ISTARI
VC Fund
London, United Kingdom
ISTARI is a VC fund in London focused on Cyber Security and Security. Established in 2020 by Temasek, an investment company headquartered in Singapore, ISTARI has a unique model. It is an advisory practice, investor, and educator through its Academy. ISTARI harnesses the collective power of the world’s leading cybersecurity companies, experts, and knowledge to work alongside clients on their journey to becomingdigitally resilient. The ISTARI Collective includes Sygnia, BlueVoyant, Ensign InfoSecurity (EIS), Claroty, Armis, Prevalent AI, and Sonrai Security. Headquartered in London, ISTARI has a global presence in the United States, Europe, and Singapore.
- Total investments:
- 7
- Last investment:
- Lead investor:
- 57%
Last updated:
For AI agents: llms.txt
Industries ISTARI invests in
Stages ISTARI invests in
Countries ISTARI invests in
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Amit Jasuja
|
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Abel Archundia
|
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JD Sherry
|
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Mark Malecki
|
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Pierre Noel
|
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| See all 7 contacts → | |||
Investment Focus
Industry
- Cyber Security 3 (43%)
- Security 2 (29%)
- Software 2 (29%)
- Information Technology 2 (29%)
- Computer 1 (14%)
Stage
- Series E 2 (29%)
- Series B 1 (14%)
- Series C 1 (14%)
- Series D 1 (14%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
|
Amit Jasuja
Chief Portfolio Officer
|
Chief Portfolio Officer | Total investments: 2 | Find email | |
|
Abel Archundia
Managing Director
|
Managing Director | Total investments: 0 | Find email | |
|
JD Sherry
Client Partner
|
Client Partner | Total investments: 0 | Find email | |
|
Mark Malecki
Chief Technology Officer
|
Chief Technology Officer | Total investments: 1 | Find email | |
|
Pierre Noel
Senior Advisor; Managing Director, EMEA
|
Senior Advisor; Managing Director, EMEA | Total investments: 0 | Find email | |
| See all 7 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
BlueVoyant
|
BlueVoyant is a cybersecurity company that enables cybersecurity defense and protection through technology and tailored services. The company provides advanced cyber threat intelligence managed security services and proactive professional services with forensic capabilities for incident response and remediation. They help large enterprises withimpactful intelligence and offer small and medium enterprises the same kind of software and level of services that large enterprises enjoy all from a world-class team of experts that would be challenging to amass directly.BlueVoyant offers increased visibility, professional insights, and targeted responsiveness. The company was founded in 2017 and is headquartered in New York, NY, USA. | $140M / Series E / Nov 29, 2023 | |
Axio
|
Axio helps organizations understand cyber exposure, calculate risk, and make data-driven decisions that improve their security and risk posture and accelerate the maturity of an organization’s capability to manage cyber risk. A business can quantify cyber risk and measure your cyber resiliency by determining the effectiveness and cost and of yourcyber risk capabilities, assessing if they are reasonable and optimal for an organization, and determining what other controls (not just technologies) need to be put in place. Axio provides all stakeholders with a common framework to proactively manage cyber risk, in terms that the entire organization can understand. CISOs can now explain what they do, how they do it, and what it means with regards to overall cyber risk for the business. Risk officers can optimize their insurance portfolio and invest in the specific types of cyber insurance and limits that protect their business. Board members and executive leadership can now be confident in their cyber strategy and their ability to achieve and sustain resiliency. Axio delivers cyber resilience optimization. | $23M / Series B / Aug 04, 2022 | |
|
Axio
|
Axio helps organizations understand cyber exposure, calculate risk, and make data-driven decisions that improve their security and risk posture and accelerate the maturity of an organization’s capability to manage cyber risk. A business can quantify cyber risk and measure your cyber resiliency by determining the effectiveness and cost and of yourcyber risk capabilities, assessing if they are reasonable and optimal for an organization, and determining what other controls (not just technologies) need to be put in place. Axio provides all stakeholders with a common framework to proactively manage cyber risk, in terms that the entire organization can understand. CISOs can now explain what they do, how they do it, and what it means with regards to overall cyber risk for the business. Risk officers can optimize their insurance portfolio and invest in the specific types of cyber insurance and limits that protect their business. Board members and executive leadership can now be confident in their cyber strategy and their ability to achieve and sustain resiliency. Axio delivers cyber resilience optimization. | $23M / Series B / Aug 04, 2022 | |
|
Axio
|
Axio helps organizations understand cyber exposure, calculate risk, and make data-driven decisions that improve their security and risk posture and accelerate the maturity of an organization’s capability to manage cyber risk. A business can quantify cyber risk and measure your cyber resiliency by determining the effectiveness and cost and of yourcyber risk capabilities, assessing if they are reasonable and optimal for an organization, and determining what other controls (not just technologies) need to be put in place. Axio provides all stakeholders with a common framework to proactively manage cyber risk, in terms that the entire organization can understand. CISOs can now explain what they do, how they do it, and what it means with regards to overall cyber risk for the business. Risk officers can optimize their insurance portfolio and invest in the specific types of cyber insurance and limits that protect their business. Board members and executive leadership can now be confident in their cyber strategy and their ability to achieve and sustain resiliency. Axio delivers cyber resilience optimization. | $23M / Series B / Aug 04, 2022 | |
|
BlueVoyant
|
BlueVoyant is a cybersecurity company that enables cybersecurity defense and protection through technology and tailored services. The company provides advanced cyber threat intelligence managed security services and proactive professional services with forensic capabilities for incident response and remediation. They help large enterprises withimpactful intelligence and offer small and medium enterprises the same kind of software and level of services that large enterprises enjoy all from a world-class team of experts that would be challenging to amass directly.BlueVoyant offers increased visibility, professional insights, and targeted responsiveness. The company was founded in 2017 and is headquartered in New York, NY, USA. | $250M / Series D / Feb 23, 2022 | |
Claroty
|
Claroty is a cybersecurity company that develops a platform to secure cyber-physical systems and connected operational technology across industrial, healthcare, commercial, and public sector environments. Its platform offers capabilities for asset inventory, exposure and risk management, network protection, secure access controls, and continuousthreat detection to help organizations identify and prioritize vulnerabilities and anomalous activity. Claroty products are designed for deployment both in the cloud through its xDome offering and on-premises with solutions like continuous monitoring tools. It integrates with existing security infrastructure and provides contextualized visibility into devices and network behavior to support risk reduction and operational continuity. | $400M / Series E / Dec 08, 2021 | |
Sonrai Security
|
Sonrai Security delivers an enterprise security platform for AWS, Azure, Google Cloud, and Kubernetes. The Sonrai Dig platform is built on a sophisticated graph that identifies and monitors every possible relationship between identities and data that exists inside an organization’s public cloud. Dig’s Governance Automation Engine automatesworkflow, remediation, and prevention capabilities across cloud and security teams to ensure end-to-end security. | $50M / Series C / Oct 26, 2021 |
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FAQ
What does ISTARI invest in?
ISTARI invests primarily in Cyber Security, Security and Software startups, most often at Series E and Series B stage. Most of the 7 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 ISTARI?
Public channels for ISTARI 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 ISTARI?
The team at ISTARI includes Amit Jasuja (Chief Portfolio Officer), Abel Archundia (Managing Director) and JD Sherry (Client Partner), among 7 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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