Vendor contract due diligence: know what you inherit at close.
When you buy a company, you buy its vendor contracts too: the auto-renewals, the minimum commitments, the clauses that react to a change of ownership. Vendor contract due diligence is reading that stack before close, so the surprises show up in the deal model and not in the first quarter you own it.
Four things in a target's vendor contracts that become yours at close.
Most of a target's vendor agreements are routine. The work is finding the few that aren't, and they tend to fall into four groups.
Auto-renewals and notice windows
Contracts that renew on their own unless notice is given by a date in the agreement. A notice deadline that falls in the weeks around close is easy to miss while everyone is busy with the deal.
Minimum commitments and exit costs
Volume or spend floors the business has to meet whatever happens to it after the sale, and early-termination fees that put a price on consolidating vendors.
Change of control and assignment
Clauses that let a vendor terminate, renegotiate or withhold consent when ownership changes, or that stop the contract being assigned to the buyer at all. They decide whether a key contract survives the deal structure you picked.
Uncapped liability and one-sided indemnities
Exposure the target accepted without a cap, or indemnities that run only one way. After close, that exposure is yours.
M&A contract review: what to pull from each agreement.
Whoever does the reading, the same columns make the stack comparable. Pull these for every vendor agreement in the data room, then sort by date and by money.
| What to pull | Where it usually is | Why it matters to a buyer |
|---|---|---|
| Term, renewal and notice | Term and renewal clause, order form | Which contracts renew, or can still be stopped, in your first year |
| Change of control and assignment | Assignment clause, termination clause, sometimes a definitions section | Whether the contract survives the deal, and whose consent you need |
| Price and price changes | Fees, order form, renewal pricing | What the cost base does after close, and whether it can rise on its own |
| Minimum commitments | Fees, volume or purchase commitments | Spend you're locked into whatever the integration plan says |
| Termination and exit fees | Termination clause | What it costs to consolidate or replace a vendor |
| Liability and indemnities | Limitation of liability, indemnification | Exposure you inherit, and whether it's capped |
| Data and transition | Data, confidentiality, termination assistance | Whether you can move the data when you change systems |
What Sidecar returns for each contract.
Upload the agreements and each one comes back as a review: a verdict, a 0–100 risk score, the red flags and negotiation points, and these terms, each with the clause quoted from the document and its page:
- The term, the renewal date, whether it renews automatically, the notice period, the notice deadline, and the last safe day to act.
- Termination for convenience, termination for cause, and any early-termination fee.
- The contract value, payment terms, whether prices can rise (no, capped or uncapped) and the cap, unilateral-change rights, pass-through fees, and terms pulled in by a URL.
- Minimum commitments, liability on both sides, and indemnification.
- Who owns your data, your right to export it, and whether the vendor owes transition help at the end.
- The obligations each side owes, with who owes them.
- Whether the vendor can end the agreement or must consent if your company changes hands, and whether you can assign it to a buyer.
Across the whole stack, the renewal runway puts every renewal and notice deadline in date order, and the key-terms table lines up the same terms side by side. Both export to CSV, so the picture drops straight into a deal model or a diligence memo.
Change of control and assignment are read as fields of their own: whether the vendor may terminate or must consent if the company changes hands, and whether the agreement can be assigned to a buyer, each with the clause quoted. A vendor exit on a change of control, or a flat ban on assignment, raises the risk score. The key-terms table can list every vendor that can exit on a change of control. Agreements reviewed before these fields were added won't show them. For anything the deal depends on, counsel should still read the clause, and the M&A Vendor Diligence engagement calls this exposure out for each of the target's agreements.
The first pass on the stack, not the legal opinion.
Sidecar is business decision support. It reads every agreement the same way and puts the dates, the money and the risky clauses in one place, so deal counsel spends their time on the contracts that matter instead of on the ones that don't.
Counsel is still the right call for anything the deal depends on: a consent you need before close, a material contract with unusual indemnities or IP terms, anything in dispute. Sidecar isn't a law firm, and no attorney-client privilege attaches to what you upload.
When to use an attorney, and when this is enough
Advising on the deal rather than buying? Business brokers and M&A advisors can run a diligence pass for a client through the partner program.
Vendor contract due diligence questions
Is this legal due diligence?
No. It's business diligence on the vendor contracts: the dates, the money, and the clauses that carry risk, each quoted from the agreement. It is decision support, not a legal opinion. Anything the deal depends on, like a required consent, should go to counsel.
Which vendor contracts should we review first?
Start with the agreements the business can't run without, then the largest by spend, then anything with a notice deadline in the months around close. Those are where a change-of-control clause or a missed notice would cost the most.
Does Sidecar contact the target's vendors?
No. Sidecar never contacts a vendor. It reads the agreements you upload and reports what they say.
How does Sidecar handle change-of-control clauses?
Each review reads it as a field: whether the vendor may terminate or must consent if the company changes hands, quoted from the clause, and whether the agreement can be assigned to a buyer. Either one raises the risk score when it cuts against you. A contract silent on it says so. Counsel should still read any clause the deal depends on.
What happens to the documents we upload?
They're encrypted in transit and at rest, kept to your workspace, and never used to train a model. You can delete them. The security page has the detail.
Definitions and negotiation guidance here are educational business decision support, not legal advice. Consult an attorney about how any clause applies to your own agreement.
Know the vendor stack before you own it.
Send the target's agreements for a diligence pass, or start with one contract and see what a review returns. Your first review is free.