David Cramer
Angel Investor
San Francisco, United States
David Cramer is a seed investor in San Francisco focused on Software and Open Source. David Cramer is founder at Sentry. He is interested in right-winging, bitter-clinging proud clinger of red bull, soylent, and python.
- Total investments:
- 22
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries David Cramer invests in
Stages David Cramer invests in
Countries David Cramer invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $2.1M–$8.4M
- Pre-Seed
- $2.6M–$4.4M
- Series A
- $8M–$10M
Investment Focus
Industry
- Software 14 (64%)
- Open Source 9 (41%)
- Information Technology 8 (36%)
- Artificial Intelligence 7 (32%)
- Developer Tools 6 (27%)
Stage
- Seed 14 (64%)
- Pre-Seed 5 (23%)
- Series A 3 (14%)
Country
- United States 13 (59%)
- United Kingdom 3 (14%)
- Israel 2 (9%)
- Canada 1 (5%)
- France 1 (5%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Strix is an open-source AI security platform that uses autonomous agents to continuously pentest applications, APIs, and codebases. | $6.7M / Seed / Jun 01, 2026 | ||
| Parse offers an AI-powered web scraping platform that transforms any website into a structured API for data extraction. | Pre-Seed / Dec 03, 2025 | ||
| Supermemory offers a platform for organizing and retrieving saved knowledge through a combination of memory APIs, semantic search, and integrated tools. It enables users and developers to import content from documents, bookmarks, and external services, and then query that content using natural language. Supermemory supports workflows like building“second brain” systems, intelligent agents, and knowledge bases by connecting context across documents. It provides permission controls and integration with large language models to allow applications to maintain stateful, evolving memory. Supermemory also addresses use-cases in research, content writing, support systems, and enterprise knowledge management. | $3M / Pre-Seed / Oct 06, 2025 | ||
| Blacksmith is a company that helps businesses to conduct their continuous integration (CI) up to twice as quickly and at half the expense. Blacksmith accomplish this by running CI on powerful gaming CPUs. | $10M / Series A / Sep 17, 2025 | ||
| Platform that lets developers of cloud services seamlessly run their local code in the context of their staging or production environments | $12.5M / Seed / Sep 16, 2025 | ||
| Kernel is a developer platform that provides Crazy Fast Browser Infrastructure for AI agents to use the internet. | $6.6M / Seed / Sep 09, 2025 | ||
| 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 | ||
| AWS made simple for startups. Just connect your code repositories, digger does the rest. Digger transparently and seamlessly manages your AWS account through infrastructure-as-code: You don’t need to worry about DevOps — or hire specialists — but you still retain full control. | $3.6M / Seed / Jun 17, 2025 | ||
| Gentrace is a test and production evaluation for companies building generative AI at scale that improves the quality, safety, and compliance of LLM outputs. Its end-to-end solution platform encompasses a purpose-built testing environment that models real-world applications and comprehensive analytics to assess AI model performance. | $8M / Series A / Dec 10, 2024 | ||
| Twenty builds the modern salesforce, powered by the open source community. | $5M / Seed / Nov 19, 2024 | ||
| See all 22 investments → | |||
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FAQ
What does David Cramer invest in?
David Cramer invests primarily in Software, Open Source and Information Technology startups, most often at Seed and Pre-Seed stage. Most of the 22 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 David Cramer's check size?
David Cramer typically joins rounds of $2.1M–$8.4M at Seed, $2.6M–$4.4M at Pre-Seed and $8M–$10M 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 David Cramer participates in.
How do I contact David Cramer?
Public channels for David Cramer include LinkedIn, X (Twitter) and Facebook. 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 David Cramer last invest?
The most recent investment recorded for David Cramer closed in Jun 2026. Shizune tracks 22 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 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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