Mattermark vs WarpLeads: Honest Comparison (2026)

Mattermark vs WarpLeads: Which B2B Data Tool Is Worth Your Money?

Comparing Mattermark vs WarpLeads is like comparing a research library to a bulk warehouse. One gives you company intelligence and growth signals. The other hands you a massive CSV dump at $99/mo and wishes you luck cleaning it. They don't really compete - but if you're cross-shopping them, here's what you need to know.

30-Second Verdict

• Pick Mattermark if you need company-level intelligence - growth signals, funding data, 80+ firmographic fields - for account research and prioritization.
• Pick WarpLeads if you want the cheapest bulk contact export on the market and you're prepared to verify every email yourself. Their own docs cite ~70% validity after cleaning.

What Is Mattermark (Now)?

Most people think Mattermark is dead. The original company shut down in December 2017 after selling to FullContact for less than $1M. It's since re-launched as an independent company with a 14-day free trial, no credit card required.

The current product covers 4M companies and 20M key contacts with 80+ fields per company, built using machine learning, web crawlers, and NLP across millions of sources, verified daily by in-house analysts. The strength is signals, not scale: team size changes, web traffic trends, funding rounds, media mentions. Think of it as a research tool for deal professionals, not a prospecting database.

Pricing: Standard starts at $49/user/month on a month-to-month basis, Professional runs $500/user/month on an annual contract, and Enterprise is custom.

What Is WarpLeads?

WarpLeads positions itself as "the only lead database with truly unlimited exports." The core offer: $99/mo gets you unlimited contacts and exports from 100M+ people and 20M+ companies. There's also a free tier with 30 contacts/month.

Here's the thing nobody mentions upfront: WarpLeads explicitly requires you to verify every email after export using a third-party tool. Their help docs recommend Reoon and say they usually get around 70% valid emails after cleaning. Data refreshes every few months - not weekly, not monthly. And confusingly, WarpLeads also sells "Additional Contact Export" add-ons ranging from $40/mo to $2,800/mo, despite the unlimited plan claiming no limits.

API access starts at $299/mo billed quarterly and requires an active Unlimited subscription on top, so your real API cost is $398/mo minimum.

Pricing & Features Side-by-Side

Data Quality: The Real Difference

We've tested the "unlimited cheap data" playbook enough times to know how it ends: tanked sender reputation and a week spent begging ESPs for forgiveness. WarpLeads' own documentation says they usually get around 70% valid emails after cleaning - meaning 30% of what you export is junk even after running it through a verifier.

Reddit sentiment on WarpLeads is genuinely split. One user in r/Emailmarketing called the quality "terrible (high bounce rate, old emails etc)" even after verifying with Apollo. But another poster in r/coldemail ran a 90-day A/B test where WarpLeads hit 9% bounce, 7.1% reply rate, and $22 cost per qualified lead - beating Apollo, ZoomInfo, and four other tools. The contradiction likely comes down to how aggressively you filter and verify before sending.

Mattermark's data is analyst-verified daily, but the database is small - 20M contacts versus WarpLeads' 100M+. For company intelligence, Mattermark's quality-per-record is strong. For outbound volume, it simply isn't built for that.

Let's be honest: if your average deal size is under five figures, you probably don't need Mattermark-level company intelligence. And if your domain reputation matters at all, you can't afford WarpLeads' 30% junk rate. Most teams weighing this comparison actually need a third option entirely.

The Better Path for Outbound

If what you actually need is verified emails and direct dials for outbound sequences, neither Mattermark nor WarpLeads solves that cleanly.

Prospeo's database covers 300M+ profiles with 98% email accuracy and 125M+ verified mobile numbers, all on a 7-day refresh cycle. No third-party verification step required - emails are verified before you export them. In our experience, tools that skip verification consistently underperform on deliverability, and the "savings" from cheap data evaporate once you factor in bounced sends and damaged domains.

If you're trying to protect deliverability at scale, start with the basics: email deliverability, email bounce rate, and sender reputation.

For a real-world example: Stack Optimize built $0 to $1M ARR using Prospeo data, maintaining 94%+ deliverability and under 3% bounce across all clients - zero domain flags.

Final Verdict

Company intelligence and growth signals - Mattermark. It's a research tool, not a prospecting engine.

Cheapest bulk leads you'll clean yourself - WarpLeads at $99/mo. Budget another $20-50/mo for a third-party verifier.

Verified emails and direct dials for outbound - Prospeo. No cleaning step, 98% accuracy, weekly refresh.

The deciding factor when weighing Mattermark vs WarpLeads isn't price - it's what you're actually building. Account research and deal scoring? Mattermark. Raw volume on a shoestring? WarpLeads. Outbound campaigns where deliverability is non-negotiable? Neither of these two.

If you're building a modern outbound motion, it helps to align your sales prospecting techniques with the right sales prospecting databases and outbound lead generation tools.

FAQ

Is Mattermark still active in 2026?

Yes. It re-launched independently after FullContact acquired it in 2017. It now offers 4M company profiles and 20M contacts with a 14-day free trial, no credit card required.

Is WarpLeads really unlimited?

The $99/mo plan has no export caps, but you must verify all emails with a third-party tool. WarpLeads says they usually get around 70% valid emails after cleaning. Unlimited quantity, not unlimited quality.

Can I use WarpLeads data without a verifier?

No - and WarpLeads themselves say not to. Sending unverified exports will spike your bounce rate above 10%, which risks permanent domain blacklisting. Budget $20-50/mo for Reoon, ZeroBounce, or a similar service on top of the $99 subscription.