Shankar Chandran

Partner at Walden Catalyst Ventures

📍 San Francisco, California, United States🔄 Updated September 2026💼 27 investments📅 21 years investing🗓 Last invested Oct 2025
Angel investor🌍 United States20+ investmentsInvested this year
27
Total investments
12
Early stage
3
Mid stage
3
Late stage
21y
Years active

Portfolio

25 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Oct 2025
Enterprise AI product & research company, building long-horizon reasoning models and agents. Our first product, Agentic Accounting, executes Financial Audit, Billing Audit, and Revenue Leakage Detection.
Board Member
Jan 2025
Virtue AI sets the standard for advanced AI security platforms. Built on decades of foundational and award-winning research in AI security, its AI-native architecture unifies automated red-teaming, real-time multimodal guardrails, and policy-driven governance for enterprise agents, models, and apps. Virtue AI safeguards every MCP, input, and output—spanning text, code, image, video, and audio—in over 100 languages, detecting risks in sub-10 ms. Deploy in minutes across cloud, on-prem, or SaaS environments, or integrate directly with tools like ChatGPT and VS Code. With Virtue AI as your authenticated third-party partner, enterprises achieve unified visibility and assurance throughout the AI lifecycle—driving innovation without slowing performance.
Board Member
Dec 2024
Ati Robotics makes autonomous electric vehicles for material movement in industrial environments like factories, warehouses, etc. Both indoor and outdoors.
Board Member
Mar 2023
3D Glass Solutions, Inc. (3DGS) is a private late-stage high-tech manufacturing business headquartered in Albuquerque, New Mexico.  3DGS’ main operations are focused on the fabrication of electronic system and devices using photo-definable glass-ceramics.  3DGS manufactures a wide variety of glass-based system-in-package (SiP) devices and components using its patented low-loss photosensitive APEX® Glass technology for applications in radio-frequency (RF) electronics, photonics, automotive radar, integrated circuit (IC) electronics, medical, aerospace, defense, wireless infrastructure, mobile handset, and Internet of Things (IOT) industries.  3DGS has created foundational patent positions related to all photo-sensitive glass-ceramic materials and devices.  3DGS owns the fundamental intellectual property (IP) for all four positions (materials, design, systems, & manufacturing) related to glass-ceramic devices for the electronics packaging industry.  3DGS leverages its unique product solutions providing device manufacturing and systems integration services for a number of standard and custom products.  We provide our customers complete glass-enabled systems integration services.  Our aim is to provide our customers with an integrative solution in RF electronics and IC packaging that allows them to integrate more components onto a single platform while decreasing overall manufacturing costs. 
Board Member
Jun 2022
Galileo is the leading platform for enterprise GenAI evaluation and observability. Our comprehensive suite of products support builders across the new AI development workflow—from fine-tuning LLMs to developing, testing, monitoring, and securing their AI applications. Each product is powered by our research-backed evaluation metrics. Today, Galileo is used by 100s of AI teams from startups to Fortune 50 enterprises, including Twilio, Comcast, and HP.
Investor
Dec 2018
Biomatics invests in cutting-edge science that will drive the evolution of healthcare.
Investor
Jul 2018
We are an innovative computing platforms company, developing groundbreaking products for the rapidly expanding Artificial Intelligence (machine learning, deep learning, neural networks) and Vision Processing markets. Based on our proprietary Graph Streaming Processor (GSP) computing architecture, we are developing a range of next-generation hardware computing platforms to bring true data and task parallel computing to the broad market. With our focus on highly efficient computing, our comprehensive Artificial Intelligence solutions (SoCs + Platforms + Software) are being utilized in data center servers, edge infrastructure platforms and client platforms in business and consumer applications ranging from massive machine learning farms to sensor fusion and advanced neural networks for autonomous driving.
Board Observer
Jun 2018
Datrium Disaster Recovery as a Service (DRaaS) with VMware Cloud on AWS is transforming DR with its cloud-native design, built-in backup, instant RTO, and on-demand model. It’s liberating IT from the complexity of legacy DR approaches and standalone backup tools. Datrium’s award-winning platform, Automatrix™, natively converges DR, backup, primary storage,mobility, and encryption in a single platform. Datrium DVX, the industry’s fastest and most resilient DHCI system combines the durability of SANs with the simplicity of HCI, delivers 10x the performance of traditional systems, and integrates seamlessly with DRaaS. For more information, please visit www.datrium.com.
Investor
Apr 2018
early stageBiotechnology
Investor
Feb 2018
AI Fund is a venture studio. We collaborate with entrepreneurs, venture funds, and corporate partners to create great companies that move humanity forward. Founded by Andrew Ng, AI Fund is backed by over $370 million. As a venture studio, we work alongside entrepreneurs, venture funds, and corporate partners to build new companies rapidly and increase their odds of success. The studio is supported by top-tier VCs and partners including Sequoia Capital, NEA, Nikkei, and AES.
Board Observer
May 2017
Silicon Valley-based Fungible, the premier composable infrastructure company, is revolutionizing the performance, economics, reliability and security of scale-out data centers.
Investor
Feb 2017
Imec’s teams in the United States offer local access to a range of world-class semiconductor, photonic, and digital technologies. These local teams work closely with imec colleagues around the world. That means that a partnership with imec USA immediately connects you with more than 35 years of experience by one of the world’s leading R&D centers in nanoelectronics and digital technologies. Want to collaborate with imec? We’re keen to converse and collaborate with both organizations and government agencies who share our interest in nano- and digital technology.
Investor
Aug 2016
Renovo is an award-winning automotive software company. The Renovo Platform merges software, data management, and automotive-grade safety systems into a unified solution for ADAS & AV fleets. Renovo combines Silicon Valley agility with proven automotive capabilities in a singular commitment to bring ADAS & AV development to the greatest scale, highest safety and lowest cost imaginable.
late stageAutomotive
Investor
Jun 2016
Graphcore has created a new processor, the Intelligence Processing Unit (IPU), specifically designed for artificial intelligence. The IPU’s unique architecture means developers can run current machine learning models orders of magnitude faster. More importantly, it lets AI researchers undertake entirely new types of work, not possible using current technologies, to drive the next great breakthroughs in general machine intelligence. Our next generation 3D Wafer-on-Wafer Bow IPU systems are helping AI innovators worldwide to build better, more innovative AI solutions, whether their focus is on language and vision, exploring graph neural networks and LSTMs or creating something entirely new. We believe our IPU technology will become the worldwide standard for artificial intelligence compute. The performance of Graphcore’s IPU is going to be transformative across all industries and sectors whether you are a medical researcher, roboticist or building autonomous cars. Our team is at the forefront of the artificial intelligence revolution, enabling innovators from all industries and sectors to expand human potential with technology. What we do, really makes a difference. Were always interested in hearing from exceptional people to join our team.
Board Observer
May 2016
Afero is the fastest most secure sensor-to-cloud IoT platform. Customers report 3x faster time to market, 10x more attach rates, 99% fewer escalations. Contact us.
Show all 25 investments ↓
Experience · 30 entries
All (30)
Investments (27)
Board (15)
2025
Board Member
Oct 2025
Enterprise AI product & research company, building long-horizon reasoning models and agents. Our first product, Agentic Accounting, executes Financial Audit, Billing Audit, and Revenue Leakage Detection.
Board Member
Jan 2025
Virtue AI sets the standard for advanced AI security platforms. Built on decades of foundational and award-winning research in AI security, its AI-native architecture unifies automated red-teaming, real-time multimodal guardrails, and policy-driven governance for enterprise agents, models, and apps. Virtue AI safeguards every MCP, input, and output—spanning text, code, image, video, and audio—in over 100 languages, detecting risks in sub-10 ms. Deploy in minutes across cloud, on-prem, or SaaS environments, or integrate directly with tools like ChatGPT and VS Code. With Virtue AI as your authenticated third-party partner, enterprises achieve unified visibility and assurance throughout the AI lifecycle—driving innovation without slowing performance.
2024
Board Member
Dec 2024
Ati Robotics makes autonomous electric vehicles for material movement in industrial environments like factories, warehouses, etc. Both indoor and outdoors.
2023
Board Member
Mar 2023
3D Glass Solutions, Inc. (3DGS) is a private late-stage high-tech manufacturing business headquartered in Albuquerque, New Mexico.  3DGS’ main operations are focused on the fabrication of electronic system and devices using photo-definable glass-ceramics.  3DGS manufactures a wide variety of glass-based system-in-package (SiP) devices and components using its patented low-loss photosensitive APEX® Glass technology for applications in radio-frequency (RF) electronics, photonics, automotive radar, integrated circuit (IC) electronics, medical, aerospace, defense, wireless infrastructure, mobile handset, and Internet of Things (IOT) industries.  3DGS has created foundational patent positions related to all photo-sensitive glass-ceramic materials and devices.  3DGS owns the fundamental intellectual property (IP) for all four positions (materials, design, systems, & manufacturing) related to glass-ceramic devices for the electronics packaging industry.  3DGS leverages its unique product solutions providing device manufacturing and systems integration services for a number of standard and custom products.  We provide our customers complete glass-enabled systems integration services.  Our aim is to provide our customers with an integrative solution in RF electronics and IC packaging that allows them to integrate more components onto a single platform while decreasing overall manufacturing costs. 
2022
Board Member
Jun 2022
Galileo is the leading platform for enterprise GenAI evaluation and observability. Our comprehensive suite of products support builders across the new AI development workflow—from fine-tuning LLMs to developing, testing, monitoring, and securing their AI applications. Each product is powered by our research-backed evaluation metrics. Today, Galileo is used by 100s of AI teams from startups to Fortune 50 enterprises, including Twilio, Comcast, and HP.
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Investment activity
2005–2025 · 27 investments
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