| $150,000–350,000 | A & N OF RIVER CITY, INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | AERON ADVANCED MANUFACTURING, L.L.C. | MASON CITY, IA | First National Bank of Muscatine |
| $150,000–350,000 | ALLIED PURCHASING COMPANY | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | BLAZEK ELECTRIC, INC. | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | BRAKKE IMPLEMENT, INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | BROWN HOSPITALITY CORP. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | CENTRAL PARK DENTISTRY, P.C. | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | CHARLEY BROWN COMMUNITY DAYCARE | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | COMMUNITY MOTORS NORTH, INC | MASON CITY, IA | U.S. Bank, National Association |
| $150,000–350,000 | D & D SALES, INC | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | DECKER SPORTING GOODS, INC. | MASON CITY, IA | NSB Bank |
| $350,000–1 million | DENTAL CENTER OF NORTH IOWA, L.C. | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | DIMENSION GRAPHICS, INC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | ELOR INC. | MASON CITY, IA | Two Rivers Bank & Trust |
| $150,000–350,000 | FIAHC, INC. | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | FMCC | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | GOLDEN GRAIN ENERGY, LLC | MASON CITY, IA | CUSB Bank |
| $2–5 million | GOOD SHEPHERD GERIATRIC CENTER INC | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | H.C. DETERMAN ELECTRIC COMPANY | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | HEARING ASSOCIATES, P.C. | MASON CITY, IA | First Citizens Bank |
| $1–2 million | HEARTLAND ASPHALT INC | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | HEINY, MCMANIGAL, DUFFY, STAMBAUGH & ANDERSON PLC | MASON CITY, IA | First Citizens Bank |
| $1–2 million | HENKEL CONSTRUCTION COMPANY | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | HOGAN-BREMER-MOORE COLONIAL CHAPELS | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | HOSMER AUTOMOTIVE, INC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | HOSMER CARS, INC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | HUBER SUPPLY CO. INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | IOWA ODD FELLOWS HOME | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | KABRICK DISTRIBUTING COMPANY OF MASON CITY, INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | LAS PALMAS MEXICAN RESTAURANT INC | MASON CITY, IA | Bank Midwest |
| $150,000–350,000 | LEGACY TRANSPORTATION, INC | MASON CITY, IA | First Security Bank & Trust Company |
| $150,000–350,000 | LINAHON ELECTRIC, INC. | MASON CITY, IA | First Citizens Bank |
| $2–5 million | MASON CITY CLINIC, PC | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | MASON CITY FAMILY YMCA | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | MASON CITY MOTOR COMPANY LLC | MASON CITY, IA | Alerus Financial, National Association |
| $150,000–350,000 | MASON CITY POWER SPORTS, INC. | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | MASON CITY RECYCLING CENTER | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | MCKINESS EXCAVATING, INC | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | MD PRODUCTS AND SOLUTIONS INC | MASON CITY, IA | Northwest Bank |
| $150,000–350,000 | MECHANICAL AIR SYSTEMS COMPANY | MASON CITY, IA | Farmers State Bank |
| $1–2 million | METALCRAFT INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | MIDWEST CONSTRUCTION AND SUPPLY INC | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | MIDWEST ROOFING COMPANY | MASON CITY, IA | Two Rivers Bank & Trust |
| $150,000–350,000 | NEUROSURGERY OF NORTH IOWA, P.C. | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | NEWMAN CATHOLIC SCHOOL SYSTEM | MASON CITY, IA | BOKF, National Association |
| $150,000–350,000 | NIAD CENTER FOR HUMAN DEVELOPMENT | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | NISS EXCAVATION, INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | NORTH IOWA ANESTHESIA ASSOCIATES, PC | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | NORTH IOWA EYE CLINIC P.C. | MASON CITY, IA | First Citizens Bank |
| $350,000–1 million | NORTH IOWA TRANSITION AND EMPLOYMENT SERVICES, INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | NORTH IOWA YOUTH FOR CHRIST, INC. | MASON CITY, IA | First Citizens Bank |
| $1–2 million | NUTRIQUEST, LLC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | PRAIRIE RIDGE INTEGRATED BEHAVIORAL HEALTHCARE | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | R. L. RYAN COMPANY | MASON CITY, IA | NSB Bank |
| $350,000–1 million | RADIOLOGISTS OF NORTH IOWA PC | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | RVV ENTERPRISE, LLC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | SCHUKEI CHEVROLET, INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | SPRING HARBOR LLC | MASON CITY, IA | First Security Bank & Trust Company |
| $2–5 million | STONEY CREEK HOSPITALITY CORP | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | TEGGATZ ENTERPRISES, INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $350,000–1 million | TGM PIZZA, INC. | MASON CITY, IA | Premier Bank Rochester |
| $350,000–1 million | THE NETTLETON DENTAL GROUP | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | TURNING LEAF COUNSELING, INC | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $150,000–350,000 | WEBER & OTTO FAMILY DENTISTRY | MASON CITY, IA | NSB Bank |
| $1–2 million | WHKS & CO. INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | WILLOWBROOK FOODS, INC. | MASON CITY, IA | First Citizens Bank |
| $150,000–350,000 | WINDOW WORLD OF MASON CITY, INC. | MASON CITY, IA | Clear Lake Bank & Trust Company |
| $2–5 million | WOODHARBOR MOLDING & MILLWORKS, INC | MASON CITY, IA | NSB Bank |
| $150,000–350,000 | YOUNG CONSTRUCTION OF NORTH IOWA, INC. | MASON CITY, IA | NSB Bank |