Apollo.io at $150M ARR

TL;DR: Apollo is evolving from a PLG sales tool into an all-in-one GTM platform with CRM against the insurgent threat of Clay and the incumbent juggernaut HubSpot. Sacra estimates that Apollo.io hit $150M ARR in May 2025, with $134M ARR at year-end 2024, up 40% year-over-year. For more, check out our full report and dataset on Apollo.

We last covered Apollo in January 2024 as it crossed $100M ARR, growing 100% YoY with its vertically integrated data & outbound sales platform.
Here’s our Apollo update with key points via Sacra AI:
- Sacra estimates that Apollo.io hit $150M ARR at the end of May 2025, growing 40% YoY in 2004 to reach $134M ARR, up from $96M ARR at the end of 2023, giving it a ~10x forward revenue multiple off its August 2023 Series D led by Bain Capital Ventures (Merritt Hummer) which valued the company at $1.6B.
- Most noticeably over the last 12 months, the contact data that Apollo weaponized to disrupt data brokers like Dun & Bradstreet (NYSE: DNB) and enterprise SaaS like Zoominfo (NASDAQ: GTM)—by making available via self-serve what previously required large up front payments—has itself gotten commodified by AI-powered scraping, with GTM teams shifting budget from volume-based cold outreach to signal & behavior-triggered, personalized engagement via AI sales research tools like Clay ($30M ARR in 2024, growing 500% YoY).
- Apollo has responded with a wave of launches including Scores & Signals (Clay), Smart Meeting Suite (Gong & Calendly) and Workflows (Zapier), bundling together everything that GTM teams need with a lightweight CRM that positions Apollo as an all-in-one & system of record for SMBs, increases stickiness & drives seat expansion and makes it competitive against HubSpot (NYSE: HUBS).
For more, check out this other research from our platform:
- Apollo (dataset)
- Clay (dataset)
- Gong (dataset)
- Calendly (dataset)
- Zapier (dataset)
- Outreach (dataset)
- 6sense (dataset)
- Otter (dataset)
- Matt Sornson, co-founder & ex-CEO at Clearbit, on vertically integrated data and workflow tools in sales and marketing
- Austin Hughes, CEO and co-founder of Unify, on the death of the SDR
- Nico Ferreyra, CEO of Default, on building an end-to-end inbound sales platform
- Bob Moore, CEO and co-founder of Crossbeam, on ecosystem-led growth
- How AI is transforming B2B SaaS
- Gongification of SaaS
- How Clearbit sold to HubSpot