How to Do Due Diligence on a Company for Free
You can do a real background check on almost any company without spending a cent, because the records that matter are published by the agencies that hold them. The trick isn't access — it's knowing which record answers which question, and reading each one without fooling yourself. Here's the order a professional works in, the free source for each step, and how a free due diligence tool collapses the whole thing into one search.
1. Confirm the company is who it says it is
Start with identity, because everything downstream keys off the correct legal entity — not the brand on the homepage. For a U.S. public company, the SEC's EDGAR gives you the exact registrant, its filings and its current standing for free. For a private company you're usually in state Secretary-of-State records, which are free but slower. Get the legal name and any parent or subsidiaries straight before you go further; our corporate due diligence module pulls this from EDGAR automatically.
2. Read a few years of financials
One good quarter proves nothing. Public companies file audited numbers in their 10-K and quarterly 10-Q, and those same documents include the risk factors management is legally required to disclose — often the most revealing page in the filing. Pull three or four years so you're reading a trend, not a snapshot. The financial module charts the multi-year figures and links every source filing.
3. Verify the intellectual property
If what you're evaluating is a technology or a brand, confirm the company actually owns it. Patents and trademarks are searchable free at the USPTO, and the quiet deal-killer is chain of title — an assignment that was never recorded, or a registered owner whose name doesn't match the seller. The full set of traps is in our IP due diligence checklist.
4. Check litigation and restricted-party lists
Search U.S. federal dockets for suits, judgments and bankruptcies — the free RECAP archive at CourtListener mirrors much of PACER, and each case's "nature of suit" code tells you at a glance whether it's routine. Then screen the company and its principals against government watchlists: OFAC's sanctions lists, Commerce's export lists, State's debarments. In regulated industries this step isn't optional, and the rules can bite even for accidental violations — our sanctions screening guide explains what each list means.
5. Scan adverse media, then save a report
Some of the most important facts — an investigation, a fine, a founder's lawsuit — never appear in an official filing. Adverse-media screening looks for them in the news, bounded by date and tied back to real sources so one blog post doesn't outweigh a Reuters story. Finish by exporting everything into a single document you can share.
Doing it even faster
If reading filings by hand isn't how you want to spend an afternoon, free AI due diligence does the fetching and drafting for you from these same sources. Either way, remember what a free check is and isn't: public records are only as current as their last update, some sources throttle automated access, and a watchlist match is a lead to confirm, not a verdict. It's a fast, well-sourced first pass that shows you where to dig — and, to be clear, not legal advice. For the definitions behind each step, see what due diligence is.