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Pioneer Fund — Portfolio, Page 4

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

829
Companies
$3.0B
Total invested
$4.7M
Avg. check
55
Industries
Software 7Artificial Intelligence (AI) 7Information Technology 5Developer Tools 3Security 2Cyber Security 2+49 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Verified contacts, updated monthly
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Portfolio companies

Showing 7396 of 829
Better Auth
June 2025

Better Auth provides tools for developers to simplify how developers manage user authentication.

Developer Tools · San FranciscoSeed
Orthogonal
June 2026

Orthogonal develops medical device software enabling connected healthcare solutions and improved patient outcomes.

Developer APIs · San Francisco$4.3M Seed
Palitronica
June 2023

Palitronica provides cyber-protection for critical infrastructure and associated supply chains.

Cyber Security · KitchenerGrant
The Ankler
June 2022

The Ankler offers an entertainment industry newsletter, featuring commentary and gossip.

Content Creators · Los AngelesSeed
Riogrande
June 2022

Riogrande is an e‑commerce aggregator that acquires, operates, and scales consumer brands.

E-Commerce · Mexico CitySeries A
Metal
June 2026

Metal is a data-driven platform that help founders identify, research, and connect with investors and manage fundraising workflows.

Software · DoverSeed
Epsilon3
June 2022

Epsilon3 is the OS for spacecraft and complex operations.

B2B · Los AngelesSeries A
Ralo
June 2026

Ralo is a smart, user-friendly approach to handle house financing, particularly for first-time purchasers.

New York$2.9M Seed
HUD
June 2026

HUD is the platform for building RL environments and post training datasets.

Artificial Intelligence (AI) · San Francisco$500K Series A
Kopra Bio
June 2026

Kopra Bio is a Biotechnology Research firm offering that cure cancer through viral immunotherapy technology.

Biotechnology · San FranciscoSeed
Flagright
June 2026

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

Artificial Intelligence (AI) · Santa Clara$4.3M Series A
HeartByte
June 2024

HeartByte is a content platform that enables creators to craft fiction/comics or derivative works inspired by existing fictional universes.

Consumer · San FranciscoPre-Seed
Berri AI
June 2023

Berri AI is an API platform for SaaS businesses to create ChatGPT apps programmatically.

Artificial Intelligence (AI) · San FranciscoSeed
Prenda
June 2022

Prenda is an ed-tech company with the vision of helping young people learn technology in fun informal settings.

EdTech · MesaSeries B
Scalar Field
June 2025

Reimagining how markets are analyzed and traded

SeattlePre-Seed
Origami
June 2025

Origami is an AI-powered spreadsheet to find and enrich your ideal customers with 100+ data sources

Artificial Intelligence (AI) · San FranciscoConvertible Note
Samos
June 2022

Samos is engaged in offering risk management and Accident Death and Dismemberment insurance solutions.

Insurance · Waterloo$3.0M Seed
Quantstamp
June 2022

Quantstamp is a blockchain security company that offers security services and advisory support to prominent blockchain projects.

Blockchain · San FranciscoSeries A
Fazeshift
May 2026

Fazeshift is an AI accounts receivable software that offers automates invoicing, cash application, and collections processes for businesses.

Accounting · San Francisco$4.0M Series A
ParcelBio
May 2026

ParcelBio develops biotechnology focused on RNA medicine delivery systems and therapeutic development platforms.

Biopharma · San Francisco$13.2M Seed
Moritz
May 2026

Moritz is a legal company that provides legal services using artificial intelligence.

Artificial Intelligence (AI) · San FranciscoPre-Seed
Curebase
May 2022

Curebase is the modern eClinical platform for faster study builds, better engagement, and seamless data capture.

Clinical Trials · San Francisco$40.0M Series B
Depot
March 2026

Depot is a build acceleration and developer productivity platform that speeds up container builds and GitHub Actions runners by up to 40x.

Cloud Computing · Beaverton$10.0M Series A
Lio
March 2026

Lio support teams in organizing operational data and managing business workflows through customizable digital registers.

Artificial Intelligence (AI) · San Francisco$30.0M Series A

Where Pioneer Fund invests

Software7
Artificial Intelligence (AI)7
Information Technology5
Developer Tools3
Security2
Cyber Security2

About Pioneer Fund's portfolio

How many companies has Pioneer Fund invested in?

Pioneer Fund has invested in 829 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 Software, Artificial Intelligence (AI), Information Technology, Developer Tools, Security. The firm invests across 55 different industry categories.

What is Pioneer Fund's largest investment?

Among tracked funding rounds, Curebase received $40.0M in a Series B round. Pioneer Fund's total known invested capital is $3.0B.

What is the average investment size for Pioneer Fund?

Pioneer Fund's average investment size is $4.7M across its portfolio of 829 companies.

What are Pioneer Fund's most recent investments?

Recent Pioneer Fund portfolio additions include Better Auth, Orthogonal, Palitronica, The Ankler, Riogrande. These companies were founded in 2020 or later.

Reach the founders behind these 829 companies
Verified emails and LinkedIn profiles, updated monthly.
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