PromptFoo
San Francisco, US · Founded 2024 · Delaware corporation · 4 employees on LinkedIn · 2 known investors
Promptfoo develops security and testing tools for generative AI applications, serving engineering teams building AI products at scale.
Founders & leadership
PromptFoo was founded in 2024 by Michael D'Angelo, Ian W Webster, and Ian W..
Investors · 2
Reported raises · per SEC filings
Form D private placements$22.7M disclosed across 2 rounds · 2024–2025
▶$17.5MraisedJul 2025 · 3 investors · OtherRule 506(b)
▶$17.5MraisedJul 2025 · 3 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Michael D'AngeloDirector
- Ian W WebsterExecutive Officer, Director, Promoter
- Ganesh BellDirector
- Offering amount
- $18.4M
- Amount sold
- $17.5M
- First sale
- Jul 2025
- Incorporated
- Corporation, Delaware, 2024
- Federal exemptions
- 06b
▶$5.2MraisedAug 2024 · 7 investors · OtherRule 506(b)
▶$5.2MraisedAug 2024 · 7 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Michael D'AngeloDirector
- Ian W WebsterExecutive Officer, Director, Promoter
- Offering amount
- $5.3M
- Amount sold
- $5.2M
- First sale
- Jun 2024
- Incorporated
- Corporation, Delaware, 2024
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Founder mafia
3 people who came through PromptFoo went on to found or lead other companies.
Competitors · 10
by search overlap
Hugging Face211 shared keywordsHugging Face is a collaboration platform that hosts and provides access to machine learning models, datasets, and applications. It offers both open-source tools for the ML community and paid compute and enterprise solutions for teams building AI applications.
OpenAI202 shared keywordsOpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.
Netezza189 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
Palo Alto Networks151 shared keywordsPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
DataCamp144 shared keywordsDataCamp is a learning platform for teams that teaches data and AI skills through hands-on coursework accessible via web browser and mobile app. It serves enterprise customers and development teams seeking to build technical capabilities.
LiteLLM121 shared keywordsLiteLLM provides an AI gateway that simplifies access to over 100 large language models through a unified OpenAI-compatible interface, with built-in features for fallbacks, spend tracking, and load balancing. The platform serves developers and engineering teams integrating multiple LLM providers into their applications.
OpenRouter110 shared keywordsOpenRouter operates an AI gateway that allows developers to access and compare hundreds of language models from multiple providers in a single platform. The service eliminates vendor lock-in while offering improved pricing, uptime, and reliability for companies and developers.
Anthropic104 shared keywordsAnthropic is an AI safety research company that builds reliable, interpretable, and steerable AI systems. The company conducts frontier AI research, applies safety techniques, and deploys systems through products and partnerships.
LangChain90 shared keywordsLangChain provides an agent engineering platform and open source frameworks for developers to build, test, and deploy AI agents that can use data and take actions. The platform includes LangSmith for observability and evaluation, and serves enterprise customers including 35% of the Fortune 500.
Snyk89 shared keywordsSnyk is a developer-focused security platform that identifies and fixes vulnerabilities in code, dependencies, containers, and cloud infrastructure using AI-powered analysis. The company serves organizations of all sizes looking to integrate security into their software development process.
Companies competing with PromptFoo for the same Google search keywords, organic and paid, via search-intersection analysis.
Frequently asked questions
- What does PromptFoo do?
- Promptfoo develops security and testing tools for generative AI applications, serving engineering teams building AI products at scale.
- Who founded PromptFoo?
- PromptFoo was founded by Michael D'Angelo, Ian W Webster, Ian W. in 2024.
- Who are PromptFoo's investors?
- PromptFoo's investors include Andreessen Horowitz, Insight Partners.
- How much funding has PromptFoo raised?
- PromptFoo has disclosed $22.7M raised across 2 rounds.
- Where is PromptFoo headquartered?
- PromptFoo is headquartered in San Francisco, US.