TENEX.AI Raises $250M Series B, Reaches Unicorn Status



 


[FINANCIAL]  AI Cybersecurity  ·  MDR / SOC  ·  Growth Equity  —  March 31, 2026 — Series B COMPLETED

TENEX.AI Raises $250M Series B — The AI-Native SOC Company Ranked #1 Fastest-Growing in Cybersecurity Hits Unicorn

From stealth to unicorn in under 18 months: Sarasota, FL-based TENEX.AI closes a $250 million Series B led by Crosspoint Capital Partners, valuing the company at over $1 billion. TENEX has redefined managed detection and response (MDR) with a platform that processes 100% of customer alert telemetry in under 60 seconds — and has grown 318% year-over-year to claim the #1 spot on IT-Harvest's 2026 Cyber 150 fastest-growing list.

 

DEAL SNAPSHOT

 

ROUND AMOUNT

$250 Million — Series B

COMPLETED

March 31, 2026

POST-MONEY VALUATION

>$1 Billion (Unicorn status achieved)

YOY REVENUE / HEADCOUNT GROWTH

318% — #1 Fastest-Growing Cybersecurity Co. (IT-Harvest 2026)

LEAD INVESTOR

Crosspoint Capital Partners

CONTRACTED REVENUE (PRIOR TO ROUND)

>$25 Million — Fortune 500 customers across Google/Microsoft ecosystems

 

THE PARTIES

 

LEAD INVESTOR

Crosspoint Capital Partners + Shield Capital + DTCP + Deepwork Capital + Florida Opportunity Fund

Crosspoint Capital Partners (Menlo Park, CA): cybersecurity-focused PE/growth equity firm managing ~$3.3B AUM; also led TENEX's $27M Series A. Managing Director Zach Sivertson leads investment. Shield Capital: defense/national security-focused VC. DTCP (global investment firm, >€3B AUM, offices in Europe, SF, Tel Aviv): supports TENEX's EMEA expansion. Deepwork Capital (Orlando-based early-stage VC). Florida Opportunity Fund: state-backed initiative via SSBCI 2.0. Prior investor: Andreessen Horowitz (a16z, led seed round). New appointment: Bashar Abouseido (former Charles Schwab CISO) joins as President.

COMPANY / RECIPIENT

TENEX.AI, Inc.

Sarasota, FL-based AI-native Security Operations Center (SOC) company. CEO Eric Foster. Founded 2024. Platform: AI-native managed detection and response (MDR) service that triages, investigates, hunts, and responds to threats in under 60 seconds, with 100% alert coverage. Key differentiator: built natively for AI — not retrofitted — with elite human analysts governing every decision and accountable for every outcome. Customers: enterprise across Google Cloud Security and Microsoft security ecosystems; Fortune 500 accounts. Metrics: >$25M in contracted revenue, 318% YoY headcount growth. Offices: Sarasota HQ, San Jose, Overland Park (KS), Phoenix; EMEA expansion planned.

 

DEAL OVERVIEW

TENEX.AI closed its $250 million Series B led by Crosspoint Capital Partners on March 31, 2026. The round — 9x the size of its $27M Series A from September 2025 — catapults TENEX past the $1 billion unicorn threshold in under 18 months from founding, one of the fastest unicorn ascents in cybersecurity history. The capital will fund global expansion (Europe, Middle East, Africa entry), scaling the human expert team behind the AI platform, and building out the physical headquarters in Sarasota (currently under construction at 2407 Bee Ridge Road).

TENEX's core product insight is a structural market fix: the MDR industry has historically been unable to scale because defenders scale with human headcount while attackers scale with automation. TENEX reverses this equation by using AI agents to handle 100% of alert volume at machine speed, with human analysts making every final decision — delivering outcomes that are both faster and more reliable than traditional MDR services. The platform covers 100% of customer alert telemetry (versus an industry norm of ~10%), reduces false positives by >95%, and responds to verified threats in under one minute.

 

"Everyone else is bolting AI onto the same services and platforms that have been failing enterprises for years. We started over — the only AI SOC company led by operators who've done this before, with founding engineers from the hyperscalers and leading AI labs."

— Eric Foster, Founder & CEO, TENEX.AI

INVESTORS

Lead (Series B): Crosspoint Capital Partners

Participating Investors: Shield Capital + DTCP + Deepwork Capital + Florida Opportunity Fund

Prior Lead (Series A & Seed): Crosspoint Capital Partners (Series A) + Andreessen Horowitz / a16z (Seed)

New Executive Appointment: Bashar Abouseido (former Charles Schwab CISO) appointed President