Executive assistant agencies serve as intermediaries between consulting firms and EA talent, providing professional search and placement services that produce better hiring outcomes than self-directed recruitment for most consulting firms. Finding the right agency, one that genuinely understands professional services EA requirements, is the key to making this channel work.
Two Types of EA Agency
Before searching, understand the two distinct types of agency in the EA services market:
Staffing and Placement Agencies
These agencies find and place EA candidates as direct employees of the consulting firm. Their value is in sourcing (accessing candidates not visible on job boards), screening (filtering for the EA-specific capabilities that matter), and placement (managing the offer and start process). They charge a placement fee and step back once the candidate is hired.
This model produces a direct employee relationship with all associated benefits and obligations.
Managed Service Agencies (Virtual EA Platforms)
These agencies provide ongoing EA services under a subscription model. The EA is employed by the agency; the consulting firm accesses their services through a monthly fee. The agency handles employment compliance, quality oversight, backup coverage, and replacement.
These are sometimes called “agencies” in the market but are more accurately described as managed EA platforms. They provide a service rather than a placement.
This guide covers both types, since many consulting executives use both terms interchangeably when searching.
What Makes an EA Agency Right for Consulting Firms
Not every EA agency has the experience, talent pool, or understanding to serve a consulting firm well. The criteria that matter:
Professional Services Track Record
An agency that has placed EAs in consulting firms, law firms, investment banks, or similar professional services environments understands the specific requirements of these roles: the communication standard, the confidentiality expectations, the complexity of client relationship management, and the sophistication required of the EA.
Ask directly: “How many of your EA placements are in consulting or professional services environments? Can you describe the typical profile of EA you place in these firms?”
Vetting Depth for Professional Communication
EA placement quality depends heavily on how thoroughly the agency vets communication capability. General administrative skills assessments are not sufficient for consulting firm placements; the professional writing and verbal communication standard must be specifically assessed.
Ask: “How do you assess professional communication quality in your candidates? What does that evaluation involve?”
Access to Senior-Level Talent
Consulting CEOs typically need senior EAs, not entry-level administrative assistants. An agency with a talent pool skewed toward entry-level or mid-level candidates will struggle to place at the consulting CEO level.
Ask about the experience distribution of their typical EA placements: “What is the typical range of years of experience among the EAs you place? What percentage have supported C-suite executives directly?”
Consulting Industry Context Knowledge
The agency’s recruiters should understand the consulting firm environment well enough to assess whether a candidate has the right context for the role. A recruiter who cannot describe the difference between an EA role at a boutique strategy consulting firm and a general administrative role is not positioned to identify the right match.
Finding Consulting-Appropriate EA Agencies
Professional Services Staffing Specialists
Some staffing agencies specifically focus on professional services environments:
- Lucas Group: Professional search with executive support focus
- Kforce: Strong professional services administrative placement
- Resources Connection: Consulting and professional services focus
- Major, Lindsey & Africa: Legal and professional services focus (with EA placement capability)
- Local boutique agencies in major consulting markets (New York, Chicago, San Francisco, Boston) that specialize in professional services administrative placement
Search specifically for agencies with “professional services,” “financial services,” or “consulting” in their practice description.
LinkedIn Agency Search
Search LinkedIn for “executive assistant staffing” combined with your market location. Review agency pages for their described specializations, client industries, and notable placements.
Evaluate the recruiter profiles at each agency: do they describe professional services or consulting firm experience? Their background tells you something about the talent pools they access and understand.
Referrals from Other Consulting Firm Principals
The most reliable agency recommendation is a direct referral from a consulting firm peer who has used the agency and was satisfied with the placement quality. Ask specifically: “What agency did you use for your EA hire? How was the quality? Would you use them again?”
Managed EA Platform Agencies
For managed service (virtual EA) needs, the leading platforms include:
- Prialto: Strong professional services focus, dedicated US-based EAs
- Boldly: Premium US-based talent, flexible subscription model
- Belay: US-based, strong communication quality standards
- Time Etc: Professional caliber, flexible hour packages
Research each against your specific requirements: hours needed, geographic preference, client-facing communication requirements, and consulting industry experience of available EAs.
The Agency Engagement Process
Initial Brief (30 to 60 Minutes)
When engaging a placement agency, the initial brief is your most important investment. A thorough brief produces a targeted search; a vague brief produces a broad search with mixed results.
Your brief should include:
- Consulting firm description (size, focus, types of clients served)
- CEO profile (complexity of role, travel frequency, client interaction level)
- EA role scope (specific responsibilities in detail)
- Required experience level and industry background
- Communication quality requirements (including examples of what you need)
- Compensation range
- Timeline requirements
Candidate Presentation and Evaluation
Quality agencies present 3 to 5 candidates, not 15 to 20. A large pool of candidates indicates weak screening. A small, curated pool indicates rigorous selection.
Evaluate each presented candidate yourself against the specific consulting firm criteria you have defined, not just against the agency’s assessment. The agency’s evaluation is a filter; your evaluation is the definitive quality gate.
Reference Checks
Do not rely entirely on the agency’s reference checks. Contact former executives the candidate supported directly. References from consulting or professional services environments are most relevant.
For a full evaluation framework, see consulting EA candidate guide.
For an agency model comparison, see consulting EA agencies review.
According to McKinsey, the quality of professional support staffing is significantly determined by the quality of the brief provided to the search firm. Organizations that invest time in thoroughly defining support roles before engaging search firms consistently achieve better hire quality.
Negotiating the Agency Agreement
Placement fee: Standard is 18 to 25 percent of first-year base salary. Negotiation is possible, particularly for repeat engagements or multiple placements.
Guarantee period: Standard is 60 to 90 days. The guarantee provides a replacement search at no additional fee if the placed candidate leaves or is terminated within the guarantee period. Negotiate for the longer guarantee period.
Exclusivity: Some agencies request exclusivity for a defined search period. Evaluate whether exclusivity is appropriate based on the agency’s track record and the urgency of your timeline.
Temp-to-perm fee structure: If you want the option to convert a temporary placement to permanent employment, negotiate the conversion fee upfront. Some agencies include this in the initial agreement; others add it at conversion.
When Agency Placement Is the Right Choice
Agency placement makes sense for consulting firms when:
- You are hiring a direct employee (W-2)
- You want professional search support to access passive candidates
- You have a specific timeline and want to accelerate the process
- You want the guarantee protection of a professional placement
- The quality of the EA hire is high-stakes enough to justify the agency fee
When you do not need direct employment and value speed and convenience over direct-hire control, managed virtual platforms provide a faster alternative at comparable or lower cost for the quality of service delivered.
Conclusion
Finding the right executive assistant agency for consulting and professional services requires identifying agencies with genuine professional services track records, verifying their vetting process for consulting-relevant capabilities, and engaging them with a thorough brief that sets up a targeted search.
The placement fee is justified when the agency delivers what a self-directed search cannot: access to passive candidates, rigorous screening for consulting-specific capabilities, and the speed and professional quality that comes from specialized market knowledge. Choose your agency carefully, brief them thoroughly, and evaluate the candidates they present against the specific standards that matter for your consulting firm.
Related Reading
For further context, explore Find Executive Assistant Agency for Automotive and Find Executive Assistant Agency for Construction & Architecture.