Apollo.io
All-in-one sales intelligence and engagement platform combining a contact database with built-in email sequencing.
ZoomInfo
Enterprise B2B contact and company intelligence platform, one of the largest and most established data providers.
Cognism
B2B sales intelligence platform with a strong focus on phone-verified data and European coverage.
Seamless.AI
Real-time search engine for B2B contact and company data with a Chrome extension.
Lead411
B2B contact database with intent data and sales trigger alerts like funding rounds and hiring sprees.
UpLead
Contact database with real-time email verification built into every search.
Adapt.io
B2B contact database aimed at SMB sales teams, with a companion browser extension.
Hunter.io
Domain-based email finder and verifier — one of the earliest and most recognizable tools in the category.
Snov.io
Email finder paired with drip-campaign and outreach automation in the same platform.
RocketReach
Email and phone lookup tool with broad professional profile coverage.
Prospeo
Lightweight email finder built around LinkedIn-based lookups.
Findymail
Email finder and verifier positioned as a lower-cost alternative to larger platforms.
Voila Norbert
Simple, long-running email finder tool with a straightforward pay-per-find model.
GetProspect
Email finder with a Chrome extension built for LinkedIn prospecting.
Clearbit
Real-time company and contact enrichment API, widely used for form enrichment and lead scoring. Now part of HubSpot.
People Data Labs
Developer-first data API selling bulk person and company datasets.
FullContact
Identity resolution and enrichment API focused on matching fragmented contact records.
Dropcontact
GDPR-focused email finder and CRM enrichment tool built for European teams.
Datagma
Enrichment API and Google Sheets/CRM add-on for finding emails and phone numbers.
Coldiq
Started in cold email deliverability and infrastructure; publishes a widely-read sales tool directory and has expanded into data enrichment.
Lusha
Browser extension for quick contact lookups directly on LinkedIn and company sites.
Kaspr
LinkedIn-focused Chrome extension for finding emails and phone numbers.
ContactOut
Chrome extension and search tool for finding personal and work emails from LinkedIn profiles.
Wiza
LinkedIn Sales Navigator list-export and enrichment tool.
Instantly
Cold email sending platform with built-in deliverability tooling and inbox warm-up.
Smartlead
Cold email automation platform built around high-volume mailbox sending and warm-up.
Lemlist
Outbound sequencing platform combining email, LinkedIn, and calling steps.
Outreach
Enterprise sales engagement platform for managing multi-channel outbound sequences.
Salesloft
Enterprise sales engagement platform, a longtime Outreach competitor.
6sense
Account-based marketing and intent-data platform for identifying and prioritizing in-market accounts.
LinkedIn Sales Navigator
LinkedIn's own prospecting and lead-search tool, built directly on top of the LinkedIn graph.
Crunchbase
Company, funding, and people database widely used for prospecting and market research.
LeadIQ
Prospecting tool for building lead lists from LinkedIn and syncing them straight into a CRM.
SalesIntel
B2B contact database that emphasizes human-verified data alongside intent signals.
D&B Hoovers
Business data and sales intelligence platform built on Dun & Bradstreet's company database.
Owler
Company profiles and competitive intelligence platform with crowdsourced business insights.
Anymail Finder
Email finder that only charges for results it can verify as deliverable.
Skrapp.io
Email finder built around LinkedIn profile search and bulk domain lookups.
Nymeria
Bulk email and phone finder API aimed at developers building their own prospecting tools.
SignalHire
Contact finder with a Chrome extension for pulling emails and phone numbers from LinkedIn.
Swordfish AI
Contact finder focused on surfacing direct dials and personal emails alongside work contacts.
FindThatLead
Email finder and prospecting toolkit with a Chrome extension and bulk search.
Clay
Data enrichment and outbound workflow platform that pulls from multiple data providers into one table.
Explorium
External data platform for enriching and augmenting business datasets with third-party signals.
Endato
Identity and contact data API covering US consumer and business records.
Trestle
Identity verification and contact data API used for enrichment and fraud/risk checks.
Diffbot
Web data extraction API that structures company and people data pulled from the open web at scale.
Evaboot
Chrome extension that cleans and exports LinkedIn Sales Navigator lead lists.
Surfe
Chrome extension that syncs LinkedIn contacts and conversations directly into a CRM.
Woodpecker
Cold email automation platform with built-in deliverability protections.
Mailshake
Cold email and multichannel outreach platform with sequence automation.
QuickMail
Cold email automation tool built around deliverability monitoring and A/B testing.
Saleshandy
Cold email outreach platform with sequences, tracking, and mailbox rotation.
Warmup Inbox
Automated inbox warm-up tool that builds sending reputation ahead of cold outreach.
Folderly
Email deliverability monitoring tool that tracks inbox placement across providers.
Groove
Sales engagement platform for managing outbound sequences and activity logging, now part of Clari.
Close
CRM built around calling and email sales engagement, aimed at small and mid-size sales teams.
Klenty
Sales engagement platform for running multichannel outbound sequences across email, calls, and LinkedIn.
Yesware
Email tracking and sales engagement plugin for Gmail and Outlook.
VanillaSoft
Sales engagement platform with lead routing, queue-based calling, and dialer tools.
Demandbase
Account-based marketing and sales intelligence platform for identifying and engaging target accounts.
Terminus
Account-based marketing platform for orchestrating multichannel account-based campaigns.
RollWorks
Account-based marketing platform from NextRoll aimed at combining ads, sales, and marketing on target accounts.
Madison Logic
ABM platform focused on B2B media activation and account-level intent signals.
Bombora
B2B intent data provider tracking content consumption signals across a publisher co-op network.
G2 Buyer Intent
Intent data sourced from research and comparison activity on G2's software review site.
TechTarget Priority Engine
Intent data platform built on TechTarget's network of B2B technology media properties.
Dux-Soup
Long-running Chrome extension for automating LinkedIn connection requests and messaging campaigns.
Linked Helper
LinkedIn automation tool for connection requests, messaging sequences, and CRM sync.
Octopus CRM
Chrome extension for automating LinkedIn outreach campaigns and profile actions.
We-Connect.io
Cloud-based LinkedIn automation platform for outreach sequences that run without a browser open.
Waalaxy
LinkedIn and email prospecting automation tool with a Chrome extension.
Expandi
Cloud-based LinkedIn automation platform built around safe, human-like sending limits.
PhantomBuster
No-code automation and scraping platform widely used for LinkedIn and social data extraction.
ZeroBounce
Email verification and deliverability tool for cleaning lists before sending.
NeverBounce
Email list verification and cleaning service with a real-time verification API.
MillionVerifier
Bulk email verification tool positioned as a low-cost option for cleaning large lists.
Bouncer
Email verification API and toolkit with list cleaning and deliverability checks.
Debounce
Email verification service for cleaning mailing lists before a send.
We're not affiliated with any tool listed here. Descriptions are general positioning, not exhaustive feature comparisons — check each vendor's site for current pricing and specifics. If you think something's off or want your tool added, let us know.