GrowtechesA bad list does more than waste money — it damages your sending domain, wastes your sales team’s time and can create compliance risk. Ask any data provider these questions before you buy.
1. Where does the data come from?
Good vendors combine multiple sources — for example Apollo.io, LinkedIn Sales Navigator, ZoomInfo and enrichment APIs — and cross-validate records. Be wary of anyone who cannot explain their sources.
2. How are emails verified?
Ask for the verification method and the guaranteed deliverability rate. Industry-standard verification checks syntax, domain, MX records and mailbox existence. We guarantee 95%+ deliverability on verified B2B emails.
3. How fresh is the data?
People change jobs constantly. Every record should carry a last_updated timestamp, and the vendor should refresh data before delivery rather than selling an old static file.
4. Can you filter precisely?
You should be able to filter by industry, company size, revenue, geography, job title, seniority, department and technology stack. The tighter the filter, the better your campaign performance.
5. Will they share a free sample?
Always test before buying. A reputable vendor will send a sample (we send 50 verified records within 24 hours) so you can check accuracy against LinkedIn yourself.
6. What formats and integrations are available?
CSV and XLSX are standard; MySQL exports, CRM imports and API delivery are useful at volume.
7. How do they handle compliance?
Use B2B data for relevant, professional outreach, include a clear opt-out in every email, and honour unsubscribe requests immediately. Check the regulations that apply in each country you target.
The bottom line
Price per record matters far less than accuracy. A smaller, verified, well-targeted list will outperform a huge cheap one every time. Request a free data sample to see the difference.
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