What are the best executive search firms?
The Best Executive Search Firms: What The Shortlist Report Finds
5 firms lead, appearing in 100.0–100.0% of 55 AI responses. The sample cannot separate them, so we do not pretend it can.
No clear leader
No single firm dominates this question. Five come up regularly and they specialise in different things, so the firm worth calling is the one that fits your situation rather than whoever sits highest.
Egon Zehnder55 of 55
Executive search for CEO succession, board work, and leadership assessment across global enterprises.
Heidrick & Struggles55 of 55
Conducts CEO, C-suite, and board searches for large companies and PE-backed organizations.
Korn Ferry55 of 55
Conducts CEO, C-suite, board, and leadership assessment searches for large global organizations.
Russell Reynolds Associates55 of 55
Conducts CEO, C-suite, and board searches for large public companies and financial services.
Spencer Stuart55 of 55
Conducts CEO, board, and senior C-suite searches for large enterprises and succession planning.
Based on 55 ChatGPT responses to this question, collected August 11, 2026–August 19, 2026. Firms are counted once per response. How we measure.
Which firm for which industry
8 of the 15 firms named an industry in the way ChatGPT described them, and they are grouped below in those words. A firm that named several industries appears under each of them, so the groups add up to more than 8. This is a reading of the descriptions rather than a second measurement — the counts, and every firm, are in the table.
Healthcare & life sciences
- WittKieffer
Specializes in executive search for healthcare, higher education, and mission-driven organizations.
- DHR Global
Conducts board and C-suite searches with broad financial-services coverage across banking, capital markets, PE/VC, and insurance.
- Odgers
Conducts executive searches for nonprofits, associations, social-impact organizations, and healthcare/life-sciences providers, pharma, biotech, and healthtech.
- Diversified Search Group
Conducts nonprofit, education, healthcare and mission-driven organization leadership searches.
- JM Search
Conducts CEO, CFO, COO searches for private-equity-backed and middle-market companies.
- Caldwell
Executive search with HR/CHRO expertise and diversity metrics tracking across sectors.
Nonprofits
- WittKieffer
Specializes in executive search for healthcare, higher education, and mission-driven organizations.
- Odgers
Conducts executive searches for nonprofits, associations, social-impact organizations, and healthcare/life-sciences providers, pharma, biotech, and healthtech.
- Diversified Search Group
Conducts nonprofit, education, healthcare and mission-driven organization leadership searches.
- JM Search
Conducts CEO, CFO, COO searches for private-equity-backed and middle-market companies.
Education
- WittKieffer
Specializes in executive search for healthcare, higher education, and mission-driven organizations.
- Diversified Search Group
Conducts nonprofit, education, healthcare and mission-driven organization leadership searches.
- JM Search
Conducts CEO, CFO, COO searches for private-equity-backed and middle-market companies.
Financial services
- Russell Reynolds Associates
Conducts CEO, C-suite, and board searches for large public companies and financial services.
- DHR Global
Conducts board and C-suite searches with broad financial-services coverage across banking, capital markets, PE/VC, and insurance.
SaaS & technology
- True
Conducts executive search for technology, growth, and PE/VC-backed companies.
The ranking
| Firm | Responses | Share | |
|---|---|---|---|
| Tier 1 5 firms, 100.0–100.0% | |||
| Egon Zehnderegonzehnder.comExecutive search for CEO succession, board work, and leadership assessment across global enterprises. | 55 of 55 | 100.0% | |
| Heidrick & StrugglesConducts CEO, C-suite, and board searches for large companies and PE-backed organizations. | 55 of 55 | 100.0% | |
| Korn Ferrykornferry.comConducts CEO, C-suite, board, and leadership assessment searches for large global organizations. | 55 of 55 | 100.0% | |
| Russell Reynolds Associatesrussellreynolds.coConducts CEO, C-suite, and board searches for large public companies and financial services. | 55 of 55 | 100.0% | |
| Spencer Stuartspencerstuart.comConducts CEO, board, and senior C-suite searches for large enterprises and succession planning. | 55 of 55 | 100.0% | |
| Tier 2 3 firms, 72.7–85.5% | |||
| TrueConducts executive search for technology, growth, and PE/VC-backed companies. | 47 of 55 | 85.5% | |
| ZRG PartnersConducts C-suite and functional executive search for mid/large and PE-backed companies. | 43 of 55 | 78.2% | |
| WittKiefferwittkieffer.comSpecializes in executive search for healthcare, higher education, and mission-driven organizations. | 40 of 55 | 72.7% | |
| Tier 3 2 firms, 54.5–54.5% | |||
| DHR GlobalConducts board and C-suite searches with broad financial-services coverage across banking, capital markets, PE/VC, and insurance. | 30 of 55 | 54.5% | |
| Odgersodgers.comConducts executive searches for nonprofits, associations, social-impact organizations, and healthcare/life-sciences providers, pharma, biotech, and healthtech. | 30 of 55 | 54.5% | |
| Tier 4 3 firms, 32.7–36.4% | |||
| Boydenboyden.comConducts confidential senior executive searches, especially mid-market and international. | 20 of 55 | 36.4% | |
| Diversified Search Groupdiversifiedsearchgroup.comConducts nonprofit, education, healthcare and mission-driven organization leadership searches. | 20 of 55 | 36.4% | |
| JM Searchjmsearch.comConducts CEO, CFO, COO searches for private-equity-backed and middle-market companies. | 18 of 55 | 32.7% | |
| Tier 5 2 firms, 12.7–14.5% | |||
| Stanton Chasestantonchase.comConducts C-suite and executive search for mid-market and international organizations. | 8 of 55 | 14.5% | |
| Caldwellcaldwell.comExecutive search with HR/CHRO expertise and diversity metrics tracking across sectors. | 7 of 55 | 12.7% | |
Key findings
- No firm answers “What are the best executive search firms?” reliably in ChatGPT. The most-named, Egon Zehnder, appeared in 55 of 55 responses (100.0%) collected August 11, 2026–August 19, 2026, and 4 other firms scored close enough that the sample cannot put any of them in order.
- Egon Zehnder, Heidrick & Struggles and Korn Ferry were named most often, in 55–55 of 55 responses. All 5 firms in the leading group are listed with their counts in the table below.
- 15 firms cleared the reporting threshold on “What are the best executive search firms?” in ChatGPT as of August 19, 2026; the full table with response counts is below.
- Heidrick & Struggles appears in 7 of the 7 executive search firms reports published by The Shortlist Report, the widest coverage of any firm named on this page.
- No firm paid to appear in this ranking; placement cannot be bought, and the counts come from ChatGPT responses rather than from submissions.
Why the tiers fall where they do
Tier 1 holds Egon Zehnder, Heidrick & Struggles, Korn Ferry, Russell Reynolds Associates and Spencer Stuart, named in 55 to 55 of the 55 ChatGPT responses. They are grouped rather than ranked because the gaps between them are inside the margin of error at this sample size — one extra mention would reorder them, so an order would be reporting noise as a finding.
Tier 2 holds True, ZRG Partners and WittKieffer, named in 40 to 47 of 55 responses (72.7–85.5%). The sample does separate these firms from the tier above: the difference from the leading group is larger than the margin of error, which is what puts them in a tier of their own.
Tier 3 holds DHR Global and Odgers, named in 30 to 30 of 55 responses (54.5–54.5%). The sample does separate these firms from the tier above: the difference from the leading group is larger than the margin of error, which is what puts them in a tier of their own.
Tier 4 holds Boyden, Diversified Search Group and JM Search, named in 18 to 20 of 55 responses (32.7–36.4%). The sample does separate these firms from the tier above: the difference from the leading group is larger than the margin of error, which is what puts them in a tier of their own.
Tier 5 holds Stanton Chase and Caldwell, named in 7 to 8 of 55 responses (12.7–14.5%). The sample does separate these firms from the tier above: the difference from the leading group is larger than the margin of error, which is what puts them in a tier of their own.
The test is McNemar’s at 95%, applied against the same 55 responses for every firm. The full reasoning, and what happened when we ranked one-to-N instead.
What the sample shows
5 firms lead this question: Egon Zehnder, Heidrick & Struggles, Korn Ferry, Russell Reynolds Associates and Spencer Stuart. They appear in 100.0–100.0% of the 55 responses. The gaps between them are inside the margin of error at this sample size, so they are listed together rather than ranked against each other.
27 firms were named at least once across the sample. 15 of them cleared the threshold of 2 responses and appear above; the rest were named once and are inside the noise.
How to read this
Firms are grouped into tiers, not ranked one to fifteen. A tier holds every firm whose 95% confidence interval overlaps the leader's, which is a long way of saying the sample cannot tell them apart. Order within a tier is arbitrary — read the counts, not the position.
Share is the percentage of responses that named the firm — not a quality score. A firm scoring low here may be excellent and simply under-written about online, which is a finding about its visibility rather than its work.
The same question was asked repeatedly because AI assistants do not answer identically twice. A single response would tell you almost nothing.
What this measurement does not tell you
- It is not a quality ranking. Share reflects how much has been written about a firm online, which is what an AI assistant reads. A capable firm nobody writes about scores low here.
- It is a reading from a date range, not a permanent standing. This sample was collected August 11, 2026–August 19, 2026; models change and so do their answers.
- It covers ChatGPT only. Other assistants answer differently, and we do not extrapolate across engines we have not measured.
- Order within a tier is arbitrary. Read the counts, not the position. Why we use tiers.
Cite this report
The Shortlist Report. (2026). The Best Executive Search Firms: What The Shortlist Report Finds. The Shortlist Report. https://www.shortlistreport.com/article/best-executive-search-firms
Underlying counts: CSV · JSON. Every answer they were counted from: plain text · JSON. All reusable under CC BY 4.0 with attribution.