Measurement

What is Intent Data?

B2B marketing definition, context, and 42 Agency's operator take.

Last updated: April 23, 2026

The short answer

Intent data is behavioral data that signals an account is researching a product category — used to prioritize outreach and target ads. Comes in first-party (your own data) and third-party (vendor-aggregated) forms.

Definition

Intent data captures signals that a buying committee at an account is actively researching solutions. Typical sources:

• First-party intent — website visits, content engagement, product usage, form activity on your own properties
• Third-party intent — topic consumption across a publisher network, aggregated by providers like Bombora, 6sense, or G2
• Technographic change — tech stack additions, job postings, vendor listings

The data is used three ways: to prioritize SDR outreach, to build intent-weighted ad audiences, and to surface accounts for ABM plays that weren't previously on the target list.

Why it matters

Intent data is the difference between marketing to everyone in the ICP and marketing to the slice of the ICP that's actually in-market right now. The rest of the ICP list isn't buying this quarter regardless of messaging — working the intent slice compresses cycles and improves ROI on outbound effort.

The hard part isn't getting intent data. It's building the routing that turns intent into action — without that, the signals sit in a dashboard and nobody works them.

42's take

Most teams overpay for third-party intent before they've fully instrumented first-party. First-party intent from your own website, content hub, and product is almost always higher-quality than aggregated topic data — because the account has actually engaged with you, not just researched the category.

Our sequence: first-party first (visitor ID, engagement scoring, repeat-visit alerts), then third-party layered on top once you're outgrowing in-market coverage. Third-party intent vendors oversell accuracy. Treat it as a tiebreaker input to prioritization, not gospel.

Frequently asked questions

What is the difference between first-party and third-party intent data?

First-party intent comes from accounts engaging with your own properties (site, content, product). Third-party intent is aggregated by vendors like Bombora or 6sense from topic consumption across a publisher network. First-party is higher-signal but narrower; third-party has broader reach but more noise.

How do you operationalize intent data?

Three routes: (1) SDR prioritization — route high-intent accounts to outbound queues, (2) ad targeting — build intent-weighted matched audiences on LinkedIn and Meta, (3) account list expansion — surface in-market accounts that weren't on the target list. Without routing, intent data just fills dashboards.

Is intent data worth the cost?

For most B2B companies under $50M ARR, first-party intent is enough. Third-party intent providers justify their cost once you've saturated first-party coverage and need broader in-market visibility across the target account list.