DiscoverOrg vs LeadMine: What You're Actually Comparing in 2026
DiscoverOrg hasn't existed since 2019. If you're searching for this matchup, you're really weighing ZoomInfo - the platform that absorbed DiscoverOrg - against a lightweight email finder built for solo prospectors. We've tested both. They're in entirely different weight classes, and the right pick comes down to budget, team size, and how much data you actually need.
DiscoverOrg Is Gone
DiscoverOrg merged with ZoomInfo in 2019. The brand is discontinued, and its capabilities were folded into ZoomInfo after the acquisition. So the real comparison today is ZoomInfo vs LeadMine - and that's what we'll break down here.
30-Second Verdict
Pick ZoomInfo if you run a 20+ seat sales org, need intent data and org charts, and can absorb $15K+/year on an annual contract.
Pick LeadMine if you're a solo prospector who needs a handful of verified emails for under $100/month and won't outgrow 1,000 credits.
ZoomInfo (Formerly DiscoverOrg) in 2026
ZoomInfo is the largest B2B data platform by database size and market share. Its database spans 500M+ professional profiles, 174M verified emails, and 70M+ direct dials, and it tracks over one billion buying signals each month. For large sales orgs running ABM and multi-threaded enterprise deals, it's still the default choice - though the price tag keeps climbing.
Here's where it gets painful. Based on third-party analyses from Cognism:
- Professional: ~$15,000-$18,000/year (1-3 seats, ~5,000 bulk credits, no intent data)
- Advanced: ~$22,000-$28,000/year (intent + technographics included, typically 3-5 seats and ~10,000 bulk credits)
- Elite: ~$35,000-$45,000+/year (org charts, scoops, segmentation, and additional signals)
Contracts are annual-only, auto-renew, and renewals often jump 10-20%. Cancel, and you may face data-destroy clauses requiring you to purge ZoomInfo-sourced data from your CRM. That last part catches a lot of teams off guard. G2 rating sits at 4.5/5 across 9,036 reviews, but "Outdated Data" and "Inaccurate Data" are recurring review tags. Email accuracy isn't publicly disclosed; third-party estimates commonly peg it around 75-85% depending on segment.
ZoomInfo's estimated 75-85% email accuracy means up to 1 in 4 emails bounce - and you're paying $15K+ for the privilege. Prospeo delivers 98% verified email accuracy across 300M+ profiles, refreshed every 7 days, at roughly $0.01 per email. No annual contracts, no data-destroy clauses.
Get ZoomInfo-level data without the ZoomInfo-level invoice.
LeadMine in 2026
LeadMine leads with simplicity. Instead of a sprawling platform, you get a Chrome extension and a web-based email finder built for individuals pulling small batches of contacts. No org charts, no intent signals, no CRM integrations - just email lookups.
LeadMine runs its own verification stack: MX record checks, catch-all detection, SMTP authentication, disposable domain filtering, and freemail flagging. That's a solid pipeline for a tool at this price point, and it's more transparent about verification methodology than ZoomInfo is.
- Free: $0/month, 10 credits
- Basic: $29/month, 250 credits
- Essential: $99/month, 1,000 credits
Credits don't roll over. One credit equals one prospect lookup, email find, or verification. LeadMine scores 4.3/5 on G2 (52 reviews) and 4.6/5 on Capterra (36 reviews). Users consistently praise the clean interface. The main gripes: credits burn fast, and some emails bounce. LeadMine's G2 profile hasn't been actively maintained in over a year, and the tool has minimal Reddit presence, which limits independent feedback outside review platforms.
Feature-by-Feature Breakdown
| ZoomInfo | LeadMine | |
|---|---|---|
| Starting price | ~$15K/yr | $0 (10 credits) - LeadMine |
| Paid plans | $15-45K+/yr | $29-99/mo - LeadMine |
| Database size | 500M+ profiles - ZoomInfo | Smaller, email-focused |
| Email accuracy | ~75-85% (est.) | Not disclosed - Tie |
| Intent data | Yes (Advanced+) - ZoomInfo | No |
| Contracts | Annual only | Monthly, cancel anytime - LeadMine |
| Free tier | No | 10 credits/mo - LeadMine |
| G2 rating | 4.5/5 (9,036) - ZoomInfo | 4.3/5 (52) |
| Verification detail | Not disclosed | MX, SMTP, catch-all - LeadMine |
| Data refresh | Not disclosed | Not disclosed - Tie |
Here's the thing: if your average deal size sits below five figures, you almost certainly don't need ZoomInfo-level data. LeadMine or a mid-tier platform will get you 80% of the way at 5% of the cost.
What Users Actually Say
ZoomInfo users flag: pricing opacity and aggressive renewal hikes, outdated contacts surfacing in searches, annual lock-in with data-destroy clauses, and credit overages at $0.25-$1.50/credit that inflate costs well beyond the initial quote. We've heard from teams who budgeted $18K and ended up paying $30K+ after overages and a surprise renewal bump.
LeadMine users flag: an intuitive, easy-to-learn interface (the most consistent praise across both G2 and Capterra), credits that burn fast on Free and Basic plans, and occasional email bounces. The low review count makes it harder to spot patterns, but nothing we've seen suggests major reliability issues - just limited scale.
Who Should Pick What
ZoomInfo makes sense for enterprise sales orgs with 20+ reps who need intent data, org charts, and deep technographic filtering baked into their workflow. Just make sure you'll actually use the modules you're paying for. In our experience, most teams only touch a fraction of ZoomInfo's feature set, which means you're subsidizing capabilities that sit idle.
LeadMine works for solo freelancers or consultants testing a small prospect list. At $29-99/month with no contract, the risk is low. You'll hit the credit wall fast, but for low-volume prospecting it gets the job done.
LeadMine caps you at 1,000 credits for $99/month. ZoomInfo locks you into $15K+ annual contracts. Prospeo gives you 300M+ profiles, 30+ search filters, intent data, and verified mobiles - starting at $39/month with 75 free emails to test. Credits don't gatekeep your pipeline.
Scale past both tools without breaking your budget.
FAQ
Is DiscoverOrg still available?
No. DiscoverOrg merged with ZoomInfo in 2019 and no longer exists as a standalone product. All DiscoverOrg features now live inside ZoomInfo, which starts around $15,000/year on annual contracts only.
Is LeadMine really free?
LeadMine offers a free plan with 10 credits per month - enough to test the interface, not to run real prospecting. The Basic plan at $29/month gives you 250 credits, and unused credits don't roll over.
What's a good alternative to both ZoomInfo and LeadMine?
Prospeo offers 300M+ profiles with 98% email accuracy at roughly $0.01 per email, starting from $39/month. It includes a free tier (75 emails/month), no annual contracts, GDPR compliance, and a 7-day data refresh cycle. For teams that need reliable data without enterprise overhead or tight credit limits, it's the strongest option in this comparison.