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AB-C-D-EF-G-HI-JKL-MNO-PQ-R-S-TUVWXYZ
Click on the alphabetic letter of the first word in a corporation's name ("the" is not considered to be the first word) and you will be taken to the alphabetical listing of the businesses that were incorporated in Colorado from 1861-1875.
Articles of Incorporation were filed through the Secretary of State's Office and through the Territorial Legislature. Records can thus be found in the Secretary of State's Incorporation Books and in the Legislative Session Laws.
1. If a corporation is filed with the Secretary of State's Office, the location entry will show the year of the business' incorporation, the book letter (A through F), and the page number.
2. If the corporation's charter was filed in the Legislative Session Laws then the location is listed by the year of incorporation and page number (pp) in that year's Session Laws.
| Corporation / Charter Title | Location |
| Abeyta Pass Toll Road Co. | 1873 E 195 |
| Abeyta Pass Wagon Road Co. | 1873 E 214 |
| Abriendo Avenue M. E. Church | 1873 E 152 |
| Aetna Tunnel Company | 1864 AB 151 |
| Aetna Tunnel of James Creek | 1866 C 173 |
Altonia Town Company |
1861 pp 506 + |
| Agricultural and Industrial Association of Southern Colorado | 1871 D 400 |
| Agricultural Ditch Company | 1874 E 305 |
| Alamosa Toll Road Company | 1873 E 212 |
| Alto and Verde Mining Company | 1876 F 427 |
| American & European Mining Association | 1874 E 425 |
| American Exploring Company of Philadelphia | 1866 pp 142 |
| American Mining Company | 1870 D 109 |
| Anderson Ditch Company | 1871 D 207 |
| Animas Canon Toll Road Company | 1876 F 407 |
| Antelope Park and San Juan Toll Road | 1873 E 132 |
| Antelope Park and Animas Valley Railroad Co. | 1873 E 204 |
| Antelope Park and Lake City Wagon Toll Road Company | 1875 F 41 |
| Apex and Gregory Wagon Road | 1861 pp 445 + |
| Apex and Gregory Wagon Road - amendment to charter | 1870 pp 159 |
| Apex Wagon Road Company | 1866 C 94 |
| Apex Mineral Railroad Company | 1874 B 334 |
| Annett Ditch Company | 1873 E 7 |
| Arapahoe, Jefferson and South Park Railroad Company | 1868 C 357 |
| Arapahoe County Ditch Company | 1869 C 530 |
| Arapahoe Peak and Middle Park Wagon Road Company | 1875 E 627 |
| Arapahoe Canal Company | 1876 F 280 |
| Archer Hose and Fire Company | 1873 E 28 |
| Argentine Silver Mining Company | 1865 AB 244 |
| Argentine Wagon Road Company | 1870 D 39 |
| Argentine Company | 1875 F 127 |
| Argentum Company | 1876 F 358 |
| Arium Prospecting and Beaver Creek Fluming & Mining Company | 1865 AB 264 |
| Arkansas Canon Water Power Company | 1870 D 192 |
| Arkansas Ditch and Irrigation Company - relief of | 1866 pp 172 |
| Arkansas & Pueblo Ditch and Ice Company | 1870 D 140 |
| Arkansas, Pueblo & Fountain Qui Bouille Ditch Company | 1865 pp 143 |
| Arkansas River Ditch and Flume Company | 1875 E 499 |
| Arkansas River Bridge Company | 1867 pp 94 + |
| Arkansas River Ferry Company | 1869 C 504 |
| Arkansas River Ferry and Bridge Company | 1867 pp 119 + |
| Arkansas River Mining Company | 1873 F 442 |
| Arkansas River Mining and Fluming Company | 1867 C 257 |
| Arkansas River Oil and Coal Mining Company | 1867 pp 95 + |
| Arkansas River Placer Mining Company | 1876 F 425 |
| Arkansas River Railroad and Irrigating Ditch Company | 1870 D 46 |
| Arkansas River, St. Charles Ditch and Irrigating Company | 1866 pp 188 |
| Arkansas River and St. Charles Ditch and Irrigating Company | 1867 pp 131 |
| Arkansas River & South Park Wagon Road and Bridge Company | 1868 C 386 |
| Arkansas River Wagon Road Company | 1875 F 76 |
| Arkansas Valley Coal Company | 1871 D 239 |
| Arkansas Valley Ditch and Irrigating Company | 1865 AB 179 |
| Arkansas Valley Ditch and Irrigation Company | 1867 pp 95 |
| Arkansas Valley Irrigating Company | 1874 E 222 |
| Arkansas Valley Irrigating & Milling Company | 1864 AB 59 |
| Arkansas Valley and New Mexico Railway Company | 1876 F 309 |
| Arkansas Valley Railway Company | 1871 D 380 |
| Arkansas Water Company | 1873 D 610 |
| Arnelt Ditch Company | 1873 E 7 |
| Aspinwall Tunnel Company | 1864 AB 83 |
| Atkins Silver Mining Company | 1866 C 151 |
| Atchison Topeka and Santa Fe Land Colonization Company | 1872 D 582 |
| Atlantic and Pacific Tunnel Company | 1863 AB 13 |
| Atlantic and Pacific Wagon Road Company | 1876 F 373 |
| Aurora Fluming and Mining Company | 1866 C 155 |
| Autbees, Charles - Charter of ferry across Arkansas River | 1861 pp 466 + |
| Badger Gold Mining and Fluming Company | 1865 E 583 |
| Baker's Park Wagon Road Company | 1873 E 216 |
| Baker's Park and Animas Valley Toll Road Company | 1875 |
| Bank of Canon | 1876 F 377 |
| Bank of Clear Creek County | 1876 F 240 |
| Bank of Colorado | 1861 pp 472 + |
| Bank of Lake City | 1876 F 191 |
| Bank's Mining Company | 1867 C 223 |
| Bar and Legal Library Association of the City of Denver | 1872 D 604 |
| Bare River Pioneer Exploring Company | 1865 AB 269 |
| Barlow Silver Mining Company | 1876 F 238 |
| Barney Silver Mining Company | 1868 C 371 |
| Bates Tunnelling Company | 1863 A 54 |
| Bates Lode Tunnel Company | 1864 A 104 |
| Bates Lode Tunnel and Mining Company | 1864 A 132 |
| Bay State and Colorado Mining Company | 1872 D 567 |
| Bear Canon and Black Hawk Wagon Road Co. | 1868 C 469 |
| Bear Canon Road Company | 1861 pp 480 + |
| Bear Canon Road Company - act to amend | 1862 pp 128 |
| Bear Canon Wagon Road Company | 1873 E 52 |
| Bear Creek Wagon Road Company | 1874 F 466 |
| Bear River Pioneer Exploring Company | 1865 B 72 |
| Bear River Wagon Road Company | 1875 F 146 |
| Bear and Turkey Creek Fluming Company | 1873 E 154 |
| Beaver Colony Ditch Company | 1873 E 120 |
| Beaver Creek and Pennsylvania Mining & Flumming Company | 1866 C 23 |
| Beaver Creek Wagon Road Company | 1872 D 492 |
| Beaver Tail Ditch, Mining and Fluming Company | 1866 C 105 |
| Belden and Tennal Mining Company | 1875 F 74 |
| Belmont Ditch, Mining and Fluming Company | 1866 C 73 |
| Bennet Gold and Silver Mining and Manufacturing Company | 1869 C 497 |
| Bent's Fort Bridge Company | 1869 C 525 |
| Bent's Fort Bridge and Ferry Company | 1870 D 44 |
| Bergen Ditch Company | 1873 E 40 |
| Bergen Ranch and Beaver Creek Wagon Road Company | 1868 C 369 |
| Bever Ditch Company | 1873 E 12 |
| Big Bend Ditch Company | 1874 E 249 |
| Big Bottom Ditch Company | 1864 A 65 |
| Big Thompson and Brickhorn Irrigating and Manufacturing Company | 1871 D 347 |
| Big Thompson Ditch Association | 1874 E 446 |
| Big Thompson and Platte River Ditch Company | 1865 B 154 |
| Big Thompson and Platte River Irrigating and Manufacturing Company | 1871 D 403 |
| Black Hawk - Act to Amend Charter | 1865 pp 144 |
| Black Hawk - Act to Amend Charter | 1866 pp 93 + |
| Black Hawk - Act to Amend Charter | 1870 pp 161 |
| Black Hawk Cemetery Company | 1874 E 227 |
| Black Hawk, Central City and Nevadaville Horse Railway Company | 1872 D 444 |
| Black Hawk, Central City and Nevadaville Railway Company | 1872 D 514 |
| Black Hawk Water Company | 1871 D 368 |
| Blue River and Buffalo Flats Ditch Company | 1861 pp 441 + |
| Blue River Mining Company | 1864 A 137 |
| Blue River Mining, Fluming, Ditching, Tunnelling amd Milling Company | 1865 B 5 |
| Blue River Mining, Ditching, Tunnelling and Flumming Company | 1864 A 136 |
| Bobtail Tunnel Company | 1863 A 21 |
| Boggsville Bridge Company | 1869 C 550 |
| Boston Prospecting and Mining Company | C 278 |
| Boston Silver Mining Company | 1873 F 42 |
| Bohemian Mining and Smelting Company | 1865 C 22 |
| Boulder Aqueduct Company | 1875 F 16 |
| Boulder & Caribou Mineral Railway Company | 1871 D 388 |
| Boulder & Caribou Wagon Road | 1870 D 178 |
| Boulder & Central City Wagon Road Co. | 1864 A 139 |
| Boulder City - Acts concerning lots and blocks | 1865 pp130 |
| Boulder County Centennial Association | 1875 F 9 |
| Boulder County Industrial Association | 1874 E 440 |
| Boulder & Fort Lupton Bridge & Railroad Company | C 429 |
| Boulder Horse Railroad Company | 1895 E 528 |
| Boulder & Larimer Counmty Irrigating and Manufacturing Ditch Company | 1894 E 501 |
| Boulder & Left Hand Ditch Company | 1873 E 174 |
| Boulder Manufacturing and Mining Company | 1870 D 204 |
| Boulder Methodist Episcopal Church | 1872 D 449 |
| Boulder & Middle Park Wagon Road Company | 1875 E 549 |
| Boulder Mining and Manufacturing Company | 1870 D 124 |
| Boulder Valley and Black Hawk Wagon Road Company | 1864 A 78 |
| Boulder Valley and Central City Wagon Road Company | 1865 pp 135 |
| Boulder Valley and Central City Wagon Road Company | 1867 pp 124 |
| Boulder and Weld County Ditch Company | 1866 pp 125 |
| Boulder and White Rock Ditch Company | 1873 E 168 |
| Boulevard & Sloan Lake Stearn Navigation Company | 1874 E 295 |
| Bournan Silver Mining Company | C 487 |
| Box Elder Ditch Company | 1872 D 439 |
| Box Park Mining Company | 1870 D 101 |
| Bradway Tunnelling & Silver Mining Company | 1875 E 634 |
| Breckinridge, Buckskin Joe & Hamilton Wagon Road Company | 1861 pp 497 + |
| Broadway Mining Association | 1865 C 124 |
| Buckeye Mining & Tunneling Company | 1876 F 235 |
| Buckhorn Irrigation Ditch Company | 1873 D 613 |
| Buckskin Joe Ditch Company | 1861 pp 479 + |
| Buckskin Joe Mining and Fluming Company | 1865 B 102 |
| Buford, William - Toll Bridge on Boulder Creek | 1867 pp 136 + |
| Bullion City Town Company | 1873 E 209 |
| Bullion Mining, Fluming and Exploring Company | 1867 C 223 |
| Bunn Ditch Company | 1871 D 262 |
| Burdsal Silver Mining Company | 1865 C 13 |
| Burlington Flouring Mill | 1865 A 181 |
| Burlington & Jameston Railroad Company | 1871 D 199 |
| Burlington Mill Company | 1871 D 250 |
| Butte Ditch Company | 1865 B 111 |
| Butterfields Overland Dispatch Company | 1866 pp 113 |
| Butterfield Smoky Hill Wagon Road Company | 1865 B 92 |
| Byers and Dailey | 1864 A 99 |
last modified May 03, 2007