Walden Catalyst

Walden Catalyst is a San Francisco-based venture capital firm that provides early-stage investments and operational expertise in data, deep tech, AI, cloud, and digital biology. It continues the legacy of Walden International and Samsung Catalyst Fund, leveraging its operational and investing experience to help early-stage entrepreneurs scale and innovate. The firm partners with visionaries to unlock innovation and accelerate growth. Walden Catalyst targets early-stage opportunities across the United States, Europe, and Israel, focusing on data, artificial intelligence, quantum, cloud, and digital biology sectors. It is registered as an investment adviser, underscoring its commitment to guiding portfolio companies with seasoned oversight.

Nicolas Autret

Partner

Shankar Chandran

Partner

Roni Hefetz

Partner

Francis Ho

Partner

Andrew Kau

Partner

Young Sohn

General Partner

24 past transactions

Virtue AI

Seed Round in 2025
Virtue AI specializes in AI security and compliance, offering a decentralized, open platform designed for the public good. Their platform provides comprehensive risk assessments for AI applications, ensuring regulatory compliance, and features AI Safety leaderboards for performance benchmarking.

Virtue AI

Series A in 2025
Virtue AI specializes in AI security and compliance, offering a decentralized, open platform designed for the public good. Their platform provides comprehensive risk assessments for AI applications, ensuring regulatory compliance, and features AI Safety leaderboards for performance benchmarking.

Ati Motors

Series B in 2025
Ati Motors designs and manufactures all-electric autonomous industrial cargo vehicles for material handling in factories and warehouses. The company's autonomous electric vehicles navigate indoor and outdoor environments using LiDAR, cameras, and infrared sensors to negotiate traffic and operate safely. The vehicles can integrate with existing trolleys and workflows without requiring changes, enabling automated material movement across industrial settings.

ANYbotics

Series B in 2024
ANYbotics AG, founded in 2016 and based in Zurich, Switzerland, specializes in developing autonomous, legged robots designed for industrial applications. The company focuses on creating innovative robotic solutions that enhance worker safety and productivity while promoting sustainable industrial practices. ANYbotics' robots are equipped with advanced features such as docking stations, sensing capabilities, and waterproof designs, enabling them to perform various tasks, including routine inspections, asset monitoring, gas detection, and the creation of 3D models. Their technology is particularly beneficial for industries like oil and gas, power, energy, mining, processing, chemicals, transportation, and construction, where complex and hazardous environments require reliable inspection solutions. With a team of over 100 employees, ANYbotics collaborates with global technology leaders to deliver integrated robotic systems that support the operational needs of large asset operators.

Galileo

Series B in 2024
Galileo.ai is a technology company specializing in AI application management. It offers a suite of services including development, testing, monitoring, and security for AI applications. The core product is an AI platform designed to enhance machine learning processes by automatically identifying errors and data gaps, thereby improving efficiencies, reducing costs, and mitigating biases across various industries such as healthcare, finance, and insurance.

etherWhere

Series B in 2024
EtherWhere specializes in manufacturing low-power, high-performance IoT chips designed for Global Navigation Satellite Systems (GNSS). Their flagship product, the EW6180, is an analog front-end and digital baseband chip that operates independently or via their eCloud mode, allowing designers to optimize parameters based on specific use cases. The company's focus lies in reducing power consumption while enhancing GPS performance.

Nearfield Instruments

Series C in 2024
Nearfield Instruments B.V. is a company based in Rotterdam, the Netherlands, that specializes in the development and manufacture of High-Throughput Scanning Probe Metrology systems for the semiconductor industry. Founded in 2016, Nearfield Instruments focuses on enhancing process control in semiconductor manufacturing by enabling atomic-scale resolution in the analysis of integrated circuits. Their innovative technology allows for detailed scanning of chip surfaces during fabrication, which significantly improves production yields and the functionality of microchips. By offering advanced metrology solutions, Nearfield Instruments contributes to the production of smaller and more efficient electronic devices, marking a notable advancement over traditional metrology methods.

Rivos

Series A in 2024
Rivos is a startup focused on developing high-performance RISC-V systems aimed at providing integrated solutions for enterprises. The company manufactures computing chips designed to deliver efficient and powerful server systems tailored for large language models and data analytics. Rivos offers a comprehensive RISC-V-based server solution that includes optimized processors, a data parallel accelerator, and an open software stack. This platform enables developers to effectively deploy existing workloads, enhancing performance, security, and overall cost efficiency.

Clarity

Seed Round in 2024
Clarity is an artificial intelligence cybersecurity company focused on combating AI-driven misinformation and deepfakes. The company offers a platform that utilizes collective intelligence technology to detect AI manipulation across various media formats, including video, audio, and images. By providing adaptive and explainable detection capabilities, Clarity aims to uphold the integrity of digital interactions and ensure the reliable flow of critical information for businesses. The company's solutions are designed to enhance the resilience of vital democratic institutions, enabling clients to effectively differentiate between authentic content and hyperrealistic generative AI media.

Artera

Venture Round in 2024
Artera develops medical artificial intelligence tests that personalize therapy for cancer patients. Its tests predict therapeutic benefits and prognosticate patient outcomes. The Artera platform is purely software, and runs on digital images of H&E histopathology images as part of routine clinical care.

Ingonyama

Seed Round in 2023
Ingonyama specializes in developing high-performance zero-knowledge-proof hardware accelerators. Their innovative chip design, coupled with advanced algorithms and mathematical expertise, enables developers to build cryptographic applications more efficiently.

AI21 Labs

Series C in 2023
AI21 Labs is an Israeli artificial intelligence company that develops generative AI and large language models along with tools to understand and generate natural language. Founded in 2017 and based in Tel Aviv-Yafo, it provides AI-based writing and reading assistance that understands context and meaning, including a writing companion that can rephrase text to convey the intended message and generate summaries. The company's tools help users read more efficiently, analyze and visualize complex knowledge structures, and apply deep learning and NLP to transform writing and comprehension for businesses and individuals.

MindsDB

Seed Round in 2023
MindsDB Inc. is a company specializing in an automated machine learning platform that empowers users to derive insights from their data. Founded in 2017 by Adam Carrigan and Jorge Torres, the company aims to democratize machine learning, allowing users to pose predictive questions and receive accurate answers. MindsDB offers a versatile platform applicable in various sectors, including retail, financial services, healthcare, and manufacturing, facilitating tasks such as credit scoring, customer lifetime value optimization, fraud detection, and predictive maintenance. By automating the processes involved in generating quality predictions, MindsDB enables organizations to leverage the capabilities of a skilled data science team at a fraction of the cost. The firm is headquartered in Berkeley, California, and gained recognition as one of America's most promising AI companies after graduating from YCombinator's Winter 2020 batch.

ANYbotics

Series B in 2023
ANYbotics AG, founded in 2016 and based in Zurich, Switzerland, specializes in developing autonomous, legged robots designed for industrial applications. The company focuses on creating innovative robotic solutions that enhance worker safety and productivity while promoting sustainable industrial practices. ANYbotics' robots are equipped with advanced features such as docking stations, sensing capabilities, and waterproof designs, enabling them to perform various tasks, including routine inspections, asset monitoring, gas detection, and the creation of 3D models. Their technology is particularly beneficial for industries like oil and gas, power, energy, mining, processing, chemicals, transportation, and construction, where complex and hazardous environments require reliable inspection solutions. With a team of over 100 employees, ANYbotics collaborates with global technology leaders to deliver integrated robotic systems that support the operational needs of large asset operators.

3D Glass Solutions

Series C in 2023
3D Glass Solutions, Inc. is a manufacturer of glass-based system-in-package (SiP) electronic packaging devices and components, specializing in the integration of electronic systems. Founded in 2006 and headquartered in Albuquerque, New Mexico, the company provides design consultation and prototyping services, catering primarily to integrated circuit manufacturers, photonic component suppliers, and defense contractors. Utilizing their patented APEX® Glass technology, 3D Glass Solutions offers a range of photo-definable components, including bandpass filters, gain antennas, discrete LC components, and impedance matching networks. Their innovative approach enables clients to integrate multiple components onto a single platform, resulting in reduced manufacturing costs and enhanced performance in industry-specific applications.

Artera

Venture Round in 2023
Artera develops medical artificial intelligence tests that personalize therapy for cancer patients. Its tests predict therapeutic benefits and prognosticate patient outcomes. The Artera platform is purely software, and runs on digital images of H&E histopathology images as part of routine clinical care.

Galileo

Series A in 2022
Galileo.ai is a technology company specializing in AI application management. It offers a suite of services including development, testing, monitoring, and security for AI applications. The core product is an AI platform designed to enhance machine learning processes by automatically identifying errors and data gaps, thereby improving efficiencies, reducing costs, and mitigating biases across various industries such as healthcare, finance, and insurance.

AI21 Labs

Series B in 2022
AI21 Labs is an Israeli artificial intelligence company that develops generative AI and large language models along with tools to understand and generate natural language. Founded in 2017 and based in Tel Aviv-Yafo, it provides AI-based writing and reading assistance that understands context and meaning, including a writing companion that can rephrase text to convey the intended message and generate summaries. The company's tools help users read more efficiently, analyze and visualize complex knowledge structures, and apply deep learning and NLP to transform writing and comprehension for businesses and individuals.

Opaque Systems

Series A in 2022
Opaque Systems is a startup that provides secure data analytics and machine learning services in the cloud. The company specializes in enabling organizations to analyze encrypted data without exposing it in an unencrypted form, thus ensuring data privacy. Their platform, built on the open-source MC2 Platform, incorporates advanced technologies such as secure hardware enclaves and cryptographic fortification. This allows users to utilize familiar tools like Apache Spark for various data-related tasks, including running SQL queries, performing complex analytics, and executing ETL (extract, transform, load) pipelines on encrypted data. Additionally, Opaque facilitates the secure training of machine learning models on sensitive data, enhancing privacy through federated learning and server-side aggregation of client updates.

Peptone

Series A in 2022
Peptone Ltd is a London-based company founded in 2016 that specializes in artificial intelligence solutions aimed at solving protein developability challenges within the biotechnology, biopharmaceutical, and life sciences sectors. The company offers a range of services, including antibody design and optimization, an extensive protein database, automated thermos-stability engineering, and the deployment of hybrid AI solutions. Its proprietary platform, CassandraAI, focuses on silico protein engineering, allowing for the efficient handling of complex tasks related to anomaly detection and failure risk assessment in protein development. By streamlining these processes, Peptone enables users to identify optimal pathways for therapeutic discovery, facilitating the generation of lab-quality molecules more swiftly and cost-effectively than traditional methods in the pharmaceutical industry.

Voltron Data

Series A in 2022
Voltron Data develops tools to enhance the existing data analytics ecosystem. It focuses on improving efficiency by creating modular and composable analytics building blocks.

Voltron Data

Seed Round in 2022
Voltron Data develops tools to enhance the existing data analytics ecosystem. It focuses on improving efficiency by creating modular and composable analytics building blocks.

AI21 Labs

Venture Round in 2021
AI21 Labs is an Israeli artificial intelligence company that develops generative AI and large language models along with tools to understand and generate natural language. Founded in 2017 and based in Tel Aviv-Yafo, it provides AI-based writing and reading assistance that understands context and meaning, including a writing companion that can rephrase text to convey the intended message and generate summaries. The company's tools help users read more efficiently, analyze and visualize complex knowledge structures, and apply deep learning and NLP to transform writing and comprehension for businesses and individuals.

Speedata

Series A in 2021
Speedata is a technology company that specializes in developing advanced processors tailored for big data analytics across various industries. Its flagship product, the Analytics Processing Unit (APU), is engineered to optimize database and analytic workloads in datacenter and cloud environments. This innovative processor significantly enhances performance while also reducing costs, power consumption, and physical space requirements. The APU is designed to work seamlessly with existing software frameworks, allowing users to improve performance dramatically without altering their code base. By efficiently decompressing, decoding, and processing records, Speedata's technology effectively addresses the challenges associated with writing and storing intermediate data, thereby enabling clients to execute complex analytics queries more efficiently.
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