Protect Client Domains.
Maximize Your Agency Margins.
High-volume list cleaning for outbound agencies managing millions of leads. Multi-user team sharing, zero seat fees, and rates scaling down to $0.0003 per contact.
Stop Surrendering Your Retainer Profits to Legacy Verifiers
When you verify 200k–1M+ contacts every month across multiple client accounts, legacy verification pricing severely damages your agency's gross margin.
Cut Verification Costs by 75%+
Verifying 500,000 leads in ZeroBounce costs $2,199. In NullBounce, the exact same volume costs just $300. That is $1,899 added straight to your agency bottom line every single month.
Zero Per-Seat License Fees
Invite your entire operations team—SDRs, media buyers, data scrapers, and VAs. Assign Admin or User permissions to share one central pool of credits without paying seat tax.
Client Data Safety & Integrity
We preserve 100% of your clients' original CSV column formatting, custom merge variables, and row sequence. Never spend hours manually realigning broken VLOOKUP sheets.
Engineered for Outbound Agency Workflows
Built to handle high-concurrency demands, complex multi-client files, and team operations.
🛡️ Zero Domain Churn for Clients
When a client's cold email domain gets blacklisted, they blame the agency. NullBounce isolates invalid mailboxes, disposable domains, and risky Catch-Alls to keep client bounce rates safely below 1.5%.
🧹 Automated Client Pre-Deduplication
When scraping databases for multiple campaigns, duplicate leads inevitably appear. NullBounce deduplicates records automatically for free—you only pay once per unique verified email address.
🔌 REST API & n8n Integration
Automate verification directly in your agency tech stack. Connect our official verified n8n node or call our high-throughput REST API (600 req/min) to clean leads instantly before queuing sequences.
⏳ Non-Expiring Balance Flexibility
Agency client volume fluctuates between quarters. Buy 500k or 1M credits at high-volume discount rates ($0.0003–$0.0006) and use them across months with zero monthly expiration deadlines.
Buy Only What You Need. Down to a Single Lead.
Have a list of 11,350 contacts? Don't pay for 25,000. In NullBounce, you buy the exact number of credits your list requires.
Your Contact Lists Are Safe With Us
Enterprise-grade privacy standards applied to every verification job.
256-Bit SSL Encryption
All file uploads, API requests, and downloads are protected by modern end-to-end TLS encryption.
Auto-Wiped in 30 Days
Uploaded lists and validation results are permanently purged from our servers after 30 days. You can also delete them manually at any time.
Zero Data Sharing
We never sell, rent, or share your proprietary lead lists with third parties. Your data is strictly yours.
No Real Emails Sent
Our engine performs technical DNS and SMTP handshakes, terminating before delivery. Your contacts will never receive test messages.
Agency Operations: Frequently Asked Questions
Clear answers about multi-user billing, list sizes, and data handling.
How do Team Accounts work for agencies?
You can invite team members via email and assign them roles (Admin, Developer or User). All team members draw from a single shared credit balance, allowing your SDRs and data ops team to clean lists without requiring access to your company credit card.
Can we verify large volumes (500k+ to millions of emails)?
Yes. You can verify millions of contacts across your agency account with volume pricing scaling down to $0.0003 per verification. For optimal processing speed and memory management, files are processed in batches of up to 100,000 contacts per upload. You can upload and run multiple lists in parallel.
Are client lists kept strictly confidential?
Yes. We act strictly as a data processor. All uploaded client files and verification reports are encrypted via 256-bit SSL, never shared or resold, and permanently purged from our servers automatically after 30 days (or manually by your team at any time).
Do unused agency credits expire if client campaigns pause?
No. Credits never expire. If an agency client pauses a retainer or your outbound volume dips between quarters, your purchased credits remain in your balance indefinitely.
Scale Your Agency's Outbound Operations
Start with 100 free credits. Invite your team, test a sample batch, and experience enterprise deliverability without the markup.
Create Agency Account (100 Free Credits) →