[["Union Pacific Corp.",131],["BNSF Railway Co.",98],["Brotherhood of Locomotive Engineers \u0026 Trainmen",73],["Norfolk Southern Corp.",55],["American Airlines Group Inc.",52],["CSX Corp.",49],["United Airlines Holdings Inc.",42],["International Brotherhood of Teamsters",41],["SMART Union",35],["Brotherhood of Maintenance of Way Employes Division-International Brotherhood of Teamsters",31],["Southwest Airlines Co.",31],["Canadian National Railway Company",27],["Transport Workers Union of America",24],["Association of Flight Attendants Association of Flight Attendants Communication Workers of America",19],["Brotherhood of Railroad Signalmen",16],["International Association of Machinists and Aerospace Workers",16],["Air Line Pilots Association International",14],["Metro-North Commuter Railroad Co.",14],["U.S. Airways Group Inc.",14],["International Association of Sheet Metal Air Rail \u0026 Transportation Workers",13],["Delta Air Lines Inc.",12],["International Association of Machinists \u0026 Aerospace Workers",11],["Kansas City Southern",11],["Republic Airways Holdings Inc.",10],["Spirit Airlines Inc.",10],["International Brotherhood of Electrical Workers",9],["Association of Flight Attendants-CWA",8],["NetJets IP LLC",8],["New Jersey Transit Corp.",8],["American Train Dispatchers Association",7],["Service Employees International Union",7],["United Parcel Service Inc.",7],["Air Methods Corp.",6],["Consolidated Rail Corp.",6],["Frontier Airlines Inc.",6],["ABX Air Inc.",5],["Canadian Pacific Railway Ltd.",5],["NJ Transit Corp.",5],["Office \u0026 Professional Employees International Union",5],["Southern Air Holdings Inc.",5],["Genesee \u0026 Wyoming Inc.",4],["Horizon Air Industries Inc.",4],["Watco Companies LLC",4],["Command Security Corp.",3],["Hawaiian Holdings Inc.",3],["Kalitta Air LLC",3],["Southeastern Pennsylvania Transportation Authority",3],["The Belt Railway Co. of Chicago",3],["Transdev SA",3],[" Airline Professionals Association Teamsters Local 1224 ",2],["Air Serv Corp.",2],["Allegiant Travel Co.",2],["Berkshire Hathaway Inc.",2],["Communications Workers of America",2],["Gate Gourmet Inc.",2],["Indiana Harbor Belt Railroad Co.",2],["International Brotherhood of Boilermakers Iron Ship Builders Blacksmiths Forgers \u0026 Helpers",2],["Keolis Commuter Services LLC",2],["Liberty Mutual Insurance Group",2],["Long Island Rail Road Co.",2],["Nationwide Mutual Insurance Co.",2],["NetJets Inc.",2],["Northeast Illinois Regional Commuter Railroad Corp.",2],["Norwegian Air Shuttle ASA",2],["UNITE HERE",2],["United Continental Holdings Inc.",2],["A\u0026R Logistics Inc.",1],["AMR Corporation",1],["Air India Ltd.",1],["Air Menzies International Ltd.",1],["AirTran Holdings, Inc.",1],["Alaska Air Group Inc.",1],["American Federation of Labor \u0026 Congress of Industrial Organizations",1],["Atlas Air Worldwide Holdings Inc. ",1],["Avelo Airlines",1],["BlueCross BlueShield of New Jersey",1],["Breeze Airways",1],["Brightline Trains Florida LLC",1],["C.H. Robinson Worldwide Inc.",1],["CSX Corporation",1],["Canadian Pacific Kansas City",1],["Cape Air",1],["Cathay Pacific Airways Ltd.",1],["Chanel SA",1],["Dow Inc.",1],["Ennis Inc.",1],["ExpressJet Airlines Inc.",1],["Fraternal Order of Police",1],["G2 Secure Staff LLC",1],["Gallagher Bassett Services Inc.",1],["Global Crossing Airlines Group Inc.",1],["Honeywell International Inc.",1],["Horizon Blue Cross Blue Shield of New Jersey",1],["Intercontinental Terminals Co.",1],["International Longshoremen's Association",1],["Iowa Interstate Railroad LLC",1],["JetBlue Airways Corp.",1],["Koninklijke Vopak NV",1],["Level 3 Communications Inc.",1],["Menzies Aviation PLC",1],["Mesa Air Group, Inc.",1],["Metropolitan Transportation Authority",1],["National Benefit Services",1],["National Railway Labor Conference Inc.",1],["Nike Inc.",1],["North Memorial Health",1],["Old World Industries Inc.",1],["PSA Airlines Inc.",1],["Paducah \u0026 Louisville Railway Inc.",1],["Patriot Rail Co. LLC",1],["Port Authority Transit Corp.",1],["Railserve Inc.",1],["Retirement Systems of Alabama",1],["Road \u0026 Rail Services Inc.",1],["SEIU Local 1",1],["Sheet Metal Air Rail and Transportation Workers",1],["Sheet Metal Workers International Association",1],["Shell PLC",1],["SkyWest Inc.",1],["Sun Country Airlines",1],["The Boeing Co.",1],["The Lubrizol Corp.",1],["The Marmon Group",1],["Transportation Communications Union",1],["Transtar Inc.",1],["Turner Industries Group LLC",1],["Wexford Capital LP",1],["World Airways Inc.",1]]