Are bolt-on acquisitions common in small and mid-sized agencies?

You betcha. There's a whole discipline called programmatic acquisitions emerging in the US, with ambitious businesses acquiring multiple agencies every year to help them with strategic and scale development. Just about any profitable agency can buy another business; it is specifically not the realm of big business to use M&A to help scale. Particularly in volatile and tough markets like the UK is experiencing at the moment, a clear path to growth often include includes buying other businesses.

Do Small and Mid-Sized Agencies Hunt for Bolt-Ons?

Yes. Increasingly so. Ever heard of programmatic acquisitions? I'm meeting agencies all the time, not huge agencies, who are telling me they "tucked one in last year". I counted three just last week and not one of them had revenues over £3m.

So, bolt-ons (also known as tuck-ins) are most definitely not just the preserve of private equity platforms or holding companies. A growing number of small and mid-sized agencies are using acquisition as a deliberate growth strategy, even without institutional capital behind them.

The original question was "is it common". Apparently yes. As it turns out, super smart owners and MDs have been quietly getting on with it for ages. They just don't shout too loud about it. Now I've become aware that it's common I'm seeing it everywhere.

Of course, I'm also now part of the world's first advisory programme for programmatic M&A too, more on that at the end...

First up, let's get some shorthand out of the way. SMA = Small to medium sized agencies on an assumption that small = £3m – £5m, medium is £5m - £15m.

Why SMAs Pursue Bolt-Ons

SMAs often find that organic growth alone can be slow, lumpy, and exposed to client concentration risk. They operate in a 'structural squeeze'.

Revenue is often project-led rather than contracted. It might come under a wider-ranging MSA and might even have a spend 'commitment'. But, the past few years have taught us all that commitment ain't the same as contracted. Project commitments fall away at short notice all the time and that really hurts growth. Especially if your top three clients can represent up to half the business... and when new business capability tends to sit with one or two rainmakers. Sound familiar?

For SMAs, growth comes in bursts, not in smooth compounding lines. Add the temptation to hire ahead of revenue and the exposure to sector budget cycles, and organic expansion becomes dangerously volatile rather than predictably scalable.

Many SMAs therefore look to M&A to solve structural issues in their agencies. This is super smart. A bolt-on can accelerate three things quickly. It can solve a lot more too, but let's start with these three.

Capability depth
Acquiring a specialist performance team, a design studio, or a sector-led boutique can shift positioning overnight. When running my buy-and-build I bought two capability bolt-ons to accelerate me into markets or buy me top level vendor certifications.

Client diversification
Buying revenue is often more predictable than winning it. A well-underwritten acquisition can rebalance a client portfolio in a single transaction.

Margin improvement
Smaller agencies with weak back-office discipline or sub-scale leadership often improve post-acquisition. Shared finance, HR, and sales infrastructure can lift EBITDA by several points.

In short, bolt-ons are a route to step-change rather than incrementalism.

The Confidence Constraint

The difference between SMAs who are doing deals, and those who aren't is belief. Many agencies I meet think that M&A is the preserve of private equity firms, holding companies or privately funded platforms. Honestly, I used to think the same thing too. But as I've come across more and more small agencies who are quietly tucking in competitors to grow, I've realised that almost every agency should be including M&A in its strategy.

Learning how to do M&A should be a priority for agency owners and leaders. More on that later.

The Capital Constraint

What larger platforms and professional investors are good at is how they use money. Small companies often are not as educated, experienced or creative in how they think about cash. So, they approach deals differently. Professional investors like to use other people's money. They always risk adjust expectations and they rarely invest unless they know they can divest easily in future.

Private equity investment director: "Everything about the agency looked great. Strong and sustainable growth, distinctive value proposition, deep leadership team and good margins. We just couldn't see who would buy it from us at the end of our cycle, so we had to pass".

The SMAs I've met are not necessarily using cash well. They are funding bolt-ons through their cash reserves or through equity swaps. It's easier to spend cash than it is to earn it. Capital is a massive constraint, so it should be used wisely.

Here's what I mean. If you've got £500k in the bank and you spend it all on an acquisition, you've removed your safety buffer. If the integration goes badly, if you lose a client three months later, if the key person at the acquired agency walks out, you've just turned a growth strategy into an existential crisis. Cash reserves exist for a reason. Spending them unwisely on a deal that wasn't properly structured or de-risked is how agencies get into trouble.

The smarter SMAs I'm seeing are thinking about financing differently. Some are negotiating deferred consideration, paying the seller over time, tied to performance. Some are using earn-outs heavily weighted to years two and three. A few are even getting creative with vendor financing, where the seller effectively loans part of the purchase price back to the buyer, secured against future cash flows.

The point is this: if you're going to do bolt-ons without institutional capital, you need to be disciplined about how you structure the deal. Because unlike a PE-backed platform, you don't have a credit line sitting behind you if something goes wrong.

The Integration Reality

This is where most SMA bolt-ons either create genuine value or quietly unravel.

The problem is that integration is hard work, much harder than the deal itself. And most SMAs are already running at capacity just managing their existing operations. The founder who negotiated the acquisition is also the person who needs to be in client meetings, overseeing the P&L, and probably still doing some of the work.

What I've learned from talking to the agencies who are doing this well is that they plan the integration before they sign the deal. Not in vague terms. In specifics.

Who reports to whom? When does the acquired team move onto your systems? What happens to the acquired agency's brand, does it get absorbed, does it run in parallel, or does it become a trading style? Which clients are you keeping separate and which are you cross-selling into immediately? What does success look like at 90 days, six months, and twelve months?

If you can't answer those questions before you complete the deal, you're not ready to do the deal.

The agencies I've seen struggle are the ones who approached the acquisition romantically. They loved the idea of being bigger. They liked the founder they were buying from. The numbers looked good on a spreadsheet. But they hadn't really thought through the operational reality of merging two businesses, two cultures, and two sets of client expectations while still hitting their own revenue targets.

The result? The acquired business underperforms because no one is properly managing it. The original business suffers because the leadership team is distracted. And twelve months later, everyone wishes they'd just focused on organic growth instead.

The SMAs who succeed treat integration as a project with a budget, a timeline, and a single person accountable for delivery. That person is often not the MD. It's someone senior enough to make decisions but focused enough to actually execute them.

What This Means for You

If you run a £3m–£15m agency and you've never seriously considered M&A as a growth lever, it's worth at least exploring. Not because you should definitely do a deal. But because ruling it out without understanding it properly is leaving strategic options on the table.

The agencies doing this well aren't doing it recklessly. They're doing one deal every 18–24 months. They're buying small agencies with £300k–£1m revenue that slot into an existing capability gap or client sector. They're keeping deal structures simple. And they're treating integration as seriously as they treat new business.

The ones doing it badly are the opposite. They're doing deals opportunistically because a broker called them. They're stretching their cash position to the limit. They're assuming that "culture fit" will sort itself out. And they're surprised when it doesn't.

If you're going to move into programmatic M&A, do it properly. That means:

• Building a thesis first. Know what you're buying and why before you start looking.

• Understanding deal structure and financing options beyond "I'll pay cash".

• Having a realistic view of your own integration capacity.

• Treating this as a long-term strategy, not a one-off opportunistic move.

And yes, this is learnable. Which brings me to the programme I mentioned at the start.

The Advisory Programme

I'm now part of the world's first advisory programme specifically designed to help small and mid-sized agencies build programmatic M&A capability. It's not a broker service. It's not about us finding you deals or running a process for you. It's about teaching you how to do this yourself and coming on the journey with you, but as a board advisor, not a broker. This means things get done properly, sustainably, and without blowing up your balance sheet in the process.

There's a formal training programme that covers deal origination, valuation and structuring, due diligence, negotiation, and integration planning. It's designed for agencies who want to make M&A part of their growth strategy but don't have a corporate development team or prior M&A experience.

If bolt-on acquisitions are becoming a standard growth tool for £3m–£15m agencies, the ones who know how to do it well are going to pull away from the ones who don't. And the gap will widen quickly.

If you're interested, get in touch. Let's talk about whether this makes sense for your agency, and if it does, how to make sure you do it right.