Apollo.io
Making world-class go-to-market accessible to everyone.
862 employees · est. 2015 · San Francisco, United States
RevSure AI
Marketing Optimization | Pipeline Acceleration | Revenue Predictability
81 employees · est. 2021 · Wilmington, United States
Apollo.io is the older company (2015 vs 2021); Apollo.io is the larger of the two.
Side-by-Side Comparison
| Metric | Apollo.io | RevSure AI |
|---|---|---|
| Founded | ||
| Founded | 2015 older | 2021 |
| Headquarters | ||
| Headquarters | San Francisco, United States | Wilmington, United States |
| Employees | ||
| Employees | 862 larger | 81 |
| Industry | ||
| Industry | Marketing | SaaS |
| Funding Stage | ||
| Funding Stage | Series D | Seed |
| Total Funding | ||
| Total Funding | $251.20M | $9.50M |
| Funding Rounds | ||
| Funding Rounds | 6 | 2 |
| Services | ||
| Services | Outbound Lead Generation, Inbound Lead Qualification, Deal Execution, Data Enrichment, Sales Workflow Automation, AI Assistant | Not tracked yet |
| Target Customers | ||
| Target Customers | Sales Leaders, Account Executives, Sales Development Representatives, Revenue Operations Professionals, Marketers, Founders | Not tracked yet |
| Taxonomy | ||
| Taxonomy | AI GTM System, B2B Contact Database, Sales Automation, Marketing Automation, Customer Acquisition, Data Enrichment, Outbound Sequences, Revenue Growth, Go-to-Market Strategies, Customer Engagement, Sales And Marketing Integration, Lead Generation, Prospect Conversion | AI-based Pipeline Acceleration, Predictable Revenue Growth, Pipeline Generation, Pipeline Conversion, Revenue Intelligence Tools, Marketing Optimization, Sales Forecasting, SDR/BDR Optimization, Revenue Generation, Predictable Pipeline, Revenue Teams, Pipeline Health, Go-to-Market Strategy |
| Website | ||
| Website | apollo.io | revsure.ai |
About Apollo.io
Apollo.io, founded in 2015 and headquartered in the United States, has emerged as a leading player in the Marketing industry with its AI-driven GTM (Go-To-Market) System. The company's slogan, "Making world-class go-to-market accessible to everyone," encapsulates its mission to democratize access to...
About RevSure AI
RevSure AI, founded in 2021 and headquartered in the United States, is a promising player in the SaaS industry, focusing on transforming fragmented marketing and sales data into actionable insights. With the slogan "Marketing Optimization | Pipeline Acceleration | Revenue Predictability," RevSure AI...
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Funding, hiring, leadership and stack changes at Apollo.io and RevSure AI — by email.
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Compiled from the BounceWatch company index. We last looked at Apollo.io on 4 Sep 2026, and RevSure AI on 11 Mar 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.