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Pioneer Fund — Portfolio, Page 25

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

828
Companies
$3.6B
Total invested
$5.0M
Avg. check
43
Industries
Artificial Intelligence (AI) 13Information Technology 7Software 4Developer Tools 4Biotechnology 3Internet 3+37 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Portfolio companies

Showing 577–600 of 828
Happenstance
April 2025

Happenstance is people search powered by artificial intelligence.

Artificial Intelligence (AI)Seed
careCycle
April 2025

careCycle is an AI workforce for Medicare agencies and FMOs, supporting top agencies in their operations.

Artificial Intelligence (AI) · San Francisco$2.0M Seed
Reality Defender
April 2025

Reality Defender is a deep-fake and AI-generated media detection platform that helps to detect AI-generated and manipulated content.

Artificial Intelligence (AI) · New YorkSeries Unknown
ImmuneBridge
April 2025

ImmuneBridge is developing allogeneic immunotherapies for cancer.

Biotechnology · San Francisco$5.6M Series Unknown
Flagright
March 2025

Flagright delivers AI-native transaction monitoring and AML compliance solutions through its highly customizable, API-first platform.

Compliance · San Francisco$4.3M Seed
Juris Correspondente
March 2025

Juris Correspondente is a platform connecting lawyers across Brazil, enabling them to offer and find corresponding legal services.

Internet · Belo Horizonte$625K Pre-Seed
Olio Labs
March 2025

Olio Labs utilizes AI for combo therapeutics, optimizing and minimizing side effects through automated discovery of protein interactions.

Artificial Intelligence (AI) · California City$4.5M Seed
Persist AI
March 2025

Persist AI is a biotechnology company that builds long-acting microsphere formulations.

Artificial Intelligence (AI) · West Sacramento$12.0M Series A
Ryse
March 2025

Ryse is a marketplace for real estate operators to sell their lease assets to capital markets investors

Information Technology · New York$5.9M Series Unknown
Pave Robotics
March 2025

Pave Robotics develops autonomous robots that detect, map, and seal pavement cracks to support automated road maintenance.

Robotics · San Jose$5.0M Seed
Leaping AI
March 2025

Leaping AI develops AI-powered voice agents that are human-like to automate center operations for businesses.

Artificial Intelligence (AI) · San Francisco$4.7M Seed
Mastra
March 2025

Mastra is a Typescript framework to build AI agents

Artificial Intelligence (AI) · San Francisco$13.0M Pre-Seed
Osmosis AI
March 2025

Osmosis enables real-time reinforcement learning for AI agents.

Artificial Intelligence (AI) · San Francisco$500K Seed
Red Barn Robotics
March 2025

Red Barn Robotics provides development of autonomous weeding robots to remove weeds from farms.

AgTech · Seattle$500K Pre-Seed
TrainLoop
March 2025

TrainLoop can assist developers in improving DeepSeek-R1 and other reasoning models.

Information Technology · San Francisco$500K Pre-Seed
emojis.com
March 2025

emojis.com empowers small businesses with an AI graphic designer to create their brand identity without high costs.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Mentra
March 2025

Mentra is a wearable technology company that develops smart glasses based on augmented reality and AI interface technologies.

Artificial Intelligence (AI) · San Francisco$8.0M Seed
Subtrace
March 2025

Subtrace empowers developers to effortlessly monitor all production requests with just one command

Developer Tools · San Francisco$500K Pre-Seed
Vocality Health
March 2025

Vocality Health is a Voice AI platform for medical language translation, enhancing communication in healthcare.

Artificial Intelligence (AI)$500K Pre-Seed
Onyx
March 2025

Open source Enterprise Search & AI agents

Generative AI · San Francisco$10.0M Seed
Enhanced Radar
March 2025

Enhanced Radar is an Airlines and Aviation Technology firm offering AI for air traffic control.

Aerospace · San Francisco$500K Pre-Seed
Promptless
March 2025

Promptless is an AI-driven collaborator that seamlessly updates documents intended for customer engagement.

Developer Tools · San Francisco$500K Pre-Seed
assistant-ui
March 2025

assistant-ui software development company that provides app developers with AI chat programs that can be added to the apps.

Apps · San Francisco$500K Pre-Seed
Trata
March 2025

Trata is a financial analysis company that provides unbiased research and analytics of hedge funds.

Analytics · San Francisco$500K Pre-Seed

Where Pioneer Fund invests

Artificial Intelligence (AI)13
Information Technology7
Software4
Developer Tools4
Biotechnology3
Internet3

About Pioneer Fund's portfolio

How many companies has Pioneer Fund invested in?▸

Pioneer Fund has invested in 828 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Pioneer Fund invest in?▸

Pioneer Fund's top investment sectors include Artificial Intelligence (AI), Information Technology, Software, Developer Tools, Biotechnology. The firm invests across 43 different industry categories.

What is Pioneer Fund's largest investment?▸

Among tracked funding rounds, Mastra received $13.0M in a Pre-Seed round. Pioneer Fund's total known invested capital is $3.6B.

What is the average investment size for Pioneer Fund?▸

Pioneer Fund's average investment size is $5.0M across its portfolio of 828 companies.

What are Pioneer Fund's most recent investments?▸

Recent Pioneer Fund portfolio additions include Happenstance, careCycle, Reality Defender, ImmuneBridge, Flagright. These companies were founded in 2020 or later.

Reach the founders behind these 828 companies
Verified emails and LinkedIn profiles, updated monthly.
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