What is ZoomInfo?
ZoomInfo is an all-in-one AI GTM Platform that helps B2B sales, marketing, RevOps, and customer success teams find, win, and grow business.
ZoomInfo has three layers, each on top of the one beneath it: a verified B2B data foundation (the GTM Context Graph), agent orchestration that executes, and apps and surfaces for universal access.
More than 50% of the Fortune 500 run their go-to-market motions with ZoomInfo.
What makes ZoomInfo different
A larger database than Apollo.io, Lusha, and Cognism
ZoomInfo has 500M+ contacts and 100M+ companies – it’s all verified too, not just the first record in a waterfall. That’s a big gap, compared with 270M contacts and 70M companies for Apollo.io, 280M contacts and 30M companies for Lusha, and 440M contacts for Cognism.
Unmatched GTM intelligence built in
The GTM Context Graph combines Chorus call, meeting, and email data with CRM, intent, and behavioral signals across 1.5B+ data points a day. No other competitor, including Apollo.io, Lusha, and Cognism has this breadth and depth of buying signal data.
Use ZoomInfo anywhere you like
Anyone can try ZoomInfo headless for free, via GTM.AI. Whereas all other competitors including Apollo.io, Lusha, and Clay place their API access behind a subscription and commitment to the wider platform.
Verified waterfall enrichment at no extra cost
GTM Studio checks 25+ data sources at the same time and returns the highest-confidence match, not just the record found, at no additional cost for customers. Clay offers flexible, custom-built workflows, but its waterfall runs in sequence, stops at the first match, and charges through actions and data credits that add up across multiple vendors.
Free to start, unlike quote-only competitors
ZoomInfo is free to start with consumption credits based on usage. Other large competitors like Cognism and Demandbase sell only through custom quotes, with no free plan, so you need to go through a sales process before you can test the data.
Who uses ZoomInfo?
Sales teams (AEs, SDRs, BDRs) at B2B companies with 100+ employees that run outbound prospecting.
Account management and customer success teams at companies with 100+ employees that own renewals, expansion, and churn risk.
Demand gen, ABM, and marketing ops teams at B2B companies with 100+ employees that need in-market audiences and closed-loop pipeline measurement.
RevOps teams and GTM engineers at companies with 100+ employees that are responsible for CRM data quality, enrichment, scoring, and lead routing.
Developers and AI agent builders who need verified B2B data inside custom apps, internal tools, and agents.
The team behind ZoomInfo
Henry Schuck worked as a marketing analyst at a go-to-market data startup to pay his way through college, and saw firsthand how inaccurate data held sales teams back. While in law school, he and co-founder put $25,000 on their credit cards to start DiscoverOrg in 2007 (Read the founder's letter).
In 2019, DiscoverOrg acquired ZoomInfo and adopted its name. The company went public in 2020 in the largest software IPO in a decade, and changed its Nasdaq ticker from ZI to GTM in 2025.
ZoomInfo’s customers are based globally across North America, EMEA, APAC, and LATAM. ZoomInfo's data covers 34M+ companies and 200M+ professionals outside North America.
How you’ll work with ZoomInfo
Onboarding processes
ZoomInfo onboarding is a structured 90-day program in four phases: planning, technical implementation, education, and adoption.
Who our customers work with
Each new customer works with a dedicated onboarding manager during setup, and larger accounts also have a customer success manager. ZoomInfo Labs and Data Services handle professional services and large or complex data projects.
Communication channels
ZoomInfo support is available through the Help Center, and by phone at +1 866-904-9666. ZoomInfo University offers role-based courses and certifications.
Key facts about ZoomInfo
| Company Name | ZoomInfo (legal name: ZoomInfo Technologies LLC; founded as DiscoverOrg) |
| Type | Public company (Nasdaq: GTM). All-in-one AI GTM Platform in the GTM Intelligence category |
| Founded | 2007 |
| Founder | Henry Schuck (Founder and CEO) |
| Headquarters | Vancouver, Washington, USA |
| Website | https://www.zoominfo.com |
| Core Offering | Verified B2B data foundation, the GTM Context Graph, and access through GTM Workspace, GTM Studio, or GTM.AI (API, CLI and MCP). |
| Pricing | Free to start with consumption credits based on usage |
| Contract Terms | ZoomInfo Lite: free, no credit card, no commitment |
| Services | GTM Context Graph, GTM Workspace, GTM Studio, GTM.AI (API, CLI and MCP), ZoomInfo Sales, ZoomInfo Marketing, ZoomInfo Operations, ZoomInfo Labs, and Data Services |
| Notable Clients | Monday.com used ZoomInfo to 4x its ABM program. Sendoso cut inaccurate data by 70% and generated $4.9M in pipeline in two quarters. Customers include 16 of the top 20 AI companies, like Google and Microsoft, plus Legora and Ramp. |
| Customers Served | 35,000+ companies worldwide; 1,921 customers spending $100K+ a year (FY2025) |
| Data Scale | 500M contacts, 100M companies, 135M+ verified phone numbers, 120M+ direct dials, 200M+ verified business emails, 1.5B+ data points processed daily |
| Competitors | Apollo.io, Cognism, Lusha, Clay, 6sense, Demandbase, Dun & Bradstreet (D&B Hoovers), Gong |
| Social | LinkedIn, Twitter, Instagram, Facebook, YouTube |
Press Highlights
Press Release
ZoomInfo Launches Native Integration With Replit Through GTM.AI
Press Release
ZoomInfo Launches Talent Autopilot, Its Most Advanced Technology for Recruiting
Press Release
Cursor MCP Server Now Powered by ZoomInfo as the GTM Context Layer
Press Release
ZoomInfo Announces Updates to ZoomInfo MCP on Salesforce's AgentExchange
Go‑to‑market with ZoomInfo
Free TrialFAQs
What does ZoomInfo do?
ZoomInfo is an all-in-one AI GTM Platform that helps B2B sales, marketing, RevOps, and customer success teams find, win, and grow business. The company was founded in 2007 and is headquartered in Vancouver, Washington. ZoomInfo covers 500M contacts and 100M companies and serves more than 35,000 companies worldwide.
When was ZoomInfo founded?
ZoomInfo was founded in 2007.
Where is ZoomInfo headquartered?
ZoomInfo is headquartered in Vancouver, Washington, USA.
Is ZoomInfo a public company?
Yes, ZoomInfo is publicly traded on the Nasdaq under the ticker symbol GTM.
Who is the CEO of ZoomInfo?
Henry Schuck is the co-founder and CEO of ZoomInfo.
What industries use ZoomInfo?
ZoomInfo serves sales, marketing, and recruiting teams in industries like software, manufacturing, business services, and healthcare.
How much does ZoomInfo cost?
ZoomInfo is free to start with consumption credits based on usage. ZoomInfo has a permanent free plan that requires no credit card, and a free trial gives access to the full platform.
What products does ZoomInfo offer?
ZoomInfo offers GTM Workspace for sellers, GTM Studio for marketers, RevOps, and GTM engineers, and GTM.AI for developers and builders.
Does ZoomInfo integrate with Salesforce and AI agents like Claude?
Yes. ZoomInfo integrates natively with Salesforce, HubSpot, and Microsoft Dynamics 365, and has over 120 integrations. The ZoomInfo MCP server connects Claude, ChatGPT, and custom agents to verified ZoomInfo data and is listed in the Claude directory.