Need to reduce hiring time and reach passive candidates? These 5 criteria will help you assess executive search firms and choose a trusted recruitment partner.
What is a headhunting firm, and when should employers use one?
Employers face growing challenges in finding qualified talent, particularly for senior roles and positions requiring scarce expertise. Working with a trusted executive search firm helps employers reach suitable candidates quickly, save time and improve hiring outcomes.
What headhunters do
Headhunters are recruitment professionals who act as external representatives of employers to identify and recruit talent. Unlike traditional recruitment, headhunting focuses primarily on passive candidates: professionals who are established in their current roles and are not actively seeking new opportunities.
>> Executive search and specialist recruitment services from CNK Consulting
Headhunters play several roles in the recruitment process:
- Representing the employer brand: Headhunters do more than introduce job opportunities. They communicate the employer’s vision, core values and long-term career opportunities, helping candidates understand the business. This strengthens the employer’s appeal and professional reputation among prospective candidates.
- Negotiating offers: Headhunters balance the interests of employers and candidates, helping them agree on sensitive matters such as salary, benefits and working conditions. For senior roles or positions with complex compensation packages, their negotiation skills help secure satisfaction and long-term commitment from both parties.
3 situations that call for a professional headhunter
Engaging a professional headhunter helps employers shorten hiring timelines, reach qualified talent and maintain confidentiality throughout the process. Here are 3 situations in which employers should consider this support:
Hiring senior executives or specialists with scarce expertise
This is where a headhunter’s search expertise is most valuable. The candidate pool is limited for roles such as Chief Technology Officer (CTO), Chief Financial Officer (CFO), and specialists in semiconductor chips or blockchain. Headhunters spend years building relationships and trust with these professionals, giving employers direct access without having to develop those connections themselves.
Maintaining complete confidentiality during recruitment
When replacing an existing employee or opening an unannounced branch, protecting the employer’s identity and hiring plans is a priority. In a confidential search, the headhunter commits to the highest level of confidentiality, disclosing the company and role only after screening candidates for a strong commitment to the opportunity.
Accelerating hiring and reaching more passive candidates
Traditional job advertising reaches only 20% of the labour market. The remaining 80% of skilled professionals are not currently looking to move. Headhunters use specialist techniques to reach this 80% of candidates, reducing search timelines from 6 months to 1-3 months.
Read more: Where do headhunters find candidates?
5 key criteria for assessing a trusted executive search firm
Choosing a trusted executive search firm is critical to the success of a recruitment strategy. The right partner delivers qualified candidates, saves time and costs, and protects the employer brand. Use these 5 criteria to assess potential firms:
Experience and sector expertise
Not every headhunter has extensive experience and a broad network across all sectors. Specialisation is a key factor that distinguishes an accomplished headhunter from a general recruitment intermediary.
Consultants with in-depth industry knowledge
Review the consultants’ profiles and professional backgrounds. A reliable firm typically employs consultants with practical experience in the sectors they recruit for.
For example, a technology headhunter should understand the differences between Java, Python and Go, rather than simply recognise keywords on a CV. They must also understand salary benchmarks at each level to advise on appropriate compensation and help employers remain competitive in the talent market.
The scale and quality of the candidate database
A trusted executive search firm can demonstrate the size and composition of its candidate database. More importantly, its quality depends on how regularly records are updated, the firm’s exclusive access to candidates and the strength of its relationships with senior candidates. These factors help employers quickly reach suitable professionals, even when they are not yet ready to change jobs.
>> Read more: How long does a headhunter take to present candidates?
A transparent, effective recruitment process
A clear, systematic recruitment process indicates a firm’s professionalism. It demonstrates both its ability to deliver and its commitment to candidate quality and the client experience.
Responsiveness and agreed search timelines
A professional executive search firm establishes clear timelines and milestones. Ask for a specific commitment on when it will present a shortlist. For example: “Present 3 – 5 suitable candidate profiles within 15 – 20 working days.”
Prompt responses and delivery on schedule demonstrate strong organisation and effective sourcing, helping employers plan their hiring with greater confidence.
In-depth assessment methods
Experienced headhunters go beyond reviewing CVs and relying on personal judgement. They use modern assessment methods, such as behavioural interviews, to understand how candidates have handled real situations in previous roles. This helps them predict how candidates will adapt to a new position.
For senior management roles, headhunters may ask candidates to work through strategic or decision-making scenarios. They also use assessment tools such as DISC, MBTI or 16PF to measure leadership ability, communication style and cultural fit.
This approach helps employers identify candidates whose technical expertise, thinking and personal values fit the organisation, as well as those with the required skills.
Reputation and an extensive partner network
A firm’s reputation directly reflects its capability and reliability. Look beyond market recognition to specific evidence of recruitment performance, such as placement success rates and client satisfaction after each assignment.
Client feedback and evidence of successful placements
Positive feedback from previous clients is the most reliable reference. Ask the firm for examples of difficult roles it has filled successfully, particularly senior positions or those requiring scarce expertise.
Also ask about major clients or prominent brands the firm has worked with, past and present. A professional executive search firm will readily share a representative client portfolio as evidence of its experience and delivery capability.
International networks and partnerships
A firm’s global connections offer another measure of its standing. Headhunters affiliated with international recruitment associations or networks, such as AESC, NPA Worldwide and IRC Global, generally have to follow stricter professional ethics and processes.
These connections also extend access to candidates in overseas markets, which is particularly useful for multinational employers and businesses expanding regionally.
A strong reputation takes years to build through consistent service quality, high success rates and client satisfaction.
Replacement guarantees and post-placement support
A replacement guarantee is among the clearest indicators of a firm’s commitment to hiring outcomes and accountability for them. A transparent policy demonstrates confidence in candidate quality and gives employers reassurance about the long-term working relationship.
Replacement guarantee periods and conditions
Most headhunting firms in the market offer a standard guarantee of around 2 months. Professional firms that are confident in their selection process may extend this to 3 – 6 months, depending on the seniority of the role.
This gives employers enough time to assess the candidate’s integration, performance and potential to stay with the business. Treat the guarantee as an important point in contract negotiations to secure the strongest protection for the employer.
Onboarding advice and support
Trusted headhunters continue supporting employers and candidates after a placement, helping them establish an effective working relationship and reducing the risk of an early departure.
If cultural tensions or differences in job expectations arise, the headhunter acts as an intermediary, advising both parties and helping them adjust. This approach improves retention and strengthens long-term trust between the firm and its clients.
Clear, reasonable fees and contract terms
Transparent fees and contract terms help employers avoid unnecessary misunderstandings and disputes. A trusted firm provides clear, detailed information on fees, payment arrangements and relevant legal commitments.
Service fee structures
- Contingency recruitment: The employer pays upon a successful placement. This is the most common model and typically applies to mid-level roles.
- Retained search: Fees are paid in stages. For example, 1/3 is paid when the contract is signed, 1/3 when candidates are presented and 1/3 when the successful candidate starts work. This model typically applies to executive search assignments, where the process is more complex and takes longer.
- Indicative fees: Fees typically range from 15% to 30% of the candidate’s annual salary, depending on seniority and sector.
Confidentiality and non-solicitation clauses
Contracts from reputable firms always include confidentiality and non-solicitation provisions. These ensure that the headhunter will not approach the employer’s existing employees for other roles for 12 – 24 months after the contract ends. Such clauses protect the employer’s workforce and reputation while supporting a transparent, lasting partnership.
Financial transparency and clear terms build trust between employers and headhunters, helping the recruitment process run smoothly, effectively and securely.
>> Read more: Professional IT headhunting firms in Vietnam
How to select an executive search partner
Selecting the right executive search partner helps employers improve hiring outcomes, save time and reduce the risk of a poor hire. A structured selection process makes it easier to assess a firm’s capabilities, reputation and suitability for specific hiring needs.
Step 1: Define hiring needs and objectives
Start by defining the roles to be filled, including seniority, the number of hires and the required timeline. Set priorities for technical expertise, experience, interpersonal skills and cultural fit. This will clarify whether you need a sector specialist or a generalist, and whether the firm should focus on mid-level or senior appointments, shortening the search for a suitable partner.
Step 2: Identify and assess potential search firms
Once hiring needs are clear, identify potential firms through recommendations from business partners, online reviews, professional associations or international networks. Assess each firm against the following criteria:
- Sector experience and expertise
- Candidate networks and access to passive talent
- Reputation, placement success rates and client feedback
- Working processes and candidate assessment methods
- Transparent fees and contract terms.
Step 3: Meet the firms and review relevant assignments
Arrange online or in-person meetings to discuss the hiring requirements in detail. Use these conversations to clarify:
- Candidate sourcing and assessment methods
- The expected timeline for presenting a shortlist
- Confidentiality provisions and replacement guarantees
- Service fees and payment arrangements
Also request case studies or evidence of successful placements in similar roles to assess the firm’s capabilities.
Step 4: Evaluate proposals and sign the contract
Compare potential firms using the information gathered on their experience, reputation, working methods, fees and confidentiality commitments. Once a partner is selected, ensure the contract clearly records:
- The scope of services
- The service-level agreement (SLA), including the timeline for presenting candidate profiles
- Service fees and payment terms
- The replacement guarantee and onboarding support
- Confidentiality and non-solicitation clauses
Step 5: Monitor and evaluate the partnership
The partnership continues after the candidate starts work. Monitor progress, hiring outcomes and candidate feedback, and stay in contact with the headhunter so that adjustments can be made promptly. Regular reviews help employers assess the firm’s effectiveness and apply what they learn to future hiring.
Read more: What is executive search, and how does it differ from conventional headhunting?
Top 10 most trusted headhunting firms in Vietnam today
Working with a trusted headhunting firm helps employers save time, maintain hiring quality and reach talent beyond the active candidate market. The following 10 firms are highly regarded in Vietnam for their reputation, expertise and results:
- CNK Consulting Vietnam: Known for executive search and strategic advice on senior talent, CNK takes a flexible approach tailored to each employer. Its strengths include support throughout the hiring process, from defining the target candidate profile and advising on employer branding to helping new hires integrate.
- Navigos Search: A pioneer in headhunting with a large candidate database and an experienced consulting team. Navigos is particularly strong in mid-level and senior appointments.
- Talentnet Corporation: A strategic partner to many international corporations, Talentnet is known for comprehensive HR consulting and extensive experience in executive recruitment.
- HRchannels Group: With more than 16 years of experience, the firm specialises in executive recruitment and strategic talent appointments. HRChannels uses big data technology to shorten search timelines.
- Persol Kelly Vietnam: Part of an Asia-Pacific recruitment network, the firm specialises in senior recruitment across engineering, manufacturing and finance.
- Adecco Vietnam: Part of the global Adecco Group, Adecco offers a professional selection process and services spanning recruitment, outsourcing and workforce training.
- Glints Vietnam: Strong in technology and startup recruitment, Glints is an ideal choice for businesses seeking to fill IT or digital marketing roles quickly.
- HR2B: Specialises in recruitment solutions for mid-level and senior roles, ensuring confidentiality and rapid response times.
- ManpowerGroup Vietnam: A global provider with more than 70 years of experience, known for flexible workforce services particularly suited to FDI enterprises and multinational corporations.
- Recruitery: A technology platform connecting employers with a network of freelance headhunters. Its use of AI helps expand the candidate pool and optimise recruitment costs.
Frequently asked questions about working with headhunters
How do headhunters charge for their services?
Service fees are generally calculated as a percentage of the candidate’s gross annual salary, ranging from 15% to 30% depending on seniority and the difficulty of filling the role. There are 2 common models:
- Contingency recruitment: The employer pays upon a successful placement.
- Retained search: Fees are paid in stages, typically for senior appointments.
Do headhunters offer a replacement guarantee?
A replacement guarantee is an important indicator of a headhunter’s commitment to service quality. The guarantee typically lasts from 2 to 6 months, depending on the seniority and nature of the role. If the candidate leaves or fails to meet requirements during this period, the headhunter will provide a replacement at no additional cost.
The policy demonstrates confidence in the firm’s selection process and its commitment to supporting workforce stability and effective hiring.
Do headhunters keep recruitment information confidential?
All information about the role, workforce strategy and internal development plans is kept strictly confidential under the confidentiality agreement. The headhunter discloses the employer’s name only after the candidate passes initial screening and agrees to continue with the process. This is particularly important for confidential replacement searches and management appointments.
>> If you need professional executive search and specialist recruitment support, explore our service packages.
Choosing the right search partner
Choosing a trusted executive search firm saves time, costs and resources while ensuring that new hires fit the employer’s culture and growth objectives. A professional partner supports the entire recruitment process, from advice and screening to replacement guarantees, to deliver dependable, lasting results.
CNK Consulting Vietnam
Hotline: +84 369 882 579
Email: info@cnk-consulting.com.vn
Address: 12BT6 Thanh Bình Garden, No. 3 Nguyễn Cảnh Dị, Định Công Ward, Hanoi, Vietnam
