| SOUTH IDAHO TELEPHONE AND TELEGRAPH COMPANY, LIMITED | — | 0000031522 | 1908-04-13 | Suspended | |
| SOUTH MOUNTAIN CONSOLIDATED MINES TUNNEL COMPANY | — | 0000031010 | 1908-01-17 | Suspended | HARRISON |
| SOUTH SIDE MINIDOKA WATER USERS ASSOCIATION, LIMITED | — | 0000031025 | 1908-01-20 | Suspended | |
| SOUTHERN HERCULES MINING COMPANY, LTD. | — | 0000031718 | 1908-05-09 | Suspended | |
| SOUTHERN IDAHO OIL AND GAS COMPANY, LIMITED | — | 0000031254 | 1908-02-29 | Suspended | |
| SPARLIN DITCH COMPANY, LIMITED | — | 0000031699 | 1908-05-08 | Suspended | |
| SPIRIT LAKE MINING, MILLING, AND MANUFACTURING COMPANY, LIMITED | — | 0000032651 | 1908-11-09 | Suspended | |
| SPOFFORD GOLD MINING COMPANY, LTD. | — | 0000031456 | 1908-03-30 | Suspended | |
| SPRING MOUNTAIN MINING COMPANY | — | 0000032071 | 1908-07-30 | Suspended | |
| ST. JOE EXTENSION MINING COMPANY | — | 0000032228 | 1908-08-31 | Suspended | |
| ST. JOHN CEMETERY ASSOCIATION | — | 0000032612 | 1908-11-21 | Suspended | |
| ST. JOSEPH'S ECCLESEASTICAL SOCIETY OF IDAHO | — | 0000031656 | 1908-04-28 | Suspended | |
| ST. MARIES BRICK COMPANY, LIMITED | — | 0000031755 | 1908-05-21 | Suspended | |
| STANDARD-NEWS PUBLISHING COMPANY, LIMITED (THE) | — | 0000032079 | 1908-07-30 | Suspended | |
| STANLEY MINING AND INVESTMENT COMPANY, LIMITED | — | 0000032888 | 1908-12-29 | Suspended | |
| STAR OIL AND GAS COMPANY, LIMITED (THE) | — | 0000031615 | 1908-04-22 | Suspended | |
| STEEN MEAT COMPANY, LIMITED (THE) | — | 0000032619 | 1908-11-02 | Suspended | |
| STEPHENS ORCHARD & NURSERY CO. | — | 0000031562 | 1908-04-20 | Suspended | NAMPA |
| SUCCESS CANAL COMPANY LIMITED | — | 0000031359 | 1908-03-14 | Suspended | |
| SUGAR CITY TIMES PUBLISHING CO. | — | 0000032375 | 1908-10-05 | Suspended | |
| SUNSET-BANNER MINING COMPANY, LIMITED | — | 0000032286 | 1908-09-26 | Suspended | |
| TELLWIDE POWER COMPANY (THE) | — | 0000032435 | 1908-08-07 | Suspended | ALEXANDER |
| TESEMINI OUTING CLUB | — | 0000031938 | 1908-07-08 | Revoked | SPOKANE |
| TETON RIVER LIGHT AND POWER COMPANY LIMITED | — | 0000032383 | 1908-10-05 | Suspended | |
| THE FIRST BAPTIST CHURCH OF BLACKFOOT, IDAHO, INC. | — | 0000032388 | 1908-10-03 | Active | BLACKFOOT |
| THOUSAND SPRINGS LAND AND IRRIGATION COMPANY, LIMITED | — | 0000032586 | 1908-11-16 | Suspended | |
| THREE LINKS GOLD MINING COMPANY, LIMITED | — | 0000031506 | 1908-04-14 | Suspended | |
| TRAPPER COAL COMPANY (THE) | — | 0000031124 | 1908-01-23 | Suspended | |
| TREASURY HILL MINING COMPANY, LIMITED | — | 0000031550 | 1908-04-20 | Suspended | LEWISTON |
| TRIBUNE PUBLISHING COMPANY | Information | 0000031385 | 1908-03-20 | Active | |
| TRINITY LUTHERAN CHURCH | — | 0000031363 | 1908-03-16 | Active | |
| TWIN FALLS ATHLETIC ASSOCIATION, LIMITED | — | 0000031524 | 1908-04-13 | Suspended | |
| TWIN FALLS BANK & TRUST COMPANY | — | 0000032309 | 1908-10-01 | Merged | |
| TWIN FALLS COMMERCIAL CLUB | — | 0000031764 | 1908-05-23 | Suspended | |
| TWIN FALLS CREAMERY COMPANY, LIMITED (THE) | — | 0000031135 | 1908-02-04 | Suspended | |
| TWIN FALLS IRRIGATED ORCHARD COMPANY | — | 0000031869 | 1908-06-12 | Suspended | |
| TWIN FALLS MILLING & ELEVATOR COMPANY | — | 0000032448 | 1908-09-01 | Dissolved | |
| TWIN FALLS SALMON RIVER LAND AND WATER COMPANY | — | 0000031591 | 1908-04-24 | Suspended | |
| TWIN FALLS-SHOSHONE LAND AND WATER COMPANY, LIMITED | — | 0000031683 | 1908-05-18 | Suspended | |
| UNION PHOSPHATE COMPANY | — | 0000031551 | 1908-04-20 | Suspended | |
| UNION PORTLAND CEMENT COMPANY | — | 0000032430 | 1908-08-03 | Withdrawn | |
| UNITED AMERICAN MINES COMPANY, LIMITED | — | 0000031150 | 1908-01-24 | Suspended | |
| UNITED LEAD MINING COMPANY | — | 0000030506 | 1908-01-24 | Suspended | WALLACE |
| UNITED PLACER MINES COMPANY | — | 0000032495 | 1908-09-24 | Suspended | |
| UTAH AND IDAHO IMPROVEMENT COMPANY (THE) | — | 0000031271 | 1908-02-25 | Suspended | GANNETT |
| UTAH CONSTRUCTION COMPANY | — | 0000031489 | 1908-04-06 | Merged | REXBURG |
| UTAH FERTILIZER AND CHEMICAL MANUFACTURING COMPANY | — | 0000031166 | 1908-01-29 | Suspended | GEORGETOWN |
| VEATCH REALTY COMPANY LIMITED | — | 0000031958 | 1908-06-25 | Suspended | |
| VENABLE BONDING AND LEASING COMPANY, (LTD) (THE) | — | 0000031993 | 1908-06-29 | Suspended | |
| VICKERS-SIMS HARDWARE COMPANY, LIMITED | — | 0000032263 | 1908-08-13 | Suspended | |