| ACACIA B, CONSOLIDATED MINING AND MILLING COMPANY (THE) | — | 0000000037 | 1902-11-28 | Suspended | |
| ACME GOLD DREDGING COMPANY, (LIMITED) | — | 0000000055 | 1902-02-11 | Suspended | |
| ADDIE CONSOLIDATED MINING AND MILLING COMPANY, LIMITED (THE) | — | 0000000127 | 1902-01-18 | Suspended | |
| AJAX MINING COMPANY | — | 0000000221 | 1902-10-20 | Suspended | |
| ALDER CREEK MINING COMPANY | — | 0000000303 | 1902-04-04 | Suspended | LEWISTON |
| ALDER CREEK MINING COMPANY, LIMITED (THE) | — | 0000000285 | 1902-09-06 | Suspended | |
| ALICE SILVER-LEAD MINING COMPANY | — | 0000000336 | 1902-07-30 | Withdrawn | |
| ALLEN-BEATTY EVAPORATING COMPANY, LIMITED (THE) | — | 0000000348 | 1902-06-14 | Suspended | |
| ALLEN-MERIDIAN EVAPORATING COMPANY, LIMITED (THE) | — | 0000000371 | 1902-07-19 | Suspended | |
| ALUMINUM GOLD MINING CO. LIMITED | — | 0000000510 | 1902-12-23 | Suspended | |
| AMERICAN DITCH ASSOCIATION | — | 0000000577 | 1902-04-12 | Suspended | |
| AMERICAN EAGLE CONSOLIDATED GOLD MINING CO. LIMITED | — | 0000000590 | 1902-11-07 | Suspended | |
| AMERICAN TITLE & TRUST COMPANY, LIMITED | — | 0000000787 | 1902-12-23 | Suspended | |
| APEX MINING COMPANY, LIMITED | — | 0000001038 | 1902-11-17 | Suspended | |
| ATHOL IMPROVEMENT COMPANY, LIMITED | — | 0000001064 | 1902-03-25 | Suspended | |
| ATLAS COPPER MINING COMPANY, LIMITED | — | 0000001154 | 1902-06-19 | Suspended | WALLACE |
| AVALANCHE PUBLISHING COMPANY, LIMITED | — | 0000001211 | 1902-07-25 | Suspended | |
| AVISTA CORPORATION | — | 0000027307 | 1902-03-18 | Active | SPOKANE |
| AZURITE MINING COMPANY | — | 0000001224 | 1902-03-14 | Suspended | CUPRUM |
| BANK OF COMMERCE, PAYETTE, LIMITED | — | 0000001373 | 1902-05-27 | Suspended | |
| BANVILLE MINING COMPANY, LIMITED | — | 0000001585 | 1902-10-31 | Suspended | |
| BARTLETT & PRENTISS CO. | — | 0000001687 | 1902-07-14 | Suspended | |
| BASIN MINING COMPANY, LIMITED | — | 0000001773 | 1902-10-20 | Suspended | |
| BASIN WARD CORPORATION OF THE CHURCH OF JESUS CHRIST OF LATTER-DAY SAINTS | — | 0000001778 | 1902-01-06 | Suspended | |
| BEAVER CREEK GOLD MINING COMPANY (THE) | — | 0000001896 | 1902-05-26 | Suspended | |
| BELL CREEK CONSOLIDATED MINING COMPANY, LIMITED (THE) | — | 0000001948 | 1902-09-30 | Suspended | |
| BELLE OF THUNDER MOUNTAIN MINING COMPANY | — | 0000001966 | 1902-04-11 | Suspended | NAMPA |
| BENCH CANAL CO. | — | 0000002045 | 1902-12-29 | Active | |
| BERNARD MOUNTAIN GOLD MINING COMPANY, LTD. | — | 0000002108 | 1902-02-04 | Suspended | |
| BERNE CORPORATION OF THE CHURCH OF JESUS CHRIST OF LATTER-DAY SAINTS | — | 0000002093 | 1902-01-02 | Suspended | |
| BETHANY PRESBYTERIAN CHURCH OF ADA COUNTY, IDAHO | — | 0000002122 | 1902-03-22 | Suspended | |
| BIBBINS-MYER COMPANY, LIMITED (THE) | — | 0000002146 | 1902-10-04 | Suspended | |
| BIG CREEK MINING COMPANY, LIMITED | — | 0000002197 | 1902-09-26 | Expired | |
| BIG FOUR MINING COMPANY, LIMITED (THE) | — | 0000002231 | 1902-06-09 | Suspended | GRANGEVILLE |
| BLACK BONANZA MINING COMPANY (THE) | — | 0000002435 | 1902-01-11 | Suspended | CAMBRIDGE |
| BLACK HORNET MINING AND MILLING COMPANY, LTD. (THE) | — | 0000002707 | 1902-03-06 | Suspended | |
| BLACK JACK GOLD MINING AND MILLING CO. LIMITED | — | 0000002712 | 1902-09-18 | Suspended | LUCILLE |
| BLACK PINE COPPER MINING AND MILLING COMPANY (THE) | — | 0000002740 | 1902-01-20 | Suspended | FORNEY |
| BLACKFOOT GOLD MINING AND DEVELOPMENT COMPANY, LIMITED | — | 0000002502 | 1902-11-13 | Suspended | |
| BLACKFOOT LIGHT AND WATER COMPANY, LIMITED | — | 0000002643 | 1902-09-29 | Suspended | |
| BLACKFOOT LUMBER COMPANY, LTD. | — | 0000002647 | 1902-03-21 | Suspended | |
| BLACKFOOT MILL AND ELEVATOR COMPANY, LIMITED | — | 0000002661 | 1902-08-18 | Suspended | |
| BOISE ARTESIAN HOT AND COLD WATER COMPANY | — | 0000002503 | 1902-06-10 | Suspended | BOISE |
| BOISE GAS COMPANY LIMITED | — | 0000003146 | 1902-03-12 | Suspended | |
| BOISE GAS LIGHT AND POWER COMPANY LIMITED | — | 0000003151 | 1902-11-17 | Suspended | |
| BOISE INVESTMENT COMPANY LIMITED (THE) | — | 0000003188 | 1902-07-21 | Suspended | |
| BOISE LODGE NO. 77, I.O.O.F. | — | 0000003232 | 1902-12-24 | Suspended | |
| BOISE UNION BUILDING SUPPLY COMPANY LIMITED | — | 0000003372 | 1902-05-22 | Suspended | |
| BOISE VALLEY LAND COMPANY | — | 0000003439 | 1902-11-05 | Suspended | |
| BOSTON-IDAHO MINING COMPANY | — | 0000003700 | 1902-03-12 | Suspended | |