GreatHorn vs Tessian: Email Security Comparison (2026)
An independent side-by-side comparison of GreatHorn and Tessian for email security buyers — pricing, features, integrations, and how often each is cited by major AI engines.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask email security questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
Feature data is being indexed.
- ✓AI-powered email threat detection
- ✓Prevent data loss over email
- ✓Integrated email security solutions
- ✓Streamline security analyst workflows
When to choose GreatHorn
Choose GreatHorn if your team prioritizes its strengths over Tessian's. Full guidance populates as GreatHorn's feature data is indexed.
When to choose Tessian
Choose Tessian if your team prioritizes its strengths over GreatHorn's. Full guidance populates as Tessian's feature data is indexed.
AI visibility profiles
Is one of these your brand?
Get the full report by email: every email security buyer question we ask, which engines name you, and who gets named instead.
greathorn.com
tessian.com