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Due diligence

Due Diligence Before Investing: What to Know About the People Before You Put Money In

Intelligence due diligence before an investment, acquisition or partnership: what to check about shareholders and managers, which red flags to look for, and when to check.

Modi Ben Shaul Updated 29 Oct 2026 2 min read

Accountants check the numbers. The people get checked far less. But investing in a company is first of all investing in the people who run it and own it.

Why check the people

A business plan can be excellent and the technology promising. Still, many investments fail because of something that could have been found in advance: a previous company that collapsed, an open legal proceeding, or a business tie nobody mentioned.

What to check

  • Business history: previous companies, roles, and what happened to those companies.
  • Legal proceedings: published lawsuits, judgments and insolvency proceedings.
  • Negative information in the media and on social networks.
  • Conflicts of interest: ties between the shareholders and suppliers, customers or competitors.
  • Consistency: whether the story told to investors matches the open information.

Red flags

Not every finding is a reason to walk away from a deal. But some patterns justify stopping to ask: companies that closed and reopened under a different name, a gap between the CV and the open information, partners leaving suddenly, and repeated lawsuits of the same kind.

From my research

An investor asked me to find negative information on the shareholders of a startup before deciding whether to invest. In another case, a major investor in a public company wanted to understand why the CEO had left, when the media presented the departure as a “change of direction”. The research assessment was that the company wanted to part ways with a CEO under whom the share price had dropped by tens of percent, in a way that would not unsettle investors.

When to check

Before signing, not after. A background check done early lets you ask the right questions in the negotiation, and sometimes change the terms.

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FAQ

Questions on this topic

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All FAQs
What is the difference between financial and intelligence due diligence?

Financial due diligence checks the numbers and documents the company presents. Intelligence due diligence checks what lies outside them: the people, the ties and the history, from open sources.

Is it also suitable for a partnership or an acquisition?

Yes. Any deal in which you rely on other people justifies checking who they are.

Do the people being checked know about it?

The check relies on open sources only and does not require contacting them.

Glossary

Business intelligence glossary

Core concepts, in brief

Due diligence

Investment

A check before an investment, acquisition or partnership. On the intelligence side it focuses on people: who the shareholders are, what their business history is, and whether there is negative information you should know in advance.

Pre-investment background checks

Conflict of interest

Integrity

When a decision maker has a personal, business or family tie to one of the parties. Open-source research can reveal past work together, family ties and social connections.

Conflict-of-interest checks

Open-source intelligence

OSINT · Core concept

Collecting and analyzing information that has been published openly and legally: media, social networks, websites and official publications. The value is never in a single piece of information, but in cross-checking many of them.

What is OSINT

Intelligence picture

Deliverable

The output of the research: a structured summary of what was found, what it means and what I recommend. Built so you can make a decision on it.

How an intelligence picture is built

Asset tracing

Recovery

Gathering open-source information on the assets of a company or a person, for example after a judgment or a bankruptcy, to check whether assets were moved to another entity.

Asset tracing services
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