SYN Ventures
VC Fund
West Palm Beach, United States
SYN Ventures is a venture capital firm that invests in disruptive, transformational solutions that reduce technology risk. Their operating experience provides them with a unique insight into the market, technology, and the issues that founders encounter.
- Total investments:
- 63
- Last investment:
- Lead investor:
- 71%
- Last fund:
Last updated:
For AI agents: llms.txt
Industries SYN Ventures invests in
Stages SYN Ventures invests in
Countries SYN Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $2.5M–$13M
- Series A
- $8M–$45M
- Series B
- $10M–$70M
Investment Focus
Industry
- Cyber Security 26 (41%)
- Software 18 (29%)
- Information Technology 14 (22%)
- Network Security 10 (16%)
- Security 7 (11%)
Stage
- Series A 27 (43%)
- Seed 14 (22%)
- Series B 7 (11%)
- Series C 3 (5%)
- Venture - Series Unknown 3 (5%)
Country
- United States 32 (51%)
- Israel 5 (8%)
- France 1 (2%)
- Australia 1 (2%)
- Singapore 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Glenn Chisholm
Operating Partner
|
Operating Partner | Total investments: 2 | Find email | |
Patrick Heim
Managing Partner
|
Managing Partner | Total investments: 16 | Find email | |
Tim McKnight
Operating Partner
|
Operating Partner | Total investments: 2 | Find email | |
Alex Tosheff
Venture Partner
|
Venture Partner | Total investments: 1 | Find email | |
Christopher Key
Tech Partner
|
Tech Partner | Total investments: 1 | Find email | |
| See all 8 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Balance Theory
|
Balance Theory provides a knowledge sharing and collaboration platform purpose-built for cybersecurity. | $19M / Series A / Jul 31, 2026 | |
Arcade.dev
|
Arcade.dev is an AI tool-calling platform that enables users to connect AI with various integrations, allowing it to act on their behalf through authenticated tools, facilitating tasks such as managing emails, files, calendars, and APIs, while providing pre-built connectors and a custom SDK for users to create their own assistants. The platformsupports seamless interactions between AI and existing workflows, streamlining processes for sales teams and sales development representatives, enhancing productivity by automating routine tasks, and simplifying the management of multiple applications in one environment. Additionally, Arcade.dev offers comprehensive documentation and support to assist users in maximizing the functionality of their AI integrations. | $60M / Series A / Jun 12, 2026 | |
Nullify
|
Using open-source tools, vulnerability databases and large language models, Nullify gives developers actionable findings and fixes for security issues it finds in their workflows. | $12.5M / Seed / Feb 05, 2026 | |
Helmet Security
|
Helmet Security builds the future of AI security. Helmet Security engages in making agentic workflows safe for enterprise. | $9M / Seed / Dec 04, 2025 | |
NetFoundry
|
NetFoundry provides a software-defined networking platform focused on zero trust architecture. Its solutions enable organizations to create secure, microsegmented overlay networks, known as AppNets, that operate independently of traditional network infrastructure. The platform includes components such as Ziti Fabric for virtual overlays, Ziti Edgefor endpoint connectivity, and Ziti Console for network orchestration. NetFoundry offers deployment options across cloud, on-premise, and hybrid environments, supporting integration with major cloud providers like AWS, Azure, and Google Cloud. Developers can embed zero trust networking directly into applications using available SDKs, facilitating secure communication for various use cases, including DevOps, IIoT, and remote management. The platform emphasizes identity-based access controls, end-to-end encryption, and the elimination of inbound firewall ports to reduce attack surfaces.oud administrators, container orchestration engineers, DevOps, DevSecOps, network admins, etc. | $15M / Series A / Nov 24, 2025 | |
RegScale
|
RegScale's API-centric approach automates the collection, compilation, and reporting of data related to an organization's compliance obligations. This approach ensures that companies are continually compliant, reducing risk and cost while simultaneously increasing productivity. It also includes frameworks for industry-specific regulationsfor the energy and financial services industries, such as the North American Electric Reliability Corporation and critical infrastructure protection.Founded in 2021, RegScale is based in Mclean, Virginia, United States. | $30M / Series B / Sep 17, 2025 | |
Terra Security
|
Terra Security is the first agentic-AI platform built for web application penetration testing. Offered as a managed service, Terra deploys a swarm of fine-tuned AI agents, controlled by a human-in-the-loop mechanism, to simulate real adversaries at scale. The platform delivers accurate, context-aware results based on each organization’s uniquebusiness logic.By combining the creativity of ethical hackers with the scalability of Agentic-AI, Terra replaces outdated, point-in-time pentests with a continuous, proactive approach built for today’s dynamic web environments. | $30M / Series A / Sep 15, 2025 | |
iCOUNTER
|
iCOUNTER has developed an intelligence capability that is solely focused on thwarting specific attacks. | $30M / Series A / Jul 16, 2025 | |
Crash Override
|
Crash Override is a SaaS provider company that provides a list of the things to do. | $28M / Seed / Jul 15, 2025 | |
BreachRx
|
The BreachRx incident management platform enables customers to leverage our expert library of regulatory best practices, actionable, automatically tailored incident response plans, and streamlined incident and breach response processes that reinforce legal privilege. Organizations can then get proactive with privacy and cybersecurity to prepare,respond and recover faster—saving millions of dollars in costs, time, and reputational damage. | $15M / Series A / May 19, 2025 | |
| See all 63 investments → | |||
Co-Investors
Rally Ventures
6 deals together
Ballistic Ventures
5 deals together
ClearSky
5 deals together
Bessemer Venture Partners
4 deals together
Blackstone Innovations Investments
4 deals together
LAMA Partners (fka FXP)
4 deals together
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FAQ
What does SYN Ventures invest in?
SYN Ventures invests primarily in Cyber Security, Software and Information Technology startups, most often at Series A and Seed stage. Most of the 63 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is SYN Ventures's check size?
SYN Ventures typically joins rounds of $2.5M–$13M at Seed, $8M–$45M at Series A and $10M–$70M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds SYN Ventures participates in.
How do I contact SYN Ventures?
Public channels for SYN Ventures include LinkedIn 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.
Who are the partners at SYN Ventures?
The team at SYN Ventures includes Glenn Chisholm (Operating Partner), Patrick Heim (Managing Partner) and Tim McKnight (Operating Partner), among 8 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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