Spark Capital

Spark Capital Partners, LLC is a venture capital firm founded in 2005 with offices in San Francisco, Boston, and New York City. The firm specializes in growth capital investments, focusing on early-stage companies across a wide range of sectors, including consumer products, fintech, software, media, and e-commerce. Spark Capital is known for its unique approach to investing, emphasizing support for exceptional products and the creative individuals behind them. The firm embraces risk and aims to help founders achieve success on their own terms, often taking board seats in its portfolio companies. Spark Capital has backed notable companies such as Twitter, Discord, and Warby Parker, demonstrating its commitment to innovative ventures. With investment amounts ranging from $0.5 million to $30 million, the firm targets businesses with revenues up to $1 billion, primarily within the United States but with a global outlook.

Coen Armstrong Ph.D

Investor

Paul Conway

General Partner and CFO

Alex Finkelstein

Co-Founder and General Partner

Clay Fisher

General Partner and Board Observer

Aaditya Jain

Investor, Growth

James Kuklinski

General Partner

Alexa Lyons

Co-CFO and General Partner

Connor Mullaney

Investor

Jeremy Philips

General Partner, Growth

Santo Politi

Co-Founder and General Partner

Yasmin Razavi

General Partner

Will Reed

General Partner

Natalie Sandman

General Partner, Early

Kevin Thau

General Partner

Natalie Vais

General Partner

Nabeel Hyatt

General Partner

Past deals in Open Source

Chainguard

Series D in 2025
Chainguard specializes in supply chain security by providing hardened, minimal container images that are continuously rebuilt from source in secure environments. These images are designed to eliminate known vulnerabilities and ensure end-to-end integrity, featuring built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA) provenance. In addition to its container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, which are also built securely from source in SLSA-certified infrastructure. The company emphasizes its commitment to the open source community by contributing to and maintaining several widely used open source projects. By applying zero-trust principles and utilizing compliant-build systems, Chainguard enables businesses to effectively manage their supply chain security risks throughout the software lifecycle.

Chainguard

Series C in 2024
Chainguard specializes in supply chain security by providing hardened, minimal container images that are continuously rebuilt from source in secure environments. These images are designed to eliminate known vulnerabilities and ensure end-to-end integrity, featuring built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA) provenance. In addition to its container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, which are also built securely from source in SLSA-certified infrastructure. The company emphasizes its commitment to the open source community by contributing to and maintaining several widely used open source projects. By applying zero-trust principles and utilizing compliant-build systems, Chainguard enables businesses to effectively manage their supply chain security risks throughout the software lifecycle.

Qdrant

Series A in 2024
Qdrant is an open-source vector database developed in Rust that specializes in high-dimensional vector similarity search. It provides an API service that enables users to leverage embeddings and neural network encoders for various applications, including matching, searching, and recommending. Qdrant is designed to facilitate the effective utilization of unstructured data, making it suitable for next-generation artificial intelligence applications. Additionally, it offers a managed cloud solution, allowing users to adopt the technology more easily while minimizing resource requirements and costs.

Chainguard

Series B in 2023
Chainguard specializes in supply chain security by providing hardened, minimal container images that are continuously rebuilt from source in secure environments. These images are designed to eliminate known vulnerabilities and ensure end-to-end integrity, featuring built-in cryptographic signatures, Software Bill of Materials (SBOMs), and Supply-chain Levels for Software Artifacts (SLSA) provenance. In addition to its container images, Chainguard offers a catalog of guarded Java dependencies through its Chainguard Libraries, which are also built securely from source in SLSA-certified infrastructure. The company emphasizes its commitment to the open source community by contributing to and maintaining several widely used open source projects. By applying zero-trust principles and utilizing compliant-build systems, Chainguard enables businesses to effectively manage their supply chain security risks throughout the software lifecycle.

Unleash

Series A in 2022
Unleash is an enterprise-focused open source feature management platform that enables developers and organizations to manage product features effectively. The platform facilitates controlled rollouts of new features through feature toggles, allowing users to deploy updates in a systematic manner. Additionally, it supports experimentation by enabling the testing of multiple variants of features, ensuring that clients can assess performance without disrupting the overall functionality of their applications. This capability is crucial for organizations seeking to enhance their product deployment processes while maintaining stability and performance.

Chronosphere

Series C in 2021
Chronosphere, Inc. is a technology company that specializes in developing an open-source metrics data platform known as M3. Founded in 2019 and headquartered in New York, the company has additional offices in Seattle, Vilnius, and Warsaw. Chronosphere's platform provides comprehensive monitoring solutions for infrastructure, applications, and business metrics, enabling organizations to manage the complexities of cloud-native environments. By offering tools that help DevOps teams quickly identify and resolve issues across various layers of the technology stack, Chronosphere enhances operational reliability and supports data-driven decision-making. The platform is utilized by prominent brands to improve developer productivity, control costs, and enhance customer satisfaction.

SiFive

Series E in 2020
SiFive, Inc. specializes in designing and manufacturing semiconductors, focusing on RISC-V architecture. The company offers a range of products including multi-core application processors, embedded microcontrollers, and customized silicon solutions. Its platform enables the development of chips for various applications, such as microcontrollers, the Internet of Things (IoT), and wearables, emphasizing the integration of open-source principles and software automation to streamline hardware development. SiFive aims to democratize access to custom silicon, allowing system designers to innovate more rapidly and cost-effectively. Founded in 2015 and headquartered in San Mateo, California, SiFive also has development offices and locations in several regions including Oregon, Texas, India, Taiwan, and France. The company has established a strategic partnership with QuickLogic Corporation to further enhance its offerings in the semiconductor industry.

SiFive

Series D in 2019
SiFive, Inc. specializes in designing and manufacturing semiconductors, focusing on RISC-V architecture. The company offers a range of products including multi-core application processors, embedded microcontrollers, and customized silicon solutions. Its platform enables the development of chips for various applications, such as microcontrollers, the Internet of Things (IoT), and wearables, emphasizing the integration of open-source principles and software automation to streamline hardware development. SiFive aims to democratize access to custom silicon, allowing system designers to innovate more rapidly and cost-effectively. Founded in 2015 and headquartered in San Mateo, California, SiFive also has development offices and locations in several regions including Oregon, Texas, India, Taiwan, and France. The company has established a strategic partnership with QuickLogic Corporation to further enhance its offerings in the semiconductor industry.

SiFive

Series C in 2018
SiFive, Inc. specializes in designing and manufacturing semiconductors, focusing on RISC-V architecture. The company offers a range of products including multi-core application processors, embedded microcontrollers, and customized silicon solutions. Its platform enables the development of chips for various applications, such as microcontrollers, the Internet of Things (IoT), and wearables, emphasizing the integration of open-source principles and software automation to streamline hardware development. SiFive aims to democratize access to custom silicon, allowing system designers to innovate more rapidly and cost-effectively. Founded in 2015 and headquartered in San Mateo, California, SiFive also has development offices and locations in several regions including Oregon, Texas, India, Taiwan, and France. The company has established a strategic partnership with QuickLogic Corporation to further enhance its offerings in the semiconductor industry.

SiFive

Series B in 2017
SiFive, Inc. specializes in designing and manufacturing semiconductors, focusing on RISC-V architecture. The company offers a range of products including multi-core application processors, embedded microcontrollers, and customized silicon solutions. Its platform enables the development of chips for various applications, such as microcontrollers, the Internet of Things (IoT), and wearables, emphasizing the integration of open-source principles and software automation to streamline hardware development. SiFive aims to democratize access to custom silicon, allowing system designers to innovate more rapidly and cost-effectively. Founded in 2015 and headquartered in San Mateo, California, SiFive also has development offices and locations in several regions including Oregon, Texas, India, Taiwan, and France. The company has established a strategic partnership with QuickLogic Corporation to further enhance its offerings in the semiconductor industry.

Boxee

Series C in 2011
Boxee is a media player software platform that combines locally stored media with Internet streaming content and social networking features. It allows users to share their viewing habits with friends on platforms like Twitter and Facebook. The software is partially open-source, enabling users to develop their own applications, plug-ins, and skins. The framework of Boxee is derived from the Xbox Media Center project, originally created by home theater enthusiasts. In addition to the software, Boxee has developed an electronic device that connects phones to televisions, allowing users to easily access and display shows, movies, and clips from the Internet on their TVs.

Boxee

Series B in 2009
Boxee is a media player software platform that combines locally stored media with Internet streaming content and social networking features. It allows users to share their viewing habits with friends on platforms like Twitter and Facebook. The software is partially open-source, enabling users to develop their own applications, plug-ins, and skins. The framework of Boxee is derived from the Xbox Media Center project, originally created by home theater enthusiasts. In addition to the software, Boxee has developed an electronic device that connects phones to televisions, allowing users to easily access and display shows, movies, and clips from the Internet on their TVs.

Boxee

Series A in 2008
Boxee is a media player software platform that combines locally stored media with Internet streaming content and social networking features. It allows users to share their viewing habits with friends on platforms like Twitter and Facebook. The software is partially open-source, enabling users to develop their own applications, plug-ins, and skins. The framework of Boxee is derived from the Xbox Media Center project, originally created by home theater enthusiasts. In addition to the software, Boxee has developed an electronic device that connects phones to televisions, allowing users to easily access and display shows, movies, and clips from the Internet on their TVs.
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