How to Sell a Professional Services Firm — Conclave Partners

In most sectors the buyer inspects what they are acquiring: the plant, the stock, the client contracts, the code. In professional services the principal asset puts on a coat at six o'clock and leaves the building, and the only question that matters is whether it comes back on the Monday after completion.

That single fact shapes everything about how these firms are sold. It explains why the multiples are lower than owners expect, why so much of the price is paid over time rather than at closing, and why the negotiation that decides the outcome is usually about retention terms rather than about the headline number.

This article sets out what consultancies, agencies and advisory firms actually sell for, how buyers test whether client relationships belong to the firm or to individuals, and how to structure an earn-out you can realistically achieve.

Published ranges cluster in the mid single digits of normalised EBITDA. Professional services firms are commonly discussed at roughly 4x to 7x, with project-based strategy boutiques towards the lower end, general management consultancies around the middle, and technology or IT consultancies somewhat higher because their work tends to be stickier and more systematised.

Two structural reasons keep these numbers below what owners hope for. The first is transferability: the buyer is acquiring goodwill that is legally the firm's but practically personal. The second is scalability: growth requires hiring, and hiring in a competitive labour market is slow and expensive, so a buyer cannot simply deploy capital to expand what they have bought.

The word doing the work in that range is "normalised". In an owner-managed firm the partners typically take profit rather than salary, so reported EBITDA is not a profit figure at all — it is a residual after the owners have decided how much to pay themselves. A buyer will restate it by charging every working partner a market salary for the work they actually do, and only what survives that restatement gets multiplied. At Conclave Partners we rebuild that number before quoting any range, because a firm reporting €1 million of EBITDA with three partners drawing €80,000 each is not the same business as one reporting €1 million with three partners on €200,000.

This is the question the whole diligence exercise is designed to answer, and the answers buyers accept are documents rather than assurances.

Revenue by originating and delivering partner is the central schedule. For each of the last three years, which partner brought the client in, and which partner delivered the work? A firm where one partner originates 70% of revenue is a different asset from one where origination is spread, even if the profit is identical.

Client tenure and repeat rate come next. Clients retained for five years across multiple project types demonstrate an institutional relationship. A list of one-off projects, however prestigious, demonstrates a good salesperson.

The contracted position matters more than owners assume. Retainers, framework agreements and multi-year contracts transfer; verbal understandings and "we always get the work" do not. Where agreements exist, buyers check assignability, notice periods and whether a change of ownership triggers a right to terminate.

Concentration is priced as it is everywhere else, with the usual thresholds: below roughly 10% of revenue from a single client a firm is treated as diversified; between 20% and 30% concentration becomes an explicit pricing issue; above 30% many buyers restructure the deal around the risk rather than negotiate the multiple.

The honest presentation of these four items is worth more than any argument about quality of work. Buyers reconstruct all of them from the timesheet and invoicing data anyway.

Deferred consideration is not a sign of a weak business or a difficult buyer. In people businesses it is the normal architecture, and the European data shows how normal.

CMS's European M&A Study recorded earn-outs in 27% of transactions in its 2025 edition — matching the highest level in the study's history and running above its ten-year average — with earn-out provisions agreed in almost every third transaction in German-speaking markets. The study also found EBIT and EBITDA-based earn-out metrics becoming more common, and purchase price adjustments present in 48% of deals, with locked-box structures used in 54% of those without an adjustment. The 2026 edition, covering 601 European transactions completed during 2025, put strategic buyers at 69% of the market and financial buyers at 27%.

Those figures cover all sectors. In professional services the incidence is higher still, because the risk the earn-out addresses — that the people leave and the clients follow — is the defining risk of the asset.

Market practice in this sector typically places somewhere between a sixth and a quarter of total consideration in deferred and contingent elements, measured over one to three years, and private equity buyers frequently ask selling partners to roll a meaningful proportion of their proceeds into equity in the acquiring group, vesting over several years. Sellers who treat these mechanisms as an insult tend to negotiate badly. Sellers who treat them as the price of a people business, and concentrate on the terms rather than on their existence, tend to do well.

The earn-out is where professional services deals are won and lost, and four features decide whether it pays out.

The metric comes first. Revenue-based earn-outs are simplest to measure and hardest to manipulate, but they ignore margin and can be met by unprofitable work. EBITDA-based earn-outs align interests better but expose the seller to the buyer's cost allocations — management charges, shared services, group overheads — which is why the definition must be written in full rather than referenced. Client-retention earn-outs are common in this sector and are the most closely aligned with what the buyer actually fears, but they need a precise definition of what retention means: revenue from named clients, measured how, over what period.

Control after closing comes second and is chronically under-negotiated. If the buyer can move your team onto other projects, change pricing, impose group systems or restructure the practice, then your earn-out depends on decisions you no longer make. The agreement should record what the buyer may and may not do during the earn-out period: staffing levels, pricing autonomy, the right to pursue your pipeline, and how shared costs are charged.

Definitions come third. Ambiguity in an earn-out clause is resolved after completion, when the seller has lost all leverage. Every term — revenue, EBITDA, client, retention, the accounting policies applied — needs to be defined in the agreement and, ideally, illustrated with a worked example.

Leaver provisions come fourth. What happens to your earn-out if a fellow partner leaves, or if you are dismissed, or if you fall ill? Good-leaver and bad-leaver treatment should be agreed at the outset. In our experience at Conclave Partners, the two clauses that most often determine what a selling partner is actually paid are the earn-out definitions and the leaver provisions, and both are usually drafted late.

A buyer is not only buying you. They are buying the people who will still be delivering when you have gone, and they will want them committed before completion.

Expect three things to be required. Service agreements with meaningful notice periods for the partners who are staying, replacing whatever informal arrangements exist. Restrictive covenants — non-compete and, more importantly, non-solicitation of clients and staff — drafted to be enforceable in the relevant jurisdiction rather than aspirational. And a retention structure for the partners below you: rollover equity, a bonus pool tied to the earn-out period, or a promotion path made explicit.

The sequencing problem is real. You cannot bind your partners before you have a deal, and you cannot get a deal without evidence they will stay. The practical answer is to prepare the ground early: understand each partner's intentions privately, ensure the economics of staying are visible, and bring them into the process at the point where a credible buyer is committed. A partner who learns about the sale from a data room request is a partner who has started taking recruiter calls.

Buyers examine how the work actually gets done, because it tells them whether the firm can grow without the founders.

The leverage ratio — how much revenue is delivered by people other than the partners — is the clearest single indicator. A firm where partners deliver most of the billable work has limited capacity to scale and a severe key-person problem. A firm with a functioning pyramid of directors, managers and consultants has an institution.

Utilisation and rates get tested against the accounts, so they need to be measured consistently and reconciled. It is worth presenting revenue per fee earner across three years: the measure shows immediately whether the firm has grown through people or through price, and buyers calculate it themselves whether or not you provide it. Buyers also look at how much work is delivered by subcontractors or associates, since that flatters headcount efficiency but represents capability the buyer does not own.

Finally, buyers look for method: documented approaches, templates, trained delivery, sector playbooks. Anything that turns partner judgement into a repeatable process converts personal expertise into firm property, which is precisely what the buyer is trying to acquire.

Larger firms in the same discipline buy for capability, sector access or geography, and they usually understand the retention problem better than any other buyer type because they have lived it. They tend to structure conservatively and integrate quickly.

Adjacent professional firms — accountancy groups buying advisory, agencies buying specialist consultancies, technology integrators buying strategy capability — pay for cross-selling potential, and can be the highest bidder where the fit is genuine.

Private equity has become active in professional services consolidation, particularly in accountancy, technology consulting and specialist advisory. These buyers pay well for scale and process, expect substantial rollover, and are explicit that the partners are the investment.

Management buy-outs and internal succession remain common, often at lower headline prices but with terms the partners can influence. Establishing which of these routes a specific firm realistically has, before any materials are written, is where Conclave Partners spends the first weeks of a professional services mandate.

Restate the partner compensation. Show what the firm earns after paying every working partner a market salary. This single restatement determines the number that gets multiplied and should not be a surprise produced during diligence.

Produce the revenue schedules: by client, by originating partner, by delivering partner, by year, for three years, reconciled to the accounts.

Convert relationships into agreements wherever a client will sign — retainers, frameworks, multi-year terms — and check the assignment and change-of-control provisions in what you already have.

Reduce your own origination share deliberately. Introduce other partners to your major clients, and let the revenue schedule show the transfer over a full year. This is slow, unglamorous and worth more than any other preparation.

Sort the partnership documents: what happens on a sale, who consents, how proceeds are split. Disagreements between partners discovered mid-process are the most common cause of failure in this sector.

Document the delivery model — methods, templates, quality processes — so that capability is visible as firm property rather than individual talent.

Normalise the rest of the accounts honestly. Adjustments a buyer can verify are accepted; adjustments supported only by the owner's word cause the buyer to discount the whole earnings figure. Sellers who ask Conclave Partners where to begin are pointed at the partner compensation restatement and the origination schedule, because those two documents set both the multiple and the structure.

A prepared firm typically takes six to nine months from launch to completion. The financial diligence is lighter than in asset-heavy sectors, but the negotiation of employment terms, restrictive covenants and earn-out mechanics takes longer than sellers expect, and those documents are frequently on the critical path.

Confidentiality is more sensitive here than almost anywhere else. Staff are mobile, competitors recruit actively, and clients dislike uncertainty about who will serve them. A leak damages precisely the asset being sold.

Expect the buyer to want to meet the partners early and the wider team late. Managing that sequence is part of protecting the value.

Published ranges sit at roughly 4x to 7x normalised EBITDA, with strategy boutiques lower and technology consultancies higher. The critical word is normalised: partner drawings must be restated to market salaries before any multiple is applied, and that restatement usually moves the number more than the multiple does.

Because the asset can resign. Deferred and contingent consideration is the standard architecture in people businesses. CMS's European M&A Study recorded earn-outs in 27% of all European transactions in its 2025 edition — matching the highest level it has recorded — and the incidence in professional services is higher still.

Most run one to three years. Longer periods increase the risk that the buyer's own decisions determine the outcome, which is why the terms governing control during the earn-out matter as much as its length.

Then the deal is much harder and the price lower, because the buyer is acquiring a client list without the people who serve it. Understanding each partner's position privately, well before launch, is essential — a process that reveals partner disagreement mid-diligence usually ends badly.

It depends on whether you believe in the acquiring group, since rollover converts part of your exit into an investment with its own timetable and risk. It is common in private equity transactions and often improves the headline price, but it should be assessed as an investment decision rather than as a concession.

Roughly six to nine months from launch to completion for a prepared firm, with employment terms, covenants and earn-out drafting typically the slowest elements. The preparation that changes the price — shifting origination away from yourself and restating partner pay — needs a further twelve months to appear in the numbers.

Ildar Zakirov — Conclave Partners ildar@conclavepartners.com

Sergi Kosiakof — Conclave Partners sergi@conclavepartners.com