Investor Due Diligence: What Investors Check, How to Prepare

Investor due diligence is the examination an investor runs on a company or a fund between first interest and the wire. It tests whether the numbers, the ownership, the contracts and the people match what was presented, and its findings set the price, the structure and whether the round closes.

On a company raise the CEO and CFO answer the investor's request list; on a fund close the GP answers the LP's questionnaire.

What is investor due diligence, and what does it decide?

A finding in diligence moves one of three things: the price, the structure or the timetable. A gap in the cap table, a customer that carries half the revenue or a deck figure the accounts don't support turns into a lower valuation, a protective term in the investment agreement, an added closing condition or a longer wait, and one the company can't explain can end the round.

What the investor sees depends on the NDA. Before it's signed, the investor works from the pitch deck, summary financials and the management team's answers on calls; after it, the data room, the shared folder of documents the investor reviews, opens.

The order holds for a growth round, a pre-IPO round or a fund close. A fund close tests the track record and the fund terms where a growth round tests the accounts and the customer contracts.

What does each type of investor test in due diligence?

Each type of investor answers to a different committee, so each tests a different part of the company first.

• Venture and growth equity funds weigh the team, the market and the growth model first. A partner leads the work with an associate, and outside reports are rare before a term sheet.

• Private equity firms weigh the quality of earnings, meaning how much reported profit repeats, then net debt and cash conversion. Accountants and counsel are hired to test them once terms are agreed.

• Family offices weigh the owners, the governance and the exit path first. One principal or a trusted adviser decides.

• Strategic investors weigh the fit with their own products and customers first, and corporate development consults the operating managers.

A private placement agent builds the investor list by type, brings those investors to the table and acts for the raising side only.

Which workstreams do investors examine, and what do they ask for?

Due diligence for investors splits into six workstreams.

4 columns. Drag the table sideways; the first column stays put.

Each request has a place in the data room, and the guide to the virtual data room covers how to set one up.

Give every row one named owner before the room opens, because a request with no owner is the one still open when the investor's team asks for a status call.

How do you prepare financials before investor due diligence?

Make three sets of numbers agree before the room opens: the historical statements, the monthly management accounts and the forecast. The investor's finance team will compare all three, so the company runs that comparison first.

Six steps, in order:

1. Reconcile the historical statements to bank records and tax filings.

2. Roll the monthly management accounts up to the annual figures, with the same categories.

3. Strip one-off and unusual items out of reported profit, and keep a note of each.

4. Set the working capital level and list the borrowings that make up net debt.

5. Show revenue by customer, so concentration is visible before an investor asks.

6. Build the forecast from the latest actuals, with each driver named and each assumption tied to a result the company has already delivered.

KPMG's guide to sell-side preparedness lists a quality of earnings analysis and a working capital review among the usual contents of a vendor due diligence report, and says the report gives a third-party validation of the financials.

A seller commissions that report in a sell-side M&A process; a company raising capital can run the same two tests on its own numbers.

In the illustrative example below, a company reports EBITDA of $5.0M. Adding back a one-off legal cost of $0.4M, removing $0.6M of non-recurring revenue and moving $0.3M of costs into the right period leaves $4.5M.

The $0.5M gap is a tenth of the reported figure; priced on a multiple of EBITDA, the valuation falls by the same tenth.

The mismatch that costs most is a deck figure the accounts don't support. Tie every number in the deck to a source in the data room before the NDA is signed, and drop the figure that can't be tied.

What do FINRA and the SEC expect checked in a private placement?

FINRA expects a broker-dealer in a Regulation D offering to conduct "a reasonable investigation concerning" the issuer and the securities it recommends. Regulatory Notice 10-22 sets the limit on what a broker-dealer may take on trust.

“may not rely blindly upon the issuer for information concerning a company”

FINRARegulatory Notice 10-22, on the broker-dealer's duty

For the company, that duty arrives as questions. Answer the broker-dealer's requests in full, because withholding can be read as a warning sign.

Rule 506(d) adds a check on the people and firms involved in the offering, a placement agent among them. The SEC's staff interpretations say an issuer must determine whether it's subject to bad actor disqualification "any time they are offering or selling securities in reliance on Rule 506", and may reasonably rely on a covered person's "undertaking in a questionnaire or certification". In practice the company collects a bad actor questionnaire from each covered person.

spectup's U.S.-related activities are conducted under SEC Rule 15a-6 through a chaperoning arrangement with a U.S. registered broker-dealer that is a FINRA and SIPC member.

spectup drafts the private placement memorandum and passes the sections on law and regulation to securities counsel.

How do LPs run due diligence on a fund manager?

Fewer private equity funds are closing, so an LP's diligence on a manager works as a filter. In 2025 the number of funds closed dropped 18% across private equity and 23% for buyout, Bain reports, a fourth annual decline in a row, while LPs concentrate on the largest platforms.

From the desk. spectup's record since 2022: $760M+ advised, raised or placed.

We asked an institutional LP how a manager gets a first meeting today. His answers: no new manager relationships, re-ups if anything; about one new fund deck a month; diligence of a month or so; and first meetings go to "a relationship with someone I trust".

Buyout fund-raising dropped 16% to $395 billion in 2025, and the funds closing the fastest tended to be established funds.

In that market an LP examines a fund manager area by area. ILPA publishes a due diligence questionnaire to "standardize the key areas of inquiry posed by investors".

A common frame for those areas is the four Ps:

• People: who makes the decisions, and how long the team has worked together.

• Performance: how the track record was made, and what has been realised.

• Philosophy: whether the strategy was applied the same way across deals, in strong markets and in weak ones.

• Process: how deals are sourced, approved and monitored.

Which red flags in investor due diligence slow an investor down or end the process?

A company can clear withheld information, a deck that differs from the accounts, related-party items and, once the missing signatures are in, cap table gaps. Customer concentration and key-person dependence it can only reduce, and undisclosed liabilities fall between the two: disclosure removes the surprise and the investor still prices the liability.

The findings that slow an investor are mostly inconsistencies, and the ones that end a process are mostly information the company withholds.

FINRA's notice says an issuer's "refusal to provide a broker-dealer with information that is necessary" could itself constitute a red flag, and it's a flag the company controls completely. The table adds an eighth flag, a story that shifts.

3 columns. Drag the table sideways; the first column stays put.

How do you run due diligence on investors?

Due diligence on investors starts with two facts: who at the investor does the work, and who has to sponsor the deal inside the firm. A call that ends without both leaves the company guessing at the next step.

Booked calls come out of investor outreach, and before them spectup sends the CEO a brief.

Five questions to put to any investor:

1. Who runs diligence on your side, and who else signs off?

2. Which partner sponsors the deal inside the firm?

3. Which portfolio companies can we speak to, including one that went through a hard year?

4. Which steps remain after diligence, and when does the committee meet?

5. What do you need from us to reach a term sheet?

How spectup runs investor due diligence on a raise

spectup acts for the company or fund that's raising and brings the investors to the table; it doesn't represent an investor. The data room belongs to the offering materials spectup prepares, with the private placement memorandum, the investor deck and the financial model.

Diligence and close is the last of the five stages of a placement and the part of the investor due diligence process that ends in signed subscription documents. In that stage spectup runs the Q and A, prepares the meetings, prepares the client for the term negotiation and handles the signing; the terms themselves are negotiated by the company and its counsel.

spectup's in-house signal engine tracks 80+ triggers to show which investors are allocating now, and data from its closed transactions shows who allocates to what.

Investor due diligence checklist: what to settle before the first call

Five items to settle before the first investor call:

• A named data room owner, usually the CFO, who logs every request and assigns it to the owner in the workstream table.

• A decision on what the investor sees before the NDA, the deck and summary financials, and what waits for the data room.

• A bad actor questionnaire from each covered person, if the raise relies on Rule 506.

• A one-page red-flag memo built from the table in the red flags chapter: each weak point the company already knows about, with its answer.

• A scoping call with spectup. Bring your red-flag memo and your data room owner, and settle the order in which investors are approached.