Alex Doll
Founder and Managing General Partner @ Ten Eleven Ventures
San Francisco, United States
Alex Doll is a Series A investor at Ten Eleven Ventures in San Francisco focused on Cyber Security and Software. Alex Doll is based out of Burlingame, California and is the Board of Directors of IQM Quantum Computers and also serve as Founder and Managing General Partner at Ten Eleven Ventures. Alex previously worked at Axis Security as a Board Member. Alex Doll attended the University of Pennsylvania.
- Total investments:
- 46
- Last investment:
- Lead investor:
- 43%
Last updated:
For AI agents: llms.txt
Industries Alex Doll invests in
Stages Alex Doll invests in
Countries Alex Doll invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Cyber Security 14 (30%)
- Software 13 (28%)
- Security 12 (26%)
- Network Security 11 (24%)
- Information Technology 8 (17%)
Stage
- Series A 12 (26%)
- Series B 11 (24%)
- Series C 10 (22%)
- Seed 4 (9%)
- Series D 3 (7%)
Country
- United States 19 (41%)
- Australia 2 (4%)
- Finland 1 (2%)
- United Kingdom 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| BlueFlag Security provides a multi-layered defense platform that combines identity security, open-source software risk management, and developer tool posture management. | $16.5M / Series A / Mar 23, 2026 | ||
| Eclypsium protects organizations from the foundation of their computing infrastructure upward, controlling the risk and stopping threats inside firmware of laptops, servers, and networking infrastructure. | $25M / Series C / Mar 19, 2026 | ||
| Kasada protects online, mobile, and API channels from system takeover, content scraping, DOS, and account takeover. Kasada challenges the economics of leveraging automation when abusing applications and APIs. | $20M / Dec 10, 2025 | ||
| IQM Quantum Computers builds and delivers superconducting full-stack quantum computer systems and cloud services designed for research institutions and developers. It offers several products including Spark, a compact 5-qubit system for academic use, Radiance, a scalable platform with configurations from 20 to 150 qubits, and Resonance, a managedcloud service that provides high-fidelity quantum processors with tools, algorithm libraries, and pulse-level programmability. The company develops hardware topologies such as Crystal and Star, which enhance connectivity and aim to support error-corrected, fault-tolerant computing through the integration of quantum error-correction codes. In addition, IQM provides developer-focused resources such as SDKs, multi-framework compatibility, and educational programs to facilitate quantum algorithm experimentation. | $320M / Series B / Sep 03, 2025 | ||
| Aura is an information technology company dedicated to creating a safer internet for everyone. People are doing more online than ever, but as our lives get more connected, it's hard to know what’s safe. Aura believes people should be able to live their digital lives with peace of mind. Its mission is to create a safer internet by makingcomprehensive digital security simple to understand and easy to use so everyone can stay safe online. | $140M / Series G / Mar 24, 2025 | ||
| Eclypsium protects organizations from the foundation of their computing infrastructure upward, controlling the risk and stopping threats inside firmware of laptops, servers, and networking infrastructure. | $45M / Series C / Jan 28, 2025 | ||
| RiPSIM Technologies has developed and patented the world's first, software-defined, end-to-end eSIM ecosystem that enables wireless service providers and 4G/5G private network operators to design, develop and deliver digital SIMs (aka “eSIMs”) at any time, in any quantity, for any device, and at a security level in the wireless industry. | $5M / Seed / Oct 29, 2024 | ||
| Harmonic Security provides comprehensive visibility into enterprises' AI service usage. | $17.5M / Series A / Oct 02, 2024 | ||
| BlueFlag Security provides a multi-layered defense platform that combines identity security, open-source software risk management, and developer tool posture management. | $11.5M / Seed / Mar 21, 2024 | ||
| Harmonic Security provides comprehensive visibility into enterprises' AI service usage. | $7M / Seed / Oct 19, 2023 | ||
| See all 46 investments → | |||
Co-Investors
About Ten Eleven Ventures
Ten Eleven Ventures is a cybersecurity-focused, global, stage agnostic investment firm. The firm finds, invests, and helps grow top cybersecurity companies addressing critical digital security needs, tapping its team, network, and experience to help build successful businesses. Since its founding, Ten Eleven Ventures has raised over $US 1 billionand made 40 cybersecurity investments across stages worldwide, including KnowBe4, Darktrace, Twistlock, Verodin, Cylance, and Ping Identity.
Ten Eleven Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Alex Doll
Founder and Managing General Partner
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Todd Weber
Operating Partner & CTO
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Brian Draves
Partner & COO
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Dave Palmer
Partner
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Dixon Doll
Investor
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FAQ
What does Alex Doll invest in?
Alex Doll invests primarily in Cyber Security, Software and Security startups, most often at Series A and Series B stage. Most of the 46 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Alex Doll?
Public channels for Alex Doll include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Alex Doll last invest?
The most recent investment recorded for Alex Doll closed in Mar 2026. Shizune tracks 46 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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