| SLAYDEN PLUMBING & HEATING INC | 1656163 | NORTH POLE | 11 |
| SLEEPING LADY WATER COMPANY | 3848858 | ANCHORAGE | 1 |
| SLEIPNER TRANSPORT LLC | 2238382 | ANCHORAGE | 0 |
| SLIPPERY FISH ADVENTURES LLC | 3019226 | HOMER | 1 |
| SLP ENTERPRISE INC | 1751494 | ANCHORAGE | 1 |
| SLUDGEBUSTERS SEPTIC SERVICE LLC | 2088260 | DELTA JUNCTION | 2 |
| SMALLWOOD CREEK INC | 1686594 | FAIRBANKS | 3 |
| SMART & SON CO | 1718532 | PALMER | 1 |
| SMITH & SONS CONCRETE PUMPING S&S | 2017945 | WASILLA | 3 |
| SMITH BROTHERS | 1940508 | WASILLA | 5 |
| SMITH CONSTRUCTION LLC | 4573697 | HAINES | 2 |
| SMITH WELL DRILLING | 1745089 | STERLING | 3 |
| SMITHSONS ENTERPRISES | 1661757 | ANCHORAGE | 9 |
| SMITTYS DIESEL & TRANSMISSION SERVICE LLC | 3367862 | FAIRBANKS | 1 |
| SMOKEY POINT ALEUTIAN CONCRETE | 2040961 | UNALASKA | 5 |
| SMS EQUIPMENT INC | 3142963 | ANCHORAGE | 13 |
| SNOPAC PRODUCTS INC | 2021503 | DILLINGHAM | 4 |
| SNOW WHITE INC | 1693390 | ANCHORAGE | 8 |
| SNOWCLOUD SERVICES LLC | 4287195 | JUNEAU | 1 |
| SNOWY RIVER CONSTRUCTION | 1786913 | DELTA JUNCTION | 2 |
| SNOWY RIVER FARMS INC | 749206 | KETCHIKAN | 13 |
| SNUG HARBOR SEAFOODS INC | 871712 | KENAI | 1 |
| SNW SERVICES LLC | 4378168 | TOK | 1 |
| SOARING EAGLE TRUCKING | 1648023 | NORTH POLE | 1 |
| SOCKEYE ASPHALT MAINTENANCE | 1654999 | WASILLA | 12 |
| SOCKEYE CONSTRUCTION LLC | 3058775 | ANCHORAGE | 1 |
| SOCKEYE CYCLE COMPANY | 1652562 | HAINES | 9 |
| SOCKEYE EXCAVATION LLC | 6149806 | FAIRBANKS | 1 |
| SOLDOTNA TOWING | 1660648 | SOLDOTNA | 2 |
| SOLDOTNA Y TOWING INC | 2934959 | SOLDOTNA | 3 |
| SOLID CHOICE LLC | 4266550 | WASILLA | 3 |
| SOLID GROUND DIRTWORK | 2400982 | FAIRBANKS | 2 |
| SOLOY HELICOPTERS LLC | 3042334 | WASILLA | 1 |
| SOLSTENXP INC | 1869406 | ANCHORAGE | 2 |
| SOLSTICE ENTERPRISES | 4414566 | SALCHA | 3 |
| SOMA ENTERPRISES INC | 2578767 | SOLDOTNA | 1 |
| SON OF KOPPERUD TRUCKING | 1907281 | PALMER | 1 |
| SON SHINE UNLIMITED CONTRACTING | 3337456 | JUNEAU | 2 |
| SONSHINE ENTERPRISES | 1716972 | ANCHORAGE | 1 |
| SOONER EQUIPMENT SERVICES LLC | 4426545 | PALMER | 1 |
| SOPER'S CONCRETE | 1865080 | PALMER | 2 |
| SOULE TRANSPORTATION | 3981293 | FAIRBANKS | 1 |
| SOUND QUARRY INC | 2439623 | NOME | 1 |
| SOURCE LLC | 1975975 | JUNEAU | 2 |
| SOURDOUGH EXPRESS INC | 125119 | FAIRBANKS | 113 |
| SOURDOUGH FORWARDING LLC | 2973670 | FAIRBANKS | 0 |
| SOURDOUGH SIGN SERVICE LLC | 8287021 | WASILLA | 1 |
| SOURDOUGH TOURS OF KETCHIKAN | 1654669 | KETCHIKAN | 11 |
| SOURDOUGH TRANSFER INC | 1099784 | FAIRBANKS | 20 |
| SOUTH CENTRAL ASPHALT SEALING | 1645216 | NIKISKI | 1 |
| SOUTH CENTRAL DRILLING COMPANY | 1732211 | ANCHOR POINT | 2 |
| SOUTH CENTRAL EQUIPMENT LLC | 2432317 | WASILLA | 4 |
| SOUTH CENTRAL GROUP INC | 1963916 | VALDEZ | 1 |
| SOUTH CENTRAL ROOFING INC | 1697763 | ANCHORAGE | 1 |
| SOUTH CENTRAL SERVICES | 2141346 | WASILLA | 1 |
| SOUTH CENTRAL TOWING | 3254791 | ANCHORAGE | 1 |
| SOUTH PENINSULA DIRT WORKS LLC | 4231134 | HOMER | 4 |
| SOUTHCENTRAL COMMUNICATIONS LLC | 3312730 | SOLDOTNA | 4 |
| SOUTHCENTRAL CONSTRUCTION INC | 1803132 | ANCHORAGE | 25 |
| SOUTHCENTRAL EQUIPMENT RENTAL LLC | 3075757 | SEWARD | 1 |
| SOUTHCENTRAL FOUNDATION | 1923459 | ANCHORAGE | 1 |
| SOUTHEAST EARTHMOVERS INC | 1645500 | JUNEAU | 7 |
| SOUTHEAST ENTERPRISES LLC | 3971382 | COFFMAN COVE | 2 |
| SOUTHEAST EQUIPMENT RENTALS LLC | 2311680 | SITKA | 1 |
| SOUTHEAST EXTINGUISHER SERVICE INC | 1749060 | JUNEAU | 1 |
| SOUTHEAST FURNITURE WAREHOUSE INC | 1048191 | JUNEAU | 2 |
| SOUTHEAST REMODEL INC | 1681009 | JUNEAU | 1 |
| SOUTHEAST SERVICES LLC | 3272164 | HOLLIS | 1 |
| SOUTHEAST STEVEDORING CORP | 1659105 | KETCHIKAN | 6 |
| SOUTHEAST TRUCKING | 3578724 | JUNEAU | 15 |
| SOUTHEAST WATER SERVICES LLC | 3190323 | KETCHIKAN | 2 |
| SOUTHERN EXPOSURE LLC | 1670108 | HOMER | 3 |
| SOUTHWEST ALASKA CONTRACTORS LLC | 2455930 | NAKNEK | 13 |
| SPAIN EXCAVATING LLC | 3063300 | WILLOW | 5 |
| SPECIAL EVENTS ALASKA | 2299569 | WASILLA | 9 |
| SPECIALTY EXCAVATING LLC | 3214936 | SOLDOTNA | 1 |
| SPECIALTY IMPORTS INC | 1664520 | ANCHORAGE | 8 |
| SPECIALTY LAND CLEARING AND CONSTRUCTION INC | 1677681 | STERLING | 2 |
| SPECIALTY TRUCK & AUTO INC | 2292197 | ANCHORAGE | 1 |
| SPECPRO INC | 857519 | ANCHORAGE | 2 |
| SPECTRE ELECTRIC LLC | 3187087 | FAIRBANKS | 8 |
| SPEEDY ENTERPRISES INC | 2098363 | ANCHORAGE | 2 |
| SPENARD BUILDERS SUPPLY LLC | 410407 | ANCHORAGE | 167 |
| SPENARD BUILDERS SUPPLY LLC | 2973687 | ANCHORAGE | 0 |
| SPERNAK & SON LLC | 2966043 | ANCHORAGE | 5 |
| SPI WATER LLC | 3760997 | PALMER | 2 |
| SPINELL HOMES INC | 1662752 | ANCHORAGE | 2 |
| SPIRIT LIFE FELLOWSHIP CHURCH | 2155132 | ANCHORAGE | 1 |
| SPOTTED DOG ENTERPRISES | 1722214 | WASILLA | 2 |
| SPRING CREEK ENTERPRISES | 1709977 | CHUGIAK | 1 |
| SPRING CREEK FARMS | 760839 | PALMER | 2 |
| SPRINKLER PRO ALASKA | 3127268 | KENAI | 3 |
| SPRUCE BEETLE TREE SERVICE | 3751345 | PALMER | 1 |
| SPRUCE ISLAND FUEL LLC | 2420309 | OUZINKIE | 3 |
| SRAEL ABRAHAM CASTILLO | 4403248 | ANCHORAGE | 1 |
| STACY D GOULD | 1107477 | SKAGWAY | 24 |
| STAMPEDE EXCURSIONS LLC | 3105691 | DENALI NATIONAL PARK | 1 |
| STAMPEDE VENTURES INC | 1655424 | NOME | 9 |
| STANDLEY TOPSOIL AND GRAVEL | 3290083 | NIKISKI | 1 |
| STANLEY FORD INC | 2276966 | KENAI | 2 |