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How to Build a Scalable Accounting Platform for Roll-Ups

Planning a rollup? Learn how to build a scalable finance & accounting platform to handle the complexities of integrating multiple acquisitions for a successful rollup strategy.

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A roll-up only compounds value when every acquisition lands on a unified accounting platform quickly. Private equity firms that build that platform can absorb a new company in one to two months instead of a year. The ones that don’t pay for it at exit, when a buyer finds the revenue was recognized differently at every entity they bought.

In the ideal roll-up, a sponsor acquires a platform company at a discount, guides it through an acquisition spree, and consolidates a swath of the market into a single industry leader. Then buyers line up—only to discover inconsistencies in how revenue was recognized across the underlying entities.

It’s not a deal-breaker, but it changes the tenor of the negotiation and can shave points off the price. The fix is a repeatable accounting platform that every new acquisition plugs into on day one.

Bill Klein, former President and Co-Founder of Consero Global, points to three problems a sponsor has to solve to scale the finance function during a buy-and-build: people, process, and data.

“First, there’s a question of personnel—these smaller entities often have staff that isn’t the right fit for larger institutions with more rigorous processes, and there’s always turnover, especially among junior staff. Second, there’s often inefficient processes that were adequate for a smaller enterprise but can hinder the consistency and quality of the financial reporting. And finally, the very nature of buy-and-build involves merging siloed and disparate data and systems.”

Bill Klein, former President and Co-Founder, Consero Global

Solve all three quickly and the upside is real. As Klein puts it, “if they can align the right people, processes, and systems as soon as they complete an acquisition, GPs can move quickly to make the most of that latest deal.” That’s a tall order as a platform company onboards one entity after another—which is exactly why it pays to build the platform once and reuse it, rather than reinvent the finance function with every acquisition.

Our companion eBook walks through each building block in depth—the integrated software stack, the dual-ledger reporting that serves both GAAP and the GP, and the centralize-standardize-automate sequence Consero runs on every roll-up. Use the download link on this page to get the full version.

Why PE Firms Run Roll-Ups

The logic is straightforward: acquire multiple small companies, merge them, and build economies of scale under a single brand with shared sales, marketing, and operations. The value is created through a much larger entity that produces higher profits and commands a higher valuation multiple at exit.

That multiple only holds if the administrative infrastructure and reporting systems are standardized across every acquired operation. which lives or dies on the accounting platform underneath.

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The Four Building Blocks of a Roll-Up Accounting Platform

Klein advises focusing on four building blocks when standing up the accounting platform a roll-up will scale on. None of them is a one-time task—each one has to hold up as the next acquisition closes, then the one after that.

1. An Integrated, Best-of-Breed Software Stack

Small businesses can cobble together what they need from desktop accounting applications, but that breaks down as the platform company grows in size and complexity. Klein identifies the most common failure point:

“We’ve seen some platform companies struggle as they try to use Excel, but that can get complicated and even dangerous when it comes to stating revenue.”

Bill Klein, former President and Co-Founder, Consero Global

The stack has to be integrated and extensible—able to sync with CRM systems and grow as the company does—so each new acquisition maps onto it instead of bolting on yet another disconnected tool.

This is where a unifying layer earns its place. Consero’s clients run their roll-up on a standard stack of best-of-breed applications and then see all of it through SIMPL®, Consero’s reporting and engagement layer that pulls the GL, AP, AR, and FP&A tools into a single real-time view. The applications stay best-in-class for each function; SIMPL is how a sponsor sees the whole platform—every acquired entity—in one place.

2. F&A Talent With Both Maintainers and Builders

Accounting talent isn’t interchangeable, and a roll-up needs a deliberate mix. Klein splits it into “maintainers,” who focus on day-to-day transactions, and “builders,” who go deeper—resolving integration issues with new entities, untangling thorny accounting questions, and implementing additional software capabilities.

Get the mix wrong and the cost lands on the most expensive person in the room:

“Without the full range of skill sets, a CFO can be distracted with the core functions of the finance unit, and not be able to think strategically about that next acquisition or making the most of what’s just been acquired.”

Bill Klein, former President and Co-Founder, Consero Global

3. Reporting That Serves GAAP and the GP

Every business needs consistent, timely data, but roll-ups need it two ways at once: GAAP-compliant financials, and a second set of books that strips out acquisition-related expenses so leaders and the GP can see the true performance of a given entity or product line.

With so much of the investment case running on that financial data, businesses like this multi-location healthcare company turn to Consero to standardize roll-up reporting and get exit-ready financials across every location.

“There needs to be a financial system that can manage those two sets of books, and if it’s just spreadsheets, that could lead to trouble. Say you have a business of urgent care centers spread across the country. The GP will want to review the financials not just by each center, but by each service—say a particular kind of blood test—and view performance across all locations. For that, they’ll need reporting that can do it.”

Bill Klein, former President and Co-Founder, Consero Global

4. Centralize, Standardize, Automate

Synergies are baked into every buy-and-build investment case, but they have to be earned with a deliberate process. Klein breaks it into three phases that run in order. First, centralize—because standardizing tasks across a distributed org is nearly impossible:

“We had a chain of yoga centers that were relatively close geographically but still decentralized, so every change in process—even something as small as how an expense was coded—had to be introduced to each location separately. We first had to centralize certain tasks to remove that burden.”

Bill Klein, former President and Co-Founder, Consero Global

Once processes are centralized, they can be standardized, so each new entity inherits the same way of working. Only then does automation pay off. Automation applied to messy, one-off processes just produces faster mess—the sequence is what makes it work.

“AI-enabled software can be powerful, but it has to be directed at the right repeatable tasks to deliver a healthy ROI.”

Bill Klein, former President and Co-Founder, Consero Global

Building the Platform Is the Hard Part and Where the Returns Come From

Distilling the work to four building blocks doesn’t make it easy. Each step takes time, attention, and judgment. Sponsors often tap an experienced CFO to run the platform company—then watch that strategic talent disappear into basic financial reporting. As Klein asks, “what good is high-level strategic talent if they spend all their time just trying to get basic financial reporting right?”

That’s the case for building the platform with a partner that has done it before—the way Consero scaled the finance function behind a $300 million PE-backed software roll-up. Consero can step into a new company and stand up all four building blocks in one to two months—”but that’s only because we’ve done this countless times before, across a range of industries,” Klein notes.

As an AI-enabled Finance as a Service provider, Consero brings the software stack, the F&A talent, and the standardized processes as a single operating platform, so a sponsor’s strategic talent stays focused on the next deal instead of the chart of accounts.

The platform is the foundation. Executing each acquisition on top of it—the day-one priorities, the cash protections, the integration sequence—is its own discipline. Stand up the platform company’s finance function first, and every future add-on has a standard to map against instead of a project to start from scratch.

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Frequently Asked Questions

A few questions sponsors and portfolio-company CFOs tend to ask about how SIMPL® fits the accounting platform a roll-up runs on.

Does SIMPL replace our general ledger or accounting software?

No. SIMPL is a reporting and engagement layer that sits on top of best-of-breed finance tools—your GL, AP, AR, expense, and FP&A applications—and unifies them into a single view. In a roll-up, each acquired entity can keep the right underlying systems while sponsors and operators see one consolidated, real-time picture. Consero’s finance team standardizes and reconciles the data across entities; SIMPL is how you see it.

How does SIMPL handle a roll-up where each acquired company uses a different accounting system?

That mismatch is the norm in a roll-up: acquired companies often run different general ledgers, AP tools, and even accounting bases (cash versus accrual). Consero’s team standardizes the chart of accounts and converts each entity onto consistent, GAAP-ready books, and SIMPL then layers over those systems to present one unified, real-time view of the whole platform. You get comparable financials across every entity—by company, service line, or location—without forcing each acquisition onto a single rigid system.

Is SIMPL available on its own, or only with Consero’s finance team?

SIMPL is available only as part of Consero’s Finance as a Service engagement, not as standalone software. That’s deliberate: a dashboard is only as reliable as the data behind it, and in a roll-up that data has to be standardized across entities running different systems. Consero’s team does that engineering and reconciliation; SIMPL gives sponsors and operators a single, real-time view of the result.

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