Apollo.io: Comprehensive Company & Product Overview

1. Executive Summary & Company Profile

Apollo.io (legal corporate entity: ZenProspect, Inc.) is a United States-based software-as-a-service (SaaS) company headquartered in San Francisco, California. Founded in 2015 by Tim Zheng, Ray Li, and Roy Chung, Apollo.io originally began as ZenProspect before rebranding in 2018 to reflect its expanded scope.

The company provides an all-in-one, AI-powered go-to-market (GTM) and B2B sales intelligence platform. Apollo.io converges prospective buyer data, multi-channel outreach automation, conversation intelligence, data enrichment, and deal pipeline management into a unified workspace. Traditionally, sales and revenue operations teams had to purchase separate subscriptions for data providers, sales sequencing engines, call recording platforms, and data cleaning utilities; Apollo.io consolidates this fragmented software stack into a single system supported by a hybrid credit- and seat-based licensing model.