anVendor vs TheirStack

Both products can turn a competitor into a lead list. The difference is what qualifies a lead: TheirStack reads job advertisements, while anVendor looks for current evidence of the subscription itself and adds estimated spend. One is a signal about hiring, the other about customers paying now.

What TheirStack does well

A very large corpus of job postings, and a genuinely useful signal inside it. A company writing a tool into a requirements list is telling you something real about where that team is heading, and job-ad data has a property nothing else here matches: it is forward-looking. A surge of postings naming a technology is an adoption signal months before the rollout. Read the other way, a company hiring for the thing you sell while still advertising your competitor's tool is a migration you can time.

Where it goes quiet

Intent is not billing. A requirements list can be aspirational, copied from an older posting, written by a recruiter working from a template, or naming the system the new hire is expected to migrate away from. It also skews hard: toward engineering roles, toward companies large enough to hire continuously, and toward tools that are worth naming in a job ad at all — which quietly excludes most of the services a company actually pays for. Nobody advertises for experience with a document suite.

And there is no price. Job-ad data publishes no spend figure, so it can tell you a company is interested and never tell you what the deal is worth.

Side by side

Which to use when

• Use TheirStack when timing matters more than certainty — catching a company as it staffs up around a stack, or spotting a migration while it is still a plan.
• Use anVendor when you need to know who is paying now, in categories nobody writes job ads about, with an estimate of what it costs them.

This is not either/or, and the honest answer for most teams is both. They read different evidence, so they disagree in useful ways: a company one of them is silent about is a company the other may well have. What matters is knowing which lens you are looking through when you write the email.

Frequently asked questions

Is job-ad data less accurate than subscription data?

It is accurate about a different thing. A job ad is reliable evidence that someone wrote a tool's name in a requirements list, and that is a real signal — it is simply not evidence that the company holds an account. Treat it as intent and it will serve you well; treat it as billing and it will not.

Does anVendor show hiring signals?

No. It does not read job advertisements at all. If hiring intent is what you need, that is a reason to use both rather than to pick one.

What does anVendor cost?

Discovering companies is unlimited and free on every plan. Credits pay for answers about a particular company: 0.25 to reveal one customer and its estimated spend, 1 to analyze all of a company's subscriptions. Free is 3 credits per 30 days; paid plans range from 30 credits for $99 a month to 400 for $999.