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Ten Eleven

Actively deploying

Burlingame · Pre-Seed–Late Stage · 16 people tracked

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Investment thesis

Ten Eleven specializes exclusively in cybersecurity investments, partnering with entrepreneurs who are building transformative security technologies. The firm leverages its team's hands-on experience and rare industry connections to provide high-value support beyond capital, helping security entrepreneurs overcome unique sector challenges and scale breakthrough technologies to market.

Invests inCybersecurityBurlingame

Source: firm website, verified Jul 20, 2026.

Stage
Pre-Seed–Late Stage
HQ
Burlingame, US
Founded
2014
Tracked investments
64

Team · 16 people

from the firm's website
Alex Doll· Founder & Managing Partner

Co-founder of Ten Eleven Ventures; an industry insider and cybersecurity entrepreneur with deep experience in the security sector.

Karine Mellata· Co-founder & CEO
Mark Hatfield· Founder & Partner

Co-founder of Ten Eleven Ventures; an industry insider and cybersecurity entrepreneur with deep experience in the security sector.

Michael Lin· Co-founder & CTO
Brian Draves· Partner & COO
Dave Palmer· Partner
Grace Cassy· Partner & Executive Chair of Security Trust and Resilience Network
Megan Dubofsky· Partner & CMO
Scott Lundgren· Partner & CTO
Kaiti Delaney· Principal
Ben Charlson· Senior Associate
Dani Andrade· Director of Events
Hallie Larson· Controller
Hattie Egan-Young· Vice President of Marketing
Sid Subramanian· Senior Associate

What they invest in

from 1 of 64 portfolio companies

AI & Machine Learning ×1Cybersecurity ×1Enterprise Software ×1

HQs:United States×3

Investments · showing 60 of 64

founders shown can be your intro path
Aembit
Anchorage Digital
Aura
Axis Security
Barracuda
Blackbird Ai
Blackhorse
Blueflag Security
Blumira
Cado Security
Corsha
Cybergrx
Cylance
Cyware
Darkhive
Darktrace
Device Authority
Digital Shadows
Eclypsium
Feedzai
Fig

Finds and fixes broken security flows across entire SecOps infrastructure.

Fivecast
Fleet
Furl
Geordiegeordie.ai

Geordie provides visibility and governance for autonomous AI agents through continuous discovery, posture management, behavioral observability, risk analysis, and real-time remediation controls. The platform targets enterprise organizations deploying agentic AI technologies across cloud, code, endpoint, and SaaS environments.

AI & Machine LearningCybersecurityEnterprise Software

Gosecure Powered By Countertack
Guardare
Harmonic
Hexadite
Hiddenlayer
Hypernative
Immersive
Immuta
Ionic Security
Iqm
Jask
Jazz

Protects sensitive data for security-conscious companies with a data loss prevention solution that understands intent.

Kasada
Knowbe4
Netspi
Noetic
Offsec
Ontic
Optiv
Ordr
Partner Loginfundpanel.io
Ping Identity
Point Wild
Red Access
Reliaquest
Revelock
Ripsim
Saviynt
Semperis
Silent Push
Sonrai Security
Strivacity
Twine
Twistlock
Variance

Provides an agentic AI platform that autonomously executes fraud, risk, compliance, and KYC/AML workflows for large enterprises.

Board seats · per SEC filings · 4

what is this? ⓘ
Fleet Device Management Inc.SEC filing

$27.9M raise · filed Jul 2025 · via Mark Hatfield

HyperNative Inc.SEC filing

$41M raise · filed Jun 2025 · via Mark Hatfield

Darkhive Inc.SEC filing

$21M raise · filed Sep 2024 · via Mark Hatfield

Aembit, Inc.SEC filing

$25M raise · filed Jul 2024 · via Mark Hatfield

Inferred from directors named on each company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Frequently asked questions

What stage does Ten Eleven invest at?
Ten Eleven invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
What sectors does Ten Eleven focus on?
Ten Eleven focuses on Cybersecurity.
Where is Ten Eleven located?
Ten Eleven is headquartered in Burlingame, US.

Images

Ten Eleven photoTen Eleven photoTen Eleven photo

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