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Best Outbound List Builder 2025

Enrich your
leads at scale.list faster.life for good.leads at scale.

An AI GTM agent for signal-based selling — sourcing 10× quality contacts in one shot.

1,000+ GTM teams
100+ data providers1 subscription

Oh snap,
your competitor just won a deal
you didn't know existed.

Pronto closes the gap between signal and send — so you're never late again.

Signal-first sourcing

Catch every buying signal

100+ intent providers unified in one feed — funding, hires, job posts, tech changes — routed to the right rep the minute they happen.

1st to the inbox

Outpace every competitor

Pronto drafts the outreach, enriches the contact, and queues the send — so your team is first to call while the signal's still warm.

All your data providers
plugged into one subscription.

ClayApolloZoomInfoLinkedIn SalesSmartleadSalesloftHubSpotSalesforceOutreachLemlistInstantlyHunter.ioCognismLushaDropcontactKasprSurfeHeyReach

An AI sales engine that closes every gap.

Three steps, fifteen minutes, and you're live. No more missed opportunities.

01
Step 015 min

Be there on Day 1.

Pronto detects your next buyer the moment they're ready — new-hire, champion-move, funding signals. 100% automated.

Real-timeICP detectionChampionmove tracking
LIVE signals
New hirePromotedFunded
+247 this week
02
Step 025 min

Full coverage, one subscription.

Unlock the 30% of buyers your stack can't see. 100+ data providers, waterfall-enriched, verified in real time.

more contacts10×verified phones100+providers
03
Step 035 min

Pipeline ready every morning.

Your reps call, they don't build lists. Qualified leads pushed to HubSpot & Salesforce before the first coffee.

HubSpot& Salesforce syncAutosequence enrollment
Pronto
HubSpot
Salesforce
Synced  ·  08:03 AM
Tweaks
Pillar card style

Join 1,000+ teams
winning their market.

We've tried ZoomInfo, Cognism, Lusha, and others. They're not bad. However Pronto beats all of them when you want emails and phone numbers of real prospects.
Thomas Rebaudex-CEO Meero · Investor in 32 startups
Daniel Seror· 1stCo-founder & CEO, Dolfin

Bold move — hope to see you there soon. And btw, Pronto is insane 🔥

I'm a loyal Lusha guy, but you're starting to put everything in question with the accuracy of Pronto. Incredible infrastructure you've built over there 👏

Marie DupontSales Ops, Yousign · 9:42 AM

We replaced 4 tools with Pronto. Same coverage, half the cost. Our enrichment jumped from 55% to 85% overnight.

Alex Rivera· 1stHead of Sales, Qonto

Our SDRs used to spend 2h/day building lists. Now it's done before they arrive. Pronto paid for itself in 3 days.

Sofiane Ben miloudExperts BIM · 3:14 PM

Just so you know, I enriched the same list in Kaspr and Pronto. Here are the results:

Kaspr: 22 leads enrichedPronto: 73 leads enriched

Incredible 👏

Brenden BilbaoSalesforce · 12:46 PM

Pronto is so good already. So many prospects with email engagement I've been desperate to get on the phone. Thanks for this!

🤝 3🤩 1❤️ 1

Colin M. · 2:14

Sophie AllenHubSpot · 8:03 AM

Just wanted to say — the waterfall enrichment is a game changer. We went from 45% to 88% match rate overnight. Never going back to single-provider tools.

🙌 4🔥 2
Eric Nowoslawski· 1stFounder, Growth Engine X · Clay Partner

A customer kept asking me what we use for an email waterfall. After the 5th time I said “stop and just use Pronto, it'll do what we built internally but way better.”

They replied: “Pronto is legit! I found emails for 94% of leads Apollo found. Game over.”

Dan Brockwell3:14 PM · to me

Hope you're well. Just wanted to let you know it's been very useful. It gave me mobile numbers to the correct people who were not on Cognism.

Benjamin DouablinDatadog · 7:59 AM

I added 1,000 credits to your account 😂 That's how much we use it. Best investment this quarter, honestly.

😂 5🔥 2
Pronto helped us scale 1:1 outreach for ABM by enriching contact data at target accounts in a few clicks.
Amber StoneHead of Enterprise ABM, Figma

Unlock your hidden deals.

Every week, 40% of your deals are slipping by — unreachable contacts, missing phones, competitors getting there first. Pronto hands them back.

% of your deal potential
You today
60%
Hidden deals
You with Pronto
Find more
people
More
phones
Before
competitors
100%
01We're a small sales team. Is Pronto worth it?
Pronto
If you have at least one SDR and a defined ICP, Pronto saves them 3–5 hours a week and fills their pipeline with verified, ready-to-call contacts. Day one.
02We already use Apollo or Lusha. Why switch?
Pronto
You're not switching — you're upgrading. Apollo and Lusha give you one data source. Pronto gives you 100+, with waterfall enrichment that finds the contacts they miss. That's about 30% of your market.
03How does Pronto compare to Clay?
Pronto
Clay is a canvas — you build the workflow. Pronto is an engine — it ships with the workflow. If you love tinkering, use Clay. If you want verified pipeline in your sequences every morning, use Pronto.
04How long does setup take?
Pronto
Under 30 minutes. Connect your CRM, define your ICP, and your first list is ready before your next standup.
05Do we pay for bad data?
Pronto
Never. You only pay for verified, valid contacts. If the email bounces or the phone is wrong, you don't pay. Simple.
06Is Pronto GDPR compliant?
Pronto
Yes. GDPR-compliant by default. Data processed in EU regions, DPAs on request, and every contact sourced from GDPR-legitimate providers.
Ask Pronto anything…
Compliance

Data protection you can trust.

Every contact we surface is sourced from certified providers and handled under the strictest global privacy frameworks.

AICPA SOC 2 badge
SOC 2

ProntoHQ is SOC 2 Type II compliant, ensuring the highest standards in data security and privacy protection for your cold calling operations.

GDPR compliance badge
GDPR

Fully compliant with EU's General Data Protection Regulation. We handle your prospect data with strict respect for European privacy laws.

CCPA compliance badge
CCPA

We comply with the California Consumer Privacy Act, protecting the privacy rights of your California-based prospects.