Esta é uma lista parcial das companhias ferroviárias operantes dos Estados Unidos da América. O país possui aproximadamente 240.000 km de ferrovias.
Ferrovias cargueiras Ferrovias de 1ª classe (ferrovias grandes) BNSF Railway (BNSF) CSX Transportation (CSXT) Guilford Rail System (GRS) Kansas City Southern Railway (KCS) Norfolk Southern (NS) Union Pacific Railroad (UP) Canadian National Railway (CN) Canadian Pacific Railway (CP)
Ferrovias regionais Alabama and Gulf Coast Railway (AGR) Alaska Railroad (ARR) Bessemer and Lake Erie Railroad (BLE) Buffalo and Pittsburgh Railroad (BPRR) Central Oregon and Pacific Railroad (CORP) Dakota, Minnesota and Eastern Railroad (DME) Dakota, Missouri Valley and Western Railroad (DMVW) Duluth, Missabe and Iron Range Railway (DMIR) Elgin, Joliet and Eastern Railway (EJE) Florida East Coast Railway (FEC) Iowa, Chicago and Eastern Railroad (ICE) Iowa Interstate Railroad (IAIS) Kansas and Oklahoma Railroad (CKRY) Kyle Railroad (KYLE) Missouri and Northern Arkansas Railroad (MNA) Montana Rail Link (MRL) Montreal, Maine and Atlantic Railway (MMA) Nebraska, Kansas and Colorado RailNet (NKCR) Nebraska Central Railroad (NCRC) Nebraska Northeastern Railway (NENE) New York, Susquehanna and Western Railway (NYSW) Northern Plains Railroad Paducah and Louisville Railway (PAL) Palouse River and Coulee City Railroad (PCC) Portland and Western Railroad (PNWR) Providence and Worcester Railroad (PW) Red River Valley and Western Railroad (RRVW) South Kansas and Oklahoma Railroad (SKOL) Springfield Terminal Railway (ST) Texas Mexican Railway (TM) Texas Pacifico Transportation Tuscola and Saginaw Bay Railway (TSBY) Wheeling and Lake Erie Railway (WE) Wisconsin and Southern Railroad (WSOR)
Ferrovias locais Aberdeen, Carolina and Western Railway (ACWR) Aberdeen and Rockfish Railroad (AR) Acadiana Railway (AKDN) Alabama and Tennessee River Railway (ATN?) Albany and Eastern Railroad (AERC) Alexander Railroad (ARC) Algers, Winslow and Western Railway (AWW) Aliquippa and Ohio River Railroad Almanor Railroad (AL) AN Railway (AN) Angelina and Neches River Railroad (ANR) Ann Arbor Railroad (AA) Apache Railway (APA) Arcade and Attica Railroad (ARA) Arizona and California Railroad (ARZC) Arizona Central Railroad (AZCR) Arizona Railroad Arkansas and Missouri Railroad (AM) Arkansas and Oklahoma Railroad Arkansas, Louisiana and Mississippi Railroad (ALM) Arkansas Midland Railroad (AKMD) Ashland Railway (ASRY) AT&L Railroad (ATLT) Athens Line (ABR) Atlantic and Western Railway (ATW) B&H Rail Corporation (BH) Batten Kill Railroad Bauxite and Northern Railway (BXN) Bay Colony Railroad (BCLR) Bay Line Railroad (BAYL) Belvidere and Delaware River Railway (BDRV) Blacklands Railroad (BLR) Blackwell and Northern Railway (BNR) Bloomer Line (BLOL) Border Pacific Railroad (BOP) Buckingham Branch Railroad (BB) Caddo Valley Railroad Caldwell County Railroad (CWCY) Caney Fork and Western Railroad (CFWR) Carolina Coastal Railway Carolina Southern Railroad (CALA) Carrizo Gorge Railway (CZRY) Cascade and Columbia River Railroad (CSCD) Catskill Mountain Railroad (CMRR) Cedar Rapids and Iowa City Railway (CIC) Central Columbiana and Pennsylvania Railway (CQPA) Central Michigan Railway (CMGN) Central Montana Rail (CM) Central New England Railroad (CNZR) Central Railroad of Indiana (CIND) Central Railroad of Indianapolis (CERA) Chattahoochee and Gulf Railroad (CHAT) Chattahoochee Industrial Railroad (CIRR) Chattooga and Chickamauga Railway (CCKY) Chesapeake and Albemarle Railroad (CA) Chicago SouthShore and South Bend Railroad (CSS) City of Prineville Railway (COP) Claremont Concord Railroad (CCRR) Clarendon and Pittsford Railroad (CLP) Colorado, Kansas and Pacific Railway Columbia Basin Railroad (CBRW) Columbia and Cowlitz Railway (CLC) Columbus and Greenville Railway (CAGY) Columbus and Ohio River Rail Road (CUOH) Commonwealth Railway (CWRY) Conecuh Valley Railroad (COEH) Connecticut Southern Railroad (CSO) Copper Basin Railway (CBRY) D and I Railroad (DAIR) Dakota Northern RailroadAltamont Press (February 6 2006), North Dakota gets a new railroad: BNSF sheds more area branch lines. Retrieved February 6 2006. Dakota Short Line Dardanelle and Russellville Railroad (DR) De Queen and Eastern Railroad (DQE) Delaware-Lackawanna Railroad Delta Southern Railroad (DSRR) Depew, Lancaster and Western Railroad (DLWR) Dubois County Railroad (DCRR) East Cooper and Berkeley Railroad (ECBR) East Tennessee Railway (ETRY) Eastern Alabama Railway (EARY) Eastern Shore Railroad (ESHR) Eastern Idaho Railroad (EIRR) Eastern Maine Railway (EMR) Effingham Railroad (EFRR) El Dorado and Wesson Railway El Dorado and Western Railway Elkhart and Western Railroad Escanaba and Lake Superior Railroad (ELS) Everett Railroad (EV) Falls Road Railroad (FRR) Finger Lakes Railway (FGLK) Florida Central Railroad (FCEN) Florida Midland Railroad (FMID) Florida Northern Railroad (FNOR) Florida West Coast Railroad (FWCR) Fredonia Valley Railroad (FVRR) Fulton County Railroad (FC) Fulton County Railway (FCR) Georgetown Railroad (GRR) Georgia and Florida RailNet (GFRR) Georgia Central Railway (GC) Georgia Midland Railroad (GMR) Georgia Northeastern Railroad (GNRR) Georgia Southwestern Railroad (GSWR) Georgia Woodlands Railroad (GWRC) Gettysburg and Northern Railroad Gloster Southern Railroad (GLSR) Golden Isles Terminal Railroad (GITM) Golden Triangle Railroad (GTRA) Grainbelt Corporation (GNBC) Grand Rapids Eastern Railroad (GR) Great Northwest Railroad (GRNW) Great Smoky Mountains Railroad (GSMR) Great Walton Railroad Company (GRWR) Great Western Railway of Colorado (GWR) Green Mountain Railroad (GMRC) Gulf, Colorado and San Saba Railway (GCSR) Hampton Railway Hampton and Branchville Railroad (HB) Hartwell Railroad (HRT) Heart of Georgia Railroad (HOG) Hollidaysburg and Roaring Spring Railroad Hollis and Eastern Railroad (HE) Hoosier Southern Railroad (HOS) Housatonic Railroad (HRR) Huntsville and Madison County Railroad Authority (HMCR) Huron and Eastern Railway (HESR) Idaho Northern and Pacific Railroad (INPR) Illinois and Midland Railroad (IMRR) Illinois RailNet (IR) Illinois Western Railroad Indiana Rail Road (INRD) Indiana Northeastern Railroad (IN) Indiana and Ohio Central Railroad Indiana and Ohio Railway (IORY) Indiana Southern Railroad (ISRR) Iowa Northern Railway (IANR) Iowa Northwestern Railroad (IANW) Iowa Traction Railroad (IATR) Juniata Valley Railroad (JVRR) Kankakee, Beaverville and Southern Railroad (KBSR) Kentucky and Tennessee Railway (KT) Keokuk Junction Railway (KJRY) Kiamichi Railroad (KRR) Knox and Kane Railroad (KKRR) Kosciusko and Southwestern Railway (KSRY?) KWT Railroad (KWT) Lake State Railway (LSRC) Lake Superior and Ishpeming Railroad (LSI) Lancaster and Chester Railway (LC) Laurinburg and Southern Railroad (LRS) Lewis and Clark Railway Little Rock and Western Railway (LRWN) Livonia, Avon and Lakeville Railroad (LAL) Louisiana and Delta Railroad (LDRR) Louisiana and North West Railroad (LNW) Louisville and Indiana Railroad (LIRC) Lowville and Beaver River Railroad Luxapalila Valley Railroad (LXVR) Lycoming Valley Railroad (LVRR) M and B Railroad (MB) (MNBR) Madison Railroad (CMPA) Maryland and Delaware Railroad (MDDE) Maryland Midland Railway Massachusetts Central Railroad (MCER) McCloud Railway (MCR) Meridian Southern Railway (MDS) Mid-Michigan Railroad (MMRR) Maryland Midland Railway (MMID) Middletown and Hummelstown Railroad (MIDH) Middletown and New Jersey Railway (MNJ) Milford-Bennington Railroad Minnesota, Dakota and Western Railway (MDW) Minnesota Northern Railroad (MNN) Minnesota Prairie Line (MPLI) Minnesota Southern Railway (MSWY) Mississippi Export Railroad (MSE) Mississippi and Skuna Valley Railroad (MSV) Mississippian Railway Cooperative (MSRW) Morristown and Erie Railway (ME) Mohawk, Adirondack and Northern Railroad Mount Hood Railroad (MH) Nash County Railroad (NCYR) Nashville and Eastern Railroad (NERR) Naugatuck Railroad (NAUG) Nebkota Railway (NRI) Nebraska Central Railroad (NCRC) Nebraska Northeastern Railway (NENE) New England Central Railroad (NECR) New England Southern Railroad New Hampshire Central Railroad New Hampshire Northcoast Corporation (NHN) New Hope and Ivyland Railroad New York and Atlantic Railway (NYA) New York and Greenwood Lake Railway (NYGL) New York and Lake Erie Railroad (NYLE) New York and Ogdensburg Railway (NYOG) Nittany and Bald Eagle Railroad (NBER) North Shore Railroad (NSHR) Northwestern Pacific Railway Octoraro Railroad Ogeechee Railway (OGEE) Ohio Central Railroad (OHCR) Ohio and Pennsylvania Railroad Ohio Southern Railroad Oil Creek and Titusville Lines (OCTL) Old Augusta Railroad (OAR) Ontario Central Railroad Ontario Midland Railroad (OMID) Otter Tail Valley Railroad (OTVR) Ouachita Railroad (OUCH) Panhandle Northern Railroad (PNR) Pee Dee River Railway Pearl River Valley Railroad (PRV) Pecos Valley Southern Railway (PVS) Pend Oreille Valley Railroad (POVA) Penn Eastern Rail Lines (PRL) Pickens Railway (PICK) Pioneer Valley Railroad (PVRR) Point Comfort and Northern Railway (PCN) Prescott and Northwestern Railroad (PNW) Progressive Rail (PGR) Puget Sound and Pacific Railroad (PSAP) R. J. Corman Railroad Bardstown Line (RJCR) R. J. Corman Railroad Cleveland Line (RJCL) R. J. Corman Railroad Central Kentucky Lines (RJCC) R. J. Corman Railroad Memphis Line (RJCM) R. J. Corman Railroad Western Ohio Lines (RJCW) R. J. Corman Railroad Pennsylvania Lines (RJCP) Rarus Railway (RARW) Reading Blue Mountain and Northern Railroad Redmont Railway (RRCI) Riceboro Southern Railway (RSOR) Rochester and Southern Railroad (RSR) Rock and Rail (RRRR) Rockdale, Sandow and Southern Railroad (RSS) Roscoe, Snyder and Pacific Railroad (RSAP) Sabine River and Northern Railroad (SRN) Saginaw Valley Railway Salt Lake, Garfield and Western Railway San Diego and Arizona Eastern Railway (SDAE) San Diego and Imperial Valley Railroad (SDIY) San Diego Northern Railroad (SDNR) San Joaquin Valley Railroad San Luis and Rio Grande Railroad (SLRG) San Luis Central Railroad (SLC) San Manuel Arizona Railroad (SMA) Sand Springs Railway (SS) Sandersville Railroad (SAN) Santa Fe Southern Railway (SFSR) Santa Maria Valley Railroad (SMV) St. Croix Valley Railroad St. Lawrence and Atlantic Railroad (SLR) St. Mary's Railroad (SM) Savannah Port Terminal Railroad (SAPT) Seminole Gulf Railway (SGLR) Sequatchie Valley Railroad (SQVR) Shamokin Valley Railroad (SVRR) Sierra Northern Railway (SERA?) Sisseton Milbank Railroad SMS Rail Service (SLRS) South Branch Valley Railroad (SBVR) South Central Florida Express (SCFE) South Central Tennessee Railroad (SCTR) Southern Freight Railroad (?) Southern Indiana Railway Southern Railroad of New Jersey (SRNJ) Stillwater Central Railroad (SLWC) Stockton Terminal and Eastern Railroad (STE) Stourbridge Railroad (SBRR) Sunflour Railroad Tacoma Rail Mountain Division (TMRW) Tenneken Railroad Tennessee Southern Railroad (TSRR) Texas-New Mexico Railroad (TNMR) Texas North Western Railway (TXNW) Texas and Northern Railway (TN) Texas Rock Crusher Railway (TXR) Thermal Belt Railway (TBRY) Three Notch Railroad (TNHR) Timber Rock Railroad (TIBR) Toledo, Peoria and Western Railway (TPW) Tomahawk Railway (TR) Toppenish, Simcoe and Western Railroad Trona Railway (TRC) Tulsa-Sapulpa Union Railway (TSU) Twin Cities and Western Railroad (TCWR) Tyburn Railroad (TYBR) Union County Industrial Railroad (UCIR) Utah Railway (UTAH) V and S Railway Valdosta Railway (VR)