How do I choose a 409A valuation provider?

Most founders shop for a 409A provider exactly once, with no way to judge quality until an auditor is picking the report apart two years later. Here's how to screen before that happens.

The three provider archetypes:

• The bargain template mill. Rock-bottom price, suspiciously fast turnaround, and a report that looks like every other report they've ever produced with your company name pasted in. These are the valuations that get torn up in diligence — and re-doing a 409A after the fact is far more expensive than doing it right.
• The Big Four firm. Genuinely rigorous, and priced like it. You'll pay a premium for the letterhead, and the actual analysis is often done by a junior associate you'll never meet.
• The specialist. A firm that does private-company equity valuation as its core business. This is where most startups should be looking — but "specialist" is a label anyone can claim, so you still have to screen.

Screen on outcomes, not marketing. Ask every provider:

• What's your audit-acceptance track record? Have their reports been through Big Four audits and pre-IPO diligence without being rejected or redone? Ask for specifics, not reassurance.
• Will the methodology be shown, or black-boxed? A defensible report walks through the actual analysis — the backsolve off your last round, the OPM allocation, the assumptions behind each input. If a provider can't or won't show the work, an auditor won't accept it either.
• Is there a named human reviewer on every report? Someone puts their name on the analysis and can defend it later. "Our team reviews everything" is not an answer.
• Can you handle my actual cap table? SAFEs, convertible notes, multiple preferred classes, option pools mid-refresh. If they've only ever valued clean single-class structures, your edge cases become their learning experience.
• Is audit support included? When your auditor has questions — and they will — does the provider get on the call and defend the report, or does that cost extra (or worse, is it not offered at all)?

What about credentials? Letters after a name are neither necessary nor sufficient — the report's track record under scrutiny is the test.

Red flags: no named appraiser on the report, turnaround measured in hours with no human review step, audit support sold as an add-on, and any pitch that leads with price instead of defensibility.

Rule of thumb: a 409A report is only worth what it survives. Choose the provider whose reports have already survived the scrutiny yours will face.