Joseph Jacks
Founder and CEO @ OSS Capital L.P.
San Francisco, United States
Joseph Jacks is a seed investor at OSS Capital L.P. in San Francisco focused on Software and Information Technology. Founder and General Partner of OSS Capital, L.P. 10+ years enterprise startup technology executive at large (100K+ people) and small (>15) companies with high-end perpetual-based license business models and/or lightweight, disruptive, open-source and subscription-based offerings in high-growth environments (100%+ YoY growth).
- Total investments:
- 17
- Last investment:
- Lead investor:
- 76%
Last updated:
For AI agents: llms.txt
Industries Joseph Jacks invests in
Stages Joseph Jacks invests in
Countries Joseph Jacks invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 10 (59%)
- Information Technology 4 (24%)
- Developer Tools 3 (18%)
- SaaS 2 (12%)
- Computer 2 (12%)
Stage
- Seed 10 (59%)
- Series A 3 (18%)
- Pre-Seed 2 (12%)
- Series B 1 (6%)
Country
- United States 8 (47%)
- India 1 (6%)
- Brazil 1 (6%)
- Ireland 1 (6%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| W4 Games helps to support the open-source Godot ecosystem by giving businesses the goods and services they require on a commercial level. | $18M / Series B / Aug 25, 2026 | ||
| Comp AI is revolutionizing the compliance industry with its groundbreaking open source compliance automation platform. Our mission is to assist 100,000 companies in achieving SOC 2, ISO 27001, and GDPR compliance by 2032. By seamlessly integrating with your existing systems, our platform simplifies the compliance process and ensures that yourorganization meets the necessary standards. Here are the key features and benefits of Comp AI’s compliance automation platform:Automate Compliance Tracking: Effortlessly track compliance progress in real-time. Evidence Collection: Automatically collect and organize evidence to streamline audits. Risk Assessment: Identify and assess potential risks to proactively mitigate compliance issues. Vendor Management: Manage vendor compliance requirements efficiently from a single platform.With Comp AI’s open source compliance automation platform, you can achieve and maintain compliance with ease. Say goodbye to manual processes and embrace a more efficient and effective approach to compliance management. Join us in our mission to transform the compliance landscape and secure a compliant future for your organization. | $2.6M / Pre-Seed / Jul 31, 2025 | ||
| Building AGI, AI as Service, Generative AI | $250M / Series A / Dec 13, 2024 | ||
| Building AGI, AI as Service, Generative AI | $37.5M / Seed / Dec 01, 2023 | ||
| Break out of opinionated tools, inflexible features, and turbulent pricing. Move work forward, backward, up, down, and sideways when you need to the way you want to. No changing well-oiled processes. No learning new features. No lectures. Just Plane project management. | $4M / Seed / Nov 19, 2023 | ||
| Building AGI, AI as Service, Generative AI | $5.6M / Seed / May 05, 2023 | ||
| MergeStat enables open-source, operational analytics for software engineering teams. | $1.2M / Pre-Seed / Dec 06, 2022 | ||
| W4 Games helps to support the open-source Godot ecosystem by giving businesses the goods and services they require on a commercial level. | $8.5M / Seed / Sep 13, 2022 | ||
| Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust. Combine your drives and clouds into one database that you can organize and explore from any device. Designed for creators, hoarders and the painfully disorganized. | $2M / Seed / Jun 13, 2022 | ||
| OpenBB is an open source company building a modern investment research terminal.OpenBB is a leading open source investment analysis company. We represent millions of investors who want to leverage state-of-the-art data science and machine learning technologies to make sense of raw unrefined data. Our mission is to make investment researcheffective, powerful and accessible to everyone. | $8.5M / Seed / Mar 29, 2022 | ||
| See all 17 investments → | |||
Co-Investors
About OSS Capital L.P.
OSS Capital's mission is to catalyze the commercial open-source software (COSS) investment landscape by rethinking the traditional VC model by focusing exclusively on backing and supporting early-stage COSS founders of the next-generation.We are backed and supported by the previous generation of the worlds most successful and experiencedCOSS founders who have collectively: - Started 40 + of the worlds largest and most successful COSS companies - Unlocked $16 billion + in aggregate annual revenue - Driven $70 billion + in outcomes/exits across IPOs, M&A and PE events - Captured $145 billion + in aggregate value - Created 44,000 + full-time OSS jobs - Raised $9 billion + in venture capitalIf you are a COSS founder looking for the worlds most differentiated lifecycle agnostic source of capital for your venture, look no further than OSS Capital.
OSS Capital L.P. Contacts
| Name | Phone | Socials | |
|---|---|---|---|
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Joseph Jacks
Founder and CEO
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Scott Williamson
Portfolio Partner: Product
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Scott Williamson
Portfolio Partner: Product
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Clement Pang
Limited Partner
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Heather Meeker
Portfolio Partner: Legal
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FAQ
What does Joseph Jacks invest in?
Joseph Jacks invests primarily in Software, Information Technology and Developer Tools startups, most often at Seed and Series A stage. Most of the 17 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 Joseph Jacks?
Public channels for Joseph Jacks 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 Joseph Jacks last invest?
The most recent investment recorded for Joseph Jacks closed in Aug 2026. Shizune tracks 17 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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