Seamless.AI uses machine learning to find verified cell phones, emails, and direct dials in real-time from LinkedIn profiles. Integrates with Salesforce, HubSpot, and Outreach. The Chrome extension makes it seamless to prospect directly on LinkedIn and company websites.
Based on 5.6k reviews
275M+ contact B2B intelligence platform
Apollo.io provides access to 275M+ verified B2B contacts with AI-powered search filters, email sequencing, a built-in dialer, and LinkedIn prospecting. AI features include conversation intelligence, email personalization at scale, and deal intelligence. The most complete sales intelligence platform at its price point.
AI data enrichment and hyper-personalized outreach
Clay combines 75+ data enrichment sources with AI research agents to build hyper-personalized outreach at scale. It can pull LinkedIn data, company news, job postings, tech stack info, and recent funding rounds — then feed them into a custom AI prompt that writes a personalized email for each prospect automatically.
Enterprise-grade B2B data and intelligence
ZoomInfo is the gold standard for B2B data with 100M+ business profiles, intent data, technographic data, and org charts. AI features include buying signal alerts, automated list building, and conversation intelligence from SalesOS. Preferred by enterprise sales and marketing teams.
Intent-based B2B contact data and enrichment
Lusha offers accurate B2B contact data enriched with buying intent signals from across the web. Its API enables real-time CRM enrichment so your records are always up to date. Particularly strong for SDR teams in tech and SaaS who need verified mobile numbers.