Building the finance function your business needs: a guide for owners of growing organizations

For many owners, building the right finance function for growing businesses becomes urgent only when a lender, buyer, or auditor exposes the gaps. The question is usually not whether that gap will surface, but how much leverage it gives to someone else when it does.

The gap may show up when a lender asks questions your financials can't answer cleanly, or during diligence, when inconsistencies you've lived with for years suddenly matter to a buyer. Sometimes it emerges more subtly, through decisions made on incomplete or delayed information that feel reasonable in the moment but limit what the business is actually worth.

In our experience, the circumstances that force the issue are different for every business. What is consistent across nearly every situation we have encountered is that the decision to invest in the right finance support comes later than it should.

The reactive finance problem for growing businesses

Growth-stage businesses operate in a tension that is easy to underestimate. They are often too large to run effectively on instinct and a spreadsheet, but not yet at a scale where investing in senior finance talent feels obviously justified. The result is a finance function that perpetually lags behind the business it is supposed to support.

The trigger that finally forces action is very often external: a bank requires audited statements; a transaction surfaces gaps in the books; a cash shortfall arises that better forecasting would have anticipated. These are reactive moments, and in our experience, they are among the most expensive because they combine higher professional fees, management distraction, and weakened negotiating leverage.

In one recent example, we supported a client going through their first financial statement audit who had to confront a gap in their finance function. On top of the technical accounting demands that come with a first-time audit, management was attempting to establish processes and controls that should have been running for years. For many of the owners we work with, that first audit is the tipping point at which the need for a real finance and accounting function stops being abstract and becomes urgent.

What we find is that owners rarely plan for the proactive alternative: building a finance function that anticipates the business's needs rather than scrambling to catch up. A finance professional embedded in your business before a tipping point hits does not just solve problems; they prevent them. They identify patterns in numbers that non-financial operators are not trained to spot. We have seen this translate into meaningful outcomes for our clients, from quantifying the real cost of slow receivables collection to building margin analysis by product or service line that shifts an owner from reacting to historical results to making forward-looking decisions with confidence. For owners who already have good instincts about their business, a strong finance partner puts precise numbers behind what they already suspect. For others, it tends to be a genuine revelation.

Finance leadership for growing businesses: bookkeeper, controller, or CFO?

One of the most common and costly mistakes we see growth-stage owners make is misunderstanding the kind of finance support they actually need. There is an enormous difference between a bookkeeper, a controller, and a CFO, and conflating them leads to either under- or over-investing at the wrong time.

• A bookkeeper records what happened. They maintain ledgers, categorize transactions, and keep the day-to-day financial record clean. This work matters, but it is not strategic.
• A controller owns the integrity of your financial statements, manages the close process, ensures compliance, and produces reporting that a bank, auditor, or buyer can rely on. When a company needs to move from cash-basis accounting to GAAP-compliant financial statements (an important step before any institutional financing or transaction), engaging controller-level expertise is usually the next step.
• A CFO operates at the strategic layer. They translate the numbers into decisions. Forecasting, cash flow modeling, capital allocation, transaction preparation, investor relations: this is the domain of a true CFO.

The insight is that you, as an owner, likely do not need all of this at once, and you may not need it all full-time. What tends to work well for growth-stage businesses is access to finance expertise that can flex with the needs of the business - providing controller-level rigor when the books need structure and CFO-level thinking when strategic decisions are on the table. What owners often find valuable is pattern recognition: the ability to identify issues early because someone on their team has seen how they play out across dozens of companies, growth cycles, and transactions. The goal is not to build the most sophisticated finance function. The goal is to match the right expertise to where your business actually is and where it is going.

How a finance function for growing businesses drives real value

There is a mental model we return to often when working with clients on this question: value is received, not given.

A finance partner's value is not measured by how impressive their credentials are or how elaborate their models look. It is measured by how much better the decisions you make with their help are compared to the decisions you would make without them. Every meaningful improvement, whether that is a more accurate forecast that prevents over-hiring, a receivables process that reduces borrowing costs, or a margin analysis that reveals which product lines are quietly dragging down profitability, translates into real, quantifiable dollars. What owners often underestimate is how small finance improvements (weekslong close acceleration, tighter add‑back discipline, earlier cash‑flow visibility) compound into six‑ and seven‑figure outcomes over time.

This also means the scope and investment should be matched carefully to the business. A $15 million services business does not need the same finance infrastructure as a $90 million manufacturing company. We are direct with our clients about what they need now, what they can defer, and what is unnecessary at their current stage. The goal is not to over-engineer; it is to give owners the clarity they need to make better decisions.

We have worked with enough entrepreneurs to know that this kind of clarity changes how owners operate. The owner who built a $50 million business did so because they were exceptional at their craft, their industry, and their relationships. What they often did not have was a partner who could take the financial complexity off their desk entirely and hand them back their most valuable resource: time. That is what the right finance partnership actually delivers: time and clarity.

Running a business to keep it vs. to sell it: the role of your finance function

In our experience, the financial decisions that make sense for long-term business operations are not always the ones that position it well for a sale. An owner focused on sustainability tends to prioritize reinvestment and operational continuity. An owner preparing to sell needs to think carefully about what a buyer will scrutinize and what gets multiplied in a transaction. Those are different financial perspectives, and leaders do well to acknowledge the differences and trade-offs.

When a buyer evaluates a business, they are often focused on adjusted EBITDA, meaning non-recurring, non-operational, and out-of-period items are generally excluded. The cleaner and more clearly documented such adjustments are, the smoother the due diligence process is likely to be. The messier they are, the more a buyer's confidence erodes, often with impacts on the deal timeline, structure, and valuation.

We have seen this distinction determine the outcome of transactions. Owners who understand it early and implement financial oversight with an eye toward how it will look to a buyer are in a fundamentally stronger negotiating position than those who try to reconstruct the story mid-transaction. We have also seen the inverse: owners who assumed their financials were clean enough, only to watch a buyer's offer shrink significantly during due diligence because the numbers told a less compelling story than the business actually warranted. A strong finance function can help you run and grow your business, while building the narrative that commands a strong offer when it is time to sell.

How to build the right finance function for growing businesses

What does proactive look like in practice? Here is how we think about it, based on where a business is in its development.

• For businesses in the earlier stages of growth: The foundation is clean, accrual-based bookkeeping, and monthly financial statements that ownership can actually read and trust. If bank financing is on the horizon, assess early whether the books are audit-ready or review-ready, because the gap between where most businesses are and where a lender needs them to be is often larger than expected. If the current finance support is primarily transactional, this is the stage where bringing in controller-level expertise, whether outsourced or through an advisory firm, starts to pay for itself. A 13-week rolling cash forecast is best practice at this stage and should be implemented early rather than treated as a later priority.
• For businesses pushing through a major growth inflection: The finance function should be producing monthly reporting that goes beyond revenue and expenses. We are talking about gross margin by product or service line, working capital trends, and KPIs tied to operational performance. If controller-level oversight is not already in place, it is needed now. An annual budgeting process with monthly benchmarking against actuals is no longer optional. This is also the stage where we encourage owners to start thinking seriously about what a transaction could look like in the next three to five years and whether their financials would hold up to scrutiny today.
• For businesses approaching or operating at scale: At this stage, the finance function should include both controller-level oversight and CFO-level strategic support, whether through a combination of internal and external resources or a fully outsourced model. The financial close process should be completed within ten business days. There should be a documented, defensible quality-of-earnings story, meaning a clear understanding of normalized EBITDA, add-backs, and recurring versus non-recurring items. Most importantly, the finance function should be actively informing strategic decisions, not just reporting on what has already happened.

The cost of letting your finance function fall behind

We work in an environment where businesses are expected to adapt quickly to new technology, shifting markets, and evolving capital conditions. The finance function is no different.

The risk is that your finance function may be fit for how you ran the business three years ago, not for how capital providers, buyers, or even your own growth ambitions will evaluate it next.

If a lender, investor, or buyer looked at your financials tomorrow, would they see a business that tells a clear, defensible story or one that requires explanation to understand? For many owners, that question is harder to answer than it should be. When it is, the implications are usually bigger than expected.

If that question gives you pause, it is worth a conversation with someone who has seen what the gap between where your financials are and where they need to be actually costs a business; in time, leverage, and outcomes.