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Preparing for a potential IPO: 10 recommendations for the 18 months before listing

Readiness, not hype: ten things a company should have settled before bankers and underwriter's counsel start asking, and where the diligence data room fits.

A potential IPO changes how a company has to keep its records long before it changes anything else. Investors will read the registration statement; regulators will comment on it; the underwriters will be legally exposed if it is wrong. Every one of those parties wants evidence, and evidence has to exist before it can be shared.

The ten recommendations below follow the order in which the work usually happens. They are written for a growth company in the United States filing with the Securities and Exchange Commission, but most apply to any market with a prospectus regime.

The 18 months before a listing, in six blocks

Months 18 to 15
1Audit ready
  • Two or three years of audited statements
  • Revenue recognition reviewed
  • Auditor independence confirmed
Months 15 to 12
2Board and governance
  • Independent directors recruited
  • Audit committee chartered
  • Policies drafted
Months 12 to 9
3Controls
  • Control gaps mapped
  • Close shortened
  • Systems access cleaned up
Months 9 to 6
4Equity and legal cleanup
  • Cap table reconciled
  • Contracts and IP confirmed
  • Litigation summarized
Months 6 to 3
5Diligence room opens
  • Underwriter and counsel requests
  • Q&A tracked
  • Drafting support for the filing
Months 3 to 0
6Filing and roadshow
  • Comment letters answered
  • Final numbers refreshed
  • Room archived
The data room is block five, but it is only fast if blocks one to four left clean files behind. Most diligence delays trace back to the cap table and contracts.
dataroomreview.org
Months before the planned listing date. A typical sequence for a company preparing a first registration statement; timings vary by market, size and readiness.

1. When should IPO preparation actually start?

Earlier than the board expects. Eighteen months before the target window is a sensible starting point for a company that has never been audited to public-company standards. Companies with a strong finance team and clean audits can sometimes compress this to nine or twelve months.

A useful internal test: if the auditors were asked today to sign off on the last two years, would they need to change anything? If the answer is “probably”, the clock has already started.

2. Are your financial statements audit-ready for a public filing?

Public filings require financial statements audited under the standards of the Public Company Accounting Oversight Board, by a firm registered with it. A private-company audit is a good start but not the same thing. Revenue recognition, stock compensation and segment reporting are the areas most often reworked.

AreaWhat private companies often haveWhat a public filing needs
Audit standardPrivate-company auditPCAOB-standard audit by a registered firm
Years presentedLatest year onlyTwo years for an emerging growth company, usually three otherwise
Interim periodsManagement accountsReviewed quarterly statements
Revenue policyApplied informallyDocumented and consistent across periods
Close speedSeveral weeksFast enough to meet quarterly deadlines

3. Does the board meet public-company expectations?

Exchanges require a majority of independent directors on the board and fully independent audit, compensation and nominating committees, with phase-in periods for newly listed companies. Recruiting experienced independent directors, particularly an audit committee chair with financial expertise, can take six months on its own.

Write the committee charters, the code of conduct and the insider trading policy at the same time. Underwriters will ask for drafts, and the board needs time to adopt them properly.

4. Are internal controls documented and working?

Public companies certify their internal control over financial reporting. Newly public companies get a transition period, and emerging growth companies are exempt from the auditor attestation for several years, but management still has to stand behind the controls from the start.

Start by mapping where numbers come from: which system, who enters them, who reviews them. Gaps usually sit in access management (too many people with admin rights in the finance system) and in the close process (manual spreadsheet steps nobody reviews).

Practical tip

Keep evidence of each control as you go: sign-offs, reconciliations, access reviews. A folder of dated evidence is far easier to share with auditors and underwriter’s counsel than a reconstruction done under deadline.

Every share, option, warrant, SAFE and convertible note has to tie back to a signed instrument and a board approval. Discrepancies between the cap table spreadsheet and the legal record are one of the most common causes of late-stage delays, because fixing them can require consents from former employees and early investors.

Reconcile now. Collect every grant letter, exercise notice and transfer document into one place, and have counsel confirm the totals.

6. Can you produce every material contract, signed?

Diligence teams want the executed version, with all amendments, of every contract that matters: top customers, key suppliers, debt facilities, leases, licenses, and anything with change-of-control or exclusivity terms. “We think it is in someone’s inbox” is not an answer that survives a diligence call.

12-18months of runway we suggest for a first-time filer
3most common delay sources: financials, cap table, contracts
6time blocks in the readiness plan above

Editorial guidance based on published listing requirements and typical timelines; individual cases vary.

7. Have IP ownership and open litigation been confirmed?

Investors need to know the company owns what it sells. Confirm invention assignment agreements for every founder, employee and contractor who touched core products, and register key trademarks in the markets you operate in. Summarize pending or threatened litigation with counsel’s assessment, because it will be disclosed.

8. How should you prepare for underwriter diligence?

Bankers and their counsel run two kinds of diligence. Business diligence covers the model, the market and management. Legal diligence works through corporate records, contracts, regulatory matters and anything that could make the filing misleading. Both arrive as long request lists, and both expect fast, complete answers.

This is where a data room earns its cost. A room indexed to the request list, with each party in its own permission group and a Q&A module that logs every question and answer, gives everyone one place to work and leaves a record of what was provided and when. That record matters later: it supports the underwriters’ due diligence defense.

Room capabilityWhy it matters in an IPOHow to check it in a trial
Granular permission groupsBanks, auditors and several law firms see different scopesCreate three groups and test each as a guest
Structured Q&AQuestions from many parties stay organized and loggedSubmit and route a test question
Audit trail exportEvidence of what was provided, and whenExport a log after a test session
Watermarking and view-onlyDraft financials and forecasts are highly sensitiveOpen a file as a guest and try to print
Strong certificationsBanks’ own security reviews ask for themRequest the SOC 2 report or ISO 27001 certificate

Some platforms are built specifically around capital markets work. Our Venue by DFIN review and Datasite review cover two that bankers often know, and our ranking of the best data room software for an IPO compares the wider field on the criteria above.

9. What changes in the last three months?

The draft registration statement goes back and forth between the company, counsel, auditors and, once filed, the regulator’s reviewers. Numbers are refreshed each quarter, comment letters are answered, and the roadshow presentation is built. The data room stays open and active, usually with new folders for comment responses and bring-down diligence.

Plan for the archive. When the deal closes, export the full room with its audit log and keep it under your records policy. Check before signing how long the provider keeps the archive and what an export costs.

10. Should you keep the option of a different exit open?

Many companies that prepare for an IPO end up selling instead, sometimes in a dual-track process run alongside the filing. The good news is that readiness work is not wasted: an audited, well-governed company with clean records and an organized data room is exactly what a strategic buyer or private equity firm wants to see too. Our guide to the best data room software for M&A covers the sale side.

Comparing rooms for an IPO or dual-track process?

See how the leading providers score on security, workflow and pricing clarity.

See the IPO ranking

Frequently asked questions

How long does it take to prepare for an IPO?

Usually 12 to 18 months for a company that has not yet been audited to public-company standards. Companies with strong finance teams and clean audits can sometimes prepare in nine to twelve months.

What is the hardest part of IPO readiness?

For most companies it is the financial side: audits to public-company standards, a faster close and documented controls. Cap table reconciliation and contract cleanup are the next most common sources of delay.

Do you need a virtual data room for an IPO?

In practice, yes. Underwriters, their counsel, company counsel and auditors all run diligence at the same time, and a data room keeps their access separate, logs every question and answer, and records what was provided.

What is an emerging growth company?

A US category for companies below a revenue threshold that can use scaled disclosure, including two years of audited financial statements instead of three and a temporary exemption from the auditor attestation of internal controls. Check the current thresholds with counsel.

What should a company do with its data room after listing?

Export the full room with its audit log and keep it under the company's records retention policy. The record of what was disclosed during diligence can matter long after the listing.

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