B2B Company & Contact Data API’s
You build innovative applications. Now fill them with the smartest B2B data.
When your products run on clean, trusted B2B data, everything works better — from scoring and routing to customer experiences. Demandbase APIs plug into your workflows to deliver fast, reliable company and contact intelligence. Whether you’re enriching records, powering app features, or cleaning up messy data, our APIs provide structured, ready-to-use insights without the heavy lifting. Just the right information, exactly when you need it.
What you can do with our APIs
Look up companies with serious detail
Search across millions of businesses using filters like domain, name, size, industry, and revenue. Get back rich profiles — firmographics, tech installs, competitors, and corporate family info — ready to drop into your workflows.
Find real, verified contacts
Zero in on the people you’re trying to reach. Search by name, title, function, seniority, or company and get verified business emails, role details, and quality grades so you always know who’s who.
Enrich your records automatically
Add 80+ data points to company or contact records in your CRM, MAP, data warehouse, or product. Everything comes back normalized and consistent, so it plays nicely with whatever you’re building.
Clean up messy or incomplete data
Pass in imperfect inputs and let our matching logic figure out the right company or contact. You’ll get confidence scores, additional match options, and standardized IDs you can trust.
Keep tabs on important account news
Pull real-time signals for events like M&A activity, leadership changes, funding rounds, layoffs, and more — grouped into GTM-friendly categories.
Stay up to date with change alerts
Subscribe to updates and get notified when something important changes at a company or for a contact — from org updates to executive moves.
Why choose Demandbase for API integration?
- Demandbase has the smartest B2B data and intelligence, hands down.
- Our REST-based APIs are easy to use and customize.
- Our experienced, responsive team — combined with detailed documentation — ensure rapid and continued API integration success.
- You receive world-class tech support.
- We operate as a true API solutions partner — not a data vendor.
Ready to explore what’s possible?
Get personalized guidance on how Demandbase data can support your goals.
We have updated our Privacy Notice. Please click here for details.