Best Lead Intelligence Software for Insightly

UpLead, a B2B prospecting platform, provides the highest quality B2B contacts & company data. Features include email verification in real time, worldwide contacts in more than 200 countries, 50+ search criteria and technology tracking. They also offer account-based marketing, email pattern intelligence, social profiles links, Salesforce integrations, robust API, and other CRM integrations.

FullContact is a real-time, privacy-safe Identity Resolution company building trust between people and brands. We deliver the capabilities needed to create tailored customer experiences, improve ad targeting and measurement as well as improve identity verification and fraud solutions by unifying data and applying insights in the moments that matter. FullContact provides the data + intelligence you need in your platforms to accurately identify people and optimize experiences—while putting privacy and security first.

Lead411 provides company intelligence and accurate contact data with direct dials and email addresses. It also offers a sales cadence tool that automates your email/sms outreach.

Reply.io combines AI automation, real-time data, and multichannel engagement to help modern sales teams generate, nurture, and convert leads at scale. The platform’s advanced database of over 1 billion B2B contacts allows users to discover ideal prospects using audience targeting and enrichment tools. Through AI-driven personalization, users can craft dynamic email sequences, automate LinkedIn messages, and even send follow-up calls or SMS from one unified dashboard. Its flagship Jason AI SDR agent autonomously handles outreach—analyzing data, generating messages, and scheduling meetings on behalf of the team. Reply.io’s robust email deliverability suite ensures that every message reaches the right inbox with features like domain warm-ups, spam prevention, and reputation tracking. Sales teams can manage every stage of the pipeline—discovery, engagement, and conversion—without switching tools. Seamless integrations with CRMs, calendars, and marketing platforms make it easy to sync activities and track performance. With over a decade of innovation, Reply.io remains the go-to automation partner for businesses looking to humanize and scale sales outreach through AI.