Double

Research leads, skip the Googling

None readiness

About

What is Double

Double runs bulk prospect research by searching the web and aggregating data from 10+ private sources, then answers specific questions about each lead — all without manual Googling. It's built for SDRs, BDRs, and founders who need to move through large lead lists quickly without hiring a research team. The standout capability is its ability to scrape job experience and education directly from LinkedIn profiles at scale, giving reps context that most enrichment tools skip. It also generates per-row AI copy, so you can produce personalized outreach lines alongside the research in the same workflow. Where it falls short: with no public API and UI-only access, Double doesn't slot cleanly into automated pipelines or multi-tool stacks without manual intervention.

Data & Discovery Creative

Capabilities

Key features

Account research

generates per-account briefings and dossiers

Native CRM integration

first-party connectors, no middleware required

AI capabilities

per-prospect AI research, AI-drafted personalised copy

No-code automation support

works with major iPaaS platforms

Our verdict

Vanderbuild take

Double is a solid account research tool for SDRs, BDRs, and early-stage founders who need to enrich and qualify large lead lists without building a data team — it does the unglamorous work of bulk web research and LinkedIn scraping in one place. On the agentic readiness front, there's no API and no MCP server, so you can't drive this from an agent or wire it into an automated orchestration layer without scraping the UI — that's a real ceiling if you're building toward agentic outbound. Pricing starts free (up to 200k characters/month) with usage-based tiers above that, so the risk to test is low, but costs will climb as your list volume grows. The integration surface is thin — LinkedIn is the only named connector, and native CRM pushes aren't confirmed — so plan on manual exports if your stack runs on Salesforce or HubSpot.

Mateusz Sekta

Founder, vanderbuild

The wedge

Agentic stack profile

API

Not public

No public programmatic access.

No public API. Not usable from an agent without scraping.

Agentic readiness

None

Not usable from an agent without scraping.

No public API. UI-only. Not usable from an agent without scraping, which we don't recommend.

Stack role

Researcher · Copywriter

Where this tool slots into an agentic pipeline.

Plays the role of Researcher + Copywriter in an agentic pipeline. Use it to generate per-account briefings and qualification dossiers; generate outreach copy, subject lines, and landing-page content.

Compare