Zach Sivertson

| Cyber Security | Venture Capital | Product Management

📍 United States🔄 Updated September 2026💼 11 investments📅 6 years investing🗓 Last invested Sep 2025
VC🌍 United StatesInvested this year
11
Total investments
5
Early stage
5
Mid stage
0
Late stage
6y
Years active

Portfolio

10 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member / Investor
Sep 2025
WideField Security helps organizations secure identities across SaaS, cloud, and on-premises environments—without slowing business down. Today, most security teams struggle to keep up with a sprawling landscape of user accounts, machine identities, credentials, and delegated permissions. Attackers know this and increasingly target identities in use: sessions, tokens, and grants that evade traditional controls. WideField delivers deep visibility and defense across the entire identity lifecycle—at rest, in motion, and in use. Our platform continuously monitors how identities behave, correlates signals across systems, and detects anomalies that indicate compromise. When threats emerge, WideField empowers teams to respond rapidly with context-rich detections and workflows that remediate risk without burdening end users. Key Capabilities: - Session Intelligence: Continuous tracking of active sessions and grants to uncover misuse, hijacking, and abuse in real time. - Unified Identity Graph: Correlate identities across directories, SaaS, cloud, and federated systems to build a single source of truth. - Anomaly Detection: Spot suspicious behavior and policy violations using advanced analytics and machine learning. - Actionable Response: Accelerate investigations with rich context, prebuilt remediation actions, and integrations into existing security workflows. Why WideField? As enterprises embrace hybrid work and AI-driven automation, identity has become the new perimeter. But identity security can’t succeed if it relies only on static controls or burdens users with friction. WideField makes it possible to protect what matters most—without compromising agility. From fast-growing startups to large enterprises, security teams trust WideField to: - Reduce identity risk and exposure - Improve detection of advanced threats - Simplify compliance and reporting Secure every identity. Understand every action. Stop threats before they spread.
Board Member / Investor
Aug 2025
TENEX is a cybersecurity company leveraging advanced artificial intelligence and human expertise to transform enterprise security. Backed by Andreessen Horowitz (a16z) and Shield Capital, TENEX’s flagship offering is a next-generation Managed Detection and Response (MDR) service, transforming how organizations detect and respond to threats. With deep expertise in Google and Microsoft security ecosystems and state-of-the-art AI capabilities, TENEX empowers enterprises to enhance threat detection, agility, and resilience while maximizing the value of their security investments.
Board Observer / Investor
Jan 2024
Bowtie enables organizations to modernize corporate security, delivering greater privacy, speed, and resiliency while improving the end user experience. Its core offerings, Bowtie Private Access and Bowtie Web Governance, create fast, direct connections between users and applications, without the middleman network. Delivered like other SASE platforms but without requiring the usage of Bowties network or infrastructure, we help protect companies from cyberattacks and data loss.
Board Observer / Investor
Sep 2023
PerfectScale is a team of innovative and passionate DevOps experts, product leaders, and software engineers on a mission to make it easy for organizations of any size to continuously optimize their Kubernetes ecosystem. Our solutions empower teams to make quick, data-driven decisions that continuously improve Kubernetes performance and availability, while bringing down costs. Also, we are now available on the AWS Marketplace!
Board Observer / Investor
Jul 2023
Phin provides social engineering simulation across all communication channels and delivers training to employees that actually changes their behavior. Our approach couples dynamic attack simulation with personalized, result-driven employee training. Collecting and feeding results back into Phin’s simulation engine automatically refines what employees are exposed to, inoculating employees against the latest threats they are facing.
Board Member / Investor
Dec 2022
Evo Security simplifies Identity and Access Management (IAM) for Managed Service Providers (MSPs), Managed Security Service Providers (MSSPs), and their SMB and mid-market clients. Our unified platform consolidates MFA, SSO, RADIUS, Help Desk Verification, and Privileged Access Management (PAM)—empowering technicians and end-users with seamless, secure access in one solution tailored for the channel. Were backed and advised by some of the leading minds in the MSP space and world-class institutional investors. Our focus is building a fantastic product to serve (who we believe to be) the unsung heroes of modern business - IT Service Providers - and their vast client base of small to medium businesses and enterprises. One agent. One dashboard. Total identity management. Built for MSPs.
Board Member / Investor
Feb 2022
alphaMountains mission is to build next-generation cybersecurity products and services to enhance malicious investigations and protect individuals on the Internet. We offer Enterprise data services and APIs for web content classification, site reputation and risk, and impersonation (typosquatting) detection.
Board Member / Investor
Feb 2021
GloveBox is a centralized mobile and web application allowing insurance policy holders to access their policy documents, pay a bill, initiate a claim and so much more regardless of which carrier their policies are written with. The goal of GloveBox is to enhance the customer experience for the insurance client while reducing service costs and increasing overhead for both agencies and carriers.
mid stageInsurance
Board Observer / Investor (Sold to Drone Deploy)
Aug 2020
StructionSite allows teams to easily capture jobsite progress through the use of standard photos, 360 photos and videos that are mapped to your floor plan. Give all teams access to your virtual jobsite and allow them to find what they need, when they need it, accessible from any computer or mobile device. Add notes, post an RFI, tag a team member, and communicate a field issue quickly, all with the context of images. Take your image search from 30 minutes to 30 seconds with AI-powered organization.
mid stageConstruction
Board Member / Investor
Jul 2020
Cyware helps enterprises transform security operations while breaking through silos for threat intelligence sharing, collaboration, and automated threat response. Its unique Cyber Fusion solutions enable lean security teams to proactively stop threats, connect the dots on security incidents, dramatically reduce response time, and reduce analyst burnout from repetitive tasks. Cyware improves security outcomes for enterprises, government agencies, and MSSPs, and provides threat intelligence sharing platforms for the majority of ISAC/ISAO information sharing communities globally.
Experience · 13 entries
All (13)
Investments (11)
Board (11)
2025
Board Member / Investor
Sep 2025
WideField Security helps organizations secure identities across SaaS, cloud, and on-premises environments—without slowing business down. Today, most security teams struggle to keep up with a sprawling landscape of user accounts, machine identities, credentials, and delegated permissions. Attackers know this and increasingly target identities in use: sessions, tokens, and grants that evade traditional controls. WideField delivers deep visibility and defense across the entire identity lifecycle—at rest, in motion, and in use. Our platform continuously monitors how identities behave, correlates signals across systems, and detects anomalies that indicate compromise. When threats emerge, WideField empowers teams to respond rapidly with context-rich detections and workflows that remediate risk without burdening end users. Key Capabilities: - Session Intelligence: Continuous tracking of active sessions and grants to uncover misuse, hijacking, and abuse in real time. - Unified Identity Graph: Correlate identities across directories, SaaS, cloud, and federated systems to build a single source of truth. - Anomaly Detection: Spot suspicious behavior and policy violations using advanced analytics and machine learning. - Actionable Response: Accelerate investigations with rich context, prebuilt remediation actions, and integrations into existing security workflows. Why WideField? As enterprises embrace hybrid work and AI-driven automation, identity has become the new perimeter. But identity security can’t succeed if it relies only on static controls or burdens users with friction. WideField makes it possible to protect what matters most—without compromising agility. From fast-growing startups to large enterprises, security teams trust WideField to: - Reduce identity risk and exposure - Improve detection of advanced threats - Simplify compliance and reporting Secure every identity. Understand every action. Stop threats before they spread.
Board Member / Investor
Aug 2025
TENEX is a cybersecurity company leveraging advanced artificial intelligence and human expertise to transform enterprise security. Backed by Andreessen Horowitz (a16z) and Shield Capital, TENEX’s flagship offering is a next-generation Managed Detection and Response (MDR) service, transforming how organizations detect and respond to threats. With deep expertise in Google and Microsoft security ecosystems and state-of-the-art AI capabilities, TENEX empowers enterprises to enhance threat detection, agility, and resilience while maximizing the value of their security investments.
2024
Managing Director
Jun 2024
Crosspoint Capital Partners is a private equity investment firm focused on the cybersecurity, privacy and infrastructure software markets. Crosspoint has assembled a group of highly successful operators, investors and sector experts to partner with foundational technology companies and drive differentiated returns. Crosspoint has offices in Menlo Park, CA and Boston, MA.
Board Observer / Investor
Jan 2024
Bowtie enables organizations to modernize corporate security, delivering greater privacy, speed, and resiliency while improving the end user experience. Its core offerings, Bowtie Private Access and Bowtie Web Governance, create fast, direct connections between users and applications, without the middleman network. Delivered like other SASE platforms but without requiring the usage of Bowties network or infrastructure, we help protect companies from cyberattacks and data loss.
2023
Board Observer / Investor
Sep 2023
PerfectScale is a team of innovative and passionate DevOps experts, product leaders, and software engineers on a mission to make it easy for organizations of any size to continuously optimize their Kubernetes ecosystem. Our solutions empower teams to make quick, data-driven decisions that continuously improve Kubernetes performance and availability, while bringing down costs. Also, we are now available on the AWS Marketplace!
Show all 13 entries ↓
Investment activity
2020–2025 · 11 investments
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