Preparing a founder-owned B2B company for sale: the 18-month runway

Most founders begin thinking seriously about a sale when something changes: an unsolicited letter from a strategic buyer, a health event, a partner who wants out, or simply a strong year that makes the number feel attainable. By that point, the window to influence the outcome is already narrower than it should be. The work that moves valuation and certainty of close happens over roughly eighteen months, and most of it is unglamorous.

What follows is the sequence we walk owners through when they have the luxury of time. It assumes a founder-owned B2B business somewhere between $5 million and $150 million in revenue, with a reasonable prospect of attracting both strategic and financial buyers.

Months 18 to 12: bring the numbers to a buyer’s standard

The most common reason a signed letter of intent loses value is that the buyer’s accountants arrive at a different EBITDA than the seller presented. In founder-owned businesses the gap is rarely the result of anything improper. It is usually a mix of cash-basis habits, inconsistent revenue recognition, inventory that has not been properly counted in years, and expenses that run through the company for convenience.

A sell-side quality of earnings report, commissioned before the business goes to market, is the most reliable way to close that gap on your own terms. It typically costs a fraction of what a single turn of re-trade would, and it changes the conversation: instead of the buyer’s accountants discovering issues, you present them, already quantified and explained. If your financial statements are not yet reviewed or audited, the year before a sale is the time to move to at least a review, and to a full audit if you expect private equity buyers whose lenders will require one.

• Move to accrual accounting and close the books every month, within a consistent number of days after month-end.
• Reconcile revenue to cash and to invoicing data, by customer, for at least the trailing 36 months.
• Document revenue recognition policies, especially for multi-element contracts, deposits and milestone billing.
• Take a physical inventory count and reconcile it to the general ledger.
• Separate personal and corporate expenses now, so the add-back schedule shrinks rather than grows.

Clean up the add-backs before someone else does

Every founder-owned company has adjustments: owner compensation above market, a family member on payroll, a one-time legal settlement, a vehicle, a relocation. Buyers accept legitimate normalizations. What they discount heavily is a long list of small, poorly documented items that together inflate EBITDA by a meaningful percentage.

The test we apply is simple: could you defend each adjustment in front of a skeptical lender with a document in hand? If an add-back depends on a verbal explanation, expect it to be haircut. If it recurs every year under a different name, it is not one-time. Removing discretionary expenses eighteen months out means the trailing twelve months a buyer underwrites will show the cleaner number without adjustment, which is always worth more than the same number with a footnote.

Customer concentration: reduce it, or explain it

Buyers look closely at the share of revenue that comes from the largest customer and from the top five or ten. As a rough rule of thumb, a single customer above 15 to 20 percent of revenue starts to draw attention, and above 30 percent it often shows up in the structure, through an earn-out, a larger escrow or a lower multiple. You cannot always diversify meaningfully in eighteen months, but you can change how concentration is perceived.

• Extend or formalize relationships with major customers through multi-year agreements, ideally with assignment provisions that survive a change of control.
• Document the history: tenure of the relationship, number of contacts across the customer’s organization, share of wallet and renewal record.
• Show that the largest accounts are served by a team, not by the founder personally.
• Direct new business development toward segments that will dilute the top account over time, and track the trend monthly.

Management depth: the founder is the risk

In most founder-owned businesses, the largest diligence issue is not on the balance sheet. It is the degree to which customer relationships, pricing decisions, supplier terms and institutional knowledge sit with one person. Strategic buyers worry about integration; private equity buyers worry about who will run the business after closing. Both will price the risk.

Eighteen months is enough time to promote or hire a second layer of management and let it demonstrate results. A capable general manager or COO who has run the business through a full year, a controller or CFO who owns the monthly close, and a sales leader who holds the key accounts will together do more for valuation than most operational initiatives. Buyers want to see that the business performed while the founder stepped back, not hear a plan for that to happen after closing.

Buyers want to see that the business performed while the founder stepped back, not hear a plan for that to happen after closing.

Months 12 to 6: legal, contractual and operational housekeeping

The second half of the runway is about removing the friction that slows confirmatory diligence and hands buyers leverage late in a process.

• Review customer and supplier contracts for change-of-control and assignment clauses, and identify which will require consent.
• Confirm ownership of intellectual property, including invention assignment agreements with employees and contractors.
• Resolve outstanding litigation, tax notices and regulatory matters where practical, or at least quantify them.
• Review employee classification, wage-and-hour compliance and benefit plan filings.
• Tidy the capitalization table, including any informal promises of equity made over the years.
• If the founder owns the real estate, put a written, market-rate lease in place.

None of these items is difficult in isolation. Discovered in the middle of a process, each becomes a negotiation, and enough of them can sour a buyer on a transaction that otherwise made sense.

Months 6 to 0: build the data room before you need it

A well-organized data room signals how the business is run. Buyers notice when documents are complete, consistently named and current; they notice faster when they are not. We recommend populating the core of the data room before marketing materials are finalized, so that the confidential information memorandum and the underlying documents tell the same story.

At a minimum, the data room should hold three years of financial statements and monthly management accounts, the quality of earnings report, revenue by customer and by product line, a current organization chart with compensation, key contracts, corporate records, insurance policies and a tax folder. Building it early also exposes gaps while there is still time to fill them.

Timing the market, and timing yourself

Founders often ask whether they should wait for a better market. Multiples do move with interest rates and credit availability, but the variables within your control usually matter more: the trajectory of the trailing twelve months, the visibility of the next twelve, and whether the business is clearly growing at the moment buyers look at it. Going to market on a flattening or declining quarter is costly in any environment.

The other timing question is personal. A sale process typically takes six to nine months from launch to close, and it is demanding. Founders who decide they are ready only after a difficult year tend to negotiate from fatigue. The best outcomes we see come from owners who started preparing while they still had the energy to run the business at full speed through the process, and who treated the eighteen months not as a delay, but as part of the sale.