INSIGHT

Roll-Up Strategy: Due Diligence Considerations When Acquiring Multiple Targets 

Craig Hamm • May 7, 2026

Services: Due Diligence Services

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When a roll-up strategy is working, the logic feels almost self-evident. Buy several businesses in the same fragmented market, find the operational overlap, and build something worth more than the sum of its parts. That’s the theory.

What makes roll-ups harder in practice is that each acquisition brings its own financial history, operational quirks, and hidden liabilities, and those don’t always surface until after the deal closes.

This article covers the due diligence considerations that matter most when you’re acquiring multiple targets, and where deals tend to go sideways.

The Complexity Multiplies with Each Target

A single acquisition is hard enough to underwrite. When you’re buying several businesses in a compressed timeframe, the complexity compounds. Information comes in at different times, from sellers with different levels of financial sophistication, in different formats. Some targets have audited financials. Others have tax returns and a spreadsheet their bookkeeper built five years ago.

The challenge is maintaining consistent rigor across all of them. Deal teams under time pressure tend to apply the same diligence framework to every target, but not every business requires the same level of scrutiny in the same areas. A business with highly concentrated customer revenue needs a deeper look at those relationships than a business with hundreds of small accounts. Knowing where to focus takes judgment.

Quality of Earnings Is the Foundation

In any acquisition, a Quality of Earnings analysis is the starting point for understanding what a business actually generates. In a roll-up, it becomes even more important because the financials of smaller targets are often prepared on a cash basis, normalized for owner preferences, or quietly understated in ways that only emerge once you start adjusting the numbers.

Common adjustments in owner-operated businesses include:

• Backing out above-market or below-market owner compensation
• Removing personal expenses that ran through the business
• Correcting for revenue timing mismatches
• Identifying one-time items that inflated a single year’s performance

These adjustments can move EBITDA meaningfully, in either direction, and the starting EBITDA often looks quite different once the work is done.

The bigger risk in a roll-up isn’t any single target. It’s applying assumptions too broadly. If you use EBITDA from Target A to set your pricing expectations for Targets B through E without running the same process on each one, you’re building your platform on unverified numbers.

Working Capital Deserves Serious Attention

Working capital is one of the most negotiated and most frequently misunderstood elements of any deal. In a roll-up, getting the working capital peg wrong on several targets at once can put real pressure on the platform’s liquidity from day one.

The peg represents the baseline level of net working capital the business needs to operate without disruption after close. Set it too low, and you absorb a shortfall. Set it correctly, and the seller delivers the business in a condition that doesn’t require an immediate cash infusion to keep running.

For owner-operated businesses, working capital is often seasonal, poorly tracked, or managed in ways that reflect the owner’s cash preferences rather than the business’s actual operating needs. Some sellers accelerate collections or stretch payables in the weeks before close. Others have inventory practices that don’t match what the balance sheet shows. A trailing twelve-month working capital analysis, reviewed month by month rather than just at the period-end balance, gives you a much clearer picture of what the business actually requires.

Revenue Quality and Customer Concentration

In fragmented industries, a meaningful percentage of small businesses carry customer concentration risk that doesn’t show up prominently in the financials. One customer accounting for 25 or 30 percent of revenue might look acceptable on paper until you learn that the relationship is entirely personal, built over years between the owner and a contact who has no reason to stay after the deal closes.

For each target, pull a trailing 24-month revenue breakdown by customer. Look at retention trends, contract structures, and whether key relationships have any formal agreement behind them. If a significant customer relationship is tied to the seller personally, that’s a pricing consideration.

Recurring versus transactional revenue also matters more in a roll-up than in a one-off deal. If you’re building a platform, you want to know which parts of the revenue base are predictable and which require constant reselling. A portfolio of businesses where most revenue is transactional creates a very different operating picture than one built on contracted recurring revenue.

Hidden Capital Expenditure Needs

Sellers preparing their businesses for a sale don’t always maintain equipment and facilities the way they would if they planned to keep running them. Deferred maintenance is common, and in a roll-up where you’re moving quickly across multiple targets, it’s easy to miss if physical inspections aren’t treated as a standard part of the process.

For each target, request a fixed asset register and maintenance records for major equipment. If those records are incomplete or unavailable, assume the maintenance history is worse than represented. Walk the facility. Assess equipment age and condition against the useful life assumptions in your model. Any deferred capital expenditure you discover during diligence is a negotiating point; any you miss becomes a post-close surprise.

Across a portfolio of acquisitions, the cumulative catch-up capital expenditure from several targets with deferred maintenance can be significant, and it hits at exactly the time when you’re already deploying capital toward the platform’s growth.

Integration Planning Starts in Diligence

Due diligence in a roll-up is about understanding how each business will behave once it becomes part of a larger structure. Integration assumptions built without that understanding tend to be optimistic. Pay attention to the operational differences between targets.

• Do they use different accounting systems?
• Different payroll platforms? Different vendor relationships?
• Are there overlapping employees, shared service functions, or redundant facilities?

The synergies that justify roll-up valuations depend on integration working as planned, and that planning starts well before close.

Working With BPM

BPM’s transaction advisory team works with acquirers on the full range of due diligence for roll-up transactions, from Quality of Earnings analysis and working capital assessment to customer concentration review and pre-close integration planning. We’ve worked across a wide range of industries and deal sizes, and we understand what separates a well-underwritten roll-up from one that creates problems before the platform has a chance to mature.

If you’re building a roll-up strategy and want due diligence services from a partner who can keep pace with your deal timeline, contact us.