External growth strategy: the key steps to successfully acquire a competitor

📊 In brief

External growth allows companies to quickly acquire market share, skills, or a critical size by buying competitors or complementary businesses. Unlike internal growth, this strategy accelerates development without building from scratch. SMEs are the most active players in this movement in France: according to Bpifrance, 40 % of growth companies have made at least one acquisition. To succeed, you must follow a rigorous process: define your investment thesis, target the right targets, carry out a due diligence without compromise, negotiate a fair price with appropriate guarantees, and prepare a structured post-acquisition integration. The major pitfalls include overpaying, excessive indebtedness, and poorly managed cultural shocks. With a clear method and constant vigilance, a mergers and acquisitions operation becomes a true lever for value creation.

🎯 Understanding the external growth strategy: a strategic acceleration

Imagine this scene: you run an industrial SME based in Lyon for fifteen years. Your competitor in Grenoble has just launched a laser technology that your customers are already asking you for. Several months (or even years) of research and development to catch up? Or a targeted acquisition that puts you straight back in the race? This is where external growth shows its full power.

External growth is the art of acquiring a company (or a business unit) to accelerate your development. Unlike organic growth, which relies on internal development—new products, hiring, progressive investments—it allows you to skip steps. You don't reinvent the wheel: you buy one that already works.

It's particularly relevant for SMEs seeking rapid transformation. Buying your competitors represents an effective strategy to cross critical thresholds: gaining active customers immediately, establishing yourself in a new territory without starting from zero, or integrating a rare expertise that would have taken years to develop internally.

🔑 The concrete motivations behind a strategic acquisition

Why does a company choose to grow by acquisition rather than cultivate growth organically? The reasons are often very pragmatic. Market share acquisition is the first: you gain active customers, ongoing contracts, an immediate revenue base. It’s like skipping a step in a race where time is costly.

Diversification is another major motivation. You add a complementary product or service that smooths your revenues and strengthens your resilience against market fluctuations. Think of an SME making IoT sensors for food production that buys a small digital services company that already owns a software platform. Suddenly, it can offer a turnkey solution to its clients, which multiplies the value of each sale.

Geographic expansion also solves a classic problem: you are a leader in Brittany but absent from the Pays de la Loire. Starting from scratch requires years of commercial investment. Buying a well-established Nantes distributor? It instantly gives you a warehouse, a fleet of vehicles, and a field team that knows the market.

💰 The concrete benefits and hidden risks of an acquisition

A well-executed acquisition creates tangible, almost immediate value. You don't have to build from zero: a quality target brings loyal customers, established distribution channels, and market-validated expertise. You buy time, and in business, time is literally money.

Operational synergies quickly release gains. You pool purchasing, production, IT, even your salesforce. Costs fall, margins rise. A SaaS SME CEO in Lille who buys a small publishing firm in Strasbourg with 500 active licenses can immediately offer their own solutions to those 500 new clients. Their customer acquisition cost collapses. That's the real power of external growth.

But every coin has its flip side. Overpayment is the most common trap: valuation multiples disconnected from reality, fantasized synergies, an earn-out poorly structured. You pay too much for what you get, and your long-term returns suffer.

Excessive indebtedness then strangles you. Too much debt, strict repayment clauses, and your ability to invest elsewhere vanishes. Your cash becomes the nerve center of the battle—a battle you quickly lose.

Then comes the cultural shock, often underestimated. Two companies, two ways of working, two different histories. Key departures, a drop in team engagement, duplicated processes. The value of the acquisition erodes if integration fails. That's why the external growth strategy for SMEs requires a methodical approach where every detail matters.

🛠️ The five key steps to structure a successful acquisition

1️⃣ Define your investment thesis: the compass that guides everything

Before looking for a target, you must know what you are really looking for. It's your first line of defense against “heartfelt” acquisitions that go sour. This step consists of framing your objectives with numbers, concrete elements: why this acquisition? What additional revenues do you expect? What new offering for your existing customers?

Also define your ideal target criteria as precisely as possible. Which sector? What revenue size? What type of customers? And above all, how far are you willing to go in terms of price? Be realistic, not dreamy. The first deliverable, simple and direct, will be a one-page investment thesis note. It is your compass.

2️⃣ Targeting and quick validation: hunt without wasting your strength

Once your thesis is set, the hunt begins. You must find companies that really fit your criteria. Use sector databases, your professional network, but don't forget the “hidden market”: companies that are not officially for sale but could be with the right approach.

The objective? Build a shortlist of a few relevant targets. Then launch an expert fast diagnostic. In five days, with a specialist, you can already spot the “false positives”—those companies that look ideal on paper but hide problems. This saves you time and energy on dead-end leads.

3️⃣ Structured due diligence: look under the hood without naivety

The due diligence is the phase where everything is dissected. It’s like running an ultra-precise MRI before a major operation: you want to know everything, the strengths but also the weaknesses and hidden risks. Teams of experts will analyze separately the financial, legal, tax, HR, technical, and commercial aspects.

Ask yourself key questions during this phase. Customer concentration: does more than 20% of revenue come from only three clients? If so, red flag. Quality of EBITDA (earnings before interest, taxes, depreciation and amortization): is it sustainable or inflated by exceptional items? Off-balance-sheet liabilities: are there hidden commitments, ongoing lawsuits, guarantees that could cost you after signing?

This is where traps are detected. Vigilance is absolute.

4️⃣ Negotiation and structuring: turn data into a solid contract

Now that you know what you are buying and the risks you are exposed to, it's time to negotiate. Your price must not be based on intuition, but on all the elements objectified during due diligence. It's your strongest argument.

To cover areas of uncertainty or risk, use smart mechanisms. The earn-out (a deferred price component paid later, conditional on future performance) protects you if the announced synergies do not materialize. The representations and warranties protect you against post-acquisition surprises. The net working capital adjustment ensures that the cash left by the seller corresponds to what was agreed. These tools are not details: they secure your investment.

5️⃣ Post-acquisition integration: where value is truly created

The act of sale is only the beginning. The real work, the one that creates value, starts after signing. The Post-Merger Integration (PMI) plan must be designed, even prepared, before signing. Yes, before. So you don't find yourself helpless on D-day.

It's your plan for making two companies become one, while avoiding the infamous cultural shock. Think about governance (who leads what?), synergies (how to pool strengths?), IT and production systems, branding, and above all, the first 90 days. These are the most crucial. Set three simple KPIs to monitor this integration: customer retention (how many new customers stay?), gross margin (your direct gains), and net cash (available cash). These figures will tell you whether the integration is a success or whether you need to adjust quickly.

📍 Choose the right acquisition strategy according to your situation

🔄 Horizontal acquisition: strengthen your offering

Imagine your competitor launches a product that your customers already ask you for. Your range is good, but it lacks that little thing that would make the difference. That's your “pain point,” and the solution is often a horizontal acquisition.

You buy a competitor or a company that offers very similar or complementary products. The idea: broaden your range, become stronger in your core business. Take a concrete example. You manufacture high-end office furniture. But you don't have ergonomic chairs. Your customers buy them elsewhere. If you buy a specialist in ergonomic seating, what happens? Your average basket increases instantly. Cross-selling (selling your products to their customers and vice versa) is almost immediate. And your negotiating power with suppliers soars.

⛓️ Vertical acquisition: control your value chain

What if your problem is the volatility of raw material prices? Or an excessive dependence on a single partner? Your margins take a hit, and delivery reliability too. That's when you consider a vertical acquisition. You buy either a key supplier (upstream) or an important distributor (downstream).

An agro-food SME that buys its primary packager thus ensures better production reliability, stabilized packaging costs, and can bring its products to market faster. In addition, it gains valuable field data. What's powerful is that you secure part of your activity. You take back control. No more unpleasant surprises.

🌍 Geographic acquisition: conquer new territories

You know your customers are waiting for you in a new region. But you have no presence there. Starting from zero is long, expensive, and risky. It's time to think about a geographic acquisition. You take over a company already established locally, with its customer base, its operational warehouse, and above all, its commercial team that knows the field.

A B2B distributor leading in Brittany but absent from Nantes? Acquiring a Nantes player is a masterstroke. The machine is up and running instantly. To make integration as smooth as possible, first look for a partner with cultural proximity and IT compatibility. That will save you many headaches.

🚀 Technological acquisition and acqui-hiring: boost innovation

What if your biggest challenge is the speed of innovation? You want to move faster than your competitors and integrate cutting-edge solutions without waiting. Two tactical approaches can help.

First, technological acquisition. You buy a small team that already has a key module, an innovative technology ready to use. You're a SaaS publisher and you integrate a client scoring AI engine already deployed across about thirty accounts? Your time-to-market shortens, and the perceived value for your customers soars.

Then, acqui-hiring (talent acquisition). The primary objective is the talent itself. You integrate an entire senior team, experts, to accelerate a project or technical roadmap. But beware: plan a real 24-month retention plan for these teams. Set clear goals from the first month. Otherwise, you will have just bought CVs.

💼 Concrete example: how value is really created

Let's take an industrial maintenance SME based in Lyon. Revenue: €8 million. EBITDA: €1.2 million. It buys a regional competitor with revenue of €3 million and an EBITDA of €400,000. Acquisition price: €2 million.

Financing: €800,000 of cash + €1.2 million of debt. Post-acquisition, what happens? The group reports €11 million in revenue and €1.8 million EBITDA—i.e., €200,000 of identified synergies. Before the acquisition, the group's value was estimated at €7.2 million (6 times EBITDA). After, it rises to €12.6 million (7 times EBITDA, because a larger size justifies a higher multiple). Value creation: €5.4 million for an investment of €2 million. That's more than double the capital invested.

But this value creation relies on flawless integration execution. If synergies do not materialize, if key customers leave, if teams fall apart, value erodes quickly. That's why preparation and rigorous monitoring are non-negotiable. To go further in structuring your strategy, consulting a comprehensive guide on external growth can shed light on the steps not to miss.

🎯 Absolute points of vigilance not to be neglected

Integration is the keystone. The statistics speak for themselves: 50 % of acquisition failures are linked to poor post-acquisition integration. It's not a technical matter: it's human, cultural, strategic. You cannot leave this phase to chance.

Do not overpay is also vital. Stay disciplined on valuation, even when the target is strategically attractive. The emotional crush is the shortest path to a bad deal. Valuation multiples must remain anchored in the reality of current performance and validated synergies.

Cultural alignment is often underestimated in SMEs. Two companies with different values, processes, and ways of working clash quickly. Investigating this compatibility during targeting saves years of post-acquisition friction. To structure your approach globally, exploring a global external growth strategy offers proven frameworks for reflection.

Imagine: you buy a great SME, but its teams work in a “command-and-control” mode while you have a startup agile culture. The best talents leave within three months. The promised synergies disappear. You end up with a dead weight that costs a lot and returns little.

🔍 Financing your acquisition: sources and structures

You don't need millions in cash to succeed in an acquisition. Classic financing sources for SMEs include self-financing (your available cash), bank debt (medium/long-term loans), private equity growth funds, vendor credit (the seller finances part of the purchase), and sometimes share swaps.

An M&A advisor helps structure the optimal financing depending on your situation. The idea is to mix sources so the structure does not strangle you. If you borrow €1.5 million but your additional EBITDA only generates €300,000 per year, interest charges will eat into your margin. That's why the simple rule remains valid: the additional EBITDA should cover at least twice the interest charge related to the financing.

Do you need support to refine these calculations? An expert can validate your borrowing capacity and advise you on the optimal mix between debt, equity, and vendor credit. It’s an investment that often pays back tenfold by avoiding a poorly structured acquisition.