Buy-and-build is often associated with private equity: acquire a platform company, then add smaller companies around it to create a larger, more valuable group. But the logic is just as available to owner-led companies, and in many cases owners are better placed than financial buyers to execute it. They know the industry, the people and the realities of operations.
What separates successful buy-and-build strategies from a collection of acquisitions is a clear thesis, written before the first deal.
What a thesis is
A buy-and-build thesis is a short, explicit argument for why combining certain companies will create more value than they would separately. It answers four questions:
- What is the platform, and why is it the right base?
- What kinds of companies will be added, and why?
- Where exactly does the additional value come from?
- What capabilities are needed to execute it?
If the thesis cannot be written in a page, it is probably not yet clear enough.
Sources of value in buy-and-build
Value in a buy-and-build typically comes from a combination of these sources:
- Scale in purchasing. Better terms with suppliers.
- Shared functions. Finance, HR, IT and administration serving several companies.
- Cross-selling. Offering each company's products or services to the others' customers.
- Geographic coverage. Serving customers across a wider area, sometimes required by larger clients.
- Capability breadth. Becoming a more complete provider.
- Professionalisation. Bringing stronger management, systems and commercial practices to smaller companies.
- Valuation difference. Larger, more diversified groups are often valued more highly than small individual companies, though this should never be the only reason.
Be specific about which of these apply and how they will be realised. A thesis that relies on vague synergies is fragile.
Choosing the platform
The platform is usually the owner's existing company. It should have:
- A management team that can lead a larger group
- Systems and processes that can absorb additional companies
- A clear identity and culture that others can join
- Financial stability to carry acquisition risk
If the platform lacks some of these, building them first is usually wiser than buying quickly.
Defining the add-on profile
Describe the ideal add-on precisely: size, location, specialisation, customer types, ownership situation. Many buy-and-build strategies focus on founder-owned companies approaching succession, where the selling owner values continuity and a home for their team.
Also define what you will not buy. Clear boundaries prevent drift.
The operating model
A thesis should state how the group will be run. Common models include:
- Integrated: acquired companies are merged into a single operation with one brand and system
- Federated: companies keep their identity and local management but share certain functions
- Hybrid: integration in some areas, independence in others
The right model depends on where value comes from. If the thesis relies on cross-selling and shared functions, deeper integration is needed. If it relies on local relationships, more independence may preserve value.
Capital and pacing
Buy-and-build needs capital, usually over several years. Consider how much the platform can fund from its own cash flow, how much debt it can carry, and whether a partner with equity would accelerate the plan. Pacing matters too: acquiring faster than the organisation can integrate is a common cause of failure.
A simple thesis template
- Platform: our company, with its strengths and gaps
- Add-on profile: criteria and exclusions
- Value sources: the three or four most important, with how each will be realised
- Operating model: integrated, federated or hybrid
- Capabilities needed: people, systems and processes to build
- Capital plan: sources and pacing
- Milestones: what success looks like after each phase
Common pitfalls
- Buying because companies are available, not because they fit
- Underestimating the management capacity required
- Integrating too little to capture value, or too much and losing what made companies special
- Ignoring culture
- Financing that leaves no room for a slower year
Testing the thesis with the first add-on
The first add-on acquisition is the first real test of the thesis. Choose it carefully: ideally a company that fits the criteria closely, is small enough to integrate without overwhelming the platform and has an owner who is supportive of the plan. Measure the result honestly against what the thesis predicted. Did the expected value sources materialise? What took longer? Use those lessons to refine the thesis before accelerating, rather than scaling a model that has not yet proven itself.
How LXN works with owners
We work with owners to define and test buy-and-build theses, source and negotiate acquisitions, and build the operating foundation that makes integration work. Where we share the conviction, we can invest our own capital alongside the owner as a long-term partner in the platform.
[Discuss your company](/contact)