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Our team

Built by world-leading scientists,
engineers, and creators of the most
impactful healthcare products.

We are stem cell biologists, fertility specialists, and AI technologists, and we created Simbryo to revolutionize the fertility experience for the next generation of parents.

Leadership team
Yael Katz, PhD
Yael Katz, PhD
Chief Executive Officer
Serial healthtech founder and CEO, created and launched products that touch hundreds of thousands of lives. Computational and experimental scientist by training at Penn, Northwestern, and Princeton; independent board member and venture and startup advisor
Aryeh Warmflash, PhD
Aryeh Warmflash, PhD
Chief Science Officer
Professor at Cincinnati Children's, Center for Stem Cell and Organoid Medicine. Simons Investigator, CPRIT Scholar, NSF CAREER awardee, and NIH funding recipient. Over 20 years pioneering stem cell biology, with 50+ publications in Cell, Nature, PNAS, and other leading journals.
Scott Novich, PhD
Scott Novich, PhD
Chief Operating Officer
Serial founder and CTO who has built and scaled science-based consumer and clinical products. His favorite: a wearable that lets deaf people perceive sound through touch. Engineering PhD from Rice.
Madeline Martini
Madeline Martini
Director of Marketing
Leads brand, growth, and patient education at Simbryo. Previously drove growth, partnerships, and brand at Bumble, Lime, and Built In, and ran platform and portfolio support for a Midwest venture fund.
Science team
Elissa Tjahjono
Elissa Tjahjono, PhD
Lead Scientist
Lead author of the Simbryo FX clinical study, trained at Rice University and the University of Glasgow. Expertise in cell culture, genetics, and microbiology.
Shreyas Kowdle
Shreyas Kowdle
Lab Manager
Nine years in biology lab operations, with a Biotech MS from NYU and stops at Columbia and Mount Sinai. Keeps every test moving from tissue to result.
Pranjal
Pranjal Sarma, PhD
Clinical Lab Scientist
Over 10 years experience as a clinical lab scientist, runs Simbryo's endometrial organoid assays, turning patient biopsy samples into living tissue models.
Medical advisors
Dr. George (Mac) Grunert
George (Mac) Grunert, MD
Medical Advisor
Founder and director of the longest ongoing IVF program in the Southwest, now part of Aspire Fertility. Clinical Assistant Professor at Baylor College of Medicine, and Captain, Medical Corps, US Naval Reserve. Has written chapters on infertility for medical textbooks, has given numerous scientific presentations, and has co-authored over 100 articles for publication.
Dr. Madeline Kaye
Madeline Kaye, MD
Medical Advisor
Serving at Texas Fertility Center for over four years, now a founding physician at Pozitivf Fertility, Austin. A medical blogger passionate about patient education, Dr. Kaye is sought after for her ability to convey complex, evidence-based information on issues affecting women in an easily digestible way.
Advisors
Simon Lumsdon
Simon Lumsdon, MBA
Twenty years of sales and commercial leadership in the fertility industry across large companies and startups, including Vitrolife, Overture, and Fertile AI.
Steve Rooks
Steve Rooks, MBA
Transformation and value-creation leader across fertility, healthcare, and global industry. Formerly COO of The Fertility Partners, one of the largest IVF networks in North America, Portfolio Advisor to MonCap's fertility fund, Bain principal, and Stanford GSB.
Andrea Mazzocchi, PhD
Andrea Mazzocchi, PhD
2x YC-backed founder in personalized medicine. CEO of Play Health, AI-driven perimenopause platform former CEO of Known Medicine, organoid-based cancer diagnostics, acquired by Pathos AI.
Spencer Greene, MS
Spencer Greene, MS
Leads the healthtech practice at TSVC, the Silicon Valley seed fund founded in 2010 that has backed 200+ startups including Zoom, Carta, Ginkgo Bioworks, and Zum Transportation. Focuses on early-stage strategy, product, and technology.
Caroline Kassie, JD
Caroline Kassie, JD
Managing Partner of Metrodora Ventures, a New York City based venture capital firm backing early-stage healthtech and edtech companies. Formerly founding GP of Blockchange Ventures, and Executive Director of Beanstalk Labs and an M&A lawyer by trade.
Chelsea Clinton, PhD
Chelsea Clinton, PhD
Vice Chair of the Clinton Foundation and the Clinton Health Access Initiative, bestselling author, speaker, teacher at Columbia University's School of Public Health, and co-founder of Metrodora Ventures.
Nick Archer, MBA
Nick Archer, MBA
Vice President of Innovation Ventures at Cincinnati Children's, turning scientific discoveries into real-world impact by connecting academia, industry and patient care. Over 20 years of experience in healthcare operations, strategy and commercialization; part of the early team at the unicorn, Hippocratic AI.
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