Per-MW pricing, regional variance, and cost drivers for owners scoping hyperscale & AI builds.
Salary benchmarks across the 14 mission-critical disciplines.
I’d choose retained search for scarce, high-risk hires - and contingency for clearly defined roles with enough qualified candidates. Typical U.S. fees run 25%–35% for retained search and 15%–30% for contingency, but the fee base and payment terms matter as much as the percentage.
Retained search usually means one recruiter, dedicated outreach, and payments owed even without a hire. Contingency generally means pay-on-hire terms, often with multiple recruiters. Neither guarantees a hiring timeline.
Quick Comparison
Before outreach, I’d put <u>fees, deliverables, and remedies in writing</u>. Define the role, compensation, hiring authority, required start date, and feedback deadlines. Then settle candidate ownership, references, replacement terms, and cancellation costs - so your search fits the project’s commissioning, safety, and turnover risks.
Retained vs Contingency Search: Fees & Fit for Data Center GCs
The difference goes beyond who pays. Who controls the search, and who answers for delays? Accountability means assigning an owner to each step, from verification through the final offer.
Retained search works best when the GC needs one accountable lead for a confidential search. Require a documented market map and outreach plan. The recruiter should identify relevant employers and leaders, approach passive candidates discreetly, and assess experience in schedule control, MEP coordination, commissioning, turnover, and client communication. These skills directly affect data center delivery risk.
Before outreach starts, approve compensation, technical requirements, location and travel expectations, and the final hiring authority. Give the recruiter timely access to hiring decision-makers. Require weekly or biweekly updates covering outreach, responses, screened prospects, compensation feedback, obstacles, and decisions needed. Aim to return interview feedback within one or two business days, and use a tracker with an owner and deadline for every next step.[2][4][5]
Contingency search works best when the role is clearly defined, so the GC can compare multiple candidates without delay. Require every submission to include compensation expectations, availability, location, authorization to work in the U.S., and screening evidence. Check schedule control, MEP coordination, commissioning, and turnover experience against the assignment. Electrical, controls, and commissioning-heavy roles still need targeted sourcing.[3][4]
When several recruiters participate, keep one submission log with the candidate, recruiter, role, receipt date and time, and status to manage competing claims. Agree on the submission ownership period and prior-contact rules before accepting candidates. Do not assume the first submission automatically earns ownership. A short submission window can reduce duplicate outreach without changing the contingency model.[3] These process differences also affect fee timing, exclusivity, and cancellation risk.
Retained search pays for the search process. Contingency search pays only for a qualifying placement. For data center GCs, the choice comes down to which model fits the role’s delivery risk.
Ranges and arrangements vary by agreement.
These terms carry more weight when the role affects the schedule, turnover, or owner confidence. The fee model should reflect role scarcity and project risk.
Define the fee base before agreeing to a percentage. Spell out whether it includes base salary, guaranteed bonuses, commissions, and listed cash incentives. Also state whether sign-on bonuses, relocation, equity, and vehicle allowances count.
Set minimum fees and list reimbursable expenses, taxes, and any fee adjustment if the candidate’s accepted compensation changes.
Retained fees are often billed at kickoff, shortlist, and placement. Those installments can still be due even if no hire closes. For contingency agreements, separate the event that triggers the fee from the invoice due date. Specify what happens if a candidate accepts but never starts.
A replacement credit is not a refund, and it rarely cancels the original invoice.[9][1] The agreement should spell out covered departure events, exclusions, the notification deadline, and the remedy. Coverage often excludes layoffs, role changes, role elimination, and nonpayment.[1][9]
Put these terms in the agreement. Don’t assume the search model settles them.
If funding changes, make clear whether the search is paused or canceled. In retained search, earned installments may still be due. In contingency search, a fee may still apply if an introduced candidate is hired within the fee-rights window.
Once fees and contract terms are set, the choice comes down to talent scarcity, confidentiality, and delivery risk.
Choose based on the talent pool and the cost of a hiring mistake - not the title alone. In data center construction, a vacancy that puts commissioning or owner confidence at risk calls for a different approach than one the current team can cover temporarily. Use the matrix below to weigh the tradeoffs.[14][10][16]
Contingency offers faster submissions; retained search reaches passive talent. Neither guarantees a hiring timeline. Work backward from the affected project milestone to set the latest acceptable start date. Then agree on submission standards and client response times. Getting résumés fast doesn't mean you have finalists.[10][16]
Two short scenarios show how these factors shape the choice.
A small pool of passive candidates, a confidential replacement, or complex stakeholder assessment can justify upfront fees and one accountable search partner. Weigh that commitment against the costs of leaving the role open: overtime, rework, missed turnover milestones, and replacement costs. Ask for evidence of commissioning leadership and owner-facing communication - not just a list of completed projects.[10][15][16]
Hypothetical example - mission-critical project executive: A GC must confidentially replace a project executive six months before integrated systems testing on a 1.5-million-square-foot hyperscale campus. Retained search fits because qualified leaders are scarce and a poor hire could jeopardize commissioning and the owner-facing relationship.[10][15][16]
Contingency fits a clearly defined role with several qualified candidates and a hiring team ready to act. But the title doesn't tell the whole story. Requirements such as live-data-center experience, commissioning knowledge, or travel can shrink the candidate pool and make a superintendent role harder to fill than expected.[1][10][14]
Hypothetical example - project manager: A GC needs a project manager for a regional data center build with a defined scope and several qualified local candidates. Contingency search fits because assessment is standardized, the hiring team can act quickly, and pay-on-hire terms are the priority.[1][10][14]
For data center GCs, agree on engagement terms before the search begins to protect mission-critical delivery, commissioning, and owner confidence. Choose retained search for scarce, high-risk leadership roles. Choose contingency for roles with a larger candidate pool where pay-on-hire matters. Put the search rules in writing before outreach so scope, speed, and accountability match the delivery risk.
Confirm the project type, phase, size, location, schedule, delivery method, and required start date. Define the role by its duties - not just its title - including MEP, controls, commissioning, QA/QC, safety, turnover, and owner-facing work.
Document pay, incentives, travel, lodging, relocation, benefits, overtime, classification, and work authorization. Specify whether the job is single-site, involves national travel, or follows a rotation. Clarify the reporting relationship, decision-making authority, expected tenure, and any post-project assignment.
Name the approver and required interviewers. Set the interview order and maximum length of each stage, along with deadlines for résumé review, interview feedback, reference checks, background screening, and offer approval. For time-sensitive mobilization, make feedback deadlines and the latest acceptable start date explicit.
Next, agree on the commercial terms that govern cost and accountability.
Confirm the fee percentage, fee base, invoice terms, expenses, and payment trigger. For retained search, list the milestone payments owed even without a hire. For contingency, define what triggers the placement fee. Document exclusivity, candidate ownership periods, prior-candidate rules, and duplicate-submission rules.
Require weekly written updates, screening summaries, reference checks, and evidence of each finalist’s relevant responsibilities. Define replacement coverage, exclusions, credit or refund remedies, and pause or cancellation costs.
Set milestone dates for the market presentation, first candidate slate, finalist interviews, and offer recommendation. Work backward from when the hire must be on site and productive. Tie deliverables and response deadlines to that schedule, and require a corrective-action plan for missed checkpoints.
Look beyond the fee percentage. Weigh it against lost productivity, project delays, safety issues, and the cost of a bad hire.
For mission-critical roles, those costs can far outweigh a 25% to 35% retained search fee. Deeper vetting and 6- to 12-month guarantees help reduce risk.
Contingency search offers lower financial risk for non-critical roles where speed matters. But internal screening, bad hires, and turnover can add costs that aren’t reflected in the fee.
Use retained search when a role is mission-critical, senior-level, or calls for passive candidates - people who aren’t actively looking and can’t be reached through job boards.
As a rule of thumb, choose retained search when three or more of these factors are high: the role’s importance to business goals, confidentiality needs, difficulty finding qualified candidates, need for passive talent, or the cost of a hiring mistake.
Retained search gives the role dedicated, exclusive attention and uses thorough vetting to reduce the risks of leadership hiring.
Ask for a 12- to 24-month placement log that shows which roles the firm filled - including project executives, superintendents, and commissioning leads - and what share of those placements falls within your exact segment.
Have the firm explain MEP coordination, N+1 redundancy, and integrated systems testing in plain English. If they can’t explain these terms clearly, that’s a red flag.
Request references from two hiring managers in your niche whose roles the firm filled within the last year. Don’t rely on curated case studies or HR contacts alone.
