| $2–5 million | RMA GROUP | RANCHO CUCAMONGA, CA | American Business Bank |
| $350,000–1 million | RMP SAFETY SERVICES INC | RANCHO CUCAMONGA, CA | Customers Bank |
| $150,000–350,000 | ROAD READY REGISTRATION | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | ROCKY'S AUTO BODY, INC. | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $1–2 million | ROLYS TRUCKING INC | RANCHO CUCAMONGA, CA | Bank of the West |
| $350,000–1 million | ROMERO'S ENGINEERING INC. DBA AMERICAN TURNKEY FABRICATORS | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | ROXI FOOD SERVICES | RANCHO CUCAMONGA, CA | Bank of America, National Association |
| $150,000–350,000 | RYAN CONTRACTORS, INC. | RANCHO CUCAMONGA, CA | American Business Bank |
| $150,000–350,000 | S. KICK AUTOMOTIVE INC. | RANCHO CUCAMONGA, CA | Chino Commercial Bank, N.A. |
| $150,000–350,000 | SAGAR GROUP INC | RANCHO CUCAMONGA, CA | Bank of America, National Association |
| $150,000–350,000 | SAN ANTONIO RADIOLOGICAL MEDICAL GROUP | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | SANTA LAKEWOOD INC | RANCHO CUCAMONGA, CA | Zions Bank, A Division of |
| $5–10 million | SAS RESTAURANT VENTURES INC. | RANCHO CUCAMONGA, CA | Zions Bank, A Division of |
| $150,000–350,000 | SBM FOOD CORPORATION | RANCHO CUCAMONGA, CA | Signature Bank |
| $150,000–350,000 | SCHAEF AIR, INC | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | SCOTT T JACKSON DBA ALL-STAR PRECISION | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $350,000–1 million | SECARD POOLS | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | SHENNEL TRADING GROUP | RANCHO CUCAMONGA, CA | Cathay Bank |
| $150,000–350,000 | SIGNWORLD AMERICA, INC. | RANCHO CUCAMONGA, CA | East West Bank |
| $350,000–1 million | SJD & B INC | RANCHO CUCAMONGA, CA | Bank of Hope |
| $350,000–1 million | SKIN PERFECT RANCHO CUCAMONGA INC. | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | SLKE ENTERTAINMENT INC. | RANCHO CUCAMONGA, CA | Banner Bank |
| $350,000–1 million | SOLID GROUND BRETHREN IN CHRIST CHURCH, INC. | RANCHO CUCAMONGA, CA | America's Christian CU |
| $350,000–1 million | SOUTH BAY INTERNATIONAL | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $350,000–1 million | SOUTH STAR LOGISTICS, INC. | RANCHO CUCAMONGA, CA | American Business Bank |
| $150,000–350,000 | SPA GROUP | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | SPECIALIZED CARE FOSTER FAMILY AGENCY | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $150,000–350,000 | SPECIALTY PIPING SERVICES, INC. | RANCHO CUCAMONGA, CA | Intuit Financing Inc. |
| $350,000–1 million | SST TRANSPORTATION INC | RANCHO CUCAMONGA, CA | Bank of America, National Association |
| $150,000–350,000 | STEER'N STEIN CUCAMONGA INC | RANCHO CUCAMONGA, CA | Bank of America, National Association |
| $150,000–350,000 | SUNLORD LEISURE PRODUCTS, INC | RANCHO CUCAMONGA, CA | East West Bank |
| $1–2 million | SUNLUX | RANCHO CUCAMONGA, CA | Customers Bank |
| $150,000–350,000 | SUNSATIONS INTERNATIONAL INC. | RANCHO CUCAMONGA, CA | First-Citizens Bank & Trust Company |
| $150,000–350,000 | SUNSET VISTA DESIGNS COMPANY, INC. | RANCHO CUCAMONGA, CA | Bank of the West |
| $350,000–1 million | SUPERIOR ELECTRICAL & PLUMBING, INC | RANCHO CUCAMONGA, CA | Preferred Bank |
| $2–5 million | SUPERIOR ELECTRICAL, MECHANICAL, AND PLUMBING, INC. | RANCHO CUCAMONGA, CA | Preferred Bank |
| $2–5 million | SUPERIOR TANK COMPANY, INC. | RANCHO CUCAMONGA, CA | American Business Bank |
| $150,000–350,000 | SUSHI MARTINI | RANCHO CUCAMONGA, CA | Hanmi Bank |
| $150,000–350,000 | SWENSON ACCOUNTANCY CORPORATION | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $350,000–1 million | T&R LUMBER COMPANY, INC. | RANCHO CUCAMONGA, CA | Bank of the West |
| $2–5 million | T.R.L. SYSTEMS, INCORPORATED | RANCHO CUCAMONGA, CA | Fifth Third Bank |
| $350,000–1 million | TACI ENERGY SOLUTIONS INC. | RANCHO CUCAMONGA, CA | Citibank, N.A. |
| $350,000–1 million | TAKLAN, INC. | RANCHO CUCAMONGA, CA | Pacific Western Bank |
| $150,000–350,000 | TAMERICA PRODUCTS, INC | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $150,000–350,000 | TDA MAGNETICS, LLC | RANCHO CUCAMONGA, CA | Bank of Hope |
| $350,000–1 million | TDI REFRIGERATION AND AIR CONDITIONING D BA REEDY MECHANICAL | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $350,000–1 million | TEAM PHYSICAL THERAPY, INC | RANCHO CUCAMONGA, CA | First National Bank and Trust Company of Ardmore |
| $350,000–1 million | TEKTON HOSPITALITY LLC | RANCHO CUCAMONGA, CA | City National Bank |
| $150,000–350,000 | THE BIG SPICY CORPORATION | RANCHO CUCAMONGA, CA | Signature Bank |
| $150,000–350,000 | THE ELEVATOR COMPANY | RANCHO CUCAMONGA, CA | Bank of the West |
| $150,000–350,000 | THE FLIPSIDE CHURCH | RANCHO CUCAMONGA, CA | Greater Nevada CU |
| $350,000–1 million | THE FROZEN BEAN | RANCHO CUCAMONGA, CA | Bank of America, National Association |
| $150,000–350,000 | THE MYERS LAW GROUP, PROF. CORP. | RANCHO CUCAMONGA, CA | Partners Bank of California |
| $350,000–1 million | THOMPSON INDUSTRIAL SUPPLY, LLC | RANCHO CUCAMONGA, CA | MUFG Union Bank, National Association |
| $150,000–350,000 | THUY TM NGUYEN MD INC | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | TIBURON TELECOMMUNICATIONS, INC. | RANCHO CUCAMONGA, CA | Cross River Bank |
| $150,000–350,000 | TINKER GLASS CONTRACTORS, INC. | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $1–2 million | TITANIUM LLC | RANCHO CUCAMONGA, CA | First Utah Bank |
| $150,000–350,000 | TLC CONTENTS RESTORATION INC | RANCHO CUCAMONGA, CA | Bank of the West |
| $150,000–350,000 | TRI-TECH METALS INC. | RANCHO CUCAMONGA, CA | Banner Bank |
| $150,000–350,000 | TRIOPTICS INC. | RANCHO CUCAMONGA, CA | Bank of the West |
| $150,000–350,000 | TTSI ELECTRIC, INC. | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | TURNER PACKAGING SOLUTIONS, INC. | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $1–2 million | UC ACADEMY INTERNATIONAL, INC | RANCHO CUCAMONGA, CA | America's Christian CU |
| $350,000–1 million | VANGUARD TOOL & MFG. CO., INC. | RANCHO CUCAMONGA, CA | American Business Bank |
| $350,000–1 million | VANURA HOMEHEALTH SERVICES INC. | RANCHO CUCAMONGA, CA | Chino Commercial Bank, N.A. |
| $150,000–350,000 | VEGA INDUSTRIES, INC. | RANCHO CUCAMONGA, CA | Bank of the West |
| $350,000–1 million | VEHICLE ACCESSORY CENTER, LLC | RANCHO CUCAMONGA, CA | Ally Bank |
| $350,000–1 million | VIDO SAMARZICH, INC | RANCHO CUCAMONGA, CA | Bank of the West |
| $150,000–350,000 | VIET D. TA MD & TIFFANY L. QUAN MD, MEDI | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | VMG TRANSPORTATION GROUP | RANCHO CUCAMONGA, CA | MetaBank, National Association |
| $1–2 million | VOCATIONAL IMPROVEMENT PROGRAM, INC | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $350,000–1 million | W.S. BALKHI CORPORATION | RANCHO CUCAMONGA, CA | American Express National Bank |
| $350,000–1 million | W.S.BALKHI ENTERPRISES | RANCHO CUCAMONGA, CA | American Express National Bank |
| $150,000–350,000 | WABI SABI JAPANESE RESTAURANT, LLC | RANCHO CUCAMONGA, CA | East West Bank |
| $1–2 million | WCCS, INC. | RANCHO CUCAMONGA, CA | Bank of the West |
| $150,000–350,000 | WEST AVIATION SERVICES - SAN DIEGO | RANCHO CUCAMONGA, CA | Pacific Western Bank |
| $150,000–350,000 | WEST HARRINGTON CONSTRUCTION CO INC | RANCHO CUCAMONGA, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | WIZARD RESTORATIONS, INC. | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $2–5 million | WOLF LANG CHRISTOPHER ARCHITECTS, INC. | RANCHO CUCAMONGA, CA | Citizens Business Bank |
| $150,000–350,000 | WORLDCRAFT LOGISTICS LLC | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | WORLDWIDE BUSINESS VENTURES CALIFORNIA, INC. | RANCHO CUCAMONGA, CA | Pacific Enterprise Bank |
| $150,000–350,000 | WORLDWIDE BUSINESS VENTURES, INC. | RANCHO CUCAMONGA, CA | Pacific Enterprise Bank |
| $150,000–350,000 | YS & SON COMPANY | RANCHO CUCAMONGA, CA | Hanmi Bank |
| $150,000–350,000 | ZUHA HOMES, INC. | RANCHO CUCAMONGA, CA | JPMorgan Chase Bank, National Association |