| $150,000–350,000 | HENDRIX SERVICES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | HERITAGE HALL | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HERITAGE MANAGEMENT SERVICES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HERITAGE POINT SENIOR LIVING, LLC | OKLAHOMA CITY, OK | RCB Bank |
| $350,000–1 million | HESSEL HOLDING COMPANY LLC | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | HGC HOLDINGS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HGL CONSTRUCTION, INC | OKLAHOMA CITY, OK | Legacy Bank |
| $150,000–350,000 | HIDDEN TRAIL PROPERTIES | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HIGH CALIPER GROWING, INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | HIGH FIVE MEDIA GROUP, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HIGH-TECH-TRONICS, INC | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $350,000–1 million | HILL & COMPANY SERVICE, INC. | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | HILTGEN & BREWER PC | OKLAHOMA CITY, OK | Cross River Bank |
| $150,000–350,000 | HINKLE OIL AND GAS, INC. | OKLAHOMA CITY, OK | InterBank |
| $350,000–1 million | HINTON REFRIGERATION COMPANY | OKLAHOMA CITY, OK | Prosperity Bank |
| $350,000–1 million | HITECH ASSETS LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | HIXON CONSTRUCTION COMPANY LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | HKS ENERGY SOLUTIONS INC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | HMS, LLC | OKLAHOMA CITY, OK | Mabrey Bank |
| $150,000–350,000 | HOGAN DATA OPERATIONS LP | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | HOGAN PROPERTY COMPANY, L.L.C. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HOLLIE'S FLATIRON STEAKHOUSE, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HOME WET BAR, LLC | OKLAHOMA CITY, OK | The Bank of Kremlin |
| $150,000–350,000 | HOMETOWN NEURODIAGNOSTICS, LLC | OKLAHOMA CITY, OK | First Liberty Bank |
| $1–2 million | HOPE COMMUNITY SERVICES, INC. | OKLAHOMA CITY, OK | Watermark Bank |
| $150,000–350,000 | HOPE IS ALIVE MINISTRIES INC. | OKLAHOMA CITY, OK | CrossFirst Bank |
| $1–2 million | HORIZON CABLE SERVICE INC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $350,000–1 million | HORIZON HYDRAULICS LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HOSPITAL FOR SPECIAL SURGERY, LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | HOUSTON PERSONNEL SERVICE, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | HRJ PROPERTIES LLC | OKLAHOMA CITY, OK | Central Bank of Oklahoma |
| $150,000–350,000 | HSE ARCHITECTS, PLLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | HSPG & ASSOCIATES, PC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | HUDIBURG BUICK-GMC LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HUDIBURG SUBARU, LLC | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | HUGHES INDUSTRIES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HULL PLUMBING INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | HUNTER MECHANICAL & CONTROLS, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | HUNTER'S PRECISION RX, LLC | OKLAHOMA CITY, OK | First Liberty Bank |
| $150,000–350,000 | HUNTINGTON ENERGY USA INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | HUNTINGTON FINE JEWELERS INC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $1–2 million | HUNZICKER BROTHERS INC. | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $150,000–350,000 | HYDRONIC SYSTEMS INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | I-40 WINGS, LLC | OKLAHOMA CITY, OK | RCB Bank |
| $150,000–350,000 | I-44 WINGS LLC | OKLAHOMA CITY, OK | RCB Bank |
| $150,000–350,000 | I2E MANAGEMENT COMPANY, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | I2E, INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | ICE-MAKER SALES & SERVICES, INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $350,000–1 million | IDEAL FORD LLC OF OKLAHOMA | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | IGNITE MEDICAL RESORT OKC, LLC | OKLAHOMA CITY, OK | CIBC Bank USA |
| $150,000–350,000 | IGUANA MEXICAN GRILL LLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $5–10 million | IMAGENET CONSULTING LLC | OKLAHOMA CITY, OK | International Bank of Commerce |
| $350,000–1 million | IMMEDIATE CARE OF OKLAHOMA, L.L.C. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | IMPACT ENERGY OPERATING LLC | OKLAHOMA CITY, OK | COREBANK |
| $1–2 million | IMPERIUM UTILITY SERVICES LLC | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | IMPRESSIONS HOME HEALTH CARE, INC | OKLAHOMA CITY, OK | Comerica Bank |
| $350,000–1 million | IMPRESSIONS PRINTING AND COPYING SERVICES, INC. | OKLAHOMA CITY, OK | RCB Bank |
| $2–5 million | INDIGENOUS TECHNOLOGIES LLC | OKLAHOMA CITY, OK | Bank 7 |
| $150,000–350,000 | INDUSTRIAL COIL INC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | INDUSTRIAL MACHINE CO | OKLAHOMA CITY, OK | BOKF, National Association |
| $350,000–1 million | INDUSTRIAL RUBBER, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | INDUSTRIAL TRUCK EQUIPMENT, INC. | OKLAHOMA CITY, OK | RCB Bank |
| $150,000–350,000 | INDUSTRY LAND, LLC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | INFANT CRISIS SERVICES, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | INLIGHT RISK MANAGEMENT, LLC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $150,000–350,000 | INNOVA, LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $1–2 million | INNOVATIVE CONCRETE SOLUTIONS LLC | OKLAHOMA CITY, OK | Prime Bank |
| $350,000–1 million | INSIGHT CREATIVE GROUP, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | INSURANCE AGENCY OF MID-AMERICA INC. | OKLAHOMA CITY, OK | Valor Bank |
| $350,000–1 million | INSURED AIRCRAFT TITLE SERVICE LLC | OKLAHOMA CITY, OK | Bank of America, National Association |
| $150,000–350,000 | INTEGRAL DYNAMICS, INC. | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | INTEGRATED COMMUNICATIONS SYSTEMS INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | INTEGRATED FLUID SYSTEMS | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | INTEGRITY INVESTMENT GROUP | OKLAHOMA CITY, OK | Tulsa FCU |
| $350,000–1 million | INTERNATIONAL PIPE & SUPPLY, LLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $350,000–1 million | INTERSTATE TRUCKERS LTD. ASSISTANCE ADMINISTRATION | OKLAHOMA CITY, OK | First Liberty Bank |
| $150,000–350,000 | IPS RESEARCH COMPANY | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | IRIS HILLS ENTERPRISES, INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | ISOTEK LABORATORIES, LLC | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $150,000–350,000 | J CURRY ELECTRIC COMPANY, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | J & B HEAVY HAUL INC | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $350,000–1 million | J & E SUPPLY & FASTENER CO., INC. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | J & R EQUIPMENT LLC | OKLAHOMA CITY, OK | The First State Bank |
| $1–2 million | J A OIL FIELD MANUFACTURING IN | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | J AND L ACQUISITIONS, LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | J&J CARDS INC. | OKLAHOMA CITY, OK | The First State Bank |
| $150,000–350,000 | J-MAR DISTRIBUTORS INC | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $150,000–350,000 | J. CHRIS HUMMEL MC PC | OKLAHOMA CITY, OK | BOKF, National Association |
| $350,000–1 million | JACK ONOFRIO DOG SHOWS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | JACK PRATT SCREEN-AD CO. | OKLAHOMA CITY, OK | First Security Bank and Trust Company |
| $150,000–350,000 | JACKFORK LAND, INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $1–2 million | JACKIE COOPER IMPORTS, LLC | OKLAHOMA CITY, OK | International Bank of Commerce |
| $350,000–1 million | JACKSON MECHANICAL SERVICE, INC. | OKLAHOMA CITY, OK | Prosperity Bank |
| $350,000–1 million | JAH REALTY LP | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | JAMES R MINNIX, CPA, INC., PC | OKLAHOMA CITY, OK | Bank of Hydro |
| $150,000–350,000 | JANUARY ENVIRONMENTAL SERVICES INC | OKLAHOMA CITY, OK | Armstrong Bank |
| $350,000–1 million | JANUARY TRANSPORT, INC | OKLAHOMA CITY, OK | Armstrong Bank |
| $350,000–1 million | JASPER SUPPLY, LLC | OKLAHOMA CITY, OK | Equity Bank |
| $350,000–1 million | JATCO INC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | JD BURSE TRUCKING LLC | OKLAHOMA CITY, OK | Kabbage, Inc. |