Keith Ryu

Building AI Employees. Ex-founder/ceo of Fountain.

📍 United States🔄 Updated September 2026💼 10 investments📅 7 years investing🗓 Last invested Jan 2024
Operator-angel🌍 United States
10
Total investments
8
Early stage
0
Mid stage
1
Late stage
7y
Years active

Portfolio

10 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jan 2024
Computers are extremely powerful, but they have long been constrained by limited software that could only handle a narrow set of pre-programmed tasks. The result is a computing experience that is inflexible and unable to help us accomplish individualized goals. With the rise of AI and LLMs, computers can finally understand language, reason and context. Our mission is to harness these capabilities and unlock the full power of computing for everyone. We are building a new product for Mac that puts AI at your fingertips. We call it Sky. Sky understands what’s on your screen and helps you take action in your apps. You can use built-in tools to schedule meetings, send messages, search emails, and more. Or, you can build your own custom tools that leverage natural language prompts, AppleScripts, shell scripts, shortcuts, and MCPs. We think Sky will redefine how people interact with computers. We hope you’ll join us. With the advent of AI and LLMs, computers can finally understand human language and reason. Our mission is to use these capabilities to unlock the full power of computing and put it in the hands of everyday people. We are building a new, personal computing experience that will feel like an extension of yourself. The goal is to help you organize, problem-solve and get things done, by combining AI, automation, and deep integration with your data and applications. We hope youll join us.
Investor
2023
Jericho Security is on a mission to defend the world from the new threats of generative AI cyber attacks. We created our proprietary generative AI, CyberGPT, to simulate attacks, create new defenses and educate your teams about how to prevent serious losses from cyberattacks. With unparalleled expertise in sophisticated analytics and top-of-the-line educational frameworks, we are committed to defending others from the unimaginable scale and volume of attacks that only AI can unleash.
Investor
Nov 2021
Nitra’s mission is to overhaul the healthcare industry with radically efficient and transparent solutions. Nitra empowers providers to find the right balance between supporting their patients and running their practice – starting with tools that deliver a simpler, smarter way to manage their spending. Nitra solutions integrate seamlessly with the complex business processes of the industry. Our goal is to provide an ecosystem that helps doctors better manage their practices, so they can focus on their patients. Starting with the first business card built specifically for doctors, Nitra will expand to bring physicians and medical clinics around the country the loans, accounts, payments, and expense management products they expect, in an all-in-one platform powered by machine learning and blockchain technologies. The company was created by unicorn founders who have successfully scaled to thousands of customers. They are joined by an ambitious and experienced team from Amazon, American Express, Citi, Dropbox, Facebook, Mastercard and PayPal. The team is supported by an expert group of Advisors such as the cofounders of Square and Xendit, executives from Intuit, Governors and White House senior staffers, and has raised $200 million+ from Andreessen Horowitz (a16z), New Enterprise Associates (NEA), Sazze Partners, Pantera, KB Financial Group (South Korea’s largest bank), Jerry Yang, Will Smith’s Dreamers VC, Dunamu & Partners (associated with Korea’s largest crypto exchange Upbit), Coventure and others. www.nitra.com. Interested? We are growing fast and actively building our team. Look at our job postings and let us know where you fit!
Board Member
Sep 2020
Fountain is the AI-native Operating System for the global frontline workforce. With modular products, intelligent agents, and a unified orchestration layer, Frontline OS helps HR and operations teams automate tasks, streamline workflows, and accelerate hiring without losing control. From logistics to retail to healthcare, Fountain powers performance where it matters most: at the frontline. Fountain’s all-in-one high volume hiring platform empowers the world’s leading enterprises to find the right people through smart, fast, and seamless recruiting. Candidates can apply anytime, anywhere in minutes, right from their phone. Automated and customizable processes streamline the candidate experience and save time for recruitment teams so they can scale with growing hiring needs. Advanced analytics provide end-to-end process visibility so managers can make swift, data-driven decisions. Throughout the candidate journey, the openly integrated platform enables companies to find, qualify and convert more applicants. Fountain’s global customers hire over 1.2 million workers annually in 78 countries. Why Work with Us: - Generous compensation - 100% Remote and Flexible Hours - Flexible PTO - Equity grants - Comprehensive healthcare benefits - Generous paid parental leave for all parents - Wellness and gym reimbursement - Home office stipend - Phone stipend - 401K plan - Learning and development reimbursement - Company events - FSA & HSA - Life Insurance & Long-Term Disability/Short-Term Disability Visit us at https://www.fountain.com to learn more.
Investor
Aug 2020
The world is moving toward more standardized, open, and interconnected data systems. However, employment infrastructure remains complex, closed, and fragmented. Our mission is to democratize access to the infrastructure that underpins the employment sector and unlock much-needed innovations and create tremendous economic activities for both employers and employees. Finch is a Series B company with $62 Million+ in total funding and is backed by Menlo Ventures, General Catalyst, QED, Intuit Ventures, and Y Combinator.
Investor
2020
ChartHop is a dynamic People Operations Platform that connects and visualizes all your people data to empower your organization through insights, alignment, and action.
Investor
2020
Pipe makes embedded financial solutions accessible to growing businesses inside the software they use every day. Underwriting is based on live transaction and business data, removing the hurdles of traditional business financing. How does it work? Eligible merchants: Receive a pre-approved or pre-qualified offer, based on their revenue Verify a few business and ownership details Then accept as much of their offer as they need and get back to doing what they love, running their business Pipe can help turn your software into a one-stop shop for your customers and help them gain access to the capital they need to thrive.
Investor
2020
Secureframe is the automated compliance platform built by compliance experts. Were transforming how businesses manage risk and compliance.
Investor
2019
Italic is a contemporary brand that was born to challenge the conventional notion of luxury. Our tagline is “Luxury without labels” — we believe luxury should be defined by the quality of a product, not by a price tag or logo. We use the same manufacturers as top luxury brands with a direct-from-factory model to deliver true luxury quality for unparalleled value. Italic is headquartered in Los Angeles and partners with more than 60 manufacturers around the world. To learn more about Italic, please visit italic.com
early stageRetail
Investor
2019
Today companies spend over $1T to bring customers to the door, but $19 of every $20 they spend does not convert to revenue. Companies have no choice other than to dedicate large engineering and data science teams to manually build more relevant, higher converting experiences for different customer segments. Mutiny is a no-code AI platform that helps marketers convert their top of funnel demand into revenue, without engineers. Mutiny gives marketers everything they need to drive revenue and prove it — from data and analytics to AI-powered recommendations and content writing. We are backed by Sequoia Capital, Tiger Global, Insight Partners, YCombinator and CMOs from some of today's fastest-growing tech companies including AngelList, Carta, Gong, Hopin, Salesforce and Snowflake.
Experience · 12 entries
All (12)
Investments (10)
Founder (2)
Board (1)
2024
Founder
Jul 2024
Helping Stealth Startups to Launch, Hire & Scale. Here Recruiters Usually List Stealth Roles for early stage startups and job seekers can connect and consider those roles.
Investor
Jan 2024
Computers are extremely powerful, but they have long been constrained by limited software that could only handle a narrow set of pre-programmed tasks. The result is a computing experience that is inflexible and unable to help us accomplish individualized goals. With the rise of AI and LLMs, computers can finally understand language, reason and context. Our mission is to harness these capabilities and unlock the full power of computing for everyone. We are building a new product for Mac that puts AI at your fingertips. We call it Sky. Sky understands what’s on your screen and helps you take action in your apps. You can use built-in tools to schedule meetings, send messages, search emails, and more. Or, you can build your own custom tools that leverage natural language prompts, AppleScripts, shell scripts, shortcuts, and MCPs. We think Sky will redefine how people interact with computers. We hope you’ll join us. With the advent of AI and LLMs, computers can finally understand human language and reason. Our mission is to use these capabilities to unlock the full power of computing and put it in the hands of everyday people. We are building a new, personal computing experience that will feel like an extension of yourself. The goal is to help you organize, problem-solve and get things done, by combining AI, automation, and deep integration with your data and applications. We hope youll join us.
2023
Investor
2023
Jericho Security is on a mission to defend the world from the new threats of generative AI cyber attacks. We created our proprietary generative AI, CyberGPT, to simulate attacks, create new defenses and educate your teams about how to prevent serious losses from cyberattacks. With unparalleled expertise in sophisticated analytics and top-of-the-line educational frameworks, we are committed to defending others from the unimaginable scale and volume of attacks that only AI can unleash.
2021
Investor
Nov 2021
Nitra’s mission is to overhaul the healthcare industry with radically efficient and transparent solutions. Nitra empowers providers to find the right balance between supporting their patients and running their practice – starting with tools that deliver a simpler, smarter way to manage their spending. Nitra solutions integrate seamlessly with the complex business processes of the industry. Our goal is to provide an ecosystem that helps doctors better manage their practices, so they can focus on their patients. Starting with the first business card built specifically for doctors, Nitra will expand to bring physicians and medical clinics around the country the loans, accounts, payments, and expense management products they expect, in an all-in-one platform powered by machine learning and blockchain technologies. The company was created by unicorn founders who have successfully scaled to thousands of customers. They are joined by an ambitious and experienced team from Amazon, American Express, Citi, Dropbox, Facebook, Mastercard and PayPal. The team is supported by an expert group of Advisors such as the cofounders of Square and Xendit, executives from Intuit, Governors and White House senior staffers, and has raised $200 million+ from Andreessen Horowitz (a16z), New Enterprise Associates (NEA), Sazze Partners, Pantera, KB Financial Group (South Korea’s largest bank), Jerry Yang, Will Smith’s Dreamers VC, Dunamu & Partners (associated with Korea’s largest crypto exchange Upbit), Coventure and others. www.nitra.com. Interested? We are growing fast and actively building our team. Look at our job postings and let us know where you fit!
2020
Board Member
Sep 2020
Fountain is the AI-native Operating System for the global frontline workforce. With modular products, intelligent agents, and a unified orchestration layer, Frontline OS helps HR and operations teams automate tasks, streamline workflows, and accelerate hiring without losing control. From logistics to retail to healthcare, Fountain powers performance where it matters most: at the frontline. Fountain’s all-in-one high volume hiring platform empowers the world’s leading enterprises to find the right people through smart, fast, and seamless recruiting. Candidates can apply anytime, anywhere in minutes, right from their phone. Automated and customizable processes streamline the candidate experience and save time for recruitment teams so they can scale with growing hiring needs. Advanced analytics provide end-to-end process visibility so managers can make swift, data-driven decisions. Throughout the candidate journey, the openly integrated platform enables companies to find, qualify and convert more applicants. Fountain’s global customers hire over 1.2 million workers annually in 78 countries. Why Work with Us: - Generous compensation - 100% Remote and Flexible Hours - Flexible PTO - Equity grants - Comprehensive healthcare benefits - Generous paid parental leave for all parents - Wellness and gym reimbursement - Home office stipend - Phone stipend - 401K plan - Learning and development reimbursement - Company events - FSA & HSA - Life Insurance & Long-Term Disability/Short-Term Disability Visit us at https://www.fountain.com to learn more.
Show all 12 entries ↓
Investment activity
2019–2024 · 10 investments
2019220205202112023120241
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