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John Flavin

AddedMar 31, 2024

UpdatedJun 8, 2026

John Flavin

John Flavin

Founder & CEO, Portal Innovations

Crunchbase LinkedIn

John Flavin's Career

Portal Innovations

Portal Innovations

Chicago, IL, US

Founder & CEO· C-Suite · Management

ClostraBio

Chicago, IL, US

Board Member· Board

Tract Therapeutics

Tract Therapeutics

Chicago, IL, US

CEO· C-Suite · Management

Grove Biopharma

Grove Biopharma

Chicago, IL, US

Board Member· Board

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John Flavin's Career

Portal Innovations

Portal Innovations

Investment FirmInvestment Firm412020Chicago, IL, US

Founder & CEO· C-Suite · Management

Similar to Portal Innovations

BioInnovationCambridge, MA, USest. 2016BioInnovationCambridge, MA, US · est. 2016

BioInnovation LLC: A Cambridge-based life sciences firm investing in, co-founding, and nurturing early-stage ventures.

Investment Firm5

Emerald BioventuresNew York City, NY, USEmerald BioventuresNew York City, NY, US

NYC-based venture capital firm specializing in incubating life science, biotech, and health tech companies.

Investment Firm30

Endpoint VenturesSan Francisco, CA, USest. 2015Endpoint VenturesSan Francisco, CA, US · est. 2015

Early-stage investment firm specializing in healthcare, life sciences, diagnostics, and therapeutics.

Investment Firm2

Portal VenturesNew York City, NY, USest. 2022Portal VenturesNew York City, NY, US · est. 2022

Portal Ventures: A crypto investment firm shaping the future economy with innovative partnerships.

Investment Firm7

ClostraBio

Series A$7.5M72016Chicago, IL, US

Board Member· Board

Leadership at ClostraBio

Cathryn NaglerCo-Founder

Jeffrey A HubbellCo-Founder

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Microbiome TherapeuticsBroomfield, CO, USMedical Researchest. 2009Microbiome TherapeuticsBroomfield, CO, US · est. 2009

Microbiome Therapeutics LLC: A US-based medical research firm specializing in metabolic disease solutions.

Series B · $3M30

Petri BioLos Angeles, CA, USTherapeuticsest. 2019Petri BioLos Angeles, CA, US · est. 2019

Petri Bio: A biotech firm innovating gut microbe-based therapeutics.

Naked BiomeCacheu Region, GWTherapeuticsest. 2015Naked BiomeCacheu Region, GW · est. 2015

Naked Biome: A therapeutics company advancing microbiome-based treatments for skin diseases.

Seed · $11.1M1

MarvelBiomeWoburn, MA, USTherapeuticsest. 2019MarvelBiomeWoburn, MA, US · est. 2019

MarvelBiome: A biopharmaceutical company harnessing microbial power for innovative disease treatments.

Tract Therapeutics

Tract Therapeutics

Series B$15M52013Chicago, IL, US

CEO· C-Suite · Management

Leadership at Tract Therapeutics

Gretchen S JohnsonCo-Founder

Joseph LeventhalCo-Founder

Similar to Tract Therapeutics

Tr1xLos Angeles, CA, USCell Therapyest. 2018Tr1xLos Angeles, CA, US · est. 2018

Tr1x: Pioneering cellular therapies for autoimmune disorders, recalibrating the immune system for long-term tolerance.

Series A · $75M30

Sonoma BiotherapeuticsSouth San Francisco, CA, USTreg Therapiesest. 2020Sonoma BiotherapeuticsSouth San Francisco, CA, US · est. 2020

Sonoma Biotherapeutics: Pioneering Treg cell therapies for autoimmune and inflammatory diseases.

Series C · $365M146

Tactiva TherapeuticsBuffalo, NY, USCancer Treatmentest. 2016Tactiva TherapeuticsBuffalo, NY, US · est. 2016

Tactiva Therapeutics: Specializing in potent dual T cell receptor cancer immunotherapy.

Series A · $35M30

TregTherapeuticsChapel Hill, NC, USVaccineest. 2018TregTherapeuticsChapel Hill, NC, US · est. 2018

TregTherapeutics, a preclinical-stage company, develops a novel vaccine for multiple sclerosis treatment, leveraging Treg cells' power to alter autoimmune disease outcomes.

Angel · $250k6

Grove Biopharma

Grove Biopharma

Seed$10.5M82020Chicago, IL, US

Board Member· Board

Leadership at Grove Biopharma

Geoffrey M. DuykCo-Founder

Paul BertinCo-Founder

Similar to Grove Biopharma

GRO BiosciencesBoston, MA, USProtein Therapeuticsest. 2016GRO BiosciencesBoston, MA, US · est. 2016

GRO Biosciences innovates protein therapeutics using novel amino acids to combat incurable diseases.

Series A · $32.3M44

Groove BiopharmaSeattle, WA, USDrugs, Therapeuticsest. 2008Groove BiopharmaSeattle, WA, US · est. 2008

Groove Biopharma: Pioneering microRNA therapeutics for cancer, fibrosis, and infectious diseases.

Series B · $9.9M6

Orange Grove BioCincinnati, OH, USDrug Discoveryest. 2019Orange Grove BioCincinnati, OH, US · est. 2019

OGB: A preclinical biotech platform advancing affordable drug discovery and clinical trials.

Seed · $18.6M35

ProFound TherapeuticsCambridge, MA, USTherapeuticsest. 2022ProFound TherapeuticsCambridge, MA, US · est. 2022

ProFound Therapeutics: Innovating impactful disease understanding and therapeutic creation.

Series A · $75M35

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