Jonathan Saacks
Managing Partner @ Genesis Partners
Jonathan Saacks is a Series A investor at Genesis Partners focused on Software and Artificial Intelligence. Jonathan (Jonny) joined Genesis Partners in 2005 and focuses on Internet and software investments. He is currently a board member at Innovid, PowerInbox, Eatwith, Any.DO, CommerceSciences and DaPulse. Jonny invested in, and was a board member at, Neebula, (acquired by ServiceNow in 2014) PrimeSense (acquired by Apple in 2013) and Yedda(acquired by AOL in 2007) until their successful acquisitions.Jonny is responsible for founding and managing The Junction, Israel’s leading early stage accelerator.Jonny started his career in venture capital in 2000 at Gemini Israel and joined Genesis at the end of 2004. Before venture capital, Jonny worked as Head of International business at UK-based Waterlogic. Prior to this, Jonny joined Barak International Telecom Corp as one of the first employees, helping the company grow to 400 employees and overseeing product management and marketing. Jonny served in the Intelligence Corps of the Israeli Defense Forces and holds the rank of Lieutenant Colonel.Jonny holds an MBA from Oxford University and a BA in Economics and Management from Tel Aviv University.
- Total investments:
- 28
- Last investment:
- Lead investor:
- 25%
Last updated:
For AI agents: llms.txt
Industries Jonathan Saacks invests in
Stages Jonathan Saacks invests in
Countries Jonathan Saacks invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
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| Socials |
Investment Focus
Industry
- Software 8 (29%)
- Artificial Intelligence 6 (21%)
- Information Technology 4 (14%)
- Enterprise Software 3 (11%)
- Apps 2 (7%)
Stage
- Series A 9 (32%)
- Seed 6 (21%)
- Series B 6 (21%)
- Series C 3 (11%)
- Pre-Seed 1 (4%)
Country
- Israel 8 (29%)
- United States 8 (29%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Zero Networks automates the development and enforcement of network access rules throughout an entire network. Its technology customizes who can access what in a network by learning how users and machines communicate. Zero Networks provides a bypass mechanism through a two-factor authentication wall on users’ mobile phones, ensuring unusual butlegitimate connections are not affected.With Zero Networks, there are no agents to deploy, no policies to configure, just airtight security for all users and machines. Zero Networks was founded in 2019 and is headquartered in Tel Aviv, Israel. | $55M / Series C / Jun 03, 2025 | ||
| 257 is a residential energy data platform.We build digital energy twins for every home in the US, and then enable use of these twins through analytics tools, APIs and marketing tools.Data will have a transformative impact on the electrification and operation of our ever-smarter homes. We equip partners in the solar, HVAC, retail electric, andutility sectors with the data they need to engage homeowners and accelerate electrification.257 was founded by Scott Rosenberg and Tal Chalozin, successful entrepreneurs with decades of experience in platform businesses, consumer marketing, and large-scale data sets.We are backed by awesome advisors, angels and VCs, and powered by a growing team of data and energy nerds.We’re also hiring. Hit us up! | $9.2M / Seed / Mar 18, 2025 | ||
| Astrix focuses on securing non-human identities (API keys, service accounts, Access tokens,…), and extending identity security to machines. Astrix offers insight into all non-human identities and automatically identifies and addresses excessive, unnecessary, and harmful access to avert supply chain threats and data breaches. The platform isdesigned to control the lifecycle of non-human identities, providing an agentless solution for organizations to manage these identities efficiently. | $45M / Series B / Dec 10, 2024 | ||
| Zero Networks automates the development and enforcement of network access rules throughout an entire network. Its technology customizes who can access what in a network by learning how users and machines communicate. Zero Networks provides a bypass mechanism through a two-factor authentication wall on users’ mobile phones, ensuring unusual butlegitimate connections are not affected.With Zero Networks, there are no agents to deploy, no policies to configure, just airtight security for all users and machines. Zero Networks was founded in 2019 and is headquartered in Tel Aviv, Israel. | $20M / Series B / Dec 13, 2023 | ||
| Astrix focuses on securing non-human identities (API keys, service accounts, Access tokens,…), and extending identity security to machines. Astrix offers insight into all non-human identities and automatically identifies and addresses excessive, unnecessary, and harmful access to avert supply chain threats and data breaches. The platform isdesigned to control the lifecycle of non-human identities, providing an agentless solution for organizations to manage these identities efficiently. | $25M / Series A / Jun 28, 2023 | ||
| Indoor Positioning, without the hassle (no beacons, no WiFi). Oriient offers hyper-accurate Indoor Positioning to any app, in any building, anywhere. All this, without installing anything in the building. We power smart retail, smart buildings, IoT and AR applications. | $11M / Series A / May 10, 2022 | ||
| 4M ANALYTICS is a subsurface-infrastructure geo-data company.We developed a mapping engine for utility and infrastructure construction project life cycle, for the pre planning and planning phase,an early comprehensive, mapping simulation tool before the project handed off to the design builder and constructor.Our technology is powered bydeep expertise in applying AI and analytics to satellite and aerial imagery analysis for the civil engineering domain. We provide complete, accurate and up to date subsurface infrastructure maps.Our maps are created remotely using AI, without the need for prior as-built data, anywhere in the world and at unprecedented scale and super low cost. | $11M / Series A / Aug 09, 2021 | ||
| Parametrix Insurance provides insurance policies covering third-party IT downtime events such as cloud outages, e-commerce downtime, payment failures, and other disruptions from SaaS, PaaS and IaaS platforms. The parametric policies we offer are simple: hassle-free claims and quick payments.We provide technology-reliant businesses with theliquidity and business continuity they need to quickly recover after downtime occurs.Powered by robust monitoring systems and precise risk aggregation capabilities, our solutions leverage deep actuarial and data science expertise to provide new and innovative insurance policies that meet the needs of modern businesses. | $17.5M / Series A / May 26, 2021 | ||
| Founded in 2020, Datomize enables data scientists to improve their machine learning model's performance dramatically. Recognizing that the primary constraints in developing high-performing ML model's are the shortage of high-quality data and the resource-intensive process of feature engineering, Datomize equips data scientists withlimitless data of exceptional quality and variety while automatically engineering a comprehensive set of advanced features. Datomize's platform augments original data with synthetic data of exceptional quality, automatically engineers features that optimize ML model performance, completes missing data, balances data with sufficient representation of any class to avoid biased models, and enables the simulation of innovative scenarios via rules-based data generation. | $6M / Seed / Jan 03, 2021 | ||
| Superwise.ai enables business and operational teams to take ownership of the health of their AI environments. Its AI Assurance platform includes AI performance management, bias detection, explainability and AI analytics capabilities. | $4.5M / Seed / Mar 10, 2020 | ||
| See all 28 investments → | |||
Co-Investors
About Genesis Partners
Genesis Partners has one of the strongest track records in the Israeli venture capital industry. Their investment team is comprised of venture professionals with extensive experience in venture capital, technology, operational management, and entrepreneurship. They focus on seed and early stage investments in the information and communicationtechnology (ICT) sectors.Genesis Partners was founded in 1996 by Eddy Shalev and Dr. Eyal Kishon, who were instrumental in establishing the Israeli venture capital community. Since its inception, Genesis Partners has established itself as one of Israel's leading venture capital funds with strong ties to the Israeli entrepreneurial community and the global technology industry.
Genesis Partners Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Eddy Shalev
Founding Partner
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Gary Gannot
General Partner
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Hadar Kiriati
CFO
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Irit Gold
Account Manager
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Jonathan Saacks
Managing Partner
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FAQ
What does Jonathan Saacks invest in?
Jonathan Saacks invests primarily in Software, Artificial Intelligence and Information Technology startups, most often at Series A and Seed stage. Most of the 28 investments tracked by Shizune back companies in Israel. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Jonathan Saacks?
Public channels for Jonathan Saacks 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 Jonathan Saacks last invest?
The most recent investment recorded for Jonathan Saacks closed in Jun 2025. Shizune tracks 28 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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