What does this article cover?
- What are you actually choosing between?
- What does it cost?
- What does eight weeks actually buy?
- Who are the firms?
- What goes in the brief?
- What does the market data say?
- Who should this article send away?
- Where does this break down?
- People also ask
- What I sell, and what I don’t
- About the Stagnation Assassin
A board that needs a senior operator in place inside two months is making a purchase most of its members have never made, on a deadline, using search results that mostly describe a different product. The word interim covers three delivery models with different speeds and different prices, and the published rate data overwhelmingly describes fractional work, which is part-time and cheaper. Sorting those out is the whole of what a first-time buyer needs, and it takes about ten minutes once somebody has done it.
What are you actually choosing between?
Three delivery models that get called the same thing. A retained search firm running an interim desk, a network marketplace matching from a pool, and a boutique bench of operators the firm knows personally. They differ on speed, vetting depth and price, in that order.
The retained search model. A large executive search firm with an interim practice alongside its permanent business. You get institutional process, references that have been checked properly, and a partner who is accountable if it goes wrong. You also get search-firm economics and search-firm timelines, both of which are the reason this model exists and the reason it is not always the answer.
The network marketplace. A firm holding a large pool of registered executives and matching against a brief. Fastest of the three by a distance, because the matching is a database exercise rather than a search. The trade is vetting depth: a pool of thousands cannot be known personally by anybody, so due diligence transfers to you.
The boutique bench. A smaller firm whose partners have worked with most of the people they put forward. Slower than a marketplace, faster than a search, and the vetting is genuine because the reputation risk is concentrated. The constraint is coverage: if your specific need is outside their bench, they either decline or reach for somebody they know less well.
Nobody presents themselves this way, which is why the distinction is worth making yourself. Ask one question of any provider: are the people you would put forward ones your partners have personally worked with, or ones in your database. The answer places them immediately.
What does it cost?
Most published figures answer a different question. Fractional executives run roughly eight to twenty-five thousand dollars a month in the mid-market for one to two days a week. Interim, meaning full-time and temporary, commands materially more than that for the same seniority.
This is the single most useful thing in the article, because a buyer searching for interim executive cost will land almost entirely on fractional pricing and budget from the wrong number.
Fractional is ongoing and part-time. Reported mid-market ranges sit at $8,000 to $25,000 a month for one to two days a week, with hourly work at $200 to $450. Another source puts the median across fractional C-suite roles at $10,000 to $14,000 monthly for fifteen to twenty-five hours.
Interim is temporary and full-time, and it prices differently. One firm publishing banded pricing puts interim chief financial officer engagements at $15,000 to $35,000 a month, split by scope: emergency ninety-day stabilisation at the top of the range because the person drops everything and starts within a fortnight, planned leave cover at the bottom. European data separately suggests interim commands twenty to forty per cent more than fractional for comparable seniority.
The placement fee is the structural difference between models. Traditional search firms typically charge twenty to thirty per cent of first-year equivalent salary, which one platform estimates adds $40,000 to $70,000 to the cost of a placement. That figure comes from a firm that does not charge one, so treat the framing as interested and the mechanism as real: ask any provider whether their quoted rate includes a placement fee, because two of the three models charge one and one does not.
A buyer searching for interim executive cost will land almost entirely on fractional pricing. Fractional is part-time and ongoing. Interim is full-time and temporary, and it costs materially more for the same person.
What does eight weeks actually buy?
A marketplace match in one to two weeks, a boutique introduction in two to three, and a retained search firm’s interim desk in three to six. The deadline in your brief rules out one of the three models before you have spoken to anybody.
Those are working estimates rather than published figures and they are the most decision-relevant thing on this page, so treat them as a starting hypothesis to test against whatever any specific provider commits to in writing.
The practical sequence for an eight-week deadline. Week one, write the brief and decide the model. Weeks two and three, take introductions from two providers rather than one, because a single source cannot be benchmarked. Week four, interview. Weeks five and six, references and negotiation. Weeks seven and eight, notice period and handover, which is the phase that always overruns.
That leaves roughly three weeks of actual search, which is why the marketplace and boutique models dominate genuine deadlines and why a retained search is usually a decision to accept a longer gap in exchange for better vetting.
One thing to establish in week one rather than week six: whether the person you appoint can sign, hire and terminate. An interim without those authorities is an expensive adviser, and the paperwork granting them takes longer than anybody expects.
Who are the firms?
Fewer independents than the listicles suggest. Heidrick and Struggles now holds Business Talent Group and markets the combination as on-demand talent. Spencer Stuart offers interim through its advisory arm. Cerius Executives remains independent and runs a network model of its own.
Check ownership before you check capability, because it has moved recently and it changes what you are buying.
Heidrick & Struggles is the largest name in this space and its interim business now runs through an on-demand talent offering that incorporates Business Talent Group, whose pages resolve under Heidrick’s own domain. Two things a buyer should know: this is the retained search model, with the strengths and the timelines that implies, and Heidrick itself went private in late 2025 in a transaction valued around $1.3 billion, backed by Advent International and Corvex. A private-equity-owned search firm is not worse. It is differently incentivised, and it is worth knowing.
Spencer Stuart offers interim and fractional placements through its leadership advisory services, weighted toward major transitions such as restructuring and post-acquisition integration. Same model, same trade-offs.
Cerius Executives runs the network marketplace model explicitly, with a pool described in the thousands, available on interim, fractional or direct-hire terms. That is the fast option, and the vetting caveat above applies.
For turnaround-specific interim work, firms in the restructuring market run their own benches and are frequently the better route when the situation is distressed rather than simply vacant.
What goes in the brief?
Five things, and three of them are usually missing. The outcome that ends the engagement, the decisions the person may take without asking, who they report to, what the organisation will be told about why they are there, and the handover.
Providers will work from a job description if you give them one, and a job description is the wrong document. It describes a permanent role, which produces candidates optimising for a permanent role.
The exit condition. Covered above and worth repeating here because it belongs in writing. Not a date. A state of the world.
Decision rights, listed. Can they terminate somebody. Can they sign a purchase above a stated value. Can they change a price. Write the list, get it approved before the search rather than after the appointment, and accept that an interim without any of these is an adviser being paid interim rates.
Reporting line. An interim reporting into the person whose work is being fixed cannot do the job. This is obvious written down and gets conceded constantly in the interest of not embarrassing anybody.
The internal story. Decide before day one what staff are told about why this person is here and how long for. In the absence of a stated version, the organisation writes its own, and the version it writes is usually worse than the truth and impossible to correct later.
The handover. Name who receives the work at the end and involve them from the start. An interim engagement with no named successor produces improvements that leave with the person who made them, which I have written about elsewhere as the defining weakness of buying capability rather than building it.
What does the market data say?
That demand has risen sharply, and that the largest firm in the category is the only one publishing the evidence. Heidrick reports C-suite interim engagements up 151 per cent since 2021, from a survey of more than 3,800 interim leaders.
Take the direction and discount the precision. The firm’s 2026 independent talent report carries the growth figure, and its Talent Lens survey of the interim population found eighty-five per cent had worked independently for more than a year, with new entrants rising from six per cent in 2020 to fifteen per cent in 2025. Separately, one industry report puts the global fractional population doubling from around 60,000 in 2022 to 120,000 in 2024.
Every one of those numbers comes from somebody who benefits from the market growing. That does not make them wrong, and it does mean nobody independent is measuring this. Two implications for a buyer.
The supply figures matter more than the demand ones. If the interim population is genuinely doubling and fifteen per cent are new entrants, the median experience level in any pool is falling, which is an argument for asking harder questions about the specific person rather than the firm.
And rising demand is the seller’s argument for moving quickly. Treat urgency introduced by a provider as sales pressure rather than market information, particularly given who is publishing the market information.
Who should this article send away?
Boards using an interim appointment to avoid making a permanent hire. That is a fifteen-month delay with a day rate attached, and the one role a temporary appointment cannot fill is the one genuinely needing relationships that outlast the engagement.
The tell is in the brief. If nobody can say what condition would end the interim engagement, it is not an interim engagement, it is a vacancy nobody wants to close. Write the exit condition before the search starts: a permanent appointment made, a process stabilised to a stated standard, a transaction completed.
A second group: companies that cannot define what the eight weeks is for. Speed is only valuable against a deadline that exists, and an interim hired quickly into an undefined mandate produces expensive activity while everybody works out what they wanted.
Where to go instead, and some of it beats all three models. If the role is genuinely permanent and the gap is coverage, an internal secondment plus a retained search costs less than an interim and builds somebody. If the situation is distressed rather than vacant, a restructuring firm with its own bench understands the situation better than a generalist interim provider. And if you need one specific piece of work rather than a person, a scoped project with a defined deliverable is cheaper and more accountable than a day rate, which I have written about elsewhere.
Where does this break down?
Every source here sells into this market. The rate data comes from fractional firms publishing their own pricing, and the only survey evidence belongs to the largest player in the category, which is also the firm this article names first.
That is the third article in this series where the available evidence turns out to be owned by an interested party, and the pattern is worth naming rather than apologising for each time. In categories where buyers purchase rarely and never compare notes, the only people with data are the people selling. It means the mechanisms in this article are more reliable than the numbers, because a firm has no reason to misdescribe how its own model works and every reason to present its market as growing.
Three further limits. The timeline estimates in the eight-week section are mine rather than published, and any specific provider may beat or miss them substantially. The rate ranges are almost all for fractional work, which I have flagged in the text, and genuinely comparable interim benchmarks for mid-market manufacturing do not appear to be published anywhere I could find. And I have named the firms that surface in the current record, which systematically favours those doing the most marketing.
One thing I would keep regardless of the sourcing problems: the three-model distinction is structural rather than empirical, and it will still be true when every number on this page has aged.
If nobody can say what condition would end the interim engagement, it is not an interim engagement. It is a vacancy nobody wants to close, and it will cost you a day rate for fifteen months.
People also ask
What is the difference between interim and fractional? Interim is full-time and temporary; fractional is part-time and ongoing. Most published rate data describes fractional work, and interim commands materially more for comparable seniority.
What does an interim executive cost in the US? Fractional mid-market engagements run roughly $8,000 to $25,000 monthly for one to two days a week. Interim chief financial officer work has been published at $15,000 to $35,000 monthly, banded by urgency and scope.
How fast can you actually place an interim? A network marketplace can match in one to two weeks, a boutique bench in two to three, and a retained search firm’s interim desk in three to six. An eight-week deadline effectively rules out the slowest model.
Which firms place interim executives? Heidrick & Struggles runs the largest offering, now incorporating Business Talent Group. Spencer Stuart places interim through its advisory arm. Cerius Executives runs an independent network model. Restructuring firms maintain their own benches for distressed situations.
When is an interim the wrong answer? When the role needs relationships that outlast the engagement, or when nobody can state the condition that would end it. An interim without a defined exit is a vacancy nobody wants to close.
What I sell, and what I don’t
I don’t sell consulting. My employment contract doesn’t allow it, so there is no engagement waiting at the end of this article and no proposal coming. Two things here are commercial: I speak for a fee, and I sell books. Everything else, including the audit, is free, and it stays free because it has to be. If you are writing an interim brief and want a second read on the exit condition before it goes out, ask at my contact page.
About the Stagnation Assassin
Todd Hagopian is a Fortune 500 transformation executive who has generated $3B in shareholder value across Berkshire Hathaway, Illinois Tool Works, Whirlpool, and JBT Marel, where he serves as Global VP of Product Strategy and Marketing. Known as The Stagnation Assassin, he is the author of two published books, The Unfair Advantage: Weaponizing the Hypomanic Toolbox and Stagnation Assassin: The Anti-Consultant Manifesto. His blog is published in 15+ languages and read by operators worldwide. Bring him to your stage via his speaking page or connect with him on LinkedIn.
The talk version asks a room what condition would end the interim engagement they are currently running. The pause before the answer is usually longer than the answer. Formats and fee are on my speaking page.