Trusted by revenue teams at — hover any logo to read their story
Everything you need to reach the right buyer.
See each product working — verified data, live signals, and answers where you already work.
Email Finder
Verified work emails, sourced and validated in real time across 250M+ professional profiles.
- ✓ SMTP + MX handshake validated
- ✓ Catch-all & role-account flagged
- ✓ Credit auto-refunded on any bounce
Buying Signals
Intent from hiring, leadership, funding, and tech adoption.
New CMO from Google1w
Migrated to AWS1w
Adopted Snowflake3dCompany Intelligence
AI account briefings from websites, funding, and executive moves — in seconds.
Data Enrichment
Upload a CSV, connect your CRM, or call the API — we fill in verified emails, phones, titles and firmographics.
Tech Stack Filter
Target companies by the exact tech they run — the sharpest ICP signal there is.
Salesforce
HubSpotAWS
Stripe
SegmentDirect Dials
Verified mobile and direct office numbers — every one re-validated within 90 days.
Burg AI — inside your AI assistant
Ask anything about any contact or company. Structured intelligence from 250M+ profiles, buying signals, and firmographics — through the MCP connector, right inside Claude & ChatGPT.
Claude
ChatGPTMCP connectorComplete account intelligence before every conversation
Sendburg's AI reads company websites, job boards, news, and LinkedIn — then gives your rep a clean briefing. No research tab. No wasted 20 minutes before a discovery call.
Identify accounts in active buying cycles — before they contact you
Most outreach fails because reps call too early — or too late. Buying signals tell you the exact moment a company is ready to buy, so you reach out when it actually converts.
Explore buying signalsIndustry-leading coverage. Every price point.
Comprehensive B2B intelligence at a fraction of legacy platform costs.
| Feature | Sendburg You are here | Apollo.io | ZoomInfo | Lusha |
|---|---|---|---|---|
| Free credits / month | 10,000 | 50 | None | 5 |
| AI company summaries | — | — | — | |
| Buying signal alerts | — | |||
| Tech stack filter | — | |||
| MCP / AI connectors | — | — | — | |
| Direct dials | ||||
| Cheapest paid plan | $35/mo | $49/mo | $15K+/yr | $39/mo |
| Annual contract | No | Yes | Yes | No |
| Cancel anytime | — | — |
Try Sendburg free — no signup required
Verify an email, find a work address, or look up a company right now. See the data quality for yourself, then create a free account for 10,000 verified contacts a month.
Email Verifier
Check if any email is valid — instantly, no signup.
Open tool →Email Finder
Find a verified work email from a name and company.
Open tool →Company Lookup
Pull firmographics and intelligence on any company.
Open tool →Email Permutator
Generate every likely email format for a contact.
Open tool →How sales and marketing teams use Sendburg
Three common ways teams put Sendburg to work — on the free plan or a paid one.
Build a target list in minutes
Filter by job title, seniority, industry, company size and location, then unlock work emails that are checked live before you pay for them. Export to CSV or send the list to your outreach tool.
Walk into every call prepared
Open any company to see an AI briefing, the technologies it uses, recent funding and buying signals, plus the decision makers and who recently changed jobs.
Keep your CRM data fresh
Upload a CSV to fill in missing emails, phones, titles and company details, get alerts when your contacts change jobs, and connect Sendburg to your stack through the API or your AI assistant.
Frequently asked questions
Everything you need to know before getting started
What is Sendburg?
Sendburg is a B2B contact database and intelligence platform with 250M+ verified contacts, AI company briefings, real-time buying signals, and tech stack filters. Teams use Sendburg to identify, research, and reach their ideal buyers faster.
Is Sendburg free?
Yes. Sendburg has a free plan with 10,000 verified contact credits every month — no credit card required. Paid plans start at $35/month for 10,000 credits.
How is Sendburg different from ZoomInfo or Apollo?
Sendburg includes AI account briefings and real-time buying signals that ZoomInfo and Apollo charge extra for or don't offer. Sendburg also has no annual contract, a generous free plan, and stronger non-US coverage. Paid plans start at $35/month vs Apollo's $49/month and ZoomInfo's $10,000+/year.
What are buying signals?
Buying signals are real-time events indicating a company is in a buying cycle — a new funding round (budget to spend), leadership change (new executive brings new tools), hiring activity (growth signal), or technology adoption change. Sendburg surfaces these so you reach companies most likely to buy now.
How accurate is the contact data?
Sendburg uses multi-source verification and automatically refunds credits on any undeliverable email. Our email bounce rate is under 5% — significantly lower than industry averages of 15–30% for unverified databases.
Does Sendburg integrate with my CRM?
Yes. Sendburg integrates natively with Salesforce, HubSpot, Pipedrive, and all major outreach tools including Outreach, Salesloft, Instantly, and Lemlist.