Raymond Choi

Investor

📍 Stanford, California, United States🔄 Updated September 2026💼 24 investments📅 12 years investing🗓 Last invested Jul 2024
Operator-angel🌍 United States20+ investments
24
Total investments
9
Early stage
5
Mid stage
3
Late stage
12y
Years active

Portfolio

23 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Series A investor
Jul 2024
It all started with a challenge. We were enthralled by blockchain technology and its potential to change everything on the internet, but saw that it was hampered by terrible performance. We recognized pretty early on that just attempting to make a single faster blockchain wasn’t the best solution. To truly reach web-scale on Ethereum, we would need to scale horizontally. In 2022, we launched Caldera. With our platform, projects can deploy a rollup with a single click, without an engineering team. We take care of deployment, customization, ongoing maintenance, and security, so projects can focus on building their vision. Today, Caldera is one of the fastest growing rollup ecosystems on Ethereum. We’ve empowered web3 teams to customize and launch over 60 high-performance rollups across a number of app categories, and projects have free reign to launch their rollup on Optimism, Arbitrum, ZKsync, and Polygon stacks. At present, the Caldera ecosystem comprises 1.7 million unique wallets holding over $800 million in TVL, with more than 60 million completed transactions. Some notable chains in our ecosystem include Manta Pacific, inEVM by Injective, ApeChain, Treasure, Plume Network, Towns, Kinto, RARI Chain, and Zero Network by Zerion. To learn more, visit www.caldera.xyz or follow us on X/Twitter at www.x.com/calderaxyz
Seed Investor
Jul 2024
PIN AI: Democratizing Personal On-device Intelligence for everyone, turn your digital footprints into your Personal Executive Assistant
Seed Investor
Jul 2024
PIN AI: Democratizing Personal On-device Intelligence for everyone, turn your digital footprints into your Personal Executive Assistant
Series A investor
Jul 2024
It all started with a challenge. We were enthralled by blockchain technology and its potential to change everything on the internet, but saw that it was hampered by terrible performance. We recognized pretty early on that just attempting to make a single faster blockchain wasn’t the best solution. To truly reach web-scale on Ethereum, we would need to scale horizontally. In 2022, we launched Caldera. With our platform, projects can deploy a rollup with a single click, without an engineering team. We take care of deployment, customization, ongoing maintenance, and security, so projects can focus on building their vision. Today, Caldera is one of the fastest growing rollup ecosystems on Ethereum. We’ve empowered web3 teams to customize and launch over 60 high-performance rollups across a number of app categories, and projects have free reign to launch their rollup on Optimism, Arbitrum, ZKsync, and Polygon stacks. At present, the Caldera ecosystem comprises 1.7 million unique wallets holding over $800 million in TVL, with more than 60 million completed transactions. Some notable chains in our ecosystem include Manta Pacific, inEVM by Injective, ApeChain, Treasure, Plume Network, Towns, Kinto, RARI Chain, and Zero Network by Zerion. To learn more, visit www.caldera.xyz or follow us on X/Twitter at www.x.com/calderaxyz
Seed Investor
2023
AKA Identity simplifies manual and inefficient identity and access management decisions with visibility, intelligence, and action.
Seed Investor
2023
ORA AI is a cloud-based campaign optimization tool for digital marketers and e-commerce sites. Our proprietary AI and Adaptive Machine Learning technology, developed by European and American data scientists, helps you automate PPC bidding on Google Ads, boost site traffic, maximize profitable conversions and significantly optimize campaign costs. Optimize a campaign efficiency ORA AI automated bidding and campaign management infinitely multiplies your marketing team’s brainpower and decision-making capacity. That alone can help you manage many campaigns daily and cut costs like CPC by 50%. Or more. Boost traffic to site ORA AI manages your campaign structure and adjusts it daily to avoid fake and fraudulent traffic. This increases overall effectiveness and can literally double your campaign’s CTR thus boosting site traffic. Increase conversions & sales ORA AI’s track record in driving campaign profitability is impressive: up to 80% profit growth for non-branded campaigns. It gets even better for branded campaigns. Double profitability with ORA AI.
Seed Investor
2023
ORA AI is a cloud-based campaign optimization tool for digital marketers and e-commerce sites. Our proprietary AI and Adaptive Machine Learning technology, developed by European and American data scientists, helps you automate PPC bidding on Google Ads, boost site traffic, maximize profitable conversions and significantly optimize campaign costs. Optimize a campaign efficiency ORA AI automated bidding and campaign management infinitely multiplies your marketing team’s brainpower and decision-making capacity. That alone can help you manage many campaigns daily and cut costs like CPC by 50%. Or more. Boost traffic to site ORA AI manages your campaign structure and adjusts it daily to avoid fake and fraudulent traffic. This increases overall effectiveness and can literally double your campaign’s CTR thus boosting site traffic. Increase conversions & sales ORA AI’s track record in driving campaign profitability is impressive: up to 80% profit growth for non-branded campaigns. It gets even better for branded campaigns. Double profitability with ORA AI.
Seed Investor
2023
Creators of swETH, rswETH, and Swell L2,
Seed Investor
2023
Satori Finance is a consulting company aiming to help start-ups in their growth. We advise start-ups and entrepreneurs during their fund-raising process, building pro-format financial forecasts, extensive KPI reports and helping the understanding of financial metrics. We also help start-ups and entrepreneurs after the fund-raising by providing financial performance and business process efficiency follow-up. In short, we help entrepreneurs to get funded and effectively use their funds.
Seed Investor
Oct 2021
At Babylon, we envision a future where Bitcoin and Proof-of-Stake (PoS) chains thrive together. Our mission is to build a Bitcoin-driven decentralized world by evolving Bitcoin into a trusted security backbone for PoS chains, delivering yields for bitcoin holders while fostering an integrated, secure, and decentralized economy. We trace our genesis to a transformative research paper on Bitcoin security, an original work co-authored by our co-founders, David Tse and Fisher Yu, the founder of EigenLayer, Sreeram Kannan and co-authors. Their combined intellect and foresight have set the cornerstone of Babylon. In a testament to our dedication to advancing the field, our research paper has been accepted by the highly-respected 2023 IEEE Symposium on Security and Privacy - a significant global platform for security discourse. The project is led by a team of consensus protocol researchers from Stanford and experienced layer 1 engineers from around the world. Babylon’s mission is to scale Bitcoin to secure the decentralized world. To achieve this, Babylon utilizes the three primary facets of Bitcoin: Bitcoin as an asset, its reliable timestamping service, its most censorship-resistant blockspace in the world. To leverage these facets, Babylon is developing three innovative security-sharing protocols: Bitcoin Staking Protocol, Bitcoin Timestamping Protocol, and Bitcoin Data Availability Protocol. Through these pioneering protocols, Babylon envisions a more secure and decentralized future.
Seed Investor / Board Observer
May 2021
Liberating the analog/mixed-signal IC industry by improving R&D efficiency 100X. Celera delivers the impossible​: fully automated analog/mixed-signal IC development lightning fast and the push of a button. This unburdens the industry to pursue an estimated $30B in new profitable growth ushering the next generation of semiconductor devices: Silicon 3.0 - Move Fast and Build Things.
Investor, Board Observer
Jan 2020
ModelOp is the leading in AI lifecycle management and governance platform, purpose-built for enterprises. We enable organizations to bring all their AI initiatives—from GenAI and ML to agents and agentic systems—to market faster, at scale, and with the confidence of end-to-end control, oversight, and value realization. ModelOp is used by the most complex and regulated institutions in the world—including major banks, insurers, regulatory bodies, healthcare organizations, and global CPG companies—because it delivers the structure, automation, and oversight necessary to operationalize AI at scale across the entire enterprise. Unlike development-oriented MLOps tools, compliance-centric GRC systems, generic workflow engines, or consulting services, ModelOp is purpose-built to orchestrate and govern the full model lifecycle—from use case intake, risk tiering, and compliance reviews, to model implementation, recurring validations, monitoring, decommissioning, and audit reporting. ModelOp supports all model types including those developed in-house and sourced from third-party vendors, integrates natively with enterprise systems, is fully REST-API compliant for extensibility, and enables a single source of truth that unites stakeholders across business, data science, legal, risk, compliance, and technology functions.
Investor
May 2019
Acquired by Flyhomes
early stageReal Estate
Board Observer
Dec 2018
Stellar Cyber Open XDR platform delivers comprehensive, unified security without complexity, empowering lean security teams of any skill to successfully secure their environments. With Stellar Cyber, organizations reduce risk with early and precise identification and remediation of threats while slashing costs, retaining investments in existing tools, and improving analyst productivity, delivering a 20X improvement in MTTD and an 8X improvement in MTTR. The company is based in Silicon Valley. For more information, contact https://stellarcyber.ai.
Investor
May 2018
Ferrum Health connects AI insights across service lines, turning fragmented deployments into enterprise clinical intelligence. Our vendor-neutral suite validates and monitors clinical AI models within a health systems owned, secure environment. Organizations use Ferrum to deploy models faster, validate performance objectively, and maintain complete visibility across their AI portfolio. Backed by $31 million in funding, including a Series A led by Foundry, serving more than 350 care sites globally.
Show all 23 investments ↓
Experience · 28 entries
All (28)
Investments (24)
Founder (3)
Board (3)
2024
Series A investor
Jul 2024
It all started with a challenge. We were enthralled by blockchain technology and its potential to change everything on the internet, but saw that it was hampered by terrible performance. We recognized pretty early on that just attempting to make a single faster blockchain wasn’t the best solution. To truly reach web-scale on Ethereum, we would need to scale horizontally. In 2022, we launched Caldera. With our platform, projects can deploy a rollup with a single click, without an engineering team. We take care of deployment, customization, ongoing maintenance, and security, so projects can focus on building their vision. Today, Caldera is one of the fastest growing rollup ecosystems on Ethereum. We’ve empowered web3 teams to customize and launch over 60 high-performance rollups across a number of app categories, and projects have free reign to launch their rollup on Optimism, Arbitrum, ZKsync, and Polygon stacks. At present, the Caldera ecosystem comprises 1.7 million unique wallets holding over $800 million in TVL, with more than 60 million completed transactions. Some notable chains in our ecosystem include Manta Pacific, inEVM by Injective, ApeChain, Treasure, Plume Network, Towns, Kinto, RARI Chain, and Zero Network by Zerion. To learn more, visit www.caldera.xyz or follow us on X/Twitter at www.x.com/calderaxyz
Seed Investor
Jul 2024
PIN AI: Democratizing Personal On-device Intelligence for everyone, turn your digital footprints into your Personal Executive Assistant
Seed Investor
Jul 2024
PIN AI: Democratizing Personal On-device Intelligence for everyone, turn your digital footprints into your Personal Executive Assistant
Series A investor
Jul 2024
It all started with a challenge. We were enthralled by blockchain technology and its potential to change everything on the internet, but saw that it was hampered by terrible performance. We recognized pretty early on that just attempting to make a single faster blockchain wasn’t the best solution. To truly reach web-scale on Ethereum, we would need to scale horizontally. In 2022, we launched Caldera. With our platform, projects can deploy a rollup with a single click, without an engineering team. We take care of deployment, customization, ongoing maintenance, and security, so projects can focus on building their vision. Today, Caldera is one of the fastest growing rollup ecosystems on Ethereum. We’ve empowered web3 teams to customize and launch over 60 high-performance rollups across a number of app categories, and projects have free reign to launch their rollup on Optimism, Arbitrum, ZKsync, and Polygon stacks. At present, the Caldera ecosystem comprises 1.7 million unique wallets holding over $800 million in TVL, with more than 60 million completed transactions. Some notable chains in our ecosystem include Manta Pacific, inEVM by Injective, ApeChain, Treasure, Plume Network, Towns, Kinto, RARI Chain, and Zero Network by Zerion. To learn more, visit www.caldera.xyz or follow us on X/Twitter at www.x.com/calderaxyz
2023
Seed Investor
2023
AKA Identity simplifies manual and inefficient identity and access management decisions with visibility, intelligence, and action.
Show all 28 entries ↓
Investment activity
2014–2024 · 24 investments
20142201522016120173201832019120201202122023520244
Recent (last 2 years)Earlier