| $2–5 million | WESTMINSTER AUTOMOTIVE GROUP, INC. | WESTMINSTER, CA | Comerica Bank |
| $150,000–350,000 | WESTMINSTER VILLA, INC. | GARDEN GROVE, CA | Comerica Bank |
| $350,000–1 million | WET SOUNDS INC. | HOUSTON, TX | Comerica Bank |
| $350,000–1 million | WF WHELAN CO | CANTON, MI | Comerica Bank |
| $1–2 million | WG CONSULTING LLC | HOUSTON, TX | Comerica Bank |
| $150,000–350,000 | WGVS USA, LLC | SAN ANTONIO, TX | Comerica Bank |
| $150,000–350,000 | WH HOTEL, LLC | LOS ANGELES, CA | Comerica Bank |
| $150,000–350,000 | WHEELER & ASSOCIATES, INC. | HOUSTON, TX | Comerica Bank |
| $1–2 million | WHITE LABS | SAN DIEGO, CA | Comerica Bank |
| $150,000–350,000 | WHITE LABS- KITCHEN, BREWERY & TAP, INC | SAN DIEGO, CA | Comerica Bank |
| $150,000–350,000 | WHITE ROCK NORTH SCHOOLS, INC. | DALLAS, TX | Comerica Bank |
| $150,000–350,000 | WHITNEYBELL PERRY INC | PHOENIX, AZ | Comerica Bank |
| $350,000–1 million | WHN, INC. | WOODLAND HILLS, CA | Comerica Bank |
| $350,000–1 million | WHOLESALE HEATING SUPPLY CO/ | PONTIAC, MI | Comerica Bank |
| $150,000–350,000 | WHOLESALE WHEEL & TIRE LLC | CARROLLTON, TX | Comerica Bank |
| $2–5 million | WICO METAL PRODUCTS COMPANY | WARREN, MI | Comerica Bank |
| $350,000–1 million | WILBRO MANAGEMENT SERVICE INC | DETROIT, MI | Comerica Bank |
| $150,000–350,000 | WILD SALSA 1 LLC | DALLAS, TX | Comerica Bank |
| $150,000–350,000 | WILDER ENTERPRISES, INC | AUSTIN, TX | Comerica Bank |
| $1–2 million | WILDFLOWER HEALTH, INC. | SAN FRANCISCO, CA | Comerica Bank |
| $150,000–350,000 | WILLIAMS AND RIBB, LLP | LONG BEACH, CA | Comerica Bank |
| $2–5 million | WIMSATT BUILDING MATERIALS CORPORATION | WAYNE, MI | Comerica Bank |
| $2–5 million | WINCORE WINDOW COMPANY LLC | PARKERSBURG, WV | Comerica Bank |
| $1–2 million | WIND COMPOSITE SERVICES GROUP, LLC | HOUSTON, TX | Comerica Bank |
| $350,000–1 million | WINE HOOLIGANS, LLC | SANTA ROSA, CA | Comerica Bank |
| $150,000–350,000 | WINTER SUN MANAGEMENT, INC. | FARMERS BRANCH, TX | Comerica Bank |
| $150,000–350,000 | WIRT DESIGN GROUP, INC. | LOS ANGELES, CA | Comerica Bank |
| $150,000–350,000 | WITT MECHANICAL, INC. | WIXOM, MI | Comerica Bank |
| $350,000–1 million | WITTMEIER, INC. | CHICO, CA | Comerica Bank |
| $350,000–1 million | WLS LIGHTING SYSTEMS, INC. | FORT WORTH, TX | Comerica Bank |
| $1–2 million | WM. CROOK FIRE PROTECTION CO. | ROYAL OAK, MI | Comerica Bank |
| $1–2 million | WM. R. CURTIS, INC. | COMMERCE TOWNSHIP, MI | Comerica Bank |
| $150,000–350,000 | WNW, INCORPORATED | BLOOMFIELD, MI | Comerica Bank |
| $150,000–350,000 | WOHLER TECHNOLOGIES, INC | HAYWARD, CA | Comerica Bank |
| $350,000–1 million | WOLFE AUTOMOTIVE GROUP. L.L.C. | KANSAS CITY, MO | Comerica Bank |
| $150,000–350,000 | WOLFF URBAN MANAGEMENT, INC. | LOS ANGELES, CA | Comerica Bank |
| $150,000–350,000 | WOLTCOM, INC. | HOLLISTER, CA | Comerica Bank |
| $350,000–1 million | WOLVERINE BRONZE CORPORATION | ROSEVILLE, MI | Comerica Bank |
| $350,000–1 million | WOLVERINE GLASS PRODUCTS, INC. | WYOMING, MI | Comerica Bank |
| $2–5 million | WOLVERINE HUMAN SERVICES | GROSSE POINTE PARK, MI | Comerica Bank |
| $1–2 million | WOLVERINE MAILING, PACKAGING, WAREHOUSE, INC. | DETROIT, MI | Comerica Bank |
| $1–2 million | WOLVERINE PLATING CORPORATION | ROSEVILLE, MI | Comerica Bank |
| $350,000–1 million | WOODBERRY WINE, LLC | TROY, MI | Comerica Bank |
| $1–2 million | WOODLAND DIRECT, INC. | AUBURN HILLS, MI | Comerica Bank |
| $350,000–1 million | WOODLAND SCHOOL | PORTOLA VALLEY, CA | Comerica Bank |
| $150,000–350,000 | WOODWARD AVENUE MARKET LLC | DETROIT, MI | Comerica Bank |
| $150,000–350,000 | WORKBLADES, INC. | WARREN, MI | Comerica Bank |
| $5–10 million | WORKFORCE STRATEGIES, INC. | KALAMAZOO, MI | Comerica Bank |
| $1–2 million | WORLDTEK INDUSTRIES, LLC | ROMULUS, MI | Comerica Bank |
| $350,000–1 million | WORLDWIDE ENVIRONMENTAL PRODUCTS, INC. | BREA, CA | Comerica Bank |
| $350,000–1 million | WOZU EDUCATION HOLDINGS LLC | SCOTTSDALE, AZ | Comerica Bank |
| $350,000–1 million | WSI PBG, LLC | EAST JORDAN, MI | Comerica Bank |
| $350,000–1 million | WTP AMERICA LLC | SANTA MONICA, CA | Comerica Bank |
| $350,000–1 million | WURL, INC. | PALO ALTO, CA | Comerica Bank |
| $350,000–1 million | WYNG, INC. | NEW YORK, NY | Comerica Bank |
| $350,000–1 million | X-BAR AUTOMATION, INC. | TROY, MI | Comerica Bank |
| $350,000–1 million | XAP CORPORATION | CULVER CITY, CA | Comerica Bank |
| $350,000–1 million | XCAST LABS, INC. | LOS ANGELES, CA | Comerica Bank |
| $1–2 million | XEEVA, INC | MADISON HEIGHTS, MI | Comerica Bank |
| $150,000–350,000 | XOCHIMILCO, INC. | DETROIT, MI | Comerica Bank |
| $1–2 million | Y.M.I JEANSWEAR INC. | LOS ANGELES, CA | Comerica Bank |
| $150,000–350,000 | YAMATO INTERNATIONAL CORPORATION | WOODHAVEN, MI | Comerica Bank |
| $5–10 million | YAPSTONE HOLDINGS, INC. | WALNUT CREEK, CA | Comerica Bank |
| $350,000–1 million | YAROCH SENIOR SERVICES 408, LLC | WATERFORD, MI | Comerica Bank |
| $2–5 million | YATES INDUSTRIES INC. | SAINT CLAIR SHORES, MI | Comerica Bank |
| $350,000–1 million | YES SIR E BOB INC | MICHIGAN CENTER, MI | Comerica Bank |
| $1–2 million | YIELDMO INC | NEW YORK, NY | Comerica Bank |
| $150,000–350,000 | YOUNG & YOUNG ARCHITECTS, INC., P.C. | BLOOMFIELD HILLS, MI | Comerica Bank |
| $2–5 million | YOUNGER MFG. CO. | TORRANCE, CA | Comerica Bank |
| $150,000–350,000 | YOUNGSUN & ESSEN CORPORATION | SUGAR LAND, TX | Comerica Bank |
| $1–2 million | YTEL, INC. | FOOTHILL RANCH, CA | Comerica Bank |
| $2–5 million | YU JEOUNG | SAINT GEORGE, UT | Comerica Bank |
| $350,000–1 million | YUDO, INC. | LIVONIA, MI | Comerica Bank |
| $2–5 million | YUMI ICE CREAM CO. INC. | THE COLONY, TX | Comerica Bank |
| $150,000–350,000 | ZACHARY'S RESTAURANT, INC. | SANTA CRUZ, CA | Comerica Bank |
| $1–2 million | ZACK HOLDINGS, INC. | WARREN, MI | Comerica Bank |
| $350,000–1 million | ZAG MOTORS, LLC | BROWNSVILLE, TX | Comerica Bank |
| $150,000–350,000 | ZAIN ENTERPRISES, INC. | FRASER, MI | Comerica Bank |
| $350,000–1 million | ZALONI INC. | RESEARCH TRIANGLE PARK, NC | Comerica Bank |
| $350,000–1 million | ZAMLER, SHIFFMAN AND KARFIS, PC | SOUTHFIELD, MI | Comerica Bank |
| $1–2 million | ZAMORA AUTOMOTIVE, INC. | MESA, AZ | Comerica Bank |
| $350,000–1 million | ZAMORA TEMPE, LLC | TEMPE, AZ | Comerica Bank |
| $350,000–1 million | ZAMPTECH SUB L.L.C. | BEND, OR | Comerica Bank |
| $150,000–350,000 | ZCAR, INC. | PRESCOTT VALLEY, AZ | Comerica Bank |
| $150,000–350,000 | ZEDAN DENTAL LABORATORY, INC. | FARMINGTON HILLS, MI | Comerica Bank |
| $150,000–350,000 | ZEDASOFT, INC. | FORT WORTH, TX | Comerica Bank |
| $1–2 million | ZEEL NETWORKS, INC | NEW YORK, NY | Comerica Bank |
| $2–5 million | ZEELAND LUMBER HOLDINGS, LLC | ZEELAND, MI | Comerica Bank |
| $350,000–1 million | ZEIDMAN'S LOAN OFFICE, INC. | DETROIT, MI | Comerica Bank |
| $150,000–350,000 | ZELMANSKI, DANNER & FIORITTO, PLLC | PLYMOUTH, MI | Comerica Bank |
| $1–2 million | ZENDRIVE IN. | SAN FRANCISCO, CA | Comerica Bank |
| $150,000–350,000 | ZENITH INFORMATION SYSTEMS, INC. | TARZANA, CA | Comerica Bank |
| $1–2 million | ZENPUT INC | SAN FRANCISCO, CA | Comerica Bank |
| $2–5 million | ZEREP MANAGEMENT CORPORATION | CITY OF INDUSTRY, CA | Comerica Bank |
| $150,000–350,000 | ZILKS PLUS RESOURCES LLC | AUSTIN, TX | Comerica Bank |
| $2–5 million | ZIM INDUSTRIES, INC | FRESNO, CA | Comerica Bank |
| $150,000–350,000 | ZIMMER MEDIZINSYSTEMS CORPORATION | IRVINE, CA | Comerica Bank |
| $350,000–1 million | ZINDLER SERVICE CO., INC. | HOUSTON, TX | Comerica Bank |
| $350,000–1 million | ZYSTON, LLC | DALLAS, TX | Comerica Bank |