Adviser assembling teaser and investment memorandum for a confidential buyer approach

NDA, Teaser, Investment Memorandum: The Document Chain of a Buyer Approach

June 24, 2026

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Selling a company is also an information project. The seller must disclose enough for a buyer to make a credible offer while preventing competitors, customers or the workforce from learning prematurely what is planned. This conflict is resolved not by holding back but by a staged document chain in which each step trades more information for more commitment.

Stage one: the anonymous teaser

The teaser is a one- or two-page profile that works without naming the company. It describes sector, business model, revenue scale, earnings in ranges, regional location and the reason for the sale. The aim is that a recipient can decide in two minutes whether the profile fits.

The craft lies in anonymisation. A teaser naming niche product, headcount and region so precisely that any insider identifies the company immediately defeats its purpose, while an overly vague one generates no responses. In our buyer approach we therefore often work with two versions, a narrower one for strategic addressees and a broader one for financial investors. How suitable addressees are identified in the first place is described in our article on deal sourcing.

Stage two: the NDA

Once a party expresses interest, the confidentiality agreement follows. The NDA is not a formality but the seller's most important protective instrument in the entire process. Four points decide its effectiveness: a wide definition of confidential information, extension to the interested party's advisers and affiliates, an express non-solicitation covenant for employees, and a term of at least two, better three years.

Where competitors are among the interested parties, a further layer applies. A staged access model is advisable, with particularly sensitive data such as customer lists, contribution margins per customer or formulations released only in a later phase and partly only to an external clean team. A contractual penalty increases the deterrent, even if it rarely covers actual damage in a dispute.

Stage three: the investment memorandum

After signing the NDA the interested party receives the investment memorandum, often called information memorandum or simply IM. Across thirty to seventy pages it presents the company in full: history, market and competition, business model, customer structure, organisation, sites, three to five years of financial history and a three-year plan.

The IM is both a sales document and the basis of later scrutiny, and therein lies its difficulty. It must convince yet contain nothing that falls apart in due diligence. Every figure is later reconciled with the accounts, and anyone planning too optimistically or failing to derive add-backs cleanly hands the buyer a price argument, as our article on EBITDA adjustments and add-backs shows.

What follows and why the sequence matters

The IM is followed by indicative offers, selection of parties for the second round and only then the opening of the data room. This order is not ritual. Each stage reduces the circle receiving deeper insight while increasing their commitment. Opening the data room too early means handing sensitive information to parties who have not yet named a price.

Consistency matters equally. Teaser, IM, data room and later warranty schedules must tell the same story, because contradictions are the most common trigger of mistrust and renegotiation. Thorough sale preparation therefore produces the documents in one go from one data set, and how the chain fits into the overall sequence is shown in our article on the phases of an M&A process.

FAQ

How many parties should receive a teaser? It depends on the process design. A focused approach typically uses twenty to forty carefully selected addressees, a broad auction considerably more. Selection quality beats quantity.

Should competitors be approached at all? Often yes, because they pay the highest prices. Protection comes not from exclusion but from staged information access and a robust NDA with a non-solicitation covenant.

Who prepares the investment memorandum? Usually the M&A adviser together with management and finance. Purely internal drafting tends to produce documents that look plausible internally but fail to answer an external buyer's questions.

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