| SOUTHWEST NATIVE CONSULTANTS, LLC | — | 2162303 | 2001-04-10 | Active | |
| SOUTHWEST NETWORK SERVICES, INC. | — | 2155323 | 2001-03-16 | Revoked | |
| SOUTHWEST NURSE STAFFING, LLC | — | 2149144 | 2001-02-23 | Active | |
| SOUTHWEST PROPERTIES OF DEMING, LLC | — | 2165827 | 2001-05-01 | Active | |
| SOUTHWEST PROTECTION & SPECIALTIES, LLC | — | 2171585 | 2001-05-24 | Active | |
| SOUTHWEST PSYCHOLOGY ASSOCIATES, P.A. | — | 2199149 | 2001-10-01 | Dissolved | |
| SOUTHWEST PUBLIC RELATIONS ASSOCIATES, INC. | — | 2189116 | 2001-08-14 | Withdrawn | |
| SOUTHWEST RACING NEWS, INC. | — | 2177541 | 2001-06-20 | Revoked | |
| SOUTHWEST ROD & CUSTOM, INCORPORATED | — | 2144244 | 2001-01-31 | Revoked | |
| SOUTHWEST SANITATION INC. | — | 2149334 | 2001-02-20 | Revoked | |
| SOUTHWEST SATELLITE SUPPORT SERVICES LLC | — | 2217735 | 2001-12-26 | Active | |
| SOUTHWEST SCHOOL SUPPLY CO. LLC | — | 2147627 | 2001-02-13 | Active | |
| SOUTHWEST SEARCH DOGS, INC. | — | 2188738 | 2001-08-10 | Revoked | |
| SOUTHWEST STONE LLC | — | 2148948 | 2001-02-19 | Active | |
| SOUTHWEST TANK & TRAILER, LLC | — | 2197192 | 2001-09-21 | Active | |
| SOUTHWEST THERAPY SERVICES, LLC | — | 2198034 | 2001-09-24 | Active | |
| SOUTHWEST TIBURON, L.L.C. | — | 2213445 | 2001-12-05 | Withdrawn | |
| SOUTHWEST TOOL & EQUIPMENT, LTD. | — | 2153864 | 2001-03-09 | Active | |
| SOUTHWEST TURF & TREE CARE, LLC | — | 2179224 | 2001-07-09 | Active | |
| SOUTHWEST VETERINARY HOLDINGS, LLC | — | 2212728 | 2001-12-03 | Active | ALBUQUERQUE |
| SOUTHWEST WEB DESIGN AND PHOTOGRAPHY, INC. | — | 2141901 | 2001-01-24 | Revoked | |
| SOUTHWEST WIRELESS NETWORKS, INC. | — | 2195147 | 2001-09-07 | Revoked | |
| SOUTHWEST WIRELESS PARTNERS, L.L.C. | — | 2172716 | 2001-06-12 | Active | |
| SOUTHWEST WIRELESS SOLUTIONS, INC. | — | 2208304 | 2001-11-13 | Revoked | |
| SOUTHWESTERN ASSOCIATION FOR INDIAN ARTS, INC. | — | 2176816 | 2001-06-26 | Active | Santa Fe |
| SOUTHWESTERN ENCHANTMENT TOURS, LLC | — | 2175743 | 2001-06-12 | Active | |
| SOUTHWESTERN ENVIRONMENTAL CONSULTANTS, INC. | — | 2152148 | 2001-03-05 | Revoked | |
| SOUTHWESTERN EXCLUSIVES LLC | — | 2177509 | 2001-06-25 | Active | |
| SOUTHWESTERN GAS SERVICES INC. | — | 2152932 | 2001-03-08 | Active | Santa Fe |
| SOUTHWESTERN REGIONAL HOUSING AND COMMUNITY DEVELOPMENT CORPORATION | — | 2161701 | 2001-04-11 | Active | Deming |
| SOUTHWESTERN WIRELESS, INC. | — | 2192235 | 2001-08-24 | Revoked | |
| SP&S, LLC | — | 2163962 | 2001-04-23 | Active | |
| SP-I MIAMI PROPERTIES LLC | — | 2138238 | 2001-01-08 | Active | Hobbs |
| SPAILAND COMPANY LLC | — | 2191021 | 2001-08-23 | Active | |
| SPARGO FAMILY LIMITED PARTNERSHIP | — | LPD2001101801 | 2001-10-18 | Active | Mulvane |
| SPC INSURANCE AGENCY, INC. | — | 2152577 | 2001-03-05 | Active | Saint Paul |
| SPEARHEAD ENGINEERING, LLC | — | 2186880 | 2001-08-01 | Active | |
| SPECIAL MASTER LEGAL SERVICES, LTD. | — | 2165488 | 2001-04-25 | Revoked | |
| SPECIAL T AVIATION TRAINING, LLC | — | 2145084 | 2001-02-05 | Active | |
| SPECIALTY BUSINESS ITEMS, INC. | — | 2191567 | 2001-08-20 | Active | Rio Rancho |
| SPECIALTY ELECTRIC INCORPORATED | — | 2162451 | 2001-04-17 | Active | Albuquerque |
| SPECIALTY MORTGAGE CO., LLC | — | 2164143 | 2001-04-24 | Dissolved | |
| SPECIALTY RETAILERS(TX), LIMITED PARTNERSHIP | — | LPF2001083001 | 2001-08-30 | Canceled | |
| SPECPRO, INC. | — | 2139186 | 2001-01-16 | Pending | ANCHORAGE |
| SPECTRASITE BUILDING GROUP, INC. | — | 2170975 | 2001-05-22 | Merged | |
| SPECTRUM CAPITAL MARKETS, LLC | — | 2171569 | 2001-05-24 | Active | |
| SPECTRUM CONSTRUCTION CONTRACTING OF NM, LLC | — | 2179547 | 2001-07-05 | Active | |
| SPECTRUM HEALTHCARE NATIONWIDE, INC. | — | 2211761 | 2001-11-29 | Revoked | |
| SPEECH LANGUAGE THERAPY SERVICES, INC. | — | 2158095 | 2001-03-21 | Revoked | |
| SPEED QUEEN OF CHAMA, LLC | — | 2190924 | 2001-08-16 | Active | |