Jeffrey Seibert
Angel Investor
San Francisco, United States
Jeffrey Seibert is a seed investor in San Francisco focused on Software and Artificial Intelligence. Jeff Seibert is the Co-Founder of CEO of Digits. He previously worked at Pix.wine as a Board Member. Jeff Seibert attended Stanford University.
- Total investments:
- 66
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Jeffrey Seibert invests in
Stages Jeffrey Seibert invests in
Countries Jeffrey Seibert invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1M–$6.1M
- Pre-Seed
- $4M–$4.5M
- Series A
- $8M–$24M
Investment Focus
Industry
- Software 20 (30%)
- Artificial Intelligence 13 (20%)
- SaaS 11 (17%)
- FinTech 9 (14%)
- Machine Learning 8 (12%)
Stage
- Seed 37 (56%)
- Series A 13 (20%)
- Pre-Seed 6 (9%)
- Funding Round 2 (3%)
- Angel 1 (2%)
Country
- United States 52 (79%)
- Australia 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Finch Legal is a software development company that supports personal injury law firms. The company aims to provide practical and effective legal solutions, as suggested by its commitment to serving clients better and more efficiently. | $23.7M / Series A / Jun 16, 2025 | ||
| Finch Legal is a software development company that supports personal injury law firms. The company aims to provide practical and effective legal solutions, as suggested by its commitment to serving clients better and more efficiently. | Seed / Apr 16, 2025 | ||
| Building the world's first infringement detector. | $4.5M / Pre-Seed / Jun 27, 2023 | ||
| Powerful leak protection from LLMs like ChatGPT, Bard, Bing, or Claude. Deploy protection today. | $4M / Pre-Seed / Jun 27, 2023 | ||
Infringements
|
Monitor your patents and get instant alerts on potential infringements. | $4M / Pre-Seed / Jun 27, 2023 | |
| IPR-tested prior art search. The ultimate patent invalidation tool. | $4M / Pre-Seed / Jun 27, 2023 | ||
| Problems solved: - Multi-hop reasoning - Compound system data portability - Sub-second, multi-thousand data point synthesization - Multi-domain, multi-topic, multi-subject simultaneous analysis - Lossless recall - Zero hallucinations - And many, many more...Built. In Production. (Currently the reasoning engine powering Patented.ai to solve thehardest problems in litigation.) | Pre-Seed / Jun 27, 2023 | ||
| Ghost Message enables users to send an anonymous message to pals in a group chat to flirt, make jokes, or pose queries. | $8M / Seed / Mar 15, 2023 | ||
| T2 is a social networking platform that allows users to send blogs. | $1.1M / Seed / Jan 12, 2023 | ||
| Mural is an instant global payments platform, empowering companies to manage payments and invoices for contractors and vendors worldwide. Our software leverages blockchain technology to facilitate fast, scalable, and compliant transactions to empower our customers to move beyond slow international wires, costly transaction fees, and lack oftransaction visibility.Mural has raised $5.6M and is backed by Firstminute Capital, Galaxy Digital, Digital Currency Group, AlleyCorp, 186 Ventures, and leaders at companies including Ledger, Alchemy, Digits, Argent, Esusu, Apple and many more. More on us at https://www.muralpay.com. | $5.6M / Seed / Aug 23, 2022 | ||
| See all 66 investments → | |||
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FAQ
What does Jeffrey Seibert invest in?
Jeffrey Seibert invests primarily in Software, Artificial Intelligence and SaaS startups, most often at Seed and Series A stage. Most of the 66 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 Jeffrey Seibert's check size?
Jeffrey Seibert typically joins rounds of $1M–$6.1M at Seed, $4M–$4.5M at Pre-Seed and $8M–$24M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Jeffrey Seibert participates in.
How do I contact Jeffrey Seibert?
Public channels for Jeffrey Seibert 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 Jeffrey Seibert last invest?
The most recent investment recorded for Jeffrey Seibert closed in Jun 2025. Shizune tracks 66 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 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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