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.

Lior Abraham

Venture Partner

Wayne Anderson

Venture Partner

Jon Armstrong

Venture Partner

Tamara Bain

Venture Partner

Kate Bambino

Venture Partner

Lena Belogolova

Venture Partner

Bryan Beshore

Venture Partner

Rajiv Bhat

Venture Partner

Amitav Chakravartty

Venture Partner

Bryant Chou

Venture Partner

Andrew DSouza

Venture Partner

Michael Dilworth

CFO and Partner

Kshitij Dixit

Venture Partner

Cobi Druxerman

Venture Partner

Luqui Díaz

Venture Partner

Steli Efti

Venture Partner

James Fong

Venture Partner

Taro Fukuyama

Venture Partner

Jarret Glasscock

Venture Partner

Jason Gray

Managing Partner

Alanna Gregory

Venture Partner

Ranvir Gujral

Venture Partner

Joshua Halickman

Venture Partner

Taylor Halliday

Venture Partner

Michael Heinrich

Venture Partner

Nancy Hua

Venture Partner

Albert Huang MD

Venture Partner

Faiz Jalia

Analyst

Steven Johnston

Venture Partner

Beth Kolko

Venture Partner

Jackie Kong

Venture Partner

Kwin Hultman Kramer

Venture Partner

Greg Kress

Venture Partner

Ashwin Kumar

Venture Partner

Tiffany Kuo

Venture Partner

Vanessa Lee

Venture Partner

Ilya Lichtenstein

Venture Partner

Evan Lodge

Venture Partner

Parthi Loganathan

Venture Partner

Richard Ma

Venture Partner

Ritik Malhotra

Venture Partner

Rohit Malhotra

Venture Partner

Matthew McDonald

Venture Partner

Dave Messina

General Partner

Will Mitchell

Venture Partner

Francesco Mosconi

Venture Partner

Anthony Nemitz

Venture Partner

Victor Ng

Venture Partner

Peter Nixey

Venture Partner

Eric Norman

Visiting General Partner

Will Olsen

Venture Partner

Jon Parker

Venture Partner

Amit Patel

Venture Partner

Puja Patel

Venture Partner

David Rabie

Venture Partner

Saad Rizvi

Venture Partner

Juan Salcedo

Venture Partner

Matt Schiller

Venture Partner

William Schlacks

Venture Partner

Robert Schultz

Venture Partner

Jonathan Schwartz

Venture Partner

Martin Shen

Venture Partner

Bradley Siegler

Venture Partner

Vikram Somasundaram

Venture Partner

Laks Srini

Venture Partner

Thomas Steinacher

Venture Partner

Steven Stewart

Venture Partner

Evan Stites-Clayton

Venture Partner

Brad Stronger

Venture Partner

Alexander Strunkin

Venture Partner

Ted Suzman

General Partner

Tim Suzman

General Partner

Jonathan Tang

Venture Partner

Bryan Wilcox

Venture Partner

Kitch Wilson

Venture Partner

Ray Wu

Venture Partner

Andrew Yaroshevsky

Venture Partner

Richard Yu

Venture Partner

Winston Zhang

Venture Partner

Ti Zhao

Venture Partner

Past deals in Language Processing

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.

Martin

Seed Round in 2025
Your personal voice AI.

PlayAI

Seed Round in 2024
PlayAI specializes in creating advanced AI voice models designed for fluid and emotive conversations. The platform enables businesses and developers to build engaging conversational AI experiences that enhance user interaction. By focusing on natural language processing and intuitive sequences, PlayAI aims to make human-AI interactions more accessible and effective for various applications.

Genie

Pre Seed Round in 2024
Genie is an AI software platform that engages children in personalized play through conversational artificial intelligence. It creates imaginative story worlds, plays logic puzzles, and word games to stimulate critical thinking and creativity.

Unriddle

Pre Seed Round in 2024
Unriddle accelerates scientific research by providing a unified platform for discovering, comprehending, and generating academic papers. Utilizing language models, it surfaces relevant information, suggests connections between papers, and automates routine tasks, enabling researchers to focus on higher-level insights.

Aqua Voice

Pre Seed Round in 2024
Aqua Voice develops a voice-controlled text editor that uses an Audio+LLM architecture to interpret user intent and transcribe what the user meant rather than exactly what was said. The software enables users to rephrase, shorten, or clean up text while preserving tone, and provides a workspace to collect thoughts and associated media such as photos, videos, code, music, files, and text, supporting idea organization and discovery.

Magic Loops

Seed Round in 2023
Magic Loops is a technology company that specializes in automation software. Its platform, powered by large language models and code, enables users to create and manage repeatable tasks and workflows efficiently. Key features include a user-friendly drag-and-drop interface for loop creation, a library of pre-built loops, and a community forum for collaboration. By seamlessly integrating AI-powered tools, Magic Loops helps users automate tasks, enhance productivity, and reduce manual effort in areas such as communication and data processing.

Wavelength

Seed Round in 2023
Wavelength is a chat application that enhances group messaging by integrating artificial intelligence and intuitive threading features. The platform allows users to invite an AI assistant powered by advanced technology into their conversations simply by mentioning it in the chat. This functionality enables users to interact with the AI in various ways, such as asking questions, generating creative text, and playing games, thus making group chats more engaging and enjoyable. With its user-friendly design, Wavelength aims to foster meaningful connections among friends and family, transforming traditional messaging into a fun and interactive experience.

Mano AI

Seed Round in 2023
LLMs in the Browser

PlayAI

Pre Seed Round in 2023
PlayAI specializes in creating advanced AI voice models designed for fluid and emotive conversations. The platform enables businesses and developers to build engaging conversational AI experiences that enhance user interaction. By focusing on natural language processing and intuitive sequences, PlayAI aims to make human-AI interactions more accessible and effective for various applications.

Metaphor

Seed Round in 2023
Metaphor is a language-model-based search engine that simplifies how users carry out web searches.

NuMind

Seed Round in 2023
NuMind develops a natural language processing tool that enables users to design unique machine learning models for tasks such as sentiment analysis, topic detection, and content control. Its platform allows users to import data, explore data, train, test, deploy models, and monitor them in production without requiring specialized knowledge.

NuMind

Pre Seed Round in 2022
NuMind develops a natural language processing tool that enables users to design unique machine learning models for tasks such as sentiment analysis, topic detection, and content control. Its platform allows users to import data, explore data, train, test, deploy models, and monitor them in production without requiring specialized knowledge.

Metaphor

Seed Round in 2021
Metaphor is a language-model-based search engine that simplifies how users carry out web searches.

Exa

Seed Round in 2021
Exa builds a language

Vanan Online Services

Series A in 2021
Vanan Online Services is a global provider of language support services, catering to both individual and business clients. The company specializes in a wide range of services, including audio and video transcription, certified translation, closed captioning, subtitling, document typing, and legal typing. Additionally, Vanan offers audio voiceover, video animation, and video editing services.

Vanan Online Services

Seed Round in 2019
Vanan Online Services is a global provider of language support services, catering to both individual and business clients. The company specializes in a wide range of services, including audio and video transcription, certified translation, closed captioning, subtitling, document typing, and legal typing. Additionally, Vanan offers audio voiceover, video animation, and video editing services.

Lang API

Seed Round in 2019
Lang API, founded in 2019 and based in San Francisco, California, specializes in developing translation software designed to help developers localize and internationalize applications efficiently. The company automates the translation process across a wide range of languages, including Spanish, French, Chinese, and Russian, simplifying the integration for developers. By wrapping a string in a specific function, developers can seamlessly translate content within their JavaScript and TypeScript codebases. Lang API offers flexibility in translation options, allowing users to utilize machine translations for testing purposes and opt for human translations for production environments. The company's tools aim to enhance the developer experience while ensuring that applications can effectively reach and engage users worldwide.
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