Apollo.io vs Demandbase: pricing, features and which to choose

Apollo.io is a sales intelligence and go-to-market platform made by ZenLeads, Inc., doing business as Apollo.io. Founded in 2015, it released its first product in 2016 and says it reached $150 million in annual recurring revenue in May 2025. Apollo also reports more than 500,000 companies using the platform and more than 50,000 weekly active users in 2025. Its 2023 Series D raised $100 million at a reported $1.6 billion valuation. The product combines a business contact database with prospect search, enrichment, sequencing, calling, pipeline support, analytics, and AI features. That combination places Apollo closer to a sales operating system than a standalone lead database, serving founders, sales teams, marketers, and revenue operations groups.

Apollo’s workflow usually begins with finding people or companies through filters, then selecting records for enrichment, lists, sequences, or exports. Email campaigns are available on every account. Free users can connect Gmail, while paid users can connect Microsoft Office and other providers. Teams can create sequences, manage pipeline activity, record calls, prepare for conversations, and review AI-generated insights. The AI Assistant accepts natural-language requests, uses Apollo data and saved messaging context, and can find decision-makers, research accounts, build sequences, export lists, and report on performance. Scheduled agents can run some outbound tasks in the background. Permissions still govern available actions, and Apollo advises reviewing generated messages, matches, and credit estimates before execution.

Apollo’s main limitation is pricing and usage complexity: the final amount depends on seats, billing frequency, credits, add-ons, and selected features. Basic includes one mailbox, 250 daily emails, five team workflows, and 1,000 records per selection, while Professional raises several limits and adds AI and call features. Standard plans are for internal business use, so powering external products, sharing data with customers, or reselling it requires a separate agreement. Apollo competes with ZoomInfo, Cognism, Outreach, Salesloft, and HubSpot Sales Hub. It combines data and enrichment more closely than Outreach or Salesloft, and adds execution tools beyond ZoomInfo or Cognism. Choose Apollo if one team needs prospect intelligence, outbound execution, enrichment, and AI actions together.

Demandbase was founded in 2006 and is one of the original account-based marketing (ABM) vendors. It grew partly through acquisitions, including Engagio in 2020 and the InsideView data business in 2021, which gave it its own contact and company database. Demandbase says that database now covers more than 342 million contacts across 13 million companies. The flagship product is Demandbase One, sold as one platform for marketing, sales, advertising and data instead of separate modules. Its pitch in 2026 is agentic marketing: AI agents that plan and run campaigns, plus a headless setup that sends Demandbase data into the AI tools and CRMs teams already use.

Most customers start by defining an ideal customer profile and target account list. Demandbase identifies companies visiting their website, scores accounts on intent and engagement, and groups them into journey stages. Marketers then run display, video and social ads through Demandbase's own B2B demand-side platform, personalize website content by account, and hand engaged accounts to sales with alerts and account pages in Salesforce. Buying groups are a native object, so teams can see which roles at an account are active. Reporting ties ad impressions and site visits to pipeline. Demandbase does not split the product; a sales team that wants only intent data still buys Demandbase One.

The main drawbacks are cost, all-or-nothing packaging and the work needed before account scoring pays off. Reviewers also mention a dense interface and a learning curve for new admins. 6sense is the closest competitor, with a slightly lower Vendr median of about $62,000 and a stronger reputation for predictive buying stages. ZoomInfo is stronger on raw contact data, and RollWorks targets smaller teams with simpler ABM advertising. HubSpot Marketing Hub covers lighter account-based campaigns inside a CRM many teams already own. Demandbase fits enterprise B2B marketers who want data, ads and agents from one vendor; teams under a $50,000 budget should look at RollWorks or Mojo alone.