company,rank,rank_change,revenue,profit,num of employees,sector,city,state,newcomer,ceo_founder,ceo_woman,profitable,prev_rank,CEO,Website,Ticker,Market Cap, Walmart,1,0,572754,13673,2300000,Retailing,Bentonville,AR,no,no,no,yes,1,C. Douglas McMillon,https://www.stock.walmart.com,WMT,352037, Amazon,2,0,469822,33364,1608000,Retailing,Seattle,WA,no,no,no,yes,2,Andrew R. Jassy,www.amazon.com,AMZN,1202717, Apple,3,0,365817,94680,154000,Technology,Cupertino,CA,no,no,no,yes,3,Timothy D. Cook,www.apple.com,AAPL,2443962, CVS Health,4,0,292111,7910,258000,Health Care,Woonsocket,RI,no,no,yes,yes,4,Karen Lynch,https://www.cvshealth.com,CVS,125204, UnitedHealth Group,5,0,287597,17285,350000,Health Care,Minnetonka,MN,no,no,no,yes,5,Andrew P. Witty,www.unitedhealthgroup.com,UNH,500468, Exxon Mobil,6,4,285640,23040,63000,Energy,Irving,TX,no,no,no,yes,10,Darren W. Woods,www.exxonmobil.com,XOM,371841, Berkshire Hathaway,7,-1,276094,89795,372000,Financials,Omaha,NE,no,no,no,yes,6,Warren E. Buffett,www.berkshirehathaway.com,BRKA,625468