MO | Commerce Bank |
| $1–2 million | BAZAN PAINTING, LLC | SAINT LOUIS, MO | Montgomery Bank |
| $350,000–1 million | BBJF ENTERPRISES, INC. | SAINT LOUIS, MO | American Bank of Freedom |
| $150,000–350,000 | BBS SERVICES LLC | SAINT LOUIS, MO | Newtek Small Business Finance, Inc. |