Tessian

tessian.com

computer & network security

tessian.com

England, United Kingdom

11-50 employees

25391000 revenue

LinkedIn Profile

About Tessian

cyber security, data loss prevention, information security, machine learning, artificial intelligence, spear phishing, enterprise software, saas, software, deep information technology, information technology, threat mitigation, anomaly-based detection, email security partnerships, threat detection, email security trust, legal, data exfiltration prevention, email security platform, ai threat detection

Tessian's Tech Stack

AI/ML

Decision Makers at Tessian

1 contact

Abhijit Manna

Engineering Manager

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29 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

HubSpot users typically run inbound-led sales motions. Products that integrate with HubSpot (email automation, CRM enrichment, ABM platforms) are natural fits.

Tessian's Position in the StackWho Database

• Tessian is 1 of 4,889 computer & network security companies tracked in StackWho.
• 4,875 computer & network security companies in our database have verified decision-maker emails (100% of the cohort).
• 47,721 companies in England are in the StackWho database.
• 2,072 computer & network security companies are in the 11-50 employee range (same size as Tessian).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated August 2026.

Frequently Asked Questions

What technology does Tessian use?

Tessian uses UltraDns, Gmail, Google Apps, Microsoft Office 365, WP Engine, Atlassian Cloud, and 23 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Tessian?

StackWho has verified email addresses for 1 decision maker at Tessian. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Tessian directly for sales, recruiting, or partnerships.

What industry is Tessian in?

Tessian operates in the computer & network security industry, headquartered in England, United Kingdom. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Tessian's contact data?

Yes. StackWho Pro members can export decision maker contact data for Tessian and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.