COMPANIES

&

PRODUCTS"BigFour"accounting/auditfirmsCHAPTER

01Overview&BigFourcomparisonCombinedrevenueoftheBigFouraccounting/auditfirmsworldwidefrom2009to2024(inbillionU.S.dollars)CombinedrevenueoftheBigFouraccounting/auditfirmsworldwide2009-2024250200150212.2203.79189.44167.2157.05154.75148.28134.28127.75123.66120.3113.7110.3103.693.895.110050020092010201120122013201420152016201720182019202020212022202320243Description:ThecombinedglobalrevenueoftheBigFouraccountingfirmsreachedover212billionU.S.dollarsin2024,asignificantincreasewhencomparedtothepreviousyear.TheroughlyninebillionU.S.dollarincreasebetween2023and2024wasnoteable,however2022wasthebiggestyear-on-yeargrowtheverrecordedfortheBigFour,withanincreaseintheregionof22billionU.S.dollarswhencomparedto2021.

ReadmoreNote(s):Worldwide;2009to2024Source(s):Deloitte;EY;KPMG;PwCRevenueoftheBigFouraccounting/auditfirmsworldwidein2024(inbillionU.S.dollars)RevenueoftheBigFouraccounting/auditfirmsworldwidein20248067.270605040302010055.451.238.4DeloittePwCEYKPMG4Description:Withatotalrevenueofover67billionU.S.dollars,DeloittewasthelargestoftheBigFouraccountingfirmsin2024.The?combinedrevenueofthefirmsincreasedsteadilyinthelastdecadeandexceeded212billionU.S.dollarsin2024.

ReadmoreNote(s):Worldwide;2024Source(s):Deloitte;EY;KPMG;PwCRevenueoftheBigFouraccounting/auditfirmsworldwidein2024,byfunction(inbillionU.S.dollars)RevenueoftheBigFouraccounting/auditfirmsworldwidebyfunction2024Audit/Assurance/AERS*Advisory/Consulting**TaxOther***807056011.35040302010012.66.212.130.28.723.3115.616.320.919.48PwC17.3EY13.4DeloitteKPMG5Description:In2024,Deloitteroughly21billionU.S.dollarsinrevenuefromitsassurancesegment,makingittheleaderintheassurancemarketamongtheBigFour.ReadmoreNote(s):Worldwide;2024;*PwC,Ernst&Young-"Assurance";KPMG-"Audit";Deloitte-"AERS-Auditandenterpriseriskservices"**Deloitte-"Consulting";Ernst&Young,PwC&KPMG-"Advisory"***Deloitte-"FinancialAdvisory";Ernst&[...]

ReadmoreSource(s):Deloitte;EY;KPMG;PwCRevenueoftheBigFouraccounting/auditfirmsworldwidein2024,bygeographicalregion(inbillionU.S.dollars)RevenueoftheBigFouraccounting/auditfirmsworldwidebyregion2024AmericasEMEA*AsiaPacific**807060504030201009.59.321.57.221.74619.917.236.424.34PwC24.1EY15.2DeloitteKPMG6Description:Deloittereportedtotalrevenuefiguresofaround67billionU.S.dollarsin2024,thehighestamongtheBigFouraccountingfirms.ThecompanyalsoledtherankingsintheAmericas,butitwasPwCwhocameoutontopintheEMEAregion(Europe,theMiddleEast,andAfrica).ReadmoreNote(s):Worldwide;2024;*Ernst&Young-EMEIA:Europe,MiddleEast,India&Africa;PwC-EMEA:MiddleEastandAfrica,WesternEurope,andCentralandEasternEurope;KPMG-EMEA:Europe,MiddleEast,AfricaandIndia;**Ernst&Young-[...]

ReadmoreSource(s):Deloitte;EY;KPMG;PwCNumberofemployeesoftheBigFouraccounting/auditfirmsworldwidein2024NumberofemployeesoftheBigFouraccounting/auditfirmsworldwide2024500,000460,300450,000400,000350,000300,000250,000200,000150,000100,00050,0000393,025370,393275,288DeloitteEYPwCKPMG7Description:In2024,theBigFouraccountingfirmsincreasedtheirnumberofemployees.Deloitteincreasedtheirworkforcebyroughly3,500between2023and2024.?TheBigFour-additionalinformationTheBigFourarethefourgloballeadersinauditingandaccounting.Deloitte,PricewaterhouseCoopers(PwC),ErnstandYoung(EY),andKPMGtogetherauditthemajorityofpubliclytradedcompaniesworldwide.In2024,Deloitteemployedthelargestnumberofpeoplewithaworkforceof[...]

ReadmoreNote(s):Worldwide;2024Source(s):Deloitte;EY;KPMG;PwCGrossrevenueoftheBigFouraccounting/auditfirmsintheUnitedStatesin2023(inbillionU.S.dollars)GrossrevenueoftheBigFouraccounting/auditfirmsintheU.S.20233532.673025201510522.7521.4612.20DeloittePwCErnst&YoungKPMG8Description:DeloittegeneratedthelargestrevenueoftheBigFouraccountingfirmsintheUnitedStatesin2023,earningapproximately10billionU.Sdollarsmorethantheirnearestcompetitor,PricewaterhouseCoopers(PwC).TherankingmirroredtherevenueoftheBigFourfirmsworldwide,asDeloitteandPwCagaincompetedforthetoptwopositions.ReadmoreNote(s):UnitedStates;2023Source(s):AccountingTodayCHAPTER

02DeloitteRevenueofDeloitteworldwidefrom2006to2024(inbillionU.S.dollars)RevenueofDeloitteworldwide2006-202475655545352515200620072008200920102011201220132014201520162017201820192020202120222023202410Description:Deloittegeneratedarevenueofapproximately67.2billionU.S.dollarsworldwidein2024.Thiswasanincreaseofroughly2.3billionU.S.dollarswhencomparedtothepreviousyear.Thismeantthat2024wasthemostprofitablefiscalyeareverforDeloitte.ReadmoreNote(s):Worldwide;2006to2024;fiscalyearendsMay31Source(s):DeloitteRevenueofDeloitteworldwidefrom2006to2024,byserviceline(inbillionU.S.dollars)RevenueofDeloitteworldwidebyserviceline2006-2024Auditandriskadvisory*ConsultingTaxandlegalFinancialAdvisory8070605040302010055.15.39.911.310.34.38.93.88.73.83.67.98.33.47.330.23.36.929.63.16.736.52.86.125.82.75.92.35.620.82.46219.8218.716.51.95.47.55.714.313.11.511.412.2510.49.74.34.58.612.320116.36.55.220.120.918.416.415.215.515.513.912.711.91313.113.313.313.51111.79.820062007200820092010201220132014201520162017201820192020202120222023202411Description:AlloftheservicelinesofferedbyDeloittehaveincreasedinannualrevenueforoveradecade.Thetaxandlegallineofthefirmgrewsignificantlywhencomparedto2023.Thisservicelinegeneratedapproximately11.3billionU.S.dollarsofrevenue(outofatotalrevenueof67.2billionU.S.dollars)in2024.ReadmoreNote(s):Worldwide;2006to2024;fiscalyearendsMay31.Source(s):DeloitteRevenueofDeloitteworldwidefrom2006to2024,byregion(inbillionU.S.dollars)RevenueofDeloitteworldwidebyregion2006-2024AmericasEuropa/MiddleEast/AfricaAsiaPacific8070605040309.5101021.58.519.17.57.1156.618.85.85.216.7515.054.84.914.54.94.212.53.212.33.43.61011.912.12.59.211.110.9201002.17.710.311.336.410.235.930.725.325.224.222.120.419.317.418.315.516.414.312.912.51311.510.3200620072008200920102011201220132014201520162017201820192020202120222023202412Description:TherevenueofDeloitteworldwidereachedover67billionU.S.dollarsin2024,witharound36billionU.S.dollarsofthattotalcomingfromrevenueintheAmericasregion.RevenuefromtheAsiaPacificandEurope,theMiddleEast,andAfrica(EMEA)regionscombinedamountedtoapproximately31billionU.S.dollars.ReadmoreNote(s):Worldwide;2006to2024;fiscalyearendsMay31.Source(s):DeloitteNumberofDeloitteemployeesworldwidefrom2006to2024(in1,000s)NumberofDeloitteemployeesworldwide2006-2024500460.3456.8345040035030025020015010050411.95345.37334.8312.03286.21263.9244.4225210.42001931821691701651501350200620072008200920102011201220132014201520162017201820192020202120222023202413Description:Deloitteemployedroughly460,000membersofstaffworldwidein2024.Between2006and2024,Deloitteincreaseditsnumberofemployeesbyover325,000people.

ReadmoreNote(s):Worldwide;2006to2024;fiscalyearendsMay31.Source(s):DeloitteNumberofDeloitteemployeesworldwidefrom2010to2024,byregionNumberofDeloitteemployeesworldwidebyregion2010-2024AmericasEurope/MiddleEast/AfricaAsiaPacific500,000450,000400,000350,000300,000250,000200,000150,000100,00050,000020102011201220132014201520162017201820192020202120222023202414Description:Deloitteemployedaround460,000peopleworldwidein2024,withapproximately216,000ofthoseemployeesbasedintheAmericasregion.Theaccountingfirmhascontinuedtoincreaseitsglobalworkforceandhasalsoreportedsteadyrevenuegrowthacrossallregions.ReadmoreNote(s):Worldwide;2010to2024;fiscalyearendsMay31.Source(s):DeloitteNumberofDeloitteemployeesworldwidefrom2010to2024,bylevelNumberofDeloitteemployeesworldwidebylevel2010-2024Professionalstaff*AdministrativestaffPartners500,000450,000400,000350,000300,000250,000200,000150,000100,00050,000020102011201220132014201520162017Level201820192020202120222023202415Description:Deloitteemployedapproximately65,000membersofstaffinadministrativerolesintheir2024fiscalyear.Deloitteisoneoftheworld'sfourleadingaccountancyfirms(alongwithPwC,EY,andKPMG).ItisheadquarteredinNewYorkCity.Thecompany'sservicesareaudit,consulting,financialadvisory,tax,andenterpriserisk.ReadmoreNote(s):Worldwide;2010to2024;fiscalyearendsMay31.Source(s):DeloitteCHAPTER

03PricewaterhouseCoopersAggregatedgrossrevenueofPwC2006to2024(inbillionU.S.dollars)AggregatedgrossrevenueofPwC2006-20246055.453.0950.35045.1443.0342.4540.6840302010037.735.935.3633.9532.0931.5129.2226.4226.526.5724.5222.1200620072008200920102011201220132014201520162017201820192020202120222023202417Description:TheaggregatedannualgrossrevenueofPricewaterhouseCoopersincreasedsteadilyfrom2006to2024.Inthefiscalyearof2024,PwCgeneratedapproximately55.4billionU.S.dollarsinaggregatedgrossrevenue.?PwC-additionalinformationPwCisoneofthefourlargestaccountingandauditfirmsintheworld.Thesefirms,knowncollectivelyasthe‘BigFour’,alsoincludeDeloitte,Ernst&Young(EY)andKPMG.PwCwasthesecondlargestoftheBigFourintermsofrevenuein2024,[...]

ReadmoreNote(s):Worldwide;2006to2024;FiscalyearendsJune30Source(s):PwCAggregatedrevenueofPwCfrom2010to2024,byserviceline(inbillionU.S.dollars)AggregatedrevenueofPwCbyserviceline2010-2024AssuranceAdvisoryTaxandlegalservices6050403012.611.7722.611.5820.7111.0417.0310.5516.0910.710.3213.319.468.9523.318.337.948.77.788.897.377.467.214.377.096.2112.2511.362010010.498.0819.48202418.73202318.01202217.05201817.38201916.39202017.07202115.97201714.86201215.07201614.14201114.16201513.27201012.98201313.33201418Description:AccountingfirmPricewaterhouseCoopers(PwC)reportedgrowthacrossallthreeofitsmainservicelinesin2024,helpingthefirmachieveanannualgrossrevenueofover55billionU.S.dollars.PwCgeneratedapproximately19.5billionU.S.dollarsfromitsassuranceservices,withthefirm’sadvisoryservicesgeneratingthehighestamountofrevenue,increasingbyroughly700millionU.Sdollarsbetween2023and2024.

ReadmoreNote(s):Worldwide;2010to2024;FiscalyearendsJune30Source(s):PwCAggregatedrevenueofPwCfrom2013to2024,byregion(inbillionU.S.dollars)AggregatedrevenueofPwCbyregion2013-2024AmericasMiddleEastandAfricaAsiaWesternEuropeAustralasiaandPacificIslandsAsiaandAsiaPacificCentralandEasternEuropeEurope,MiddleEast,andAfrica6050403020100201320142015201620172018201920202021*20222023202419Description:In2024,PricewaterhouseCoopers(PwC)generatedaround40percentofitstotalrevenuefromtheAmericasregion.TheAmericascontinuedtobethemostimportantregionintermsofrevenueforthefirm,generatingaround24.3billionU.S.dollarsin2024.ReadmoreNote(s):Worldwide;2013to2024;FiscalyearendsJune30Source(s):PwCNumberofPwCemployeesworldwidefrom2010to2024NumberofPwCemployeesworldwide2010-2024Numberofemployees050,000100,000150,000200,000250,000300,000350,000400,000201020112012201320142015201620172018201920202021202220232024161,718168,710180,529184,235195,433208,109223,468236,235250,930276,005284,258295,371327,947364,232370,39320Description:TheglobalworkforceofconsultingandaccountancyfirmPwCincreasedsignificantlyoverthelastdecade.Thisfiguregrewtoroughly370,400employeesin2024.?PwCPwCisoneofthelargestprofessionalservicesfirmsintheworld,specializinginauditingandaccountancyservices.Theiroperationsaredividedintothreeservicelines:assurance,whichdealsprimarilywithfinancialaudits;advisory,whichprovidesbroadermanagementconsultancyservices;andtax,whichprovidestax[...]

ReadmoreNote(s):Worldwide;2010to2024;FiscalyearendsJune30.Source(s):PwCCHAPTER

04Ernst&YoungCombinedrevenueofEYworldwidefrom2009to2024(inbillionU.S.dollars)CombinedrevenueofEYworldwide2009-202460504051.249.445.424037.236.434.831.429.6328.663027.3725.8324.4222.8821.44200921.262010201002011201220132014201520162017201820192020202120222023202422Description:In2024,EYgeneratedarecordglobalrevenueofapproximately51billionU.S.dollars.Between2011and2024,theannualrevenueofEYgrewexponentially.Theprofessionalpartnershipfirmsawtheirhighestgrowthinalmosttwodecadesinfiscalyear2022.ReadmoreNote(s):Worldwide;2009to2024;financialyearendedJune30Source(s):EYCombinedrevenueofEYworldwidefrom2009to2024,byserviceline(inbillionU.S.dollars)CombinedrevenueofEYworldwidebyserviceline2009-2024AssuranceTaxConsultingStrategyandtransactions60504030201002009201020112012201320142015201620172018201920202021202220232024Serviceline23Description:In2024,thecombinedglobalrevenueofaccountingfirmEYreachedover50billionU.S.dollars.Morethanone-thirdofthiscamefromitsassuranceservices.Thefirm’staxandassuranceservicelineshadthebiggestyear-on-yeargrowth,increasingby6.3percentrespectivelybetween2023and2024.ReadmoreNote(s):Worldwide;2009to2024;financialyearendsJune30Source(s):EYCombinedrevenueofEYworldwidefrom2009to2024,byregion(inbillionU.S.dollars)CombinedrevenueofEYworldwidebyregion2009-2024EMEIA*AmericasAsiaPacificJapan**6050403020100200920102011201220132014201520162017201820192020202120222023202424Description:Ernst&Young(EY)generatedrevenueof51.2billionU.S.dollarsin2024,wherealmosthalfofwhichcamefromtheAmericasregion.ThenextlargestshareofrevenuewasgeneratedfromthegeographicareaofEurope,theMiddleEast,India,andAfrica(EMEIA).ReadmoreNote(s):Worldwide;2009to2024;financialyearendedJune30Source(s):EYNumberofemployeesofEYworldwide2009to2024,byservicelineNumberofemployeesofEYworldwidebyserviceline2009-2024AssuranceConsultingTaxPracticesupportStrategy&transactions450,000400,000350,000300,000250,000200,000150,000100,00050,0000200920102011201220132014201520162017201820192020202120222023202425Description:Ernst&Young(EY)employedalmost400,000peopleworldwidein2024,witharound126,000ofthoseemployeesworkingintheassuranceservicelineand73,000employedinthetaxservicessector.

ReadmoreNote(s):Worldwide;2009to2024;financialyearendedJune30Source(s):EYNumberofemployeesofEYworldwidefrom2009to2024,byregionNumberofemployeesofEYworldwidebyregion2009-2024EMEIA*AmericasAsia-PacificGlobalentitiesJapan**450,000400,000350,000300,000250,000200,000150,000100,00050,0000200920102011201220132014201520162017201820192020202120222023202426Description:In2024,EYhadatotalglobalworkforceofalmost400,000people.ThemajorityofemployeesworkedintheEMEIAregionwithatotalofroughly157,000.ReadmoreNote(s):Worldwide;2009to2024;financialyearendsJune30Source(s):EYCHAPTER

05KPMGRevenueofKPMGworldwidefrom2007to2024(inbillionU.S.dollars)RevenueofKPMGworldwide2007-2024454038.436.434.64353025201510532.1329.7529.2228.9626.425.4224.8224.4423.4223.0322.6922.7120.6320.1119.81020072008200920102011201220132014201520162017201820192020202120222023202428Description:In2024,KPMGgeneratedarecordrevenueof38.4billionU.S.dollars.Thiswasanincreaseofapproximately2billionU.S.dollarscomparedtothepreviousyear.?KPMG-additionalinformationKPMGisoneoftheleadingaccountingandauditfirmsintheworld,andhasgeneratedmorethan20billionU.S.dollarsinrevenueannuallysince2008.Thecurrentcompanywasfullyestablishedin1987withthemergingofPeatMarwickInternationalandKPM(KlynveldMainGoerdeler).Thefirmis[...]

ReadmoreNote(s):Worldwide;2007to2024;fiscalyearendsSeptember30ofeachyear.Source(s):KPMGRevenueofKPMGworldwidefrom2010to2024,byfunction(inbillionU.S.dollars)RevenueofKPMGworldwidebyfunction2010-2024AuditAdvisoryTax45403530258.77.97.357.026.626.346.485.835.565.279.095.319.116.34.978.244.697.544.867.8615.9201510515.444.156.5713.6511.4711.9511.6710.189.7413.412.611.85202211.15201811.18201911.07202011.46202110.48201110.31201210.21201310.46201410.03201510.12201610.399.91020102017Function2023202429Description:In2024,KPMGgeneratedarecordglobalrevenue.Theirauditservicelinealonecreatedaturnoverof13.4billionU.S.dollars.ReadmoreNote(s):Worldwide;2010to2024;fiscalyearendedSeptember30ofeachyear.Source(s):KPMGRevenueofKPMGworldwidefrom2010to2024,byregion(inbillionU.S.dollars)RevenueofKPMGworldwidebyregion2010-2024EMA*AmericasAsiaPacific454035302566.16.315.975.144.8811.15.2615.24.424.063.868.5114.63.793.913.714.077.454201510511.883.436.3711.7211.2210.4811.510.029.347.887.0517.215.714.28202114.62202212.45201412.98201812.89201912.74202011.66201111.51201211.64201311.31201511.34201610.83201002017Region2023202430Description:KPMGgeneratedapproximately1