Felicis

Felicis Ventures, established in 2006 and based in Menlo Park, California, is a venture capital firm that invests in early-stage, innovative companies. The firm focuses on backing founders who are building transformative businesses across various sectors, including AI, health, and security. Felicis provides more than just capital, offering active mentoring and advisory services to support its portfolio companies. Since inception, Felicis has invested in over 120 technology companies, with 50 having been acquired or gone public.

Nicole Bae

Partner, Operations

Daniel Bartus

Partner

Kristin Beach

CFO, COO and Partner

Maddie Chavez

Partner, Operations

Tobi Coker

Senior Associate

Viviana Faga

General Partner

Gabriella Garcia

Deal Partner

Ryan Isono

Vice President

Dasha Maggio

Co-COO

Astasia Myers

General Partner

Niki Pezeshki

General Partner

Larissa Rainey

Operating Partner

Javier Soltero

Senior Venture Partner

Jake Storm

Vice President

Victoria Treyger

General Partner and Managing Director

Mischa Vaughn

Partner, Head of Content

Past deals in API

Supabase

Series D in 2025
Supabase Pte. Ltd. is a company that provides an open-source alternative to Firebase, designed to enhance PostgreSQL databases with real-time and RESTful APIs without requiring extensive coding. Founded in 2020 and based in Singapore, Supabase offers a suite of tools to assist developers, including a Postgres database with self-documenting APIs, user authentication, instant APIs, Edge Functions, real-time subscriptions, and storage solutions. The platform enables users to manage database changes, perform queries with filtering and pagination, and handle user permissions through an intuitive interface. By focusing on simplifying database management and enhancing scalability, Supabase allows developers to concentrate on building their core products efficiently.

Deep Infra

Series A in 2025
Deep Infra is a company that offers a self-serve machine learning platform focused on delivering cost-effective and scalable machine-learning models for deep-learning applications. Its platform enables users to transform models into scalable APIs with minimal effort, facilitating deployment for various applications such as token classification, text-to-image generation, object detection, automatic speech recognition, and text generation. Deep Infra operates on a pay-per-use pricing model, allowing users to run AI models through a straightforward API. The company specializes in serverless machine-learning inference, ensuring high-performance deployment while providing benefits such as low latency, cost efficiency, and automatic scaling, making advanced machine-learning capabilities more accessible to businesses.

n8n

Series B in 2025
n8n GmbH, founded in 2019 and based in Berlin, Germany, specializes in developing an open-source workflow automation tool that allows users to connect various applications and automate business processes. Its platform features a visual, node-based interface that enables users to create custom workflows without requiring extensive coding skills. n8n's solution facilitates the automation of daily tasks, data synchronization, and integration of AI capabilities, making it accessible for businesses to streamline their operations. The tool also offers features for notification management, security access, and data storage, allowing clients to manage and synchronize information across different applications and databases efficiently.

Nilus

Venture Round in 2025
Nilus is a platform that automates payment operations, providing solutions for reconciliation, reporting, and payment workflows. By integrating data from various payment providers, banks, and enterprise resource planning systems, Nilus offers a singular source of financial truth for organizations, enhancing transparency and control over financial activities. The platform enables finance teams to streamline their operations through automated workflows, pre-built data connectors, and advanced reconciliation algorithms, reducing reliance on technical teams and manual processes. With features that include custom payment flows, wallet launching, and transaction attribution, Nilus empowers clients to automate their financial operations effectively.

Stainless

Series A in 2024
Generate best-in-class SDKs with Stainless. Developers expect your API to come with a typesafe client library in their language. With Stainless, you can deliver idiomatic SDKs while you stay focused on building the API.

Supabase

Series C in 2024
Supabase Pte. Ltd. is a company that provides an open-source alternative to Firebase, designed to enhance PostgreSQL databases with real-time and RESTful APIs without requiring extensive coding. Founded in 2020 and based in Singapore, Supabase offers a suite of tools to assist developers, including a Postgres database with self-documenting APIs, user authentication, instant APIs, Edge Functions, real-time subscriptions, and storage solutions. The platform enables users to manage database changes, perform queries with filtering and pagination, and handle user permissions through an intuitive interface. By focusing on simplifying database management and enhancing scalability, Supabase allows developers to concentrate on building their core products efficiently.

Letta

Seed Round in 2024
Letta is a technology company that specializes in memory management solutions for artificial intelligence (AI) models. It offers two primary products: Hosted Cloud and Lett_API. Hosted Cloud is a scalable service that creates, deploys, and manages agents in the cloud, while Lett_API enhances language learning models with reasoning capabilities and long-term memory storage, powered by MemGPT. Letta's platform provides accessible APIs, long-term data storage, and developer tools, enabling users to efficiently build and manage intelligent AI applications.

Operant

Series A in 2024
Operant is a developer of an application protection platform tailored for cloud-native environments. The platform provides automatic discovery and analytics, along with real-time risk rankings and intelligent runtime enforcement. It offers comprehensive catalogs for APIs, services, and role-based access controls across various clusters and cloud infrastructures, facilitating quick visibility into API endpoints, service interactions, and security vulnerabilities. By utilizing risk-weighted scorecards that prioritize security gaps based on criticality, access, and exposure, Operant effectively highlights the most severe security issues. Additionally, the platform employs contextual controls to enforce fine-grained security constraints on legacy endpoints, data storage, and APIs, ensuring robust protection across all interactions in a seamless manner.

n8n

Series A in 2024
n8n GmbH, founded in 2019 and based in Berlin, Germany, specializes in developing an open-source workflow automation tool that allows users to connect various applications and automate business processes. Its platform features a visual, node-based interface that enables users to create custom workflows without requiring extensive coding skills. n8n's solution facilitates the automation of daily tasks, data synchronization, and integration of AI capabilities, making it accessible for businesses to streamline their operations. The tool also offers features for notification management, security access, and data storage, allowing clients to manage and synchronize information across different applications and databases efficiently.

Deep Infra

Seed Round in 2023
Deep Infra is a company that offers a self-serve machine learning platform focused on delivering cost-effective and scalable machine-learning models for deep-learning applications. Its platform enables users to transform models into scalable APIs with minimal effort, facilitating deployment for various applications such as token classification, text-to-image generation, object detection, automatic speech recognition, and text generation. Deep Infra operates on a pay-per-use pricing model, allowing users to run AI models through a straightforward API. The company specializes in serverless machine-learning inference, ensuring high-performance deployment while providing benefits such as low latency, cost efficiency, and automatic scaling, making advanced machine-learning capabilities more accessible to businesses.

Operant

Seed Round in 2023
Operant is a developer of an application protection platform tailored for cloud-native environments. The platform provides automatic discovery and analytics, along with real-time risk rankings and intelligent runtime enforcement. It offers comprehensive catalogs for APIs, services, and role-based access controls across various clusters and cloud infrastructures, facilitating quick visibility into API endpoints, service interactions, and security vulnerabilities. By utilizing risk-weighted scorecards that prioritize security gaps based on criticality, access, and exposure, Operant effectively highlights the most severe security issues. Additionally, the platform employs contextual controls to enforce fine-grained security constraints on legacy endpoints, data storage, and APIs, ensuring robust protection across all interactions in a seamless manner.

Poly

Seed Round in 2022
Poly is building a better cloud hosting service for your personal files and media, that lets you search in intuitive natural language, browse and tag things, and sync from your favorite AI services. All with a tool that feels fast and native.

Rye

Seed Round in 2022
Rye develops a commerce platform designed to assist organizations in creating and scaling their eCommerce workflows. By offering a suite of developer tools and APIs, Rye enables businesses to sell products from various merchants and build comprehensive, native commerce experiences efficiently. The platform provides the flexibility and agility necessary for businesses to thrive in a competitive marketplace, allowing them to adapt quickly to changing demands and enhance their operational capabilities.

Meilisearch

Series A in 2022
Meilisearch is a developer of an open-source search engine API platform that offers a fast and customizable solution for users seeking an efficient search experience. The platform leverages advanced algorithms and natural language processing capabilities to deliver relevant search results, effectively managing challenges such as typos, synonyms, and n-grams. Its language-agnostic design ensures that clients can cater to diverse user needs, ultimately enhancing conversion rates and overall user experience. By providing a readily deployable alternative for businesses, Meilisearch positions itself as a valuable tool for those aiming to improve their search functionalities.

Goldsky

Seed Round in 2022
Goldsky is a developer-focused platform that enables the creation of real-time application programming interfaces (APIs) using data from Ethereum and other blockchain networks. The company's software simplifies the process for developers by providing the necessary tools to build reliable, real-time applications without the need for extensive data manipulation in their front-ends or back-ends. By streamlining access to blockchain data, Goldsky empowers developers to quickly and efficiently develop applications that rely on real-time information.

PreQL

Seed Round in 2022
PreQL, founded in 2022 and headquartered in Brooklyn, New York, specializes in developing an open-source interactive visualization tool that enhances data management for businesses. This tool integrates seamlessly with the modern data stack, enabling business users to effectively manage and visualize business metrics. By utilizing an intuitive interface with dropdown menus, PreQL allows users to organize and display data in populated tables without the need for complex queries. The platform caches data and facilitates query-less requests to the backend, providing developers with a user-friendly means to visualize databases and generate SQL queries efficiently.

Pipedream

Series A in 2022
Pipedream is an online integration platform founded in 2018 by Jason Endo, Dan Hsiung, TJ Koblentz, and Tod Sacerdoti in San Francisco, California. It enables developers to connect APIs and create workflows by selecting triggers, such as HTTP requests and app events, and adding customizable steps. The platform generates production-ready code quickly and includes features like state management, authentication, observability, and error handling. By simplifying the workflow creation process, Pipedream allows developers to focus on building applications without the need to manage servers or cloud resources.

Column Tax

Series A in 2022
Column Tax is a technology company that provides a platform for mobile banks and fintech companies, allowing them to integrate advanced tax features for their customers. Through its application programming interface (API), Column Tax enables these financial institutions to facilitate tax-related services, such as direct deposits of tax refunds and secure tax payments from their accounts. This integration aims to enhance the user experience by offering personalized and efficient income tax solutions, thereby simplifying tax management for end-users.

Supabase

Series B in 2022
Supabase Pte. Ltd. is a company that provides an open-source alternative to Firebase, designed to enhance PostgreSQL databases with real-time and RESTful APIs without requiring extensive coding. Founded in 2020 and based in Singapore, Supabase offers a suite of tools to assist developers, including a Postgres database with self-documenting APIs, user authentication, instant APIs, Edge Functions, real-time subscriptions, and storage solutions. The platform enables users to manage database changes, perform queries with filtering and pagination, and handle user permissions through an intuitive interface. By focusing on simplifying database management and enhancing scalability, Supabase allows developers to concentrate on building their core products efficiently.

n8n

Series A in 2021
n8n GmbH, founded in 2019 and based in Berlin, Germany, specializes in developing an open-source workflow automation tool that allows users to connect various applications and automate business processes. Its platform features a visual, node-based interface that enables users to create custom workflows without requiring extensive coding skills. n8n's solution facilitates the automation of daily tasks, data synchronization, and integration of AI capabilities, making it accessible for businesses to streamline their operations. The tool also offers features for notification management, security access, and data storage, allowing clients to manage and synchronize information across different applications and databases efficiently.

Stream

Series B in 2021
Stream.io, Inc. specializes in developing an open-source platform that enables the creation of customizable newsfeeds and messaging applications. The company provides a range of application programming interfaces (APIs) that allow product teams to implement chat features and activity feeds tailored to their specific needs. Its offerings include flat feeds for displaying followed content, aggregated feeds for grouping similar content, notification feeds for site alerts, and profile pages for user activity storage. Stream's solutions cater to various sectors, including finance, healthcare, dating, education, and social networking, facilitating community engagement. Established in 2014, the company is headquartered in Boulder, Colorado, with an additional office located in Amsterdam, the Netherlands. Stream’s products are recognized for their scalability and security, serving over a billion end-users globally.

KYKLO

Seed Round in 2020
KYKLO Inc, established in 2015, is a technology company that specializes in cloud-based sales operation management software for the electrical, mechanical, and automation markets. Headquartered in New York, with an additional office in Bangkok, Thailand, KYKLO offers a digital platform that enables electrical and automation product distributors to engage with customers and conduct business more efficiently. The platform provides a suite of services, including product content management, search engine optimization, suggested add-on products, and a customer assistance application. KYKLO's software is designed to help distributors create their own white-labeled e-commerce webstores, providing access to millions of product SKUs and facilitating the digitization of the wholesale distribution market.

Ascend.io

Seed Round in 2015
Ascend.io, based in Palo Alto, California, offers an advanced platform designed to streamline big data analytics and engineering workflows. The platform integrates essential capabilities such as data ingestion, transformation, delivery, orchestration, and observability into a unified solution, enabling data teams to operate significantly faster. By leveraging declarative configurations and automation, Ascend.io manages cloud infrastructure, optimizes data pipelines, and reduces maintenance throughout the data lifecycle. This innovative approach supports business managers in initiating projects and making informed decisions by simplifying connections to various applications. Recognized as a 2021 Gartner Cool Vendor, Ascend.io is supported by prominent venture capital firms and notable advisors in the tech industry.

Adyen

Series B in 2014
Adyen is a global financial technology platform that specializes in providing integrated payment solutions for businesses. The company enables merchants to accept e-commerce, mobile, and point-of-sale payments across multiple countries, utilizing a variety of payment methods. Initially focused on gateway and payment processing services, Adyen expanded its offerings to include merchant acquiring services, reflecting its commitment to comprehensive payment solutions. The company holds a banking license to enhance the settlement processes for merchant accounts. With a presence in numerous markets, Adyen serves a diverse range of clients, including prominent companies such as Facebook, Uber, H&M, eBay, and Microsoft, empowering them to achieve their financial goals efficiently.

Plaid

Series A in 2014
Plaid Inc. is a technology company that facilitates the connection between consumers' bank accounts and applications, aiming to democratize financial services through advanced technological solutions. Founded in 2012 and headquartered in San Francisco, it provides a comprehensive suite of APIs that enable developers to create financial products connecting users with traditional financial institutions. Plaid's offerings include tools for accessing transaction history and balance data, authenticating bank accounts for payments, verifying identities, and confirming real-time account balances and income. These products support various applications in personal finances, consumer payments, lending, banking, and business finance. With a focus on enhancing both consumer experiences and developer capabilities, Plaid serves a diverse range of clients, including Fortune 50 companies, positioning itself as a vital infrastructure provider in the digital financial landscape.

BitPay

Series A in 2014
BitPay, Inc. is a company that specializes in providing enterprise-grade bitcoin payment solutions tailored for businesses and organizations. Founded in 2011 and headquartered in Alpharetta, Georgia, BitPay offers a range of services including a RESTful API and a bitcoin payment gateway API, which facilitate secure payment processing. The company also supports native payment protocols, signed payment requests, and direct payment communication. Additionally, BitPay provides Copay, a bitcoin wallet solution that integrates Intel hardware security for enhanced protection of private keys and transaction signing. Its BitPay Send service enables organizations to pay employees, vendors, and contractors using cryptocurrency. The company has established a strategic processing relationship with Aliant Payment Systems to further enhance its offerings in the blockchain payments technology sector.

Iodine

Seed Round in 2014
Iodine, Inc. is a San Francisco-based company that specializes in providing online healthcare data to empower consumers in making informed decisions about medications. Founded in 2013, the company utilizes clinical data from open government datasets, such as those from the FDA and CMS, to develop tools that enhance drug-related decision-making and adherence to prescribed therapies. One of its key offerings is Med Labels, which allows users to search and read FDA product labels online. Iodine addresses a significant gap in the market, as many internet users seek reliable drug information but often find existing resources inadequate. By focusing on user needs rather than advertising revenue, Iodine aims to improve health outcomes and optimize therapeutic choices for individuals navigating their healthcare options.

Plaid

Seed Round in 2013
Plaid Inc. is a technology company that facilitates the connection between consumers' bank accounts and applications, aiming to democratize financial services through advanced technological solutions. Founded in 2012 and headquartered in San Francisco, it provides a comprehensive suite of APIs that enable developers to create financial products connecting users with traditional financial institutions. Plaid's offerings include tools for accessing transaction history and balance data, authenticating bank accounts for payments, verifying identities, and confirming real-time account balances and income. These products support various applications in personal finances, consumer payments, lending, banking, and business finance. With a focus on enhancing both consumer experiences and developer capabilities, Plaid serves a diverse range of clients, including Fortune 50 companies, positioning itself as a vital infrastructure provider in the digital financial landscape.

Hailo Network

Venture Round in 2013
Hailo Network, established in 1947, is a global manufacturer and supplier of ladder systems, steps, and waste bins, renowned for its innovative products and safety features. The company, headquartered in Germany, operates in over 60 countries worldwide, distributing its products through a extensive network of retailers and wholesalers. Hailo's commitment to quality, safety, and innovation has positioned it as a leading provider in its industry.

Sano

Seed Round in 2013
Sano is focused on developing a small, wearable transdermal biosensor patch that continuously captures and transmits blood chemistry data. This innovative technology measures interstitial fluid in the skin's outer layer, allowing for continuous glucose monitoring. By providing real-time data, Sano's solution enables individuals to make more informed decisions regarding their diet and exercise habits. The collected data can be accessed through a third-party development and analytical platform, referred to as the API for the bloodstream, enhancing users' ability to optimize their health behaviors.

CardSpring

Series A in 2012
CardSpring is a technology company that provides an application platform designed for web and mobile developers to create applications for credit cards and various payment methods. By securely integrating with payment networks, CardSpring offers a robust Application Programming Interface (API) that allows developers to link online applications with specific payment events. This capability enables the development of innovative services such as electronic coupons, loyalty programs, and virtual currencies, facilitating stronger connections between merchants and their customers. Through its platform, CardSpring aims to enhance the functionality of credit and debit cards, empowering businesses to grow and engage with their clientele more effectively.

CardSpring

Seed Round in 2011
CardSpring is a technology company that provides an application platform designed for web and mobile developers to create applications for credit cards and various payment methods. By securely integrating with payment networks, CardSpring offers a robust Application Programming Interface (API) that allows developers to link online applications with specific payment events. This capability enables the development of innovative services such as electronic coupons, loyalty programs, and virtual currencies, facilitating stronger connections between merchants and their customers. Through its platform, CardSpring aims to enhance the functionality of credit and debit cards, empowering businesses to grow and engage with their clientele more effectively.

Erply

Seed Round in 2010
Erply is a developer of software solutions focused on point of sale and inventory management for retail businesses. Founded in 2009 and based in London, the company provides a SaaS platform that integrates with various accounting systems and e-commerce platforms, allowing clients to manage inventory and sales across physical stores, online shops, and warehouses. The software features real-time dashboards that deliver relevant data, enabling businesses to track inventory and customer relationships effectively. Erply's solutions cater to a diverse range of sectors, including retail stores, automotive service, salons, spas, cafes, and delis, helping them streamline operations and enhance customer service.

AppJet

Convertible Note in 2009
AppJet was an online programming tool designed for building simple web applications, founded by former MIT students and backed by Y Combinator. The platform aimed to streamline the web application development process using a web-based text editor that employed JavaScript for both server and client-side programming. It provided users with various code libraries, including those for database management and Facebook API integration. To efficiently host user applications, AppJet developed a unique application virtualization system that managed processor allocation and prevented excessive resource consumption. While the platform was innovative in its approach to web app development, it appears to be inactive today, with only some legacy downloads available.

Mashery

Series B in 2008
Mashery, Inc. is a provider of cloud-based software solutions focused on API management technology and services for mid-sized and enterprise markets. Founded in 2006 and headquartered in San Francisco, California, with additional offices in Seattle, New York, Boston, and Belfast, the company offers a range of products, including the Intel Mashery API Management solutions in both SaaS and Data Center Editions, which cater to varied security and operational needs. Its API Gateway services facilitate the exposure and consumption of application services, while providing monetization opportunities and compliance solutions for organizations handling sensitive data. Mashery's services extend across multiple industries, including healthcare, finance, retail, and telecommunications, supporting over 60,000 active applications developed by more than 200,000 developers. The company became a subsidiary of TIBCO Software Inc. in 2015, enhancing its capabilities in API technology and strategy.

Mashery

Series A in 2007
Mashery, Inc. is a provider of cloud-based software solutions focused on API management technology and services for mid-sized and enterprise markets. Founded in 2006 and headquartered in San Francisco, California, with additional offices in Seattle, New York, Boston, and Belfast, the company offers a range of products, including the Intel Mashery API Management solutions in both SaaS and Data Center Editions, which cater to varied security and operational needs. Its API Gateway services facilitate the exposure and consumption of application services, while providing monetization opportunities and compliance solutions for organizations handling sensitive data. Mashery's services extend across multiple industries, including healthcare, finance, retail, and telecommunications, supporting over 60,000 active applications developed by more than 200,000 developers. The company became a subsidiary of TIBCO Software Inc. in 2015, enhancing its capabilities in API technology and strategy.

ImageShack

Series A in 2007
ImageShack is a media hosting company based in Los Gatos, California, founded in November 2003 by Alexander Levin and Jack Levin. It specializes in hosting images and videos, allowing users worldwide to upload, store, and share their media content. The company operates several platforms, including Imageshack.com and Yfrog, the latter serving as a social network for sharing images and videos. In October 2012, ImageShack introduced SkyPath, an application designed to sync with user accounts and their photo libraries. Through its services, ImageShack provides users with the tools to easily manage and share digital media.
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