How to Audit a B2B Data Provider Before You Buy: 10 Questions That Expose Weak Data

Most Teams Audit the Price. Almost Nobody Audits the Data

When companies evaluate a B2B data provider, the conversation usually covers three things: how many records, how much per record, and how fast can we get it. Accuracy comes up only after the campaign has already bounced. That is backwards. Bad data does not just waste the money you paid for it. It burns your sender domain, wastes your SDR hours, and poisons your CRM for months. A 30 minute audit before you sign catches most of this. Here are the 10 questions to ask, grouped into three areas: sourcing, accuracy, and commercial terms.

Sourcing Questions

• 1. Where exactly does this data come from? A serious provider can explain their sourcing method in plain language: web scraping, job postings, case studies, partnerships, human research. If the answer is vague, like “proprietary sources,” assume they are reselling someone else’s database.

• 2. How do you detect technographic signals? Install-base data can be observed (seen in job posts, case studies, site code) or modeled (guessed from company size and industry). Ask which one you are buying. Modeled data looks impressive in volume and falls apart in outreach.

• 3. What percentage of records are verified versus inferred? Every provider mixes both. The honest ones tell you the split. The weak ones pretend everything is verified.

Accuracy Questions

• 4. When was each record last verified, and can I see the timestamp? B2B contact data decays at roughly 2% per month. A record verified 14 months ago is a coin flip. If the provider cannot show verification dates per record, they do not track them.

• 5. What is your email verification process? “Verified” should mean tested against the mail server, not just pattern-matched to firstname.lastname@company.com. Ask them to describe the process. Listen for whether it happens at delivery time or happened once, years ago.

• 6. What is your refresh cycle? Quarterly refresh means up to 6% of the file is already dead on the day you receive it. Ask when the file you are buying was last touched, not when the database was.

• 7. Can I get a sample scoped to my actual ICP? A generic sample proves nothing. Ask for 25 to 50 records matching your real target: your competitor’s install base, your region, your company size band. Then test it before you buy anything.

Commercial Questions

• 8. What is your accuracy guarantee, in numbers? “High quality” is marketing. “95% deliverability or we replace the records” is a contract term. If they will not put a number in writing, they do not believe their own data.

• 9. What happens when a record is wrong? Replacement, credit, or refund. Get the policy before you pay, because after you pay, the answer changes.

• 10. How is this data compliant with GDPR and CCPA? Ask for the lawful basis they rely on and what happens if a contact requests deletion. A provider who cannot answer this is transferring legal risk to you.

This audit is also why data pricing varies so much. Cheap records are cheap because nobody verified them. If you want the deeper background on why so much install-base data fails these questions, read [why most technographic data is wrong]. And if you are wondering whether the data already in your CRM would pass this audit, start with [5 signs your CRM data needs a refresh].

How Revnity Marketing Answers These Questions

Revnity Marketing built its process around passing exactly this audit. Every file ships with verification timestamps, every email is tested at delivery, samples are scoped to your real ICP and your competitor’s install base, and the accuracy guarantee is written into the agreement, not implied in a slide. If you are evaluating providers right now, send us the same 10 questions. We will answer all of them in writing.