Open Field Capital
VC Fund
New York, United States
Open Field Capital is a VC fund in New York focused on Artificial Intelligence and Software. Open Field Capital LLC was established in August of 2003 with the exclusive focus of managing portfolios in emerging technology equities.The founding principals of Open Field Capital have worked together for over 15 years and have a substantial depth and breadth of experience in the financial markets. Throughout that time, the principals haveworked in emerging technology markets and have developed both an investment philosophy and methodology tailored to the sector's unique characteristics.
- Total investments:
- 32
- Last investment:
- Lead investor:
- 0%
- Fund size:
- $2.3M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Open Field Capital invests in
Stages Open Field Capital invests in
Countries Open Field Capital invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $3.1M–$30M
- Series A
- $8.7M–$350M
- Venture - Series Unknown
- $150k–$6.2M
Investment Focus
Industry
- Artificial Intelligence 12 (38%)
- Software 9 (28%)
- Machine Learning 8 (25%)
- Health Care 6 (19%)
- Hardware 4 (13%)
Stage
- Venture - Series Unknown 8 (25%)
- Series A 6 (19%)
- Seed 5 (16%)
- Series C 5 (16%)
- Series B 4 (13%)
Country
- United States 24 (75%)
- Austria 1 (3%)
- United Kingdom 1 (3%)
- Trinidad and Tobago 1 (3%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Marc Jay Weiss
CIO & Founder
|
CIO & Founder | Total investments: 2 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Groq is a technology company that designs and provides specialized artificial intelligence compute solutions focused on accelerating AI inference workloads using its custom-built Language Processing Unit (LPU) hardware and associated software stack. The company’s core products include purpose-designed silicon and cloud-accessible platforms thatsupport real-time execution of large language models and other AI tasks with low latency and high throughput, enabling developers and enterprises to integrate AI services into production environments efficiently. Groq also delivers cloud-based services that allow customers to access inference capabilities via APIs compatible with popular development tools, supporting seamless integration into existing AI workflows. Its engineering efforts emphasise deterministic performance and streamlined deployment, targeting use cases where speed and cost predictability are critical. Groq engages with partners and customers across sectors that require rapid AI inferencing, and the company’s technology has attracted significant strategic interest and investment within the broader AI infrastructure ecosystem. | $350M / Series A / Aug 17, 2026 | ||
| Paragraf is the world’s leading graphene-based electronic device design, development and manufacturing company. Building on our proprietary process to grow graphene directly on standard semiconductor industry substrates, Paragraf has pioneered the delivery of two-dimensional technologies at scale. Paragraf’s high-quality graphene – integratablewith standard semiconductor tool process lines – has unlocked the incorporation of this remarkable material into both existing and new electronic devices and applications. Through our world-first dedicated graphene device foundry, Paragraf delivers high-performance, low-power technologies to multiple markets and offers two-dimensional-material foundry services to customers and partners, providing graphene in chips to their device requirements. | $55M / Series C / Aug 25, 2025 | ||
| Numenta has developed a cohesive theory, core software technology, and numerous applications all based on principles of the neocortex. This technology lays the groundwork for the new era of machine intelligence. Our innovative work delivers breakthrough capabilities and demonstrates that a computing approach based on biological learning principleswill make possible a new generation of capabilities not possible with today’s programmed computers. | $3.1M / Seed / Jun 26, 2024 | ||
| Mojo Vision is a developer of augmented reality products and platforms intended to invent the future of computing. The company has developed a smart contact lens with a built-in display that gives timely information without interrupting the focus and delivers immediate, powerful, and relevant information without the intrusions of today'smobile devices, enabling users to connect with others at a glance, anytime, anywhere handsfree.Mojo Vision was founded in 2015 and headquartered in Saratoga, California. | $43.5M / Series A / Oct 12, 2023 | ||
| Mojo Vision is a developer of augmented reality products and platforms intended to invent the future of computing. The company has developed a smart contact lens with a built-in display that gives timely information without interrupting the focus and delivers immediate, powerful, and relevant information without the intrusions of today'smobile devices, enabling users to connect with others at a glance, anytime, anywhere handsfree.Mojo Vision was founded in 2015 and headquartered in Saratoga, California. | $22.4M / Series C / Apr 05, 2023 | ||
| Delfi Diagnostics detect cancer early, when it is most curable, using high precision non-invasive blood tests. It uses artificial intelligence and genome sequencing to detect unique patterns of DNA fragmentation in the blood of patients. | $225M / Series B / Jul 18, 2022 | ||
| Neo Cybernetica develops cybernetics technology to improve the capability of artificially intelligent systems in achieving both autonomously and in collaboration with humans. | $30M / Seed / Feb 09, 2022 | ||
| Mojo Vision is a developer of augmented reality products and platforms intended to invent the future of computing. The company has developed a smart contact lens with a built-in display that gives timely information without interrupting the focus and delivers immediate, powerful, and relevant information without the intrusions of today'smobile devices, enabling users to connect with others at a glance, anytime, anywhere handsfree.Mojo Vision was founded in 2015 and headquartered in Saratoga, California. | $45M / Series B / Jan 04, 2022 | ||
| dClimate is the world's first transparent, decentralized marketplace where climate data, forecasts, and models are standardized, monetized, and distributed. The marketplace connects data publishers directly with data consumers, making climate data more accessible and reliable. When data providers share data and forecasts with the market it isautomatically scored for reliability, which helps consumers to shop for information. In exchange, dClimate creates a simple, direct-to-consumer distribution mechanism to monetize their work. | $3.5M / Seed / Apr 08, 2021 | ||
| Their academia-leading research was the initial component of our expanding portfolio of AI technologies. They are combining novel deep neural networks, biophysical simulation, and massively scalable computing infrastructure to achieve industry-leading performance in a molecular generation and property prediction.The company was founded in 2019and based in South San Francisco, California. | $52M / Series A / Dec 02, 2020 | ||
| See all 32 investments → | |||
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FAQ
What does Open Field Capital invest in?
Open Field Capital invests primarily in Artificial Intelligence, Software and Machine Learning startups, most often at Venture - Series Unknown and Series A stage. Most of the 32 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 Open Field Capital's check size?
Open Field Capital typically joins rounds of $3.1M–$30M at Seed, $8.7M–$350M at Series A and $150k–$6.2M at Venture - Series Unknown. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Open Field Capital participates in.
How do I contact Open Field Capital?
Public channels for Open Field Capital 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.
Who are the partners at Open Field Capital?
The team at Open Field Capital includes Marc Jay Weiss (CIO & Founder). 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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