Pioneer Fund
Pioneer Fund is a San Francisco-based venture capital firm founded in 2017 that makes early-stage investments across a wide range of sectors, including consumer products and services, financial services, information technology, advanced manufacturing, blockchain, life sciences, gaming, artificial intelligence and machine learning, construction technology, education technology, fintech, agriculture technology, advertising technology, augmented reality, autonomous vehicles, legal technology, oncology, pet technology, real estate technology, ride-hailing, SaaS and supply chain technology. The firm benefits from a network of more than 420 Y Combinator alumni, enabling it to identify and support YC-backed startups.
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Past deals in Developer Tools
Browser Use
Seed Round in 2025
Browser Use is a technology company specializing in web accessibility software for AI agents. It enables AI agents to interact with websites by extracting interactive elements, managing multiple browser tabs, and supporting custom actions. The company's software combines visual understanding with HTML extraction, allowing developers to build capable web-based AI agents using various large language models.
expand.ai
Pre Seed Round in 2024
Expand.ai specializes in transforming any website into a type-safe API, facilitating seamless and secure integration. Its platform, a web scraping tool, offers customizable schemas, rigorous data quality checks, and high-speed extraction capabilities, enabling developers and businesses to efficiently access and integrate reliable web data, thereby reducing operational complexities.
Outerport
Pre Seed Round in 2024
Outerport specializes in streamlining document comprehension through advanced chain-of-memory reasoning technology. Its core product is a model registry platform, facilitating secure and efficient management and deployment of foundation model weights. This enables data scientists and engineers to swiftly load and handle models on existing cloud infrastructure or on-premise hardware, enhancing productivity.
Glasskube
Pre Seed Round in 2024
Glasskube develops a user-friendly package manager for Kubernetes, offering both GUI and CLI interfaces. Its packages are dependency-aware and GitOps ready, with automatic updates available through a central public repository.
NextUI
Seed Round in 2024
NextUI aims to help developers and businesses build effective and visually engaging applications.
Guide Labs
Pre Seed Round in 2024
Guide Labs is a software development company that specializes in creating interpretable models. These models are designed to explain their reasoning in a clear, understandable manner, making them easy to steer, debug, and align. The company's primary goal is to help developers and businesses solve errors more efficiently by providing reliable explanations for model behavior, thereby saving time and effort.
Datacurve
Pre Seed Round in 2024
Datacurve is a technology company that specializes in providing high-quality coding data for applications and large language models. The platform connects businesses with a network of skilled engineers who generate and vet data, ensuring its accuracy and diversity. By focusing on complex coding problems and frameworks, Datacurve helps organizations enhance their generative AI tools and build more capable models.
Depot
Seed Round in 2023
Depot is a developer-first build platform that uses cloud computing to speed up the software building process. It integrates with the existing container tooling ecosystem to remove compute bottlenecks and simplify learning curves, helping engineers ship features and iterate faster. The company additionally offers an image-building platform aimed at accelerating core product development, featuring optimized build computing, a speed-up system, and a drop-in replacement that speeds up Dockerfile builds and other related tasks.
Vellum
Seed Round in 2023
Vellum is a developer platform for the production of LLM apps.
Neum AI
Seed Round in 2023
Helping developers build scalable generative AI applications
Positional
Seed Round in 2023
Positional is a company that specializes in developing a modern platform designed for content and Search Engine Optimization (SEO) teams. Over the past decade, the team has acquired extensive experience in building and scaling content channels across competitive sectors such as insurance, personal loans, and B2B SaaS. Positional's platform offers a comprehensive set of tools that facilitate the rapid planning of topic clusters, including instant keyword generation and structured topic outlines. These features empower content teams to efficiently scale their channels and enhance traffic through organic search, providing a valuable resource for businesses seeking to improve their online presence.
Recall.ai
Seed Round in 2022
Recall.ai is a software Development company.
SigmaOS
Seed Round in 2022
SigmaOS develops a specialized browser platform aimed at enhancing productivity for founders, researchers, and content creators. Its browser enables users to consolidate their work within a single window, providing an alternative tool for web-based tasks.
Instant
Venture Round in 2022
Instant is a company that provides a real-time client-side database for building collaborative applications. It offers a browser-native SDK with support for relational queries, transactions, authentication, permissions, offline functionality, and real-time updates, enabling developers to build responsive user experiences by handling complex data operations on the client side.
Mito
Seed Round in 2022
Mito is a technology company offering cloud-based data analysis tools and model collaboration software. Its platform enables Python-based data analysis in the cloud, supporting data science workflows. The company also develops a spreadsheet collaboration tool that helps teams review and understand changes in models, compare current versions with prior ones, detect direct and indirect changes, and streamline feedback through comments and task assignments. By combining data analysis capabilities with collaborative model review, Mito aims to accelerate insights, improve accuracy, and enhance team productivity for data-driven organizations.
Diversion
Seed Round in 2022
Diversion develops a cutting-edge code management platform that enhances collaboration among software development teams. Its platform offers synchronized environments, custom metadata for repository objects, and a cloud workspace, ensuring secure and efficient collaboration on large-scale code bases while improving developer experience.
Cypher Wallet
Seed Round in 2022
For consumers, Cypher offers an EVM & Cosmos noncustodial wallet & crypto card allow a one-stop-shop for purchasing, bridging, staking, swapping and off-ramping crypto
For developers, Cypher offers an seamless onboarding SDK for any dApp in addition to a Push SDK that allows on-chain events to be converted into human, readable mobile push notifications
Hyperbeam
Venture Round in 2022
Hyperbeam is a platform that enables developers to integrate multiplayer web browsers into their applications. It synchronizes audio and video among multiple participants, facilitating real-time collaboration and interaction online.
ContainIQ
Seed Round in 2021
ContainIQ is a Kubernetes native monitoring and tracing platform ContainIQ helps teams to track and observe Kubernetes core metrics, events, and logs. It helps them monitor the health of the cluster with pre-built dashboards and easy-to-set monitors.
DeepSource
Seed Round in 2020
DeepSource is a modern static analysis platform designed to enhance code quality and security for software development teams. It continuously analyzes code to identify security vulnerabilities, performance issues, bug risks, and anti-patterns, enabling developers to discover and automatically resolve these issues before deploying code to production. The platform serves as a central hub for organizations, providing the necessary tools to ensure that software is maintainable and secure. By equipping developers with insights into potential bugs and security risks, DeepSource facilitates informed decision-making and prioritization in the development process.
DeepSource
Seed Round in 2020
DeepSource is a modern static analysis platform designed to enhance code quality and security for software development teams. It continuously analyzes code to identify security vulnerabilities, performance issues, bug risks, and anti-patterns, enabling developers to discover and automatically resolve these issues before deploying code to production. The platform serves as a central hub for organizations, providing the necessary tools to ensure that software is maintainable and secure. By equipping developers with insights into potential bugs and security risks, DeepSource facilitates informed decision-making and prioritization in the development process.
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