Apollo.io
by Apollo.io
Apollo.io is a business-to-business sales intelligence and engagement platform. It provides company and contact data, prospecting, workflow automation, email sequencing, calling, analytics, and data-enrichment tools.
Why Abandoned
Apollo.io's website is operational and the company continues to publish product and corporate updates. In June 2025, it announced a $100 million Series D and new AI sales tools.
💵 Pricing & access
- Pricing model
- Not documented
- Starting at
- Not documented
- Official site
- Visit Apollo.io →
🩺 Health Signals
- HTTP Status
- 200
- Response
- —
- SSL
- —
- Confidence
- 99%
- Domain expires
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- Last content change
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- Last tweet
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- API status
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📅 Timeline
Founded as ZenProspect
Tim Zheng, Ray Li, and Roy Chung founded the company in 2015 under the ZenProspect name. The exact day and month are not publicly established.
ZenProspect rebranded as Apollo
The company announced its rebrand from ZenProspect to Apollo, bringing its sales data and engagement products under the Apollo identity.
Raised $110 million in Series C funding
Apollo announced a $110 million Series C led by Sequoia Capital, with participation from existing investors Tribe Capital, Nexus Venture Partners, and NewView Capital.
Raised $100 million at a $1.6 billion valuation
Apollo announced a $100 million Series D led by Bain Capital Ventures, with participation from Sequoia Capital, Tribe Capital, and Nexus Venture Partners.
Raised another $100 million Series D extension
Apollo announced a $100 million financing led by Bain Capital Ventures, with participation from existing investors, and introduced AI-powered sales products.
🔄 Alternatives to Apollo.io
Fireflies.ai
🟢ActiveAI notetaker that automatically records, transcribes, and analyzes voice conversations.
Gong.io
🟢ActiveRevenue intelligence platform using AI to analyze sales conversations and provide insights.
Grain
🟢ActiveAI meeting recorder that captures and shares key moments from video calls.
Zoom AI Companion
🟢ActiveZoom AI Companion is a generative AI assistant built into Zoom Workplace. It can summarize meetings, identify action items, help draft chat and email messages, and answer questions using permitted workplace context.
🪦 Other dead Sales tools
BoostUp.ai
🟡Acquired / MergedBoostUp.ai was a revenue intelligence and operations platform that used AI to analyze sales activity, inspect pipelines, forecast revenue, and support account planning. The company was acquired by sales technology provider Cision in 2024.
Revenue.io
🟡Acquired / MergedRevenue.io is a sales engagement and conversation intelligence platform that provides AI-assisted calling, coaching, lead prioritization, and activity capture for revenue teams using CRM workflows.
ExecVision
🟡Acquired / MergedExecVision was a conversation-intelligence platform for sales and customer-facing teams. It recorded, transcribed, analyzed, and surfaced coaching insights from calls. Mediafly acquired the company in 2021 and incorporated its technology into Mediafly Intelligence360.
Refract
🟡Acquired / MergedRefract was a sales conversation intelligence and coaching platform that recorded and analyzed calls, highlighted coachable moments, and helped sales teams review performance. Allego acquired the company in 2020.
❓ Frequently Asked Questions
What is Apollo.io used for?
Apollo.io is used by business-to-business sales teams to find company and contact records, build prospect lists, enrich customer data, run outbound sequences, make calls, track engagement, and analyze sales activity.
Is Apollo.io a CRM?
Apollo.io includes prospect records, workflows, activity tracking, and deal-related sales features, but it is primarily positioned as a sales intelligence and engagement platform. It can also integrate with established CRM systems.
Does Apollo.io use AI?
Yes. Apollo.io offers AI-assisted prospect research, message generation, workflow automation, conversation intelligence, recommendations, and other tools intended to support sales prospecting and execution.
Who founded Apollo.io?
Apollo.io was founded in 2015 by Tim Zheng, Ray Li, and Roy Chung. The business originally operated under the ZenProspect name before rebranding as Apollo in 2019.
What are the best Apollo.io alternatives?
Within this catalogue, Gong is the closest sales-focused alternative, especially for revenue intelligence and conversation analytics. Fireflies.ai, Grain, and Zoom AI Companion are alternatives for meeting capture, transcription, and follow-up workflows, though they do not fully replace Apollo's prospect database and outbound engagement suite.