Brandwave

EY-Parthenon vs L.E.K. Consulting:Which is more popular?

In September 2026, EY-Parthenon had more branded searches than L.E.K. Consulting among consulting firms worldwide. EY-Parthenon had about 60,500 branded searches, while L.E.K. Consulting had 18,100. EY-Parthenon made up 1% of all consulting firm searches we track, and L.E.K. Consulting accounted for 0.31%. When we asked ChatGPT and Google AI Overviews about consulting firms, EY-Parthenon and L.E.K. Consulting each appeared in two of the four answers. EY-Parthenon was mentioned before L.E.K. Consulting in every answer that named either.

Among consulting firms worldwide in September 2026

Who do people search for more?

EY-Parthenon, about 3 searches for every 1 for L.E.K. Consulting

EY-Parthenon 60.5K searchesL.E.K. Consulting 18.1K searches

Who does AI mention more?

Both were mentioned in 2 of 4 answers.

EY-Parthenon in 2 of 4L.E.K. Consulting in 2 of 4

Who does AI recommend more?

EY-Parthenon, named ahead of L.E.K. Consulting in 2 of 2 answers

EY-Parthenon first in 2L.E.K. Consulting never first

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Top consulting firms in ChatGPT and Google AI Overviews

In three ChatGPT questions and one Google AI Overview, EY-Parthenon and L.E.K. Consulting were each mentioned in two out of four: in two of the three ChatGPT answers, but not in the Google AI Overview. EY-Parthenon was listed before L.E.K. Consulting in every answer that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. McKinsey & Company1st
  2. BCG2nd
  3. Bain & Company3rd
  4. PwC4th
  5. Oliver Wyman5th
  6. Deloitte6th
  7. EY-Parthenon7th
  8. Kearney8th
  9. L.E.K. Consulting9th
  10. Accenture10th

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • BCG4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • McKinsey & Company4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Bain & Company4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Deloitte3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • PwC3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Accenture2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
  • Oliver Wyman2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • EY-Parthenon2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • L.E.K. Consulting2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
  • Kearney2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers

See every answer about consulting firms

4 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Is EY-Parthenon or L.E.K. Consulting more popular in search?

This chart shows how often people search Google for EY-Parthenon and L.E.K. Consulting by name. Each line represents a brand's share of searches for all ten consulting firms we track, month by month, from English-language searches worldwide.

EY-Parthenon and L.E.K. Consulting among consulting firms worldwide, by month

Share of searches by month for EY-Parthenon, L.E.K. Consulting. The figures are in the table below the chart.

View monthly share of searches table
MonthDeloitteAccenturePwCBCGMcKinsey & CompanyBain & CompanyOliver WymanEY-ParthenonL.E.K. ConsultingKearney
Oct 202530.4%24.9%16.6%10.8%9.1%5%1.5%1%0.37%0.26%
Nov 202531.7%26%17.3%9.2%7.8%5.2%1.3%0.86%0.31%0.22%
Dec 202524.2%29.8%19.8%8.7%8.9%6.1%1.2%0.8%0.24%0.21%
Jan 202627.4%27.4%18.3%9.7%8.2%5.9%1.7%0.9%0.27%0.25%
Feb 202627.8%27.8%18.5%9.9%8.3%5%1.4%0.92%0.27%0.25%
Mar 202626.9%26.9%17.9%9.5%9.8%5.8%1.6%1.1%0.26%0.24%
Apr 202627.3%27.3%18.2%9.7%10%4.9%1.3%0.9%0.27%0.25%
May 202628.7%28.7%15.8%10.2%8.6%5.1%1.4%0.95%0.28%0.21%
Jun 202629.1%29.1%16%9%8.7%5.1%1.4%0.96%0.29%0.23%
Jul 202629.1%29.1%16%9%8.7%5.1%1.4%0.96%0.29%0.23%
Aug 202628.5%28.5%15.6%8.8%8.5%7.2%1.4%0.94%0.34%0.24%
Sep 202631.8%26%17.4%9.2%7.8%4.6%1.6%1%0.31%0.22%

How has the EY-Parthenon and L.E.K. Consulting comparison changed over the last 12 months?

3 findings

How did search popularity change for consulting firms worldwide in September 2026?

1 change

  1. Estimated monthly branded searches for L.E.K. Consulting worldwide fell 18.5% over 12 measured months, from 22.2K to 18.1K in September 2026.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using EY-Parthenon’s and L.E.K. Consulting’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

EY-Parthenon

1 branded search term

  • ey parthenon

L.E.K. Consulting

2 branded search terms

  • l.e.k. consulting
  • lek consulting

How the Brand Demand Index is measured

Other head-to-heads among consulting firms

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