This article is based on my conversation with Ryan Imison, Head of M&A at Network Plus, on the RolyPoly podcast.
Most content about bolt-on acquisitions reads like a private equity textbook. You get the theory — multiple arbitrage, cost synergies, platform expansion — but almost never the operator's perspective on what actually happens after the deal closes.
Ryan Imison gave me that perspective. He's a chartered accountant by training who went from audit at Mazars to deal advisory at EY before crossing to the other side of the table to lead M&A at Network Plus — one of the UK's largest utilities contractors, with roughly £700M in revenue and 6,500 people across 94 depots nationwide. In his two years there, he's delivered three acquisitions, each designed to bolt on a new capability that Network Plus can immediately cross-sell into its existing client base.
What makes Ryan's approach interesting isn't the deal mechanics — it's the strategic clarity behind every acquisition. Network Plus doesn't acquire for scale. It acquires for capability. Then it takes that capability and plugs it into relationships with utility companies it's been serving for years. It's a buy-and-build strategy that treats each acquisition as a new revenue line, not just a bigger balance sheet.
Here's what I took away from our conversation.
The Strategy: Acquire Capabilities, Not Competitors
When I asked Ryan to walk me through the thesis behind Network Plus's acquisitions, the logic was straightforward. Network Plus's core business is repair and maintenance — reactive infrastructure work across water and power networks. When a water main bursts at 3am on a motorway, they're the ones fixing it.
But their clients — the UK's regulated water and power companies — increasingly want a single trusted partner who can do more than reactive maintenance. They want fencing for new physical security regulations. They want wastewater network enhancement. They want longer-term capital projects, not just emergency fixes.
So Network Plus acquires companies that already do those things well.
Their first acquisition, AC Landscapes, brought de-vegetation services for strategic highways — opening up a third vertical beyond water and power. Littlewood Group added fencing and security perimeter work, directly addressing new regulations requiring better physical security of national infrastructure assets. And Claret Civil Engineering brought wastewater expertise and longer-term capital enhancement capability.
None of these were competitors. Each one brought a complementary service that Network Plus could immediately offer to clients they already work with.
As Ryan put it: the play is about "what more can we do for our clients? We really want to be a partner of choice. We want to be a partner they ring in a time of need."
Why Acquire Instead of Building Internally?
This is a question I like asking every operator, because the answer reveals how they actually think about value creation. Ryan gave three reasons that, taken together, explain why bolt-on acquisitions beat organic capability building for platform companies.
Speed. Building a wastewater engineering team from scratch takes years. Finding the people, training them, winning initial contracts to build a track record — it's a long road. Acquiring Claret gave Network Plus that capability at scale, immediately.
Reputation. In utilities contracting, you're working on critical national infrastructure with serious health and safety requirements. Clients need to trust that you know what you're doing. Acquiring a company that already has that trust in a specific service area gives you instant credibility. You can't fake a 30-year track record.
Growth pace. As a PE-backed platform, Network Plus needs to grow quickly. Bolt-on acquisitions let them enter new service areas without the 3-5 year ramp-up that organic capability building demands.
What struck me was how clearly linked these are. It's not just about speed — it's about buying proven execution capability that comes with built-in client trust. That's a fundamentally different proposition from buying revenue or buying headcount.
The Cross-Sell Engine: How Bolt-Ons Create Revenue Synergies
Here's where Ryan's approach gets genuinely interesting, and where it diverges from the typical M&A playbook.
Most post-merger integration content focuses on cost synergies — removing duplicate functions, consolidating systems, cutting overhead. Ryan barely mentioned costs. His integration thesis is almost entirely about revenue synergies through cross-selling.
The mechanism is simple. Network Plus already has deep, long-standing framework relationships with nearly every major UK water company. Some of these relationships include eight to ten separate contracts covering different types of work. When they acquire a company with a new capability, the cross-selling happens in both directions.
Direction one: Introduce the acquired company's capabilities to existing Network Plus clients. Ryan used Claret as an example — they're a wastewater specialist with a strong relationship with Anglian Water. Network Plus goes to Anglian and says: "Claret has served you brilliantly for years doing wastewater work. We now bring X, Y, and Z additional capabilities. How can we support you further?"
Direction two: Introduce the acquired company to Network Plus's broader client network. Claret might have worked with three water companies. Network Plus works with eleven. That's eight new potential clients for Claret's capabilities, introduced through relationships that already have years of trust behind them.
Ryan described this as a "pretty extensive programme around introducing the newly acquired target to existing Network Plus clients and relationships." It's systematic, not opportunistic. And because these are framework-based relationships — typically five-year contracts — the switching costs for clients are high. Once you're in, you're in.
This is a model that more serial acquirers should study. The acquisition isn't the end goal. It's the start of a revenue multiplication process. You're not just buying a company — you're buying a capability that you can distribute across your entire client base.
Integration Starts Before the Deal Closes
One of the clearest messages from Ryan was that integration planning shouldn't wait for completion day.
"Integration as a workstream starts long before the SPA is signed and monies are transferred," he told me. "We're very much an acquirer that likes to work with the target management team, target shareholders to build out that plan."
During due diligence, Network Plus spends as much time on the integration plan as they do on financial and commercial assessment. By day one, everyone knows what happens next. There are no surprises.
This is something I've heard consistently across every episode of this podcast — and it's worth repeating because so many acquirers still treat integration as a post-close afterthought. The best operators start planning the integration during diligence and build it collaboratively with the target's management team.
Leave the Operations Alone
Ryan's integration philosophy has a clear dividing line: if it's operational, don't touch it.
Network Plus acquires companies because they're operationally excellent. The whole thesis depends on the target's ability to deliver. So the last thing you want to do is meddle with the frontline work that made the acquisition attractive in the first place.
What does get integrated — and heavily — are the support functions. Finance, payroll, HR, insurance, IT systems, tax, company secretarial. The things that are "necessary requirements of running and growing a business that perhaps the operators and founders don't want to do," as Ryan described it.
This creates a clean value proposition for the targets they're acquiring. You keep doing what you do best — delivering fencing projects, or wastewater engineering, or whatever your expertise is. We'll handle the back-office infrastructure that comes with being part of a 6,500-person group. And we'll introduce you to clients you couldn't have reached on your own.
It's a smart split because it protects the value you just paid for while adding genuine new value that the acquired company couldn't access alone.
Why Founders Sell: Beyond the Cheque
Ryan outlined three reasons founders sell to Network Plus, and only one of them is about money.
Succession. Many of the companies they acquire are founder-led businesses where the founder has reached a point where they want to plan their exit — whether that's retirement or something new. These businesses are their life's work. Founders want to pass them on to an acquirer that will maintain the legacy and reputation they've built. Network Plus's track record of growing acquired businesses post-deal gives founders confidence their baby is in good hands.
Growth ceiling. Some founders have taken their business as far as they can — or as far as their current team can. With Network Plus's central support functions, bidding capability, and client network behind them, the business can take steps that would be difficult standalone. Ryan was direct about their track record: "We've grown all of those substantially since the acquisition."
Size thresholds. In utilities contracting, there are minimum size requirements to qualify for major framework contracts. A standalone SME doing £10M in revenue might never qualify for a £160M framework. But as part of Network Plus, they instantly do. For founders with the ambition to work on bigger projects, joining the group removes that ceiling overnight.
What stood out to me is that Ryan didn't lead with financial returns. He led with what the founder gets beyond the cheque — succession planning, growth acceleration, and access to contracts they couldn't win alone. That's a compelling acquisition pitch, and it explains why they've been able to attract operationally excellent targets willing to sell.
The Mobilisation Advantage: Built-In Integration Practice
This was the most unique insight from our conversation, and something I haven't heard from any other guest.
In utilities contracting, when you win a major framework contract from a competitor, you don't just win the work. You inherit the entire workforce that was doing it. Overnight, hundreds of employees who were working for a competitor are now working for Network Plus under UK employment transfer law (TUPE).
Network Plus recently won a wastewater framework with Welsh Water. One minute to midnight, those workers belonged to the incumbent contractor. One minute past midnight, they're Network Plus employees. IT systems need switching. Payroll needs updating. Training on health and safety policies needs delivering. It's essentially a mini-acquisition that happens every time they win a major contract.
And this gives their internal teams — IT, HR, finance, payroll — constant practice at onboarding and integrating large groups of people and systems. As Ryan put it, "The business has a very well embedded culture of onboarding new operations quickly and successfully. That is actually quite transferable to an acquisition situation."
It's a structural advantage that most acquirers simply don't have. Where other companies might do their first integration and stumble through the practicalities, Network Plus's support teams have been doing variations of this work for years.
The Practical Stuff Matters More Than the Big Picture
This was a refreshing moment of honesty from Ryan. Coming from a professional services background — Big Four accounting, deal advisory — he was used to focusing on the strategic picture during transactions. The financial model. The synergy case. The big-picture objectives.
What he underestimated was how much the small, practical things matter to people going through a transition.
"Can you log on to the IT system properly on a Monday morning? Can you find where to go when you need support with something? Do I know who to call?"
These are the things that determine whether people feel like the acquisition is working or falling apart. And unless you're the person using the supply chain ordering system every day, you probably wouldn't think to ask about them.
Ryan's approach now is straightforward: for the first six to eight weeks after an acquisition, senior Network Plus executives are physically on-site at the acquired company for a couple of days a week. They commandeer a meeting room and run open drop-in sessions. No agenda — just "ask us whatever, whenever you want."
The themes that emerge from those conversations get addressed and communicated more widely. It builds trust, surfaces practical issues early, and shows new colleagues that the acquirer actually cares about getting the details right.
And when things do go wrong — because something always will — the key is reacting quickly and communicating openly. "The vast majority of people are understanding," Ryan noted. They know that transferring an IT system from one company to another won't be flawless. What they need to see is that you acknowledge the problem and fix it fast. That earns more trust than a perfect plan that never needed testing.
Getting the Integration Cadence Right
When I asked Ryan about mistakes, he was thoughtful about framing this as a learning rather than a horror story. His answer was about cadence — the timing and pace of integration activities.
The instinct, especially in a PE-backed environment, is to move fast. Deliver the synergies. Show the value. But moving too fast on certain workstreams can create friction. Moving too slowly means the acquired team is excited to be part of the group but frustrated that nothing's happening.
His practical advice: dedicate enough time and focus to do it properly. The people involved in integration are usually doing it alongside busy day jobs. If you want things delivered quickly and well, some of those people need enough focused time to make it happen — without pulling everyone out of their daily work.
He also flagged something that sounds obvious but gets overlooked constantly: factor in what else is going on. What other big contract bids are happening? What recruitment needs to happen before certain integration workstreams can start? What about holidays — especially for the target's management team, who just went through a gruelling due diligence process and probably need a break?
It's about planning the integration timetable with the same rigour you'd apply to the deal itself, accounting for all the competing demands on people's time.
Be Deliberate: Advice for First-Time Acquirers
Ryan's closing advice was deceptively simple: be deliberate about what you're trying to do.
There are plenty of acquisition opportunities in any sector. But unless you have a clear focus on what you're building — whether that's new capabilities, new markets, new service lines — you'll be "running around like a headless chicken" evaluating opportunities that don't fit.
More importantly, a vague strategy makes it nearly impossible to assess targets properly or to integrate them successfully after the deal. If you don't know what you're building, how do you know what the right next piece looks like?
Ryan's observation is that many first-time acquirers have an end goal that's "a little bit too vague and unfocused." Having a clear, deliberate acquisition strategy — and executing against it — is probably the single biggest differentiator between platforms that create value through M&A and those that just accumulate businesses.
