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Lead Onion

leadonion.ai

From $500/mo Free trial Web
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Spec score 7.8 #8 of 23 in Buyer Intent Data Software

What it is

Lead Onion is a web-based GTM intelligence platform for finding companies and sales prospects through buyer-intent data. It provides access to 209 million verified leads and companies, and brings intent information from more than 20 premium sources into one view. The company says it tracks buyer-intent signals across 24 sources in real time and links every in-market account to decision-makers with 99% verification. Prospect Search offers direct dials, validated emails, and more than 30 firmographic and engagement filters. Website Identification shows which companies and people visit a website and what they are researching. Leadflows can route verified contacts to cadences, workflows, or pipelines. Listed integrations include Salesforce, HubSpot, Microsoft Dynamics, LinkedIn Ads, Slack, and Zapier; Zapier can connect it to thousands of apps without code. The paid service starts at $500/mo, has no free plan, and offers a 7-day Intent Search trial with 50 free IQLs and no credit card required. It runs on the web.

Spec sheet

Integrations
Lead Onion lists Salesforce, HubSpot, Microsoft Dynamics, LinkedIn Ads, Slack and Zapier integrations.Read 30 Sep 2026 · leadonion.ai
Headquarters
Portstewart, Northern IrelandRead 28 Sep 2026 · leadonion.ai
Backups
Lead Onion states that it backs up its database four times per day.Read 30 Sep 2026 · leadonion.ai
Buyer verification
Lead Onion states that every in-market account is linked to decision-makers with 99% verification.Read 30 Sep 2026 · leadonion.ai
Contact search
Prospect Search includes direct dials, validated emails and more than 30 firmographic and engagement filters.Read 30 Sep 2026 · leadonion.ai
GTM intelligence platform
Lead Onion is an AI-powered GTM intelligence platform providing access to 209 million verified leads and companies.Read 30 Sep 2026 · leadonion.ai
Hosting security
Lead Onion says its platform is hosted in a UK data centre, protected by a firewall and encrypted in transit.Read 30 Sep 2026 · leadonion.ai
Intent coverage
Lead Onion tracks billions of buyer-intent signals across 24 sources in real time.Read 30 Sep 2026 · leadonion.ai
Intent qualified leads
Intent Search provides a 7-day free trial with 50 free IQLs and no credit card required.Read 30 Sep 2026 · leadonion.ai
Multi-source intent
The platform unifies intent data from more than 20 premium data sources into one view.Read 30 Sep 2026 · leadonion.ai
Penetration testing
The latest penetration test was performed in April 2025 by NCC Group, a CREST-certified tester.Read 30 Sep 2026 · leadonion.ai
Privacy compliance
The Trust Centre lists GDPR and CPRA compliance and ISO 27001 certification with 2026 status pending.Read 30 Sep 2026 · leadonion.ai
Sales automation
Leadflows route verified contacts automatically to cadences, workflows or pipelines.Read 30 Sep 2026 · leadonion.ai
US contact limitation
Person-based topic, competitor, event and website intent features are marked as using US-based contacts.Read 30 Sep 2026 · leadonion.ai
Website identification
Website Identification reveals companies and people visiting a website, including what they are researching.Read 30 Sep 2026 · leadonion.ai
Zapier connectivity
The Zapier integration connects Lead Onion to thousands of apps without code.Read 30 Sep 2026 · leadonion.ai

Plans and prices

Starter $500 a month $500 / month Read 30 Sep 2026 · leadonion.ai
Growth $1,750 a month $1,750 / month Read 30 Sep 2026 · leadonion.ai
Lead Onion Growth $2,000 a month $2,000 Per Month 100 Intent Triggers · 3000 Contact Reveals · 10 Users · Person Based Intent · Account Based Intent · Website Based Intent Read 30 Sep 2026 · leadonion.ai
Scale $3,000 a month $3,000 / month Read 30 Sep 2026 · leadonion.ai
Enterprise Priced on request POA / month Read 30 Sep 2026 · leadonion.ai

Every Lead Onion plan and price →

Strong points and limits

Strong points

  • Intent data unified from more than 20 premium sources
  • Prospect Search includes 30+ filters and validated emails
  • Website Identification shows visitors and their research interests
  • Leadflows routes verified contacts to sales workflows
  • Zapier connects to thousands of apps without code

Limits

  • No free plan
  • Starts at $500/mo
  • Person-based intent features use US-based contacts

Who it suits

It suits sales and GTM teams seeking intent-led prospect discovery, contact enrichment, and automated handoff to sales workflows. Teams relying on person-based topic, competitor, event, or website intent should note that these features use US-based contacts.

Verdict

Lead Onion combines intent research, contact search, and sales handoff in a web platform. Its trial is limited to Intent Search, while ongoing access is paid from $500/mo.

Where Specifiction places it

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