| Hackettstown, NJ | MARS, INCORPORATED | 16,138 | 13 | 15,921 |
| Marshfield, WI | MARSHFIELD CLINIC HEALTH SYSTEM, INC. | 8,221 | 6 | 8,221 |
| Wichita, KS | MARTIN K. EBY CONSTRUCTION CO., INC. | 251 | 4 | 143 |
| Los Angeles, CA | MARTIN LUTHER KING, JR. LOS ANGELES MLK - LA HEALTHCARE CORPORATION | 1,409 | 8 | 1,409 |
| Wilmington, DE | MARTINELLI HOLDINGS LLC DBA TODAY MEDIA, INC. | 90 | 4 | 109 |
| Washington, DC | MARY'S CENTER FOR MATERNAL AND CHILD CARE | 733 | 5 | 723 |
| Herndon, VA | MARYLAND AND VIRGINIA MILK PRODUCER COOPERATIVE ASSOCIATION, INC. | 709 | 3 | 709 |
| Saint Louis, MO | MARYVILLE UNIVERSITY OF ST. LOUIS | 427 | 3 | 427 |
| Mashantucket, CT | MASHANTUCKET PEQUOT TRIBE | 3,714 | 1 | 3,714 |
| Irvine, CA | MASIMO | 1,321 | 10 | 1,638 |
| Havana, IL | MASON DISTRICT HOSPITAL | 0 | 3 | 141 |
| Braintree, MA | MASSACHUSETTS EMPLOYERS/SEIU LOCAL 888 TRUST FUND | 477 | 3 | 80 |
| Boston, MA | MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS | 756 | 7 | 741 |
| Moon Township, PA | MASTECH DIGITAL | 615 | 6 | 615 |
| Crossville, TN | MASTERCORP, INC. | 3,309 | 3 | 3,309 |
| Dallas, TX | MATCH GROUP, INC. | 1,593 | 9 | 2,550 |
| Philadelphia, PA | MATERNITY CARE COALITION | 162 | 2 | 162 |
| Peapack, NJ | MATHENY MEDICAL & EDUCATIONAL CENTER | 644 | 13 | — |
| Seneca, PA | MATRIC LIMITED | 330 | 7 | — |
| Greenwood Village, CO | MATRIX PROVIDERS, INC. | 639 | 8 | 625 |
| Walnut Creek, CA | MATSON, INC. | 2,743 | 14 | 2,743 |
| Peoria, IL | MAUI JIM, INC. | 620 | 5 | 624 |
| Grapevine, TX | MAXUM PETROLEUM, INC. | 699 | 4 | 699 |
| Dallas, TX | MAYFAIR MANAGEMENT GROUP LP | 164 | 5 | 389 |
| Cincinnati, OH | MAYFIELD CLINIC, INC. | 179 | 3 | 179 |
| Mendota Heights, MN | MAYFLOWER DISTRIBUTING CO., INC. | 172 | 4 | 172 |
| Sunrise, FL | MAYORS JEWELERS INC | 213 | 9 | 213 |
| Irvine, CA | MAZDA MOTOR OF AMERICA, INC., DBA MAZDA NORTH AMERICAN OPERATIONS | 960 | 10 | 958 |
| Philadelphia, PA | MAZZONI CENTER | 114 | 5 | 114 |
| East Granby, CT | MB AEROSPACE HOLDINGS INC. | 259 | 4 | 259 |
| Norwalk, CT | MBI, INC. | 264 | 2 | 332 |
| Hailey, ID | MBS OPCO LLC | 90 | 5 | 90 |
| Columbia, MO | MBS TEXTBOOK EXCHANGE, LLC | 404 | 3 | 14 |
| Philadelphia, PA | MCCABE, WEISBERG & CONWAY, LLC | 84 | 6 | 84 |
| Addison, IL | MCCANN INDUSTRIES INC | 116 | 3 | 116 |
| Burlington, NJ | MCCOLLISTER'S TRANSPORTATION SYSTEMS INC | 284 | 4 | 356 |
| San Juan, PR | MCCONNELL VALDES LLC | 149 | 5 | 212 |
| Rockville, MD | MCCORMICK PAINT WORKS COMPANY | 106 | 20 | 122 |
| San Marcos, TX | MCCOY'S | 2,551 | 5 | 2,839 |
| Chicago, IL | MCDONALD'S CORPORATION | 51,933 | 14 | 51,933 |
| Morristown, NJ | MCELROY, DEUTSCH, MULVANEY & CARPENTER, LLP | 203 | 9 | 201 |
| Ames, IA | MCFARLAND CLINIC PC | 1,369 | 5 | 910 |
| Livingston, NJ | MCGIVNEY KLUGER CLARK & INTOCCIA, P.C. | 133 | 2 | 133 |
| Roseville, MN | MCGOUGH CONSTRUCTION CO, LLC | 446 | 13 | 562 |
| Livermore, CA | MCGRATH RENTCORP | 1,158 | 14 | 1,158 |
| Cullman, AL | MCGRIFF INDUSTRIES, INC. | 389 | 5 | 389 |
| Avery Island, LA | MCILHENNY COMPANY | 252 | 2 | 266 |
| Atlanta, GA | MCKENNEYS INC | 491 | 4 | 605 |
| Irving, TX | MCKESSON CORPORATION - DELAWARE | 33,036 | 17 | 17,405 |
| Ann Arbor, MI | MCKINLEY COMPANIES, LLC | 280 | 10 | 549 |
| Seattle, WA | MCKINLEY IRVIN, PLLC | 111 | 6 | 111 |
| Minneapolis, MN | MCLAUGHLIN GORMLEY KING COMPANY | 148 | 4 | 148 |
| Florence, SC | MCLEOD HEALTH | 5,615 | 3 | 5,615 |
| Tampa, FL | MCNICHOLS COMPANY | 293 | 3 | 293 |
| Birmingham, AL | MCWANE INC | 5,877 | 16 | 292 |
| Costa Mesa, CA | MDM SERVICES CORPORATION | 119 | 8 | 115 |
| Boca Raton, FL | MDVIP, LLC | 425 | 6 | 425 |
| Waipahu, HI | MEADOW GOLD DAIRIES HAWAII | 177 | 5 | 146 |
| Denver, CO | MEDIANEWS GROUP, INC. | 2,086 | 13 | 2,079 |
| Hallowell, ME | MEDICAL CARE DEVELOPMENT, INC. | 126 | 12 | 126 |
| Vancouver, WA | MEDICAL MANAGEMENT INTERNATIONAL, INC. | 18,612 | 10 | 16,438 |
| Lexington, KY | MEDICAL REHABILITATION CENTERS, LLC DBA EXCEPTIONAL LIVING CENTERS | 769 | 7 | 1,184 |
| Omaha, NE | MEDICAL SOLUTIONS LLC | 15,170 | 7 | 15,170 |
| Lake St. Louis, MO | MEDICAL TRANSPORTATION MANAGEMENT, INC. | 3,500 | 6 | 3,500 |
| Atlanta, GA | MEDICRAFT, INC. | 127 | 7 | 127 |
| Windham, NH | MEDICUS HEALTHCARE SOLUTIONS, LLC | 343 | 7 | 343 |
| Lombard, IL | MEDIX STAFFING SOLUTIONS, LLC | 929 | 4 | 573 |
| Elgin, IL | MEDMIX US HOLDING, INC. | 137 | 5 | 137 |
| Conshohocken, PA | MEDRISK, LLC | 1,185 | 7 | 1,185 |
| Atlanta, GA | MEDZED LLC | 300 | 9 | 300 |
| Auburn Hills, MI | MEGALODON MIDCO LLC | 852 | 11 | 1,018 |
| Hazelwood, MO | MEH, INC | 2,510 | 11 | 2,476 |
| Highland Village, TX | MELGAR FACILITY MAINTENANCE, LLC | 129 | 11 | 69 |
| Parsippany, NJ | MELINTA THERAPEUTICS | 164 | 7 | 164 |
| Westport, CT | MELISSA & DOUG LLC | 206 | 4 | 206 |
| Kennesaw, GA | MEMBERS PLUS ASSOCIATION | 2,384 | 2 | 2,384 |
| St. Peters, MO | MEMC LLC | 264 | 3 | 264 |
| Parsippany, NJ | MENLO ACQUISITION CORPORATION | 65 | 8 | 66 |
| Atherton, CA | MENLO COLLEGE | 126 | 8 | — |
| Atherton, CA | MENLO SCHOOL | 216 | 6 | 216 |
| Denver, CO | MENTAL HEALTH CENTER OF DENVER | 870 | 2 | 870 |
| Allentown, PA | MEP SERVICES NORTHEAST | 128 | 2 | 128 |
| Morrisville, NC | MERCALIS INC | 1,301 | 9 | 1,301 |
| Palo Alto, CA | MERCARI, INC. | 102 | 6 | 102 |
| Alpharetta, GA | MERCHANT ESOLUTIONS, INC. | 127 | 5 | 127 |
| Irvine, CA | MERCHSOURCE, LLC | 237 | 7 | 390 |
| Rahway, NJ | MERCK SHARP & DOHME LLC | 30,983 | 19 | 34,521 |
| Austin, TX | MERCURY FINANCIAL, LLC | 214 | 7 | 214 |
| Los Angeles, CA | MERCURY INSURANCE SERVICES, LLC | 4,182 | 10 | 4,182 |
| Chesterfield, MO | MERCY HEALTH | 30,785 | 1 | 30,785 |
| Denver, CO | MERCY HOUSING, INC. | 1,708 | 13 | 1,708 |
| New Brighton, MN | MERIDIAN BEHAVIORAL HEALTH, LLC | 512 | 3 | 740 |
| Middleton, WI | MERIDIAN GROUP, INC. | 167 | 5 | 215 |
| Chicago, IL | MERIEUX NUTRISCIENCES CORPORATION | 802 | 7 | 1,289 |
| Sunset Beach, CA | MERITAGE HEALTHCARE, LLC | 125 | 5 | 125 |
| Scottsdale, AZ | MERITAGE HOMES CORPORATION | 1,947 | 4 | 1,947 |
| Henderson, CO | MERRITT TRAILERS, INC. | 165 | 1 | 165 |
| Boonton, NJ | MERSEN USA HOLDING CORP | 1,267 | 3 | 1,267 |
| Lakewood, CO | MESA LABORATORIES, INC. | 447 | 6 | 447 |
| Chicago, IL | MESIROW FINANCIAL ADMINISTRATIVE CORPORATION | 493 | 10 | 5 |
| Rockville, MD | MESO SCALE DIAGNOSTICS, LLC | 988 | 4 | 988 |
| Grants Pass, OR | MET ONE INSTRUMENTS, INC. | 136 | 8 | 47 |
| North Attleboro, MA | METALOR TECHNOLOGIES USA | 217 | 8 | 205 |
| Houston, TX | METRO NATIONAL CORPORATION | 199 | 5 | 199 |
| Burnsville, MN | METRO SALES INC | 283 | 2 | 283 |
| Grand Rapids, MI | METROPOLITAN HOSPITAL | 3,386 | 9 | 2,327 |
| Vallejo, CA | MEYER CORPORATION | 353 | 8 | 353 |
| Chatsworth, CA | MGA ENTERTAINMENT, INC. | 490 | 6 | 490 |
| El Segundo, CA | MH SUB I, LLC DBA INTERNET BRANDS | 1,887 | 5 | 1,887 |
| Sterling, VA | MHM SERVICES, INC. | 8,054 | 5 | 8,054 |
| Miami, FL | MIAMI JEWISH HEALTH SYSTEMS | 372 | 5 | 372 |
| Minneapolis, MN | MICHAUD COOLEY ERICKSON AND ASSOCIATES LLC | 116 | 3 | 117 |
| Greenville, SC | MICHELIN NORTH AMERICA, INC. | 17,737 | 52 | 517 |
| Brownsville, WI | MICHELS CORPORATION | 2,962 | 7 | 2,025 |
| St. Louis, MO | MICHELSON REALTY COMPANY L.L.C. | 197 | 4 | 197 |
| Lansing, MI | MICHIGAN FARM BUREAU | 1,109 | 13 | 1,109 |
| Lathrup Village, MI | MICHIGAN FIRST CREDIT UNION | 488 | 9 | — |
| Cranberry Township, PA | MICROBAC LABORATORIES, INC. | 519 | 9 | 519 |
| Arlington, TN | MICROPORT ORTHOPEDICS INC. | 375 | 5 | 375 |
| Germantown, TN | MID SOUTH MILLING COMPANY, INC | 117 | 4 | 117 |
| Wichita, KS | MID-CONTINENT INSTRUMENTS | 433 | 9 | 208 |
| St. Louis, MO | MIDAS HOSPITALITY, LLC | 270 | 4 | 270 |
| Iselin, NJ | MIDDLESEX WATER COMPANY | 348 | 11 | 348 |
| Cleveland, OH | MIDDOUGH INC. | 413 | 8 | 330 |
| Midland, MI | MIDLAND COGENERATION VENTURE LIMITED PARTNERSHIP | 0 | 4 | 72 |
| San Diego, CA | MIDLAND CREDIT MANAGEMENT, INC. AND ITS SUBSIDIARIES | 1,475 | 6 | 1,448 |
| Hartland, WI | MIDWEST COMPOSITE TECHNOLOGIES, LLC DBA FATHOM | 501 | 5 | 476 |
| Wabash, IN | MIDWEST EYE CONSULTANTS, P.C. | 125 | 2 | 125 |
| Wabash, IN | MIDWEST EYE SERVICES, LLC | 811 | 2 | 811 |
| Columbus, OH | MIDWEST MOTOR SUPPLY CO. | 2,879 | 5 | 2,879 |
| Columbus, OH | MIDWEST PHYSICIAN ANESTHESIA SERVICES INC. | 105 | 4 | 105 |
| Lakeville, MN | MIDWEST VETERINARY SUPPLY, INC. | 828 | 3 | 828 |
| Arvada, CO | MILENDER WHITE INC. | 165 | 9 | 143 |
| Fremont, CA | MILESTONE TECHNOLOGIES, INC. | 1,846 | 4 | 120 |
| Milford, MA | MILFORD REGIONAL MEDICAL CENTER, INC. | 2,439 | 5 | 579 |
| York, PA | MILITARY & COMMERCIAL FASTENERS CORP. | 111 | 4 | 222 |
| Dallas, TX | MILL CREEK RESIDENTIAL TRUST LLC | 1,060 | 2 | 1,060 |
| Mentor, OH | MILL-ROSE COMPANY | 177 | 5 | 177 |
| Houston, TX | MILLAR, INC. | 117 | 5 | 117 |
| Parsippany, NJ | MILLENIUM SYSTEMS INTERNATIONAL | 160 | 5 | — |
| Cleveland, OH | MILLENNIA HOUSING MANAGEMENT LTD | 750 | 5 | 610 |
| Arlington, VA | MILLENNIUM CORPORATION | 409 | 11 | 409 |
| San Diego, CA | MILLENNIUM HEALTH, LLC | 764 | 8 | 764 |
| Southfield, MI | MILLENNIUM SOFTWARE, INC. | 325 | 13 | — |
| Chattanooga, TN | MILLER & MARTIN PLLC | 176 | 13 | 175 |
| Ooltewah, TN | MILLER INDUSTRIES, INC. | 1,890 | 16 | 1,811 |
| Zeeland, MI | MILLERKNOLL, INC. | 6,776 | 12 | 6,776 |
| Doral, FL | MILLICOM INTERNATIONAL SERVICES LLC | 85 | 6 | 98 |
| Black River Falls, WI | MILLIS TRANSFER, LLC. | 0 | 3 | 612 |
| Milwaukee, WI | MILWAUKEE ELECTRONICS CORPORATION | 293 | 6 | 293 |
| Flowery Branch, GA | MIMAKI USA, INC. | 144 | 6 | 281 |
| Minneapolis, MN | MINNEAPOLIS COLLEGE OF ART AND DESIGN | 172 | 10 | 172 |
| Edina, MN | MINNEAPOLIS RADIATION ONCOLOGY PHYSICIANS, P.A. | 153 | 4 | 153 |
| St. Paul, MN | MINNESOTA HOCKEY VENTURES GROUP | 269 | 6 | 317 |
| Bloomington, MN | MINNESOTA MASONIC CHARITIES | 272 | 2 | 263 |
| Grand Forks, ND | MINNKOTA POWER COOPERATIVE, INC | 414 | 6 | 62 |
| Georgetown, KY | MINOVA USA INC | 236 | 7 | 236 |
| Greenville, SC | MIRACLE HILL MINISTRIES, INC. | 204 | 6 | 204 |
| San Jose, CA | MIRASTAR FEDERAL CREDIT UNION | 132 | 7 | 132 |
| Tulsa, OK | MIRATECH GROUP LLC | 557 | 6 | 557 |
| Dallas, PA | MISERICORDIA UNIVERSITY | 367 | 4 | 367 |
| Las Vegas, NV | MISSION SUPPORT AND TEST SERVICES LLC | 2,473 | 11 | 2,473 |
| Choctaw, MS | MISSISSIPPI BAND OF CHOCTAW INDIANS | 2,669 | 7 | 1,890 |
| Ridgeland, MS | MISSISSIPPI BANKERS ASSOCIATION FINANCIAL INSTITUTIONS OF DEPOSIT | 2,710 | 8 | 2,710 |
| Jackson, MS | MISSISSIPPI METHODIST HOSPITAL AND REHABILITATION CENTER | 505 | 6 | 505 |
| Columbia, MO | MISSOURI EMPLOYERS MUTUAL INSURANCE CO. | 293 | 5 | 438 |
| Austin, TX | MITRATECH HOLDINGS INC. | 1,048 | 4 | 1,048 |
| Houston, TX | MITSUBISHI HEAVY INDUSTRIES AMERICA, INC. | 2,438 | 17 | 1,725 |
| Houston, TX | MITSUBISHI HEAVY INDUSTRIES COMPRESSOR INTERNATIONAL CORPORATION | 116 | 9 | 160 |
| Costa Mesa, CA | MITSUBISHI MATERIALS U.S.A. CORPORATION | 184 | 6 | 289 |
| Lake Mary, FL | MITSUBISHI POWER AMERICAS, INC. | 2,679 | 10 | 3,533 |
| New York, NY | MITSUBISHI UFJ TRUST AND BANKING CORPORATION | 230 | 4 | 268 |
| San Francisco, CA | MIXPANEL, INC. | 242 | 6 | 287 |
| Monroe Township, NJ | MJH SHARED SERVICES, LLC | 905 | 4 | 905 |
| Walnut Creek, CA | MKA INTERNATIONAL, INC. | 308 | 5 | 377 |
| Stafford, TX | MLN COMPANY | 238 | 5 | 123 |
| Irvine, CA | MOBILITYWARE | 215 | 4 | 215 |
| Toledo, OH | MOBIS NORTH AMERICA, LLC | 680 | 12 | — |
| Dallas, TX | MODE TRANSPORTATION, LLC | 626 | 2 | 626 |
| Woodbridge, NJ | MOL (AMERICAS) LLC | 224 | 4 | 224 |
| Butler, WI | MOLDED RUBBER AND PLASTIC CORPORATION | 228 | 9 | 187 |
| Culver City, CA | MOLDEX-METRIC, INC. | 150 | 5 | 201 |
| Peachtree Corners, GA | MOLNLYCKE HEALTH CARE US LLC | 694 | 20 | 707 |
| Redwood City, CA | MOLOCO, INC. | 356 | 7 | 356 |
| Salida, CO | MOLTZ CONSTRUCTION, INC. | 136 | 2 | 136 |
| Atlanta, GA | MOMAR INC. | 252 | 105 | — |
| Woodland Hills, CA | MOMENTUM | 202 | 7 | 454 |
| Chicago, IL | MONDELEZ GLOBAL LLC | 13,691 | 28 | 255 |
| Morgantown, WV | MONONGALIA HEALTH SYSTEM INC | 0 | 3 | 706 |
| Corona, CA | MONSTER BEVERAGE CORPORATION | 3,598 | 15 | 4,813 |
| Pittsburgh, PA | MONTAUK ENERGY | 161 | 6 | 161 |
| Montrose, CO | MONTROSE MEMORIAL HOSPITAL | 547 | 7 | 543 |
| Houston, TX | MOODY NATIONAL MANAGEMENT, LP | 562 | 9 | 617 |
| New York, NY | MOORE CAPITAL MANAGEMENT, L.P. | 405 | 11 | 10 |
| Providence, RI | MORAN SHIPPING AGENCIES, INC. | 119 | 8 | 119 |
| Camp Hill, PA | MOREFIELD COMMUNICATIONS, INC. | 53 | 7 | — |
| Philadelphia, PA | MORGAN LEWIS & BOCKIUS LLP | 3,484 | 12 | 158 |
| New York, NY | MORGAN STANLEY DOMESTIC HOLDINGS, LLC | 50,728 | 18 | 49,517 |
| Greenville, OH | MORIROKU TECHNOLOGY NORTH AMERICA INC. | 688 | 12 | 675 |
| Clarkesville, GA | MORITO SCOVILL AMERICAS LLC | 86 | 5 | 107 |
| Windsor, CT | MORRIS GROUP, INC. | 846 | 5 | 1,884 |
| San Francisco, CA | MORRISON & FOERSTER LLP | 2,286 | 10 | 2,286 |
| Helena, MT | MORRISON-MAIERLE, INC. | 299 | 6 | 24 |
| City Of Industry, CA | MORROW MEADOWS CORPORATION | 317 | 5 | 317 |
| Louisville, KY | MORTENSON FAMILY DENTAL HOLDINGS, INC. DBA MORTENSON DENTAL PARTNERS | 1,683 | 13 | 1,683 |
| Lake Mary, FL | MORTGAGE LENDERS INVESTMENT TRADING | 92 | 2 | 92 |
| Ft Lauderdale, FL | MOSS & ASSOCIATES, LLC | 1,839 | 7 | 1,839 |
| Minneapolis, MN | MOSS & BARNETT, A PROFESSIONAL ASSOCIATION | 141 | 6 | 115 |
| San Diego, CA | MOSSY HOLDING COMPANY | 967 | 7 | 1,102 |
| Doral, FL | MOTCO, INC. | 213 | 7 | 213 |
| Costa Mesa, CA | MOTHER'S MARKET & KITCHEN INC. | 347 | 5 | 363 |
| Woodland Hills, CA | MOTION PICTURE AND TELEVISION FUND | 361 | 10 | 539 |
| Sherman Oaks, CA | MOTION PICTURE ASSOCIATION, INC. | 159 | 5 | 159 |
| Houston, TX | MOTIVA ENTERPRISES LLC | 2,597 | 14 | 5,312 |
| Fountain Valley, CA | MOTIVE COMPANIES, LLC | 864 | 7 | 864 |
| Farmington, CT | MOTT CORPORATION | 290 | 3 | 290 |
| San Ramon, CA | MOTT MACDONALD GROUP, INC. | 1,732 | 5 | 2,241 |
| Fort Worth, TX | MOUNT OLIVET CEMETERY ASSOCIATON | 149 | 8 | 189 |
| Emmitsburg, MD | MOUNT SAINT MARYS UNIVERSITY | 468 | 6 | 468 |
| Mount Vernon, VA | MOUNT VERNON LADIES ASSOCIATION OF THE UNION | 264 | 3 | 264 |
| Denver, CO | MOUNTAIN STATES EMPLOYERS COUNCIL, INC. | 111 | 7 | 111 |
| Us Dresher, PA | MOUNTAIN VIEW NURSING, L.P. | 120 | 8 | 120 |
| Mountain View, CA | MOVEWORKS, INC | 367 | 3 | 367 |
| Souderton, PA | MOYER & SON, INC. | 242 | 8 | 221 |
| Cornelius, NC | MPAY INC | 129 | 4 | 129 |
| Manalapan, FL | MPB HOTEL, LLC | 442 | 6 | 608 |
| Baltimore, MD | MRA SYSTEMS, LLC | 0 | 8 | 311 |
| Houston, TX | MRC GLOBAL (US) INC. | 1,941 | 3 | 1,941 |
| Mankato, MN | MRCI | 145 | 4 | 145 |
| Baraboo, WI | MSA PROFESSIONAL SERVICES, INC. | 417 | 7 | — |
| Charlotte, NC | MSHC INC. DBA SERVICE LOGIC | 1,688 | 9 | 3,617 |
| West Allis, WI | MSP REAL ESTATE, INC. | 478 | 8 | 478 |
| San Antonio, TX | MTC, INC. | 266 | 6 | 266 |
| Colliersville, TN | MUELLER INDUSTRIES, INC. | 3,412 | 7 | 3,412 |
| San Diego, CA | MULLIGAN FUNDING, LLC | 153 | 3 | 153 |
| Dallas, TX | MULTICAM | 173 | 6 | 218 |
| Princeton, NJ | MUNICH RE AMERICA SERVICES, INC. | 4,911 | 11 | 4,884 |
| Katy, TX | MUNICIPAL DISTRICT SERVICES, LLC | 236 | 7 | 405 |
| Baltimore, MD | MUNICIPAL EMPLOYEES CREDIT UNION OF BALTIMORE INC. | 365 | 9 | 365 |
| Washington, DC | MUNICIPAL SECURITIES RULEMAKING BOARD | 121 | 2 | 121 |
| Amesbury, MA | MUNTERS CORPORATION | 1,335 | 8 | 1,326 |
| Bloomfield, NJ | MUNZING NORTH AMERICA, LP | 143 | 8 | 140 |
| Charlotte, NC | MURATA MACHINERY USA HOLDINGS, INC. | 407 | 4 | — |
| Murfreesboro, TN | MURFREESBORO MEDICAL CLINIC, PA | 793 | 10 | 688 |
| Houston, TX | MURPHY OIL CORPORATION | 690 | 5 | 667 |
| El Dorado, AR | MURPHY USA INC. | 11,810 | 5 | 1,279 |
| Cleveland, OH | MURTIS TAYLOR HUMAN SERVICES SYSTEM | 131 | 4 | 131 |
| Battle Creek, MI | MUSASHI AUTO PARTS, INC. | 357 | 4 | 357 |
| Oskaloosa, IA | MUSCO CORPORATION | 1,402 | 5 | 1,402 |
| Chicago, IL | MUSCULAR DYSTROPHY ASSOCIATION, INC | 359 | 12 | 359 |
| Boston, MA | MUSEUM OF FINE ARTS BOSTON | 454 | 4 | 380 |
| Chicago, IL | MUSEUM OF SCIENCE & INDUSTRY | 219 | 7 | 218 |
| Houston, TX | MUSTANG TRACTOR & EQUIPMENT COMPANY, LTD | 1,271 | 24 | 1,179 |
| Houston, TX | MUSTANG TRACTOR & EQUIPMENT COMPANY, LTD | 1,271 | 9 | 1,179 |
| Canonsburg, PA | MYLAN INC. | 4,125 | 17 | 20 |
| San Diego, CA | MYPOINT CREDIT UNION | 101 | 7 | 154 |
| San Francisco, CA | MYVEST CORPORATION | 120 | 7 | 153 |
| Louisa, VA | N&S CONSTRUCTION INC. | 449 | 7 | — |
| Peachtree Corners, GA | NAC INTERNATIONAL, INC. | 102 | 3 | 102 |
| Mesa, AZ | NAMMO TALLEY INC | 757 | 7 | 757 |
| Livingston, NJ | NAN YA PLASTICS CORPORATION USA | 215 | 3 | 217 |
| Livingston, NJ | NAN YA PLASTICS CORPORATION, AMERICA | 854 | 3 | 855 |
| Longview, WA | NAPSTEEL, INC. | 111 | 6 | — |
| Rockville, MD | NASDAQ, INC. | 2,464 | 9 | 28 |
| Nashville, TN | NASHVILLE HOCKEY CLUB, LP | 314 | 7 | 318 |
| Nashville, TN | NASHVILLE WIRE PRODUCTS MANUFACTURING COMPANY LLC. | 947 | 7 | 955 |
| Santa Monica, CA | NATIONAL ACADEMY OF RECORDING ARTS & SCIENCES, INC. | 349 | 7 | 349 |
| Bethesda, MD | NATIONAL ASSOCIATION OF COMMUNITY HEALTH CENTERS | 269 | 2 | 189 |
| Washington, DC | NATIONAL ASSOCIATION OF HOME BUILDERS OF THE UNITED STATES | 195 | 7 | 330 |
| Washington, DC | NATIONAL ASSOCIATION OF MANUFACTURERS | 164 | 10 | 196 |
| Greenwood Village, CO | NATIONAL BANK HOLDINGS CORPORATION | 1,237 | 7 | — |
| Philadelphia, PA | NATIONAL BOARD OF MEDICAL EXAMINERS | 549 | 4 | 659 |
| Washington, DC | NATIONAL CABLE SATELLITE CORPORATION | 154 | 5 | 154 |
| St. Paul, MN | NATIONAL CHECKING COMPANY | 120 | 5 | 139 |
| Rancho Cucamonga, CA | NATIONAL COMMUNITY RENAISSANCE | 533 | 6 | 533 |
| Mission Hills, CA | NATIONAL CONSTRUCTION RENTALS | 955 | 5 | 955 |
| Duluth, GA | NATIONAL DCP LLC | 5,025 | 7 | 2,500 |
| Washington, DC | NATIONAL DEMOCRATIC INSTITUTE FOR INTERNATIONAL AFFAIRS | 364 | 6 | 180 |
| Nashville, TN | NATIONAL FEDERATION OF INDEPENDENT BUSINESS, INC. | 554 | 5 | 554 |
| Linthicum Heights, MD | NATIONAL FIDELITY MORTGAGE CORP. | 991 | 8 | 892 |
| Claremont, NH | NATIONAL FIELD REPRESENTATIVES, LLC | 172 | 6 | 172 |
| Madison, WI | NATIONAL GUARDIAN LIFE INSURANCE COMPANY | 341 | 10 | — |
| Denver, CO | NATIONAL JEWISH HEALTH | 1,538 | 14 | 1,927 |
| Franklin Park, IL | NATIONAL LIFT TRUCK, INC. | 155 | 6 | 155 |
| Waltham, MA | NATIONAL MEDICAL CARE, INC. | 58,532 | 17 | 58,532 |
| Eau Claire, WI | NATIONAL PRESTO INDUSTRIES INC | 826 | 9 | 950 |
| Washington, DC | NATIONAL PUBLIC RADIO | 1,133 | 9 | 38 |
| Washington, DC | NATIONAL RAILROAD PASSENGER CORPORATION | 19,091 | 34 | 4,238 |
| Long Beach, CA | NATIONAL RENAL CARE LLC | 163 | 4 | 385 |
| Itasca, IL | NATIONAL SAFETY COUNCIL | 250 | 8 | 250 |
| Houston, TX | NATIONAL TRENCH SAFETY, INC. | 737 | 4 | 737 |
| San Diego, CA | NATIONAL UNIVERSITY | 2,293 | 6 | 2,293 |
| Austin, TX | NATIONAL WESTERN LIFE INSURANCE CO. | 0 | 10 | 217 |
| Stamford, CT | NATWEST MARKETS SECURITIES INC. | 267 | 8 | 267 |
| Phoenix, AZ | NAUMANN/HOBBS MATERIAL HANDLING CORPORATION II, INC. | 341 | 10 | 331 |
| Denver, CO | NAVAJO MANUFACTURING COMPANY INC. | 96 | 5 | 96 |
| Lake Oswego, OR | NAVEX GLOBAL | 962 | 12 | 963 |
| Macon, GA | NAVICENT HEALTH, INC. | 6,698 | 12 | 5,669 |
| Irvine, CA | NAVIEN, INC. | 226 | 2 | 226 |
| Princeton, NJ | NAVITAS, INC. | 121 | 5 | 88 |