Petri

Petri is a venture capital accelerator based in Boston, Massachusetts, founded in 2019. The firm specializes in investing in formation-stage startups, particularly at the intersection of biology and engineering. Petri focuses on sectors such as biotech applications, food, healthcare, industrial chemicals, and new materials. It provides pre-seed and seed capital investments, typically up to $0.25 million, and works closely with founders over a 12-month period to help them build high-quality teams, develop intellectual property, and identify customers. Petri's programming culminates in a Demo Day presentation, showcasing the startups' progress. In exchange for its support, Petri acquires an equity stake in the participating companies.

Brian Baynes

Investor

Josh Moser

Partner

Michael Retchin

Associate

10 past transactions

GALY

Funding Round in 2024
GALY is a United States–based biomaterials company that grows cotton from cells in a laboratory rather than from field crops. Using a proprietary method, it produces cellular cotton to supply textile materials, including yarns, for clothing brands and textile manufacturers. The process eliminates farmland requirements, minimizes water use, and avoids pesticides and insecticides, offering a sustainable, traceable, and ethical raw material with a lower environmental impact.

Modern Synthesis

Seed Round in 2022
Modern Synthesis is a biotechnology company that develops biofabricated materials by converting bacterial nanocellulose, a by‑product of fermentation, into sustainable textiles and coatings. Its materials offer performance and aesthetics without plastics, petrochemicals, or animal inputs, enabling durable options for the fashion industry and beyond. The process leverages abundant raw materials and integrates with existing manufacturing infrastructure to scale production without starting from scratch, helping brands replace animal leather and plastic‑based textiles while reducing environmental impact and expanding design possibilities.

Minus

Seed Round in 2021
Minus is a beanless coffee company which produces coffee.

New Equilibrium Biosciences

Seed Round in 2021
New Equilibrium Biosciences develops a platform that leverages artificial intelligence to learn biophysics, revealing opportunities for structure-based drug design.

Yard Stick

Pre Seed Round in 2021
Yard Stick develops a handheld device that measures soil carbon levels in real-time. This enables evidence-based regenerative farming practices, improving soil health, increasing farmer income, and combating climate change by sequestering carbon.

Medsix

Pre Seed Round in 2019
Medsix is a medical technology company focused on enhancing patient outcomes through innovative wound drainage solutions. The company has developed a disposable sensor that can be attached to any wound drain, automating the monitoring of drain output with predictive analytics. This technology addresses the challenges associated with current manual monitoring practices, which often lead to inaccuracies in data collection and delayed detection of complications such as infections or blockages. By providing real-time insights, Medsix's sensor aims to facilitate earlier removal of drains, reduce recovery time, and improve overall clinical workflows for healthcare providers. Additionally, the solution is designed to benefit payers by decreasing hospital lengths of stay and readmission rates, ultimately enhancing reimbursement opportunities.

GALY

Pre Seed Round in 2019
GALY is a United States–based biomaterials company that grows cotton from cells in a laboratory rather than from field crops. Using a proprietary method, it produces cellular cotton to supply textile materials, including yarns, for clothing brands and textile manufacturers. The process eliminates farmland requirements, minimizes water use, and avoids pesticides and insecticides, offering a sustainable, traceable, and ethical raw material with a lower environmental impact.

Matterworks

Pre Seed Round in 2019
Matterworks is a developer of an artificial intelligence platform focused on advancing the field of metabolomics within the life sciences. The company's technology enhances analytical capabilities, allowing scientific researchers to conduct faster and more comprehensive metabolomic screenings. By facilitating the discovery and engineering processes, Matterworks aims to accelerate scientific progress and support innovation in various biological applications.

New Equilibrium Biosciences

Pre Seed Round in 2019
New Equilibrium Biosciences develops a platform that leverages artificial intelligence to learn biophysics, revealing opportunities for structure-based drug design.
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