Prolog Ventures
VC Fund
St Louis, United States
Prolog Ventures is a VC fund in St Louis focused on Biotechnology and Health Care. Prolog backs companies that help all of us enjoy healthy lives in a healthy world
- Total investments:
- 58
- Last investment:
- Lead investor:
- 21%
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Prolog Ventures invests in
Stages Prolog Ventures invests in
Countries Prolog Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 8 contacts → | |||
Round size
- Series A
- $4M–$14M
- Series B
- $7.5M–$20M
- Series C
- $902k–$24M
Investment Focus
Industry
- Biotechnology 20 (34%)
- Health Care 18 (31%)
- Medical Device 6 (10%)
- Medical 5 (9%)
- Food and Beverage 4 (7%)
Stage
- Series A 12 (21%)
- Series B 12 (21%)
- Series C 6 (10%)
- Venture - Series Unknown 6 (10%)
- Funding Round 5 (9%)
Country
- United States 29 (50%)
- Canada 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Brian Clevinger
Founder & Managing Director
|
Founder & Managing Director | Total investments: 8 | Find email | |
Greg Johnson
Founder & Managing Director
|
Founder & Managing Director | Total investments: 2 | Find email | |
Ilya Nykin
Co-founder & Managing Director
|
Co-founder & Managing Director | Total investments: 6 | Find email | |
Courtney Harris
Controller
|
Controller | Total investments: 0 | Find email | |
Dan Broderick
Venture Partner
|
Venture Partner | Total investments: 3 | Find email | |
| See all 8 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Benson Hill is a crop improvement company that unlocks the natural diversity of plants and empowers innovators with a revolutionary crop design platform to develop healthier and more sustainable food and ingredients.Benson Hill empowers innovators to develop more healthy, flavorful, and sustainable food by unlocking the natural genetic diversityof plants. Benson Hill’s CropOS™ platform combines machine learning and big data with breeding techniques and plant biology to drastically accelerate and simplify the product development process. | $150M / Series D / Oct 29, 2020 | ||
| CleanSlate UV allows staff, patients and visitors to sanitize their personal items (such as phones, tablets and badges) while they wash or sanitize their hands. This helps improve hand hygiene and reduce the risk of hospital acquired infections. Its mission is simple: eliminate pathogens on mobile devices through the use of effective andeasy-to-use UV products. We do this by designing technologies that people will actually use, backed by science reflective of real-world conditions. CleanSlate harness the power of UV light to kill the most dangerous bacteria without damaging expensive touch screens. | $7M / Series A / Apr 15, 2020 | ||
| CoverCress is a biotechnology company that focuses on research and development of renewable fuel and livestock feed. It specializes in producing an oilseed crop for food, bioenergy, and cattle feed. It specializes in the fields of agriculture, biotechnology, plants, genetics, cover crop, and precision agriculture.CoverCress was founded in 2013 byJerry Steiner and Dr. Tim Ulmasov and is headquartered in St. Louis Missouri. | $5M / Venture - Series Unknown / Apr 13, 2020 | ||
| Kinnos is a biotechnology company pioneering color technology to revolutionize how they use disinfectants. The company's first product, Highlight, is a point-of-use additive that greatly improves visibility and end-user compliance of disinfectants. Their goal is to empower people to disinfect surfaces with confidence and to provide societywith peace of mind through disinfection they can see. | $6M / Series A / Mar 05, 2020 | ||
| BioClarity is dedicated to solving the skincare needs of young adults by fusing nature and science to create the next generation of acne fighting products. | $13M / Venture - Series Unknown / May 14, 2019 | ||
| SchoolCare delivers free health technology for K-12 public schools to help school nurses deliver care and keep students safe. It is a digital health platform for the largest and most consistent health delivery system in the country. Their mission is to work with partners to provide a unified health record for every family. SchoolCare leveragespediatric health data and this country’s most successful public health organization, the K-12 school system, to improve outcomes and learn about clinical health data outside of the provider’s office. Traditional care coordination stops short of sending essential care instructions to School Nurses and thus increases the risk of stopped or inconsistent post-discharge care delivery. By closing the link in the pediatric care continuum, children stay healthy and get better faster. | $24.3M / Series C / Feb 15, 2019 | ||
| CoverCress is a biotechnology company that focuses on research and development of renewable fuel and livestock feed. It specializes in producing an oilseed crop for food, bioenergy, and cattle feed. It specializes in the fields of agriculture, biotechnology, plants, genetics, cover crop, and precision agriculture.CoverCress was founded in 2013 byJerry Steiner and Dr. Tim Ulmasov and is headquartered in St. Louis Missouri. | $2M / Venture - Series Unknown / Nov 13, 2018 | ||
| TOMA Biosciences is a genomics company that provides physicians with information to optimize treatment for cancer patients. TOMA’s proprietary sequencing solution turns the latest next=generation sequencing (NGS) technology into a powerful digital tool to detect the most clinically meaningful changes in a patient’s tumor DNA. Physicians use thisimportant data to optimize treatment for their patients.TOMA technology enables laboratories to uncover the DNA alterations in cancer cells to provide meaningful data for researchers and clinicians seeking the optimal treatment options for their patients. The company is a commercial-stage private venture-backed company headquartered in Foster City, California. | $3.6M / Series C / Jul 21, 2018 | ||
| Spindrift is a food and beverage company that produces a line of unsweetened sparkling beverages made with real squeezed fruit. They offer sparkling water plus real fruit with different flavors. They also provide drinks such as half and a half which is tea brewed with lemon, raspberry lime, strawberry, and many more.It was founded in 2010 and isbased in Newton, Massachusetts. | $20M / Series B / Mar 15, 2018 | ||
| SchoolCare delivers free health technology for K-12 public schools to help school nurses deliver care and keep students safe. It is a digital health platform for the largest and most consistent health delivery system in the country. Their mission is to work with partners to provide a unified health record for every family. SchoolCare leveragespediatric health data and this country’s most successful public health organization, the K-12 school system, to improve outcomes and learn about clinical health data outside of the provider’s office. Traditional care coordination stops short of sending essential care instructions to School Nurses and thus increases the risk of stopped or inconsistent post-discharge care delivery. By closing the link in the pediatric care continuum, children stay healthy and get better faster. | $16M / Series B / Jan 17, 2018 | ||
| See all 58 investments → | |||
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FAQ
What does Prolog Ventures invest in?
Prolog Ventures invests primarily in Biotechnology, Health Care and Medical Device startups, most often at Series A and Series B stage. Most of the 58 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Prolog Ventures's check size?
Prolog Ventures typically joins rounds of $4M–$14M at Series A, $7.5M–$20M at Series B and $902k–$24M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Prolog Ventures participates in.
How do I contact Prolog Ventures?
Public channels for Prolog Ventures 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 Prolog Ventures?
The team at Prolog Ventures includes Brian Clevinger (Founder & Managing Director), Greg Johnson (Founder & Managing Director) and Ilya Nykin (Co-founder & Managing Director), among 8 team members tracked by Shizune. 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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