Ten Eleven Ventures

Ten Eleven Ventures is a cybersecurity-focused, global venture capital firm that backs cybersecurity companies across stages worldwide, addressing digital security needs. The firm identifies, funds, and helps grow top cybersecurity businesses by leveraging its team, network, and experience. Since its founding, it has raised over $1 billion and completed around 40 cybersecurity investments, including KnowBe4, Darktrace, Twistlock, Verodin, Cylance, and Ping Identity.

Ben Charlson

Associate

Kaiti Delaney

Principal

Andrew J Doll

Partner

Dixon Doll, Jr.

Investor

Alex Doll

Managing Partner

Brian Draves

Partner

Mark Hatfield

General Partner

Katherine Lohr-Valdez

Vice President of Finance

Dave Palmer

General Partner

David Palmer

General Partner

Past deals in Penetration Testing

VulnCheck

Series A in 2025
VulnCheck is a cyber threat intelligence platform designed to assist organizations in staying ahead of potential cyber threats. The company's platform leverages vulnerability intelligence to predict likely avenues of attack swiftly and accurately. By prioritizing vulnerabilities based on current threat landscapes, VulnCheck enables businesses to act promptly and effectively before an attack occurs.

HiddenLayer

Series A in 2023
HiddenLayer provides security solutions for machine learning systems and the data that power them. The company offers threat modeling, ML risk assessment training, and red team assessment services, as well as model scanning and detection and response implementation for ML pipelines. Its platform analyzes model interactions to identify malicious activity without requiring prior knowledge of a user's AI model or sensitive training data, helping organizations detect and protect against threats to algorithms, models, and data throughout AI deployments.

Interpres Security

Seed Round in 2022
Interpres Security optimizes corporate cybersecurity by offering a comprehensive platform that continuously analyzes and improves an organization's detection and mitigation capabilities. It provides automated security engineering directives, enabling businesses to effectively manage their defense surface.

HiddenLayer

Seed Round in 2022
HiddenLayer provides security solutions for machine learning systems and the data that power them. The company offers threat modeling, ML risk assessment training, and red team assessment services, as well as model scanning and detection and response implementation for ML pipelines. Its platform analyzes model interactions to identify malicious activity without requiring prior knowledge of a user's AI model or sensitive training data, helping organizations detect and protect against threats to algorithms, models, and data throughout AI deployments.

NetSPI

Private Equity Round in 2021
NetSPI is a provider of enterprise penetration testing and attack surface management services, aimed at enhancing cybersecurity for various industries, including banking, healthcare, and cloud services. The company specializes in conducting in-depth manual penetration testing across applications, networks, and cloud environments, helping organizations identify, mitigate, and prevent potential threats. By utilizing adaptable processes and trusted automation, NetSPI delivers a comprehensive suite of offensive security solutions that includes attack surface management, penetration testing as a service, and breach and attack simulation. Its focus on transformative, technology-enabled services positions NetSPI as a leader in the cybersecurity testing industry.

OffSec

Private Equity Round in 2018
OffSec is a cybersecurity training and education company focused on continuous professional and workforce development for security practitioners. It provides practical hands-on training, certification programs, virtual labs, and open-source projects to help individuals build offensive security skills, advance their careers, and better protect organizations. The company operates in a community-driven model and supports Kali Linux, a leading operating system for penetration testing and network security assessments.

BlackHorse Solutions

Venture Round in 2017
BlackHorse Solutions, Inc. is a cybersecurity company based in Herndon, Virginia, specializing in providing advanced cyber solutions to national security and critical business sectors. Founded in 2008, the company offers a range of services including certification training programs in both passive and advanced cyber tradecraft, and emphasizes expertise in publicly available information. BlackHorse Solutions delivers full-spectrum cyber capabilities, data insights, and technology development solutions designed to help organizations safeguard their confidential information. Its diverse customer base includes intelligence agencies, federal, state, and local governments, as well as commercial and international entities, reflecting the company's broad impact in the cybersecurity field.
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