GTM Hub
What is NeverBounce?
NeverBounce is a real-time email verification and list cleaning service owned by ZoomInfo (acquired in 2018). Founded in 2014 in Cleveland, OH. It serves 150,000+ clients, has cleaned 1 billion+ emails, and offers 80+ integrations for bulk list cleaning, real-time verification at point-of-entry, and automated CRM syncing.
NeverBounce news
Trustpilot rating 1.9/5 with high dissatisfaction
32 reviews, 66% gave 1 star. Main complaints: credit expiry applied retroactively, higher-than-expected bounce rates, hard-to-reach support, unresolved refund requests.
Pricing article: $3,200 annual cost for 100k-list quarterly re-verification
Pay-as-you-go $800 for single 100k clean; quarterly re-verification over 12 months requires four passes totaling $3,200. Typical B2B lists are 54% valid, 27.5% catch-all/unknown.
Ranked 3rd in bounce rate test among 6 email verifiers
Against Apollo list (212 catch-all, 159 behind SEG): 0.56% bounce rate, but rejected 28.9% of list. Catch-all handling routes to 'unknown' and stops.
Key features
Bulk Email List Cleaning
Upload lists of any size or connect integrations for seamless cleaning with up to 99.9% deliverability confidence
Real-Time Email Verification API
Verify and validate customer emails instantly at point of entry (lead capture, registration forms, signup flows, POS terminals, CMS)
Automated List Cleaning (Sync)
Connect CRM or email provider for continuous automated cleaning 24/7; duplicates not charged on Growth plan
Automatic Typo Correction
Fixes obvious email typos (e.g., gmai → gmail)
Company Name Enrichment
Appends company name behind each email
GTM Guard
Gives AI agents clean inputs and instructions
Multiple Connection Methods
Dashboard, REST API (libraries for cURL, NodeJS, PHP, Python, Ruby, Go, Java, .NET), and JavaScript widget
80+ Integrations
Native connectors for HubSpot, Salesforce, Mailchimp, Marketo, Zapier, n8n, and many others
NeverBounce pricing
Pay-as-you-go credits expire 12 months after purchase. Growth plan is most popular. Volume discounts available on pay-as-you-go up to $0.002 per credit at 2 million+ credits.
| Plan | Price | What's included |
|---|---|---|
| Pay as You Go | $8 per 1,000 credits ($0.008 per email); volume discounts down to $0.002 per credit at 2,000,000 credits | Clean, working emails verified in real-time; typo fixes; company name enrichment; GTM Guard; Zapier/n8n/HubSpot integration; clean up to 10 lists at once. Best for small campaigns, one-time cleanups, and testing. Credits expire 12 months after purchase. |
| Growth | $49/month | Up to 10,000 emails per month; 200 AI-picked leads per month; AI scoring; CRM auto-sync (no manual uploads, duplicates not charged); unlimited parallel list cleaning; everything in Pay as You Go. Most popular plan. |
| Enterprise | Custom | Unlimited usage across teams and workflows; advanced security & compliance; dedicated account manager; custom GTM Guard configuration; custom rules for deduplication, scoring, ownership. Typically for 250,000+ emails per month. |
Pros & cons
Pros
- + 80+ integrations including Zapier and n8n for broad workflow coverage
- + Real-time verification with automatic typo correction and company enrichment
- + Free first list verification with no credit card required
- + Growth plan auto-syncs CRM with duplicates not charged
- + Backed by ZoomInfo (relevant for existing ZoomInfo users)
- + Multiple connection methods (dashboard, API, JavaScript widget)
- + Fast turnaround (clean 10k emails in ~3 minutes)
Cons
- − Expensive at small volume: $0.008 per email roughly 2-4x competitor pricing at comparable volumes
- − Pay-as-you-go credits expire 12 months after purchase (competitors' credits do not expire)
- − Accuracy concerns: real-world tests flagged many good addresses as bad and let many bad addresses through
- − Conservative catch-all handling routes to 'unknown' verdict and stops (does not resolve)
- − Low user satisfaction: Trustpilot rating 1.9/5 (66% gave 1 star as of Nov 2026)
- − Refund requests reportedly go unresolved
- − Slow verification speed in some tests (15.2 seconds per address)
- − No explicit cold email sequencer integrations named
Who is NeverBounce best for?
- • Teams already in ZoomInfo or HubSpot ecosystem
- • Occasional list cleaners buying single packs
- • Companies needing real-time API for sign-up form verification
- • Marketers requiring broad integration coverage
Frequently asked questions
Does NeverBounce offer a free trial?
Yes, free first list verification with no credit card required; also free credits upon signing up
Do credits expire?
Pay-as-you-go credits expire 12 months after purchase. Expiry is clearly stated in the terms.
What is NeverBounce's real-world accuracy?
Mixed results in independent tests (Sep-Nov 2026). One test found 0.56% bounce rate but 28.9% rejection rate; another test found it flagged 24.2% of good addresses as bad and let 31.4% of bad addresses through. Conservative approach suits CRM/workflow integration but may result in discarding valid contacts.
How fast is verification?
Bulk lists can be cleaned in ~3 minutes for 10,000 emails. Real-time API verification speeds vary by test; some report 15+ seconds per address.
