# Pioneer Fund's Biotech Investments: 19 Startups in Its Portfolio (2026) > The 19 Biotech startups Pioneer Fund has backed, by stage: $239M raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/pioneer-fund-2-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Pre-seed and seed 9 - [Seer](https://millionrounds.com/company/seer) - [ImmuneBridge](https://millionrounds.com/company/immunebridge) - [Digi-Prex](https://millionrounds.com/company/digi-prex) - [Alga Biosciences](https://millionrounds.com/company/alga-biosciences) - [Anthrogen](https://millionrounds.com/company/anthrogen) - [Engage Bio](https://millionrounds.com/company/engage-bio) - [dNovo Bio](https://millionrounds.com/company/dnovo-bio) - [Catena Biosciences](https://millionrounds.com/company/catena-biosciences) - [Uncommon Therapeutics](https://millionrounds.com/company/uncommon-therapeutics) ## Stage not reported 8 - [54gene](https://millionrounds.com/company/54gene) - [Bactobio](https://millionrounds.com/company/bactobio) - [resistanceBio](https://millionrounds.com/company/resistancebio) - [Caravel Bio](https://millionrounds.com/company/caravel-bio) - [CB Therapeutics](https://millionrounds.com/company/cb-therapeutics) - [Resvita Bio](https://millionrounds.com/company/resvita-bio) - [Birch Biosciences](https://millionrounds.com/company/birch-biosciences) - [Kopra Bio](https://millionrounds.com/company/kopra-bio) ## Series B 2 - [Curebase](https://millionrounds.com/company/curebase) - [Precipio Diagnostics](https://millionrounds.com/company/precipio-diagnostics) ## Segment by segment ### Pre-seed and seed 9 startups · $94M raised - [**Seer**](https://millionrounds.com/company/seer) SEER is a software company. United States $57M - [**ImmuneBridge**](https://millionrounds.com/company/immunebridge) ImmuneBridge is a biotechnology company based in San Francisco, founded in 2018. United States $13M - [**Digi-Prex**](https://millionrounds.com/company/digi-prex) Holistic Platform for Chronic Disease Management India $5.5M - [**Alga Biosciences**](https://millionrounds.com/company/alga-biosciences) Alga Biosciences is a climate technology startup founded in 2021, based in San Francisco, California. United States $4.0M - [**Anthrogen**](https://millionrounds.com/company/anthrogen) Anthrogen is a biotechnology company and AI-research lab based in San Francisco, founded in 2024. United States $4.0M - [**Engage Bio**](https://millionrounds.com/company/engage-bio) Engage Bio transforms cancer cells into factories for immunotherapies. United States $3.9M - [**dNovo Bio**](https://millionrounds.com/company/dnovo-bio) At dNovo we aim to solve the hair loss problem by making new hair stem cells with our direct reprogramming technology. United States $2.7M - [**Catena Biosciences**](https://millionrounds.com/company/catena-biosciences) Catena Biosciences is a biotechnology company that offers protein conjugation, building biologic structures, and medical research. United States $2.4M ### Stage not reported 8 startups · $102M raised - [**54gene**](https://millionrounds.com/company/54gene) 54gene is a healthcare startup that offers a genetics testing platform. United States $50M - [**Bactobio**](https://millionrounds.com/company/bactobio) Bactobio is a biotechnology company unlocking biodiversity for a greener and safer world. United Kingdom $18M - [**resistanceBio**](https://millionrounds.com/company/resistancebio) resistanceBio is a biotechnology company based in Menlo Park, California, focused on developing innovative therapies and diagnosti United States $13M - [**Caravel Bio**](https://millionrounds.com/company/caravel-bio) Caravel Bio is a biotechnology and synthetic biology company based in Portland, Oregon, founded in 2022. United States $9.0M - [**CB Therapeutics**](https://millionrounds.com/company/cb-therapeutics) CB Therapeutics is a biotechnology company based in Carlsbad, California, founded in 2015. United States $7.5M - [**Resvita Bio**](https://millionrounds.com/company/resvita-bio) Resvita Bio develops and manufactures engineered probiotics for use in treatment if skin related diseases including cancer. United States $2.0M - [**Birch Biosciences**](https://millionrounds.com/company/birch-biosciences) Birch Biosciences is an AI-native cleantech startup based in Portland, Oregon, founded in 2021. United States $1.6M - [**Kopra Bio**](https://millionrounds.com/company/kopra-bio) Kopra Bio is a biotechnology company based in San Francisco, founded in 2024. United States $500K ### Series B 2 startups · $43M raised - [**Curebase**](https://millionrounds.com/company/curebase) Curebase is an AI-powered eClinical software platform that enhances clinical research through decentralized clinical trials (DCTs). United States $40M - [**Precipio Diagnostics**](https://millionrounds.com/company/precipio-diagnostics) Precipio Diagnostics is a cancer diagnostics reference laboratory delivering advanced diagnostics, advice and personalized medicine. United States $3.4M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Pioneer Fund as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **Pioneer Fund's AI portfolio** 171 startups · $2.8B](https://millionrounds.com/portfolio-maps/pioneer-fund-2-ai-portfolio)[Sector portfolio **Pioneer Fund's Fintech portfolio** 21 startups · $298M](https://millionrounds.com/portfolio-maps/pioneer-fund-2-fintech-portfolio)[Sector portfolio **Pioneer Fund's Big Data & Analytics portfolio** 13 startups · $96M](https://millionrounds.com/portfolio-maps/pioneer-fund-2-big-data-analytics-portfolio)[Sector portfolio **Pioneer Fund's IT Services portfolio** 11 startups · $59M](https://millionrounds.com/portfolio-maps/pioneer-fund-2-it-services-portfolio)[Portfolio map **Pioneer Fund portfolio map** 289 startups · $5.9B](https://millionrounds.com/portfolio-maps/pioneer-fund-2-portfolio-map)[Co-investors **Who invests with Pioneer Fund** 197 co-investors](https://millionrounds.com/portfolio-maps/pioneer-fund-2-co-investors) ## Raising from investors like Pioneer Fund? 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