# AllegisCyber

> AllegisCyber is a VC fund backing Software and Cyber Security. See 119 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: San Francisco, United States
- Total investments: 119
- Last investment: Oct 2025
- Lead investor: 27%
- Fund size: $199M
- Last fund: May 2019
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/allegiscyber/
- Website: http://allegiscyber.com/
- Facebook: https://www.facebook.com/AllegisCyber/

AllegisCyber is a VC fund in San Francisco focused on Software and Cyber Security. AllegisCyber invests in early-stage companies developing technology and software to serve emerging markets. It uses its integrated cybersecurity investment platform and a game-changing strategic partnership with innovative cybersecurity start-up studio DataTribe to give o entrepreneurs an unfair competitive advantage.

## Contacts

5 contacts available for AllegisCyber. Shizune tracks 16 team members at AllegisCyber. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/allegis-capital?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 20 | 17% |
| Cyber Security | 16 | 13% |
| Security | 15 | 13% |
| Network Security | 14 | 12% |
| Enterprise Software | 10 | 8% |

92 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 34 | 29% |
| Series A | 26 | 22% |
| Series C | 20 | 17% |
| Series D | 10 | 8% |
| Funding Round | 9 | 8% |

10 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 52 | 44% |
| United Kingdom | 2 | 2% |
| Canada | 1 | 1% |
| Israel | 1 | 1% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Bob Ackerman | Founder and Managing Director | 6 | https://shizune.co/investors/profile/bob-ackerman |
| Robert Ackerman | Founder & Managing Director | 17 | https://shizune.co/investors/profile/robert-ackerman |
| David DeWalt | Managing Director | 29 | https://shizune.co/investors/profile/dave-dewalt |
| David G. DeWalt | Managing Director | 0 | https://shizune.co/investors/profile/david-g-dewalt |
| Hossein Eslambolchi | Venture Partner | 4 | https://shizune.co/investors/profile/hossein-eslambolchi |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Conceal | NetAbstraction is a network engineering and cybersecurity firm intended to protect customer activities on the internet. | $26M | Series B | Oct 16, 2025 |  |
| Elisity | Elisity is an identity-based microsegmentation platform that simplifies Zero Trust security for modern enterprise networks. By leveraging existing switching infrastructure, it allows organizations to discover, classify, and secure all managed and unmanaged devices—including IT, OT, and IoT assets—without requiring new hardware or complex agents.The platform enforces granular access policies directly at the network edge, effectively preventing lateral movement and minimizing the attack surface. This innovative approach provides rapid time-to-value and scalable protection, ensuring that users and devices can only access the resources they explicitly need to function. | $45M | Series B | Apr 29, 2024 |  |
| Vicarius | Vicarius helps Security and IT teams protect their most critical apps and assets against software exploitation through vRx, a consolidated end-to-end vulnerability remediation platform that combines discovery, prioritization, and mitigation in a single platform. Backed by tier-one Silicon Valley investors, Vicarius was founded by security expertson a mission to provide problem-solving remediation solutions that proactively reduce risk wherever assets reside. Effortlessly find and eliminate threats while reducing the strain on internal security resources, freeing up personnel to focus on other mission-critical tasks without sacrificing security. Get started for free today or learn more at https://vicarius.ioVicarius was founded in 2016 by three entrepreneurs from the information-security industry and operates from headquarters in New York and Tel Aviv. | $30M | Series B | Jan 17, 2024 |  |
| Source Defense | In an industry focused on detection, Source Defense provides websites with the first ever prevention technology for attacks of third-party origin. We are the first ever SAAS platform that allows a site owner to set and enforce permissions, receive real-time alerts and monitor third-party vendors' behavior on their site. By removing thesecurity considerations from third-party integrations, we can save countless man-hours spent on tests and integrations, allowing sites to focus on generating revenues and new opportunities while keeping the site visitors safe and the site in high performance. | $27M | Series B | Apr 26, 2022 |  |
| Vicarius | Vicarius helps Security and IT teams protect their most critical apps and assets against software exploitation through vRx, a consolidated end-to-end vulnerability remediation platform that combines discovery, prioritization, and mitigation in a single platform. Backed by tier-one Silicon Valley investors, Vicarius was founded by security expertson a mission to provide problem-solving remediation solutions that proactively reduce risk wherever assets reside. Effortlessly find and eliminate threats while reducing the strain on internal security resources, freeing up personnel to focus on other mission-critical tasks without sacrificing security. Get started for free today or learn more at https://vicarius.ioVicarius was founded in 2016 by three entrepreneurs from the information-security industry and operates from headquarters in New York and Tel Aviv. | $24M | Series A | Feb 09, 2022 |  |
| Dragos | Dragos is an industrial cybersecurity company on a mission to safeguard civilization by protecting the world’s critical infrastructure. Dragos codifies the knowledge of our cybersecurity experts into an integrated software platform that provides customers critical visibility into ICS and OT networks so that threats are identified and can beaddressed before they become significant events. Our solutions protect organizations across a range of industries, including power and water utilities, energy, and manufacturing, and are optimized for emerging applications like the Industrial Internet of Things (IIOT). Dragos is privately held and headquartered in the Washington, DC area with a regional presence around the world, including Canada, Australia, New Zealand, Europe, and the Middle East. | $200M | Series D | Oct 28, 2021 |  |
| SkyHive | SkyHive is the developer of a SaaS platform that enables workforce reskilling and labor market intelligence. They provide quantum labour analytics services. They also optimizes human economies in real-time and provide customized workforce solutions. | $40M | Series B | Oct 20, 2021 |  |
| Elisity | Elisity is an identity-based microsegmentation platform that simplifies Zero Trust security for modern enterprise networks. By leveraging existing switching infrastructure, it allows organizations to discover, classify, and secure all managed and unmanaged devices—including IT, OT, and IoT assets—without requiring new hardware or complex agents.The platform enforces granular access policies directly at the network edge, effectively preventing lateral movement and minimizing the attack surface. This innovative approach provides rapid time-to-value and scalable protection, ensuring that users and devices can only access the resources they explicitly need to function. | $26M | Series A | Jun 15, 2021 |  |
| Conceal | NetAbstraction is a network engineering and cybersecurity firm intended to protect customer activities on the internet. | $9M | Series A | May 19, 2021 |  |
| Panaseer | Panaseer is the first Continuous Controls Monitoring platform for enterprise cybersecurity. Our platform shows you every asset, application, user and data set across your IT estate in real-time. This identifies gaps in controls coverage, aligns security with framework standards and substantiates regulatory compliance. Our automated reportssignificantly reduce reporting time and tailor insights to stakeholders at every level, enhancing decision-making from the boardroom to the analyst. These reports can also be mapped to the organisation’s structure, so you can prioritise risk based on impact to the business.Enterprise security leaders around the world trust our platform to help them make better security decisions. | $26.5M | Series B | May 11, 2021 |  |

10 of 119 investments shown.

## Co-investors
- [NightDragon](https://shizune.co/investors/profile/nightdragon-security) — VC Fund, 9 deals together
- [Kleiner Perkins](https://shizune.co/investors/profile/kleiner-perkins-caufield-byers) — VC Fund, 8 deals together
- [Cisco Investments](https://shizune.co/investors/profile/cisco-investments) — VC Fund, 7 deals together
- [Menlo Ventures](https://shizune.co/investors/profile/menlo-ventures) — VC Fund, 7 deals together
- [Evolution Equity Partners](https://shizune.co/investors/profile/evolution-equity-partners) — VC Fund, 6 deals together
- [Jerusalem Venture Partners (JVP)](https://shizune.co/investors/profile/jerusalem-venture-partners) — VC Fund, 6 deals together

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## FAQ

### What does AllegisCyber invest in?

AllegisCyber invests primarily in Software, Cyber Security and Security startups, most often at Series B and Series A stage. Most of the 119 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 AllegisCyber?

Public channels for AllegisCyber include LinkedIn, the website linked on this profile and Facebook. 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.

### Who are the partners at AllegisCyber?

The team at AllegisCyber includes Bob Ackerman (Founder and Managing Director), Robert Ackerman (Founder & Managing Director) and David DeWalt (Managing Director), among 16 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### 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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