How to Choose a Headhunter

The selection of an executive search firm is itself a consequential decision. The wrong firm — poor sector knowledge, over-reliance on their existing network, inexperienced consultants, or misaligned incentives — can result in a slow, shallow search that misses the best candidates and wastes months of management time. The right firm becomes a genuine strategic partner, bringing market intelligence, candidate insight, and rigorous assessment capability that extends well beyond simple recruitment.

Most organisations do not hire at board or C-suite level frequently enough to have well-developed views on which search firms are best for which appointments. This guide sets out the evaluation criteria that consistently distinguish excellent search firms from merely adequate ones.

1. Genuine sector expertise. The consultant leading your search should have demonstrable, current knowledge of your sector — not a generalist who has read the briefing document. Ask for specific examples of searches completed in your sector in the last two years, including role title, organisation type, and outcome.

2. Relevant assignment experience. Sector expertise must be complemented by experience at the relevant seniority level. A firm with strong mid-market experience may not be the right choice for a FTSE 250 CEO search. Ask for case studies of comparable assignments — similar role, similar organisation type, similar seniority.

3. Off-limits and conflict management. Every client the firm has placed a candidate into creates a pool of individuals they cannot approach for a defined period. Understand the firm's off-limits policy: how long is the restriction, does it apply to the individual or the team, and — critically — how many of the potential candidates for your role sit within their off-limits pool.

4. Consultant seniority and continuity. Establish who will actually lead the search. It is common for a senior partner to win the assignment and then hand it to a junior associate to execute. Ask specifically who will lead the research, who will conduct candidate interviews, and who will be your primary point of contact throughout the search.

5. Candidate assessment capability. Understand the firm's assessment methodology beyond CV screening. Do they use psychometric tools? If so, which ones and how are results interpreted? Do they conduct structured competency interviews? What does their written candidate assessment include?

6. Reference quality. Ask for referees from completed searches — ideally the decision-maker (CEO, Chair, or CHRO) who commissioned the search, not just a general contact. A firm confident in its work will provide strong referees readily.

7. Cultural fit with your organisation. The search firm will be representing your organisation to candidates in the market. Their communication style, discretion, and professionalism will shape how your opportunity is perceived by high-quality candidates who have choices. Choose a firm whose people you would be comfortable representing you in the market.

The credential meeting or pitch is your primary opportunity to assess the firm before committing. Use it well. Beyond the standard questions about process and timeline, probe on the following areas.

"Who specifically will lead this search, and what is their experience with comparable assignments?" Force a direct answer — not a description of the team's collective experience, but the specific background of the individual who will own the project.

"How many of the likely candidates for this role are within your off-limits pool?" A candid answer to this question tells you a great deal about the firm's honesty and the scale of any potential conflict.

"Walk me through the most comparable search you have completed in the last eighteen months. What made it difficult, and how did you handle that?" Real search experience involves navigating complications — candidates who withdraw, clients who change the brief, markets that are unexpectedly thin. A firm that can only describe smooth processes has either been lucky or is not being candid.

"What will you tell us that we do not already know about the candidate market for this role?" The answer to this question is the clearest signal of genuine sector expertise versus generic search capability. A strong firm will have current, specific intelligence about the relevant talent pool.

The senior partner attends the pitch but hands to junior staff immediately. This is the single most common complaint from clients who have had poor search experiences. Establish upfront — and in writing — who will lead each stage of the search.

Inability to name specific candidates or organisations in the talent map. A firm claiming genuine sector expertise should be able to sketch the relevant talent market in the pitch meeting, naming at least the key organisations and commenting on the types of individuals they expect to find. Vague generalities suggest limited current knowledge.

No off-limits policy or dismissiveness about conflicts. A firm that cannot clearly articulate its off-limits restrictions, or that minimises their significance, is either disorganised or not being candid. Either is a concern.

Pressure to sign quickly. Legitimate urgency about starting a search is understandable, but pressure to sign the engagement letter in the credential meeting — before you have had time to meet other firms, check references, or read the terms carefully — is a warning sign.

Fee below 25% for a retained search. This is rare at reputable firms, but a retained fee below 25% often signals either over-commitment (the firm has taken on more than it can service well) or a structurally contingent engagement dressed as retained. Either creates misaligned incentives.

The Association of Executive Search and Leadership Professionals (AESC) is the global professional body for the executive search industry. AESC member firms commit to a defined standard of professional practice, including ethical candidate treatment, client confidentiality, accuracy of representation, and standards of assessment. Membership is not automatic — firms apply and must meet the organisation's criteria.

AESC accreditation is not a guarantee of quality, but it is a meaningful signal of professional standards and commitment to ethical practice. For clients who are unfamiliar with the search market and assessing firms for the first time, restricting consideration to AESC member firms provides a useful baseline quality filter. The AESC website lists all member firms by geography and sector specialism.

For most senior appointments, meeting two to three search firms in competitive pitch is appropriate. One firm gives you no benchmark for comparison. Four or more becomes unwieldy and sends a signal to the market that you are unlikely to be a committed, engaged client — which can subtly affect the quality of the firms willing to pitch for your work.

For CEO and board-level searches, it is common to meet three firms and request written proposals from all three before making a decision. This structured approach enables rigorous comparison across the evaluation criteria above and signals to the winning firm that the mandate has been awarded thoughtfully — which tends to correlate with a productive working relationship throughout the search.