Apollo.io is a B2B go-to-market platform helping revenue teams find prospects, enrich records, automate outreach, and move deals forward. Combines 275M+ verified B2B contacts with 65+ advanced filters and AI-assisted execution.

Apollo combines sales intelligence and engagement in unified workflow. Features include searching 230M+ contacts at 30M+ companies, native CRM integrations with Salesforce and HubSpot, email sequence automation, built-in power dialer for cold calling, and advanced lead filtering and enrichment.
RevOps, Sales Engagement and Conversation Intelligence
G2 Rating
Revenue.io (formerly ringDNA) is a Salesforce-native revenue execution platform that unifies dialing, sales engagement, conversation intelligence, real-time coaching, and AI into a single platform.
AI Sales Outreach & Cold Email Platform
Founded
G2 Rating
Starting Price
Reply.io is an AI-powered sales outreach platform enabling multichannel prospecting, lead generation, and deal automation. It includes real-time data, AI SDR agents, and comprehensive email infrastructure.
Cold Email Platform with Sequence Workflows & Deliverability
QuickMail is a cold email automation platform combining sequence automation with built-in deliverability features, designed for agency owners, sales teams, and lead gen professionals. The Pro plan includes advanced sequence workflows and multiple email accounts.