Apollo.io
Revenue went from $2.5 million to well over $150 million in seven years. A new CEO arrived in early 2026 pushing hard into enterprise, right as the credit system got reworked in ways some users say burn through allowances faster.
What is Apollo.io?
Ray Li, Roy Chung, and Tim Zheng founded Apollo in San Francisco in 2015, originally as a company called ZenLeads, launching a web-scraping tool that helped sales teams build prospect lists quickly. The growth curve since has been unusually steep: annual recurring revenue went from $2.5 million in 2018 to $150 million-plus by May 2025, and the company has said its revenue has grown more than fivefold since its $100 million Series D in August 2023, a round led by Bain Capital Ventures that valued Apollo at $1.6 billion. Matt Curl joined as CEO in February 2026, and under his leadership the company has reported enterprise accounts growing 400% over the following twelve months, a clear signal of where Apollo wants to compete next after building its base among smaller sales teams.
The product today spans a database of more than 230 million verified contacts and 30 million companies, combined with outbound tooling — email sequencing, a built-in dialer, CRM sync, and an AI Assistant launched in March 2026 that automates prospecting suggestions and meeting booking, with beta users reporting 2.3x more meetings booked. What's changed more quietly is how credits work. Through late 2025 and into 2026, Apollo consolidated its credit system, and actions that didn't previously consume credits — certain enrichment steps, exports, AI-powered research features — now do, according to teams tracking the shift closely. Combined with per-seat pricing on top of credit usage, that's made real monthly cost noticeably harder to predict than the advertised per-user rate alone suggests.
Revenue and valuation figures are drawn from independent financial tracking (Sacra, Tracxn) and Apollo's own funding announcements; credit-system changes are documented by third-party pricing analyses tracking the transition through late 2025 and 2026.
Key features
Contact database
230M+ verified contacts and 30M+ companies, filterable by 65+ criteria.
Email sequencing
Automated, multi-step outreach sequences built into the same platform as the database.
Built-in dialer
Native calling with recording and AI insights, unlocked on the Professional plan.
AI Assistant
Launched March 2026, automates prospecting suggestions and meeting booking.
Topic-level intent data
Flags accounts researching relevant topics, though without hiring or funding signals some rivals track.
CRM sync
Native integration with Salesforce and HubSpot, logging outreach automatically.
Pricing
Free
- Verified contacts, instant research, and built-in outreach included
- Enough to test the database and sequencing workflow
- Credit allowance is thin for anything beyond light prospecting
Basic
- Unlimited email sequences and CRM integrations
- Per-seat pricing, so cost multiplies directly with team size
- No dialer or A/B testing at this tier
Professional
- Adds A/B testing, a US dialer, and call recording with AI insights
- Same per-seat scaling as Basic, at a higher base rate
- Organization/Enterprise tier above this is custom-quoted
Pricing combines per-seat charges with a separate credit system for database exports and enrichment actions — both scale independently, so real monthly cost depends on team size and usage volume together, not the advertised per-seat rate alone. Apollo has reworked which actions consume credits as recently as late 2025 into 2026; verify current credit rules before estimating cost at scale.
Where Apollo fits in a GTM stack
Integrations & platforms
Pros, cons & best for
Pros
- Consolidates database, sequencing, dialer, and CRM sync into one billing line
- Strong reviewer sentiment on data accuracy and ease of use — 4.7/5 across 9,000+ G2 reviews
- Genuinely fast product iteration, including a March 2026 AI Assistant already showing meeting-booking gains
Cons
- Per-seat pricing compounds with credit usage, making real cost hard to predict in advance
- Single-source contact data, without the waterfall enrichment some competitors use to fill gaps
- Intent data stays topic-level only, missing hiring, funding, or tech-change signals some rivals include
Best for
- Sales teams wanting prospecting, outreach, and CRM logging in a single subscription
- Startups and mid-market teams replacing several separate point tools
- Not the pick for teams needing multi-provider data waterfalls or deep buying-signal intent
Take a look inside
Alternatives
For multi-provider data waterfalls or deeper buying-signal intent:
Our verdict
Apollo's growth curve isn't marketing spin — going from $2.5 million to well over $150 million in annual revenue in seven years reflects a product that genuinely replaced several separate tools for a large number of sales teams, and the 4.7-out-of-5 rating across more than 9,000 G2 reviews backs that up with real user sentiment, not just funding-round headlines. What deserves a closer look before signing a contract in 2026 specifically is the pricing mechanics: per-seat cost stacks with a credit system that was reworked to charge for actions it didn't charge for before, and that combination makes the advertised $59 or $99 per-user rate a starting point rather than the real number a growing team will pay. None of that erases the core value — a single, well-reviewed database plus outreach tooling is still a meaningful consolidation for most sales teams. It just means budgeting for Apollo now takes more than multiplying the sticker price by headcount. Strong pick for teams consolidating prospecting and outreach into one tool. Worth modeling credit usage carefully before committing, especially for growing teams likely to hit new limits mid-year.
FAQ
How fast has Apollo actually grown?
Annual recurring revenue went from roughly $2.5 million in 2018 to more than $150 million by May 2025, and the company says revenue has grown more than fivefold since its August 2023 Series D.
Did Apollo's credit system really change recently?
Yes — through late 2025 and into 2026, Apollo consolidated its credit rules, and certain actions like specific enrichment steps, exports, and AI research features now consume credits that previously didn't, according to independent pricing analyses.
Is Apollo's pricing per seat, credit-based, or both?
Both — plans are priced per user per month, and usage of the contact database and enrichment features draws down a separate annual credit allowance, so total cost depends on team size and usage together.
Who founded Apollo.io?
Ray Li, Roy Chung, and Tim Zheng founded it in San Francisco in 2015, originally under the name ZenLeads, before rebranding to Apollo.
What changed with the new CEO in 2026?
Matt Curl joined as CEO in February 2026 and has pushed the company further into enterprise sales, with Apollo reporting a 400% increase in enterprise accounts over the following year.
Does Apollo offer deep buying-intent signals?
Its intent data is topic-level — flagging accounts researching relevant subjects — but it doesn't natively track hiring, funding, or technology-change signals the way some specialized intent-data competitors do.