# Petri

> Petri is a VC fund in Boston backing Medical and Biotechnology. See 13 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Boston, United States
- Total investments: 13
- Last investment: Sep 2024
- Lead investor: 8%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/petribio
- X (Twitter): https://twitter.com/petribio
- Website: https://www.petri.bio/

Petri is a new approach for funding formation-stage startups at the intersection of biology and engineering. Petri is co-founded by entrepreneurs who have built iconic companies as well as academics who are driving foundational science in bioengineering; together we have deep experience developing ideas into successful companies across humanhealth and sustainability.We invest pre-seed and seed capital and work one-on-one with founders for 12+ months. We help founders build world-class teams, develop intellectual property, find customers, and raise a subsequent round of financing.

## Contacts

5 contacts available for Petri. Shizune tracks 5 team members at Petri. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/petri-bio?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Medical | 3 | 23% |
| Biotechnology | 3 | 23% |
| Coffee | 2 | 15% |
| Health Care | 2 | 15% |
| Life Science | 2 | 15% |

19 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 5 | 38% |
| Pre-Seed | 5 | 38% |
| Series B | 1 | 8% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 7 | 54% |
| Germany | 1 | 8% |
| United Kingdom | 1 | 8% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Brian Baynes | Founder | 3 | https://shizune.co/investors/profile/brian-baynes |
| Jamie Goldstein | Founder and Chairman | 69 | https://shizune.co/investors/profile/jamie-goldstein |
| Jaye Goldstein | Head of Program | 0 | https://shizune.co/investors/profile/jaye-goldstein |
| Josh Moser | Partner | 0 | https://shizune.co/investors/profile/josh-moser |
| Tony Kulesa | Founder, Partner | 2 | https://shizune.co/investors/profile/tony-kulesa-f829 |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| GALY | GALY develops biomaterials through biotechnology and synthetic biology in order to discover new ways to produce natural things. The company was founded in 2016 and is headquartered in Amherst, Massachusetts. | $33M | Series B | Sep 03, 2024 |  |
| Molecule | Molecule is a software platform used to decentralise intellectual property development in the biotech industry. The company was founded in 2020 by Paul Kohlhaas and Tyler Golato and is headquartered in Schaffhausen, Switzerland. | $12.7M | Seed | Jun 13, 2022 |  |
| Modern Synthesis | Modern Synthesis is a biomaterial firm established in London that links the dots between biology, material science, and design in order to create the next generation of biomaterials for the fashion industry. | $4.1M | Seed | Jun 01, 2022 |  |
| Minus | Minus is a beanless coffee company that produces coffee. | $4.5M | Seed | Sep 07, 2021 |  |
| Minus | Minus is a beanless coffee company that produces coffee. | $4.5M | Seed | Aug 31, 2021 |  |
| Compound Foods | Compound Foods produces beanless coffee and cacao for beverage solutions. | $4.5M | Seed | Aug 31, 2021 |  |
| New Equilibrium Biosciences | New Equilibrium Biosciences provides a platform that reveals opportunities for structure-based design by learning biophysics with AI. | $10M | Seed | Mar 31, 2021 |  |
| Yard Stick | Yard Stick measures soil carbon. Scientists and farmers alike know that climate-friendly agricultural practices have the potential to remove atmospheric CO2 at gigaton/year scale. When these practices are adopted, more carbon is stored in soils, improving soil health and fighting climate change. But significant measurement challenges have heldsoil carbon efforts back - until now.By reducing the cost of soil carbon measurement by 90%+, Yard Stick will dramatically expand the opportunities for evidence-based regenerative practices to simultaneously improve ecosystem health, increase farmer income, and combat climate change. | $600K | Pre-Seed | Feb 24, 2021 |  |
| Medsix | Patients who experience complex high risk surgery or are expected to heal slowly are often managed with a wound drain. Current drain output monitoring practices are manual - nurses (in the hospital) and patients (at home) eyeball the color and volume. Inaccurate data means drains are usually installed longer than necessary and nurses and patientsmiss early onset of complications (infection, leaks, excessive bleeding, blockages). This results in longer lengths of stay and increased readmission rates.Medsix plans to sell a disposable sensor with predictive analytics that can be attached to any wound drain to automate monitoring. This will address the needs of patients (detect complications earlier; remove drains earlier; reduce overall recovery time), providers (improved clinical workflow and decision making; creating a standard for wound drain output) and payers (reduce length of stay; reduce readmission rates; increase reimbursements). |  | Pre-Seed | Dec 20, 2019 |  |
| GALY | GALY develops biomaterials through biotechnology and synthetic biology in order to discover new ways to produce natural things. The company was founded in 2016 and is headquartered in Amherst, Massachusetts. |  | Pre-Seed | Nov 19, 2019 |  |

10 of 13 investments shown.

## Co-investors
- [Collaborative Fund](https://shizune.co/investors/profile/collaborative-fund) — VC Fund, 4 deals together
- [Lowercarbon Capital](https://shizune.co/investors/profile/lowercarbon-capital) — VC Fund, 4 deals together
- [Pillar VC](https://shizune.co/investors/profile/pillar-companies-2) — VC Fund, 4 deals together
- [Humboldt Fund](https://shizune.co/investors/profile/humboldt-fund) — VC Fund, 3 deals together
- [Maple VC](https://shizune.co/investors/profile/maple-vc) — VC Fund, 3 deals together
- [SVLC](https://shizune.co/investors/profile/svlc) — VC Fund, 3 deals together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Petri invest in?

Petri invests primarily in Medical, Biotechnology and Coffee startups, most often at Seed and Pre-Seed stage. Most of the 13 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Petri?

Public channels for Petri include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Petri?

The team at Petri includes Brian Baynes (Founder), Jamie Goldstein (Founder and Chairman) and Jaye Goldstein (Head of Program). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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