Editing Big Four accounting firms (section)

== Revenue comparison ==
In 2010, Deloitte, with its 1.8% growth, was able to outpace PricewaterhouseCoopers' 1.5% growth, gaining "first place" in revenue size, and became the largest firm in the professional services industry. In 2011, PwC re-gained first place with 10% revenue growth. In 2013, these two firms claimed the top two spots with only a $200 million revenue difference, that is, within half a percent. However, Deloitte saw faster growth than PwC over the next few years (largely due to acquisitions) and reclaimed the title of largest of the Big Four in Fiscal Year 2016.<ref>{{Cite web |title=Deloitte announces record revenue of US$36.8&nbsp;billion |url=https://www2.deloitte.com/ng/en/pages/about-deloitte/articles/global-revenue-announcement-fy16.html |access-date=13 September 2020 |website=Deloitte |archive-date=30 September 2020 |archive-url=https://web.archive.org/web/20200930165423/https://www2.deloitte.com/ng/en/pages/about-deloitte/articles/global-revenue-announcement-fy16.html |url-status=dead }}</ref><ref>{{Cite web |title=FY16 global revenues rise to record US$35.9&nbsp;billion as PwC looks to future |url=https://www.pwc.com/jp/en/press-room/pwc-fy2016-global-revenues161004.html |access-date=13 September 2020 |website=PwC}}</ref>

{{See also|Accounting network#Global ranking}}
It was estimated that the Big Four had about a 67% share of the global accountancy market in 2012, while most of the rest was divided among so called mid-tier players, such as [[BDO Global|BDO]], [[Crowe Global]] and [[Grant Thornton]].<ref>{{Cite news |last=Fleming |first=Sam |date=12 Feb 2014 |title=Accountants PwC, Deloitte, KPMG and EY face taming moves |work=[[Financial Times]] |url=https://www.ft.com/content/7d058f74-93d3-11e3-a0e1-00144feab7de |archive-url=https://ghostarchive.org/archive/20221210/https://www.ft.com/content/7d058f74-93d3-11e3-a0e1-00144feab7de |archive-date=2022-12-10 |url-access=subscription |access-date=6 May 2017}}</ref>

{| class="wikitable sortable"
|-
! Rank
! Firm
! Fiscal year<br />ending & {{Abbr|ref.|Reference/Citation}}
! Revenues<br />(US$)
! Revenue gap %<br />to next largest
! Revenue gap %<br />to top firm
! Employees
! Revenue<br />per employee
! Audit &<br />Assurance
! Tax &<br />Legal
! {{Abbr|Consulting<br />& Advisory|See Note}}
! Consulting<br />% of Total
|- <!-- use {{color|red|−5,890}} for any negative values -->
| 1st
| {{same}} [[Deloitte]]
| 2024-05-31<!-- FY ending --><ref name="Deloitte Current Year Revenue">{{Cite web |date=9 October 2024 |title=Deloitte 2024 Global Impact Report |url=https://www.deloitte.com/content/dam/assets-shared/docs/about/gir/global-report-full-version.pdf |access-date=22 December 2024 |website=Deloitte |archive-date=22 December 2024 |archive-url=https://web.archive.org/web/20241222220920/https://www.deloitte.com/content/dam/assets-shared/docs/about/gir/global-report-full-version.pdf |url-status=dead}}</ref>
| $67.2 bn<br />({{small|{{increase}} $2.3 bn, 3.5%}})<!-- Revenues -->
| Top firm<br />(Top firm {{Abbr|PY|in prior year}})<!-- FORMULA: (firm above – current firm) / firm above = diff % --><!-- Revenue gap -->
| Top firm<br />(Top firm {{Abbr|PY|in prior year}})<!-- FORMULA: (top firm – current firm) / top firm = diff % --><!-- Revenue gap to #1 -->
| 460,300<br />({{small|{{increase}} 3,474, 0.8%}})<!-- Employees -->
| $145,992<br />({{small|{{increase}} $3,925, 2.8%}})<!-- Revenue per employee -->
| $12.8 bn<br />({{small|{{increase}} $0.5 bn, 4.1%}})<!-- Audit -->
| $11.3 bn<br />({{small|{{increase}} $1.0 bn, 9.7%}})<!-- Tax -->
| $43.3 bn<br />({{small|{{increase}} $0.8 bn, 1.9%}})<!-- Consulting -->
| 64.4%<br />({{small|{{decrease}} {{color|red|−1.1%}}}})<!-- Consulting % -->
<!-- REMINDER: remember to also update the dates (and categories if necessary) in the footnote under the table, it's easy to forget! -->
<!-- use ${{color|red|−7,037}} for any negative values -->
|-
| 2nd
| {{same}} [[PwC]]
| 2024-06-30<!-- FY ending --><ref name="PwC Current Year Revenue">{{Cite web |date=29 October 2024 |title=PwC global revenues rise to US$55.4 billion |url=https://www.pwc.com/gx/en/news-room/press-releases/2024/pwc-global-revenues-rise-to-us-55-4-billion.html |access-date=22 December 2024 |website=PwC |archive-date=22 December 2024 |archive-url=https://web.archive.org/web/20241222221440/https://www.pwc.com/gx/en/news-room/press-releases/2024/pwc-global-revenues-rise-to-us-55-4-billion.html}}</ref>
| $55.4 bn<br />({{small|{{increase}} $2.3 bn, 4.3%}})<!-- Revenues -->
| {{color|red|−18%}} vs Deloitte<br />({{color|red|−18%}} vs Deloitte {{Abbr|PY|in prior year}})<!-- FORMULA: (firm above – current firm) / firm above = diff % --><!-- Revenue gap -->
| {{color|red|−18%}}<br />({{color|red|−18%}} {{Abbr|PY|in prior year}})<!-- FORMULA: (top firm – current firm) / top firm = diff % --><!-- Revenue gap to #1 -->
| 370,000<br />({{small|{{increase}} 6,000, 1.6%}})<!-- Employees -->
| $149,730<br />({{small|{{increase}} $3,851, 2.6%}})<!-- Revenue per employee -->
| $19.5 bn<br />({{small|{{increase}} $0.8 bn, 4.3%}})<!-- Audit -->
| $12.6 bn<br />({{small|{{increase}} $0.8 bn, 6.8%}})<!-- Tax -->
| $23.3 bn<br />({{small|{{increase}} $0.7 bn, 3.1%}})<!-- Consulting -->
| 42.1%<br />({{small|{{decrease}} {{color|red|−0.5%}}}})<!-- Consulting % -->
<!-- REMINDER: remember to also update the dates (and categories if necessary) in the footnote under the table, it's easy to forget! -->
<!-- use ${{color|red|−7,037}} for any negative values -->
|-
| 3rd
| {{same}} [[Ernst & Young|EY]]
| 2024-06-30<!-- FY ending --><ref name="EY Current Year Revenue">{{Cite web |date=17 October 2024 |title=EY reports global revenue of US$51.2b for fiscal year 2024 |url=https://www.ey.com/en_gl/newsroom/2024/10/ey-reports-global-revenue-of-51-point-2-billion-us-dollars-for-fiscal-year-2024 |access-date=22 December 2024 |website=EY |archive-date=20 December 2024 |archive-url=https://web.archive.org/web/20241220233343/https://www.ey.com/en_gl/newsroom/2024/10/ey-reports-global-revenue-of-51-point-2-billion-us-dollars-for-fiscal-year-2024}}</ref>
| $51.2 bn<br />({{small|{{increase}} $1.8 bn, 3.6%}})<!-- Revenues -->
| {{color|red|−8%}} vs PwC<br />({{color|red|−7%}} vs PwC {{Abbr|PY|in prior year}})<!-- FORMULA: (firm above – current firm) / firm above = diff % --><!-- Revenue gap -->
| {{color|red|−24%}}<br />({{color|red|−24%}} {{Abbr|PY|in prior year}})<!-- FORMULA: (top firm – current firm) / top firm = diff % --><!-- Revenue gap to #1 -->
| 392,995<br />({{small|{{decrease}} {{color|red|−2,447}}, {{color|red|−0.6%}}}})<!-- Employees -->
| $130,282<br />({{small|{{increase}} $5,358, 4.3%}})<!-- Revenue per employee -->
| $17.3 bn<br />({{small|{{increase}} $0.9 bn, 5.5%}})<!-- Audit -->
| $12.1 bn<br />({{small|{{increase}} $0.8 bn, 7.1%}})<!-- Tax -->
| $21.8 bn<br />({{small|{{increase}} $0.1 bn, 0.5%}})<!-- Consulting -->
| 42.6%<br />({{small|{{decrease}} {{color|red|−1.3%}}}})<!-- Consulting % -->
<!-- REMINDER: remember to also update the dates (and categories if necessary) in the footnote under the table, it's easy to forget! -->
<!-- use ${{color|red|−7,037}} for any negative values -->
|-
| 4th
| {{same}} [[KPMG]]
| 2024-09-30<!-- FY ending --><ref name="KPMG Current Year Revenue">{{Cite web |date=17 December 2024 |title=Robust growth for KPMG as global revenues rise 5.1% to US$ 38.4 billion |url=https://kpmg.com/xx/en/media/press-releases/2024/12/robust-growth-for-kpmg-as-global-revenues-rise-5-percent-to-us-dollar-38-point-4-billion.html |access-date=22 December 2024 |publisher=KPMG |archive-date=22 December 2024 |archive-url=https://web.archive.org/web/20241222222127/https://kpmg.com/xx/en/media/press-releases/2024/12/robust-growth-for-kpmg-as-global-revenues-rise-5-percent-to-us-dollar-38-point-4-billion.html}}</ref>
| $38.4 bn<br />({{small|{{increase}} $2.0 bn, 5.5%}})<!-- Revenues -->
| {{color|red|−25%}} vs EY<br />({{color|red|−26%}} vs EY {{Abbr|PY|in prior year}})<!-- FORMULA: (firm above – current firm) / firm above = diff % --><!-- Revenue gap -->
| {{color|red|−43%}}<br />({{color|red|−44%}} {{Abbr|PY|in prior year}})<!-- FORMULA: (top firm – current firm) / top firm = diff % --><!-- Revenue gap to #1 -->
| 275,288<br />({{small|{{increase}} 1,864, 0.7%}})<!-- Employees -->
| $139,490<br />({{small|{{increase}} $6,364, 4.8%}})<!-- Revenue per employee -->
| $13.4 bn<br />({{small|{{increase}} $0.8 bn, 6.3%}})<!-- Audit -->
| $8.7 bn<br />({{small|{{increase}} $0.8 bn, 10.1%}})<!-- Tax -->
| $16.3 bn<br />({{small|{{increase}} $0.6 bn, 3.8%}})<!-- Consulting -->
| 42.4%<br />({{small|{{decrease}} {{color|red|−0.7%}}}})<!-- Consulting % -->
<!-- REMINDER: remember to also update the dates (and categories if necessary) in the footnote under the table, it's easy to forget! -->
<!-- use ${{color|red|−7,037}} for any negative values -->
|-
!scope="row" colspan="3" | Total
!| $212.2 bn<br />({{small|{{increase}} $8.4 bn, 4.1%}})<!-- Revenues -->
!| —<!-- Revenue gap -->
!| —<!-- Revenue gap to #1 -->
!| 1,498,583<br />({{small|{{increase}} 8,891, 0.6%}})<!-- Employees -->
!| $141,600<br />({{small|{{increase}} $4,794, 3.5%}})<!-- Revenue per employee -->
!| $63.0 bn<br />({{small|{{increase}} $3.0 bn, 5.0%}})<!-- Audit -->
!| $44.7 bn<br />({{small|{{increase}} $3.4 bn, 8.2%}})<!-- Tax -->
!| $104.7 bn<br />({{small|{{increase}} $2.2 bn, 2.1%}})<!-- Consulting -->
!| 49.3%<br />({{small|{{decrease}} {{color|red|−1.0%}}}})<!-- Consulting % -->
|}
<!-- use ${{color|red|−7,037}} for any negative values -->
{{smalldiv|'''Note:''' Consulting & Advisory includes the following service lines reported by each firm.  Further, columns may not cross-add due to rounding in numbers reported by each firm.
* Deloitte: Consulting, Financial Advisory, Risk Advisory (F2024 financial statement categories)
* PwC: Advisory (F2024 financial statement categories)
* EY: Consulting, Strategy and Transactions (F2024 financial statement categories)
* KPMG: Advisory (F2024 financial statement categories)
}}

=== Revenue comparison charts ===
'''Big Four Accounting Firm Revenues (US$ bn)'''
{{GraphChart
|width=800|height=350|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=$|yScaleType=log <!-- may need to change scale to "log" when the scale gets larger -->
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=$30 bn, $40 bn, $50 bn, $60 bn
|hannotatonsline=30, 40, 50, 60
|vAnnotatonsLabel=Great Recession starts, COVID-19 pandemic starts
|vAnnotatonsLine=2008.17, 2020
|xAxisTitle=Year
|yaxistitle=Revenue (US$ bn, log scale)
|x=                  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
|y1Title=Deloitte|y1=27.0, 27.4, 26.1, 26.6, 28.8, 31.3, 32.4, 34.2, 35.2, 36.8, 38.8, 43.2, 46.2, 47.6, 50.2, 59.3, 64.9, 67.2
|y2Title=PwC|     y2=25.2, 28.2, 26.2, 26.6, 29.2, 31.5, 32.1, 34.0, 35.4, 35.9, 37.7, 41.3, 42.5, 43.0, 45.1, 50.3, 53.1, 55.4
|y3Title=EY|      y3=21.1, 24.5, 21.4, 21.3, 22.9, 24.4, 25.8, 27.4, 28.7, 29.6, 31.4, 34.8, 36.4, 37.2, 40.0, 45.4, 49.4, 51.2
|y4Title=KPMG|    y4=19.8, 22.7, 20.1, 20.6, 22.7, 23.0, 23.4, 24.8, 24.4, 25.9, 26.4, 29.0, 29.8, 29.2, 32.1, 34.6, 36.4, 38.4
}}

'''Revenue gap to largest firm (%)'''

{{GraphChart
|width=800|height=225|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=%|yScaleType=linear
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=−10%, −20%, -30%, -40%
|hannotatonsline=-0.10, -0.20, -0.30, -0.40
|vAnnotatonsLabel=Great Recession starts, COVID-19 pandemic starts
|vAnnotatonsLine=2008.17, 2020
|xAxisTitle=Year
|yaxistitle=Revenue gap to largest firm (%)
|x=                    2007,  2008,  2009,  2010,  2011,  2012,  2013,  2014,  2015,  2016,  2017,  2018,  2019,  2020,  2021,  2022,  2023,  2024
|y1Title=Deloitte|y1=  0.00, -0.03,  0.00,  0.00, -0.01, -0.01,  0.00,  0.00, -0.01,  0.00,  0.00,  0.00,  0.00,  0.00,  0.00,  0.00,  0.00,  0.00
|y2Title=PwC|     y2= -0.07,  0.00,  0.00,  0.00,  0.00,  0.00, -0.01, -0.01,  0.00, -0.02, -0.03, -0.04, -0.08, -0.10, -0.10, -0.15, -0.18, -0.18
|y3Title=EY|      y3= -0.22, -0.13, -0.18, -0.20, -0.22, -0.23, -0.20, -0.20, -0.19, -0.20, -0.19, -0.19, -0.21, -0.22, -0.20, -0.23, -0.24, -0.24
|y4Title=KPMG|    y4= -0.27, -0.20, -0.23, -0.23, -0.22, -0.27, -0.28, -0.27, -0.31, -0.30, -0.32, -0.33, -0.35, -0.39, -0.36, -0.42, -0.44, -0.43
<!-- Formula: (Firm Revenue – Largest Firm Revenue) / Largest Firm Revenue
Example, KPMG 2021: ($32.1 KPMG - $50.2 Deloitte) / $50.2 Deloitte = -36%
-->
}}

'''Revenue gap to largest firm (US$ bn)'''

{{GraphChart
|width=800|height=225|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=$|yScaleType=linear
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=−$5 bn, −$10 bn, −$15 bn, -$20 bn
|hannotatonsline=-5, -10, -15, -20
|vAnnotatonsLabel=Great Recession starts,COVID-19 pandemic starts
|vAnnotatonsLine=2008.17, 2020
|xAxisTitle=Year
|yaxistitle=Revenue gap to largest firm (US$ bn)
|x=                  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,  2015,  2016,  2017,  2018,  2019,  2020,  2021,  2022,  2023,  2024
|y1Title=Deloitte|y1=   0, -0.8, -0.1,    0, -0.4, -0.2,    0,    0,  -0.2,     0,     0,     0,     0,     0,     0,     0,     0,     0
|y2Title=PwC|     y2=-1.8,    0,    0,    0,    0,    0, -0.3, -0.2,     0,  -0.9,  -1.1,  -1.9,  -3.7,  -4.6,  -5.1,  -9.0, -11.8, -11.8
|y3Title=EY|      y3=-5.9, -3.7, -4.8, -5.3, -6.3, -7.1, -6.6, -6.8,  -6.7,  -7.2,  -7.4,  -8.4,  -9.8, -10.4, -10.2, -13.9, -15.5, -16.0
|y4Title=KPMG|    y4=-7.2, -5.5, -6.1, -6.0, -6.5, -8.5, -9.0, -9.4, -11.0, -10.9, -12.4, -14.2, -16.4, -18.4, -18.1, -24.7, -28.5, -28.8
<!-- Formula: (Firm Revenue – Largest Firm Revenue)
Example, KPMG 2021: ($32.1 KPMG - $50.2 Deloitte) = $-18.1
-->
}}

'''Total Employees'''

{{GraphChart
|width=800|height=225|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=%|yScaleType=linear
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=100k, 200k, 300k, 400k, 500k
|hannotatonsline=100000, 200000, 300000, 400000, 500000
|vAnnotatonsLabel=Great Recession starts, COVID-19 pandemic starts
|vAnnotatonsLine=2008.17, 2020
|xAxisTitle=Year
|yaxistitle=Total Employees
|x=                      2007,  2008,   2009,   2010,   2011,   2012,   2013,   2014,   2015,   2016,   2017,   2018,   2019,   2020,   2021,   2022,   2023,   2024
|y1Title=Deloitte|y1= 150000, 165000, 169000, 170000, 182000, 193000, 200000, 210000, 225400, 244400, 263900, 286200, 312028, 334800, 345374, 411951, 456826, 460300
|y2Title=PwC|     y2= 146700, 146700, 163000, 162000, 169000, 180000, 184000, 195000, 208100, 223468, 236235, 250930, 276005, 284000, 295000, 328000, 364000, 370000
|y3Title=EY|      y3= 130000, 135000, 144441, 140964, 152000, 167000, 175000, 190000, 212000, 231000, 247570, 260000, 284000, 298965, 312250, 365399, 395442, 392995
|y4Title=KPMG|    y4= 123300, 137000, 135000, 137835, 138000, 152000, 155000, 162000, 173965, 188982, 197263, 207050, 219281, 227000, 236000, 265000, 273424, 275288
<!-- Formula: N/A
-->
}}

'''Audit & Assurance Revenue (US$ bn)'''

{{GraphChart
|width=800|height=175|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=$|yScaleType=log <!-- may need to change scale to "log" when the scale gets larger -->
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=$10 bn, $12.5 bn, $15 bn, $17.5 bn
|hannotatonsline=10, 12.5, 15, 17.5
|vAnnotatonsLabel=COVID-19 pandemic starts
|vAnnotatonsLine=2020
|xAxisTitle=Year
|yaxistitle=Audit & Assurance Revenue (US$ bn, log scale)
|x=                  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
|y1Title=Deloitte|y1=10.1,  9.8,  9.4,  9.4, 10.2, 10.2,  9.9, 10.5, 11.4, 12.3, 12.8
|y2Title=PwC|     y2=15.1, 15.2, 15.3, 16.0, 17.1, 17.4, 17.6, 17.1, 18.0, 18.7, 19.5
|y3Title=EY|      y3=11.3, 11.3, 11.3, 11.6, 12.6, 12.6, 12.8, 13.6, 14.4, 16.4, 17.3
|y4Title=KPMG|    y4=10.5, 10.0, 10.1, 10.4, 11.2, 11.2, 11.1, 11.5, 11.9, 12.6, 13.4
}}

'''Tax Revenue (US$ bn)'''

{{GraphChart
|width=800|height=175|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=$|yScaleType=log <!-- may need to change scale to "log" when the scale gets larger -->
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=$6 bn, $8 bn, $10 bn, $12 bn
|hannotatonsline=6, 8, 10, 12
|vAnnotatonsLabel=COVID-19 pandemic starts
|vAnnotatonsLine=2020
|xAxisTitle=Year
|yaxistitle=Tax Revenue (US$ bn, log scale)
|x=                  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
|y1Title=Deloitte|y1= 6.5,  6.7,  6.9,  7.3,  7.9,  8.3,  8.7,  8.9,  9.9, 10.3, 11.3
|y2Title=PwC|     y2= 8.8,  8.9,  9.1,  9.5, 10.4, 10.7, 10.7, 11.0, 11.6, 11.8, 12.6
|y3Title=EY|      y3= 7.2,  7.5,  7.8,  8.2,  9.0,  9.5,  9.8, 10.5, 11.3, 11.3, 12.1
|y4Title=KPMG|    y4= 5.3,  5.3,  5.6,  5.8,  6.3,  6.6,  6.5,  7.0,  7.4,  7.9,  8.7
}}

'''Consulting & Advisory Revenue (US$ bn)'''

{{GraphChart
|width=800|height=175|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=$|yScaleType=log <!-- may need to change scale to "log" when the scale gets larger -->
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=$10 bn, $20 bn, $30 bn, $40 bn
|hannotatonsline=10, 20, 30, 40
|vAnnotatonsLabel=COVID-19 pandemic starts
|vAnnotatonsLine=2020
|xAxisTitle=Year
|yaxistitle=Consulting & Advisory Revenue (US$ bn, log scale)
|x=                  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
|y1Title=Deloitte|y1=17.6, 18.8, 20.5, 22.2, 25.1, 27.8, 29.2, 31.0, 38.1, 42.5, 43.3
|y2Title=PwC|     y2=10.0, 11.2, 11.5, 12.2, 13.8, 14.4, 14.7, 17.0, 20.7, 22.6, 23.3
|y3Title=EY|      y3= 8.8,  9.8, 10.5, 11.6, 13.2, 14.3, 14.6, 15.9, 19.7, 21.7, 21.8
|y4Title=KPMG|    y4= 9.1,  9.1,  9.7, 10.2, 11.5, 12.0, 11.7, 13.7, 15.4, 15.7, 16.3
}}

'''Consulting % of Total Revenue'''

{{GraphChart
|width=800|height=225|type=line|legend=Firm Name|xGrid=y|yGrid=y|yAxisFormat=%|yScaleType=linear
|colors=#86BC24,#D85604,#FFDB00,#00338D
<!-- These are the official corporate colours for each firm as follows:
Deloitte Green #86BC24: https://www.schemecolor.com/deloitte-logo-colors.php
PwC Dark Orange #D85604: https://www.schemecolor.com/pricewaterhousecoopers-pwc-logo.php
EY Yellow #FFDB00: https://www.schemecolor.com/ernst-young-logo-colors.php
KPMG Blue #00338D: https://en.calameo.com/read/005748021d8b1f63106dd (KPMG is not found on schemecolor)
-->
|hannotatonslabel=25%, 30%, 40%, 50%, 60%, 70%
|hannotatonsline=0.25, 0.30, 0.40, 0.50, 0.60, 0.70
|vAnnotatonsLabel=Great Recession starts, COVID-19 pandemic starts
|vAnnotatonsLine=2008.17, 2020
|xAxisTitle=Year
|yaxistitle=Consulting % of Total Revenue
|x=                    2014,  2015,  2016,  2017,  2018,  2019,  2020,  2021,  2022,  2023,  2024
|y1Title=Deloitte|y1= 0.515, 0.533, 0.557, 0.571, 0.581, 0.600, 0.611, 0.615, 0.641, 0.653, 0.642
|y2Title=PwC|     y2= 0.295, 0.317, 0.320, 0.324, 0.334, 0.339, 0.342, 0.377, 0.412, 0.426, 0.421
|y3Title=EY|      y3= 0.322, 0.343, 0.355, 0.369, 0.379, 0.393, 0.392, 0.398, 0.434, 0.439, 0.426
|y4Title=KPMG|    y4= 0.365, 0.373, 0.382, 0.386, 0.397, 0.403, 0.399, 0.425, 0.444, 0.434, 0.424
<!-- Formula: Firm Consulting Revenue / Firm Total Revenue
Example, KPMG 2021: $13.7  / $32.2 = 42.5%
-->
}}