Better Science. Safer Homes.
A proprietary yeast-based RNA delivery platform that kills target pest species without hazardous chemistry. Species-specific by design.
Safe for people, pets, and the planet.
Learn about the technology →
We use yeast and RNA to control insect pests without toxic chemistry. The platform starts with cockroaches and is designed to expand. Because the delivery system stays the same across targets, each new pest species requires a new RNA sequence but not new infrastructure, keeping development faster and costs lower with every product we add.
Our platform uses Saccharomyces cerevisiae, the same yeast used to make bread and beer, to deliver RNA sequences to target insects. The result is a biopesticide delivery system that kills target insects and fits into existing pest control workflows.
RNA sequences are designed to target biological processes unique to each insect species, killing the pest without affecting humans, pets, or beneficial insects. Precise, repeatable, and not subject to the resistance dynamics that undermine conventional chemistry over time. Kill the bugs you want. Keep everyone else safe.
New pest species simply require a new RNA sequence, not new infrastructure. The same fermentation process that produces one product produces the next. Yeast is one of the most cost-efficient organisms to grow at scale, which means our biopesticides are designed to be price-competitive with the conventional chemicals they replace. One platform, multiple targets. That's the investment thesis in one sentence.
Two decades of published resistance data on key pest species points in one direction. What operators need to know — and what it means for the products in their spray rigs today.
Read AnalysisA plain-language explanation of the YBB mechanism — what it does, and why the safety profile is a feature of the biology, not the label.
Read PrimerDecades of reliance on chemical insecticides have driven resistance across the most common structural pests. The products that worked ten years ago are working less reliably now, and the window of effectiveness for any given chemistry is getting shorter. Insects are evolving faster than new chemistries get registered, and the gap is widening.
Read AnalysisEPA and state regulators are increasingly restricting and discontinuing conventional chemistries. As approvals slow and labels narrow, access to legacy tools are becoming less reliable. Operators who built their business around those tools are being asked to do more with less, and that pressure is not going away.
Learn MoreThe people hiring pest control operators are increasingly asking for treatments that are safer for the people inside their homes, restaurants, hospitals, and office buildings. That demand is real and it is growing. But until now every safer alternative has asked operators to sacrifice the one thing their customers are also paying for - results.
Dr. Pakpour is a founder with 30 years of entomological experience and a lifelong conviction that science can make pest control fundamentally safer. She holds a BS in Entomology from UC Davis and a PhD in Microbiology, Virology, and Parasitology from the University of Pennsylvania, followed by postdoctoral research in insect-pathogen interactions. She built her career at the intersection of insects, microbes, and human health, serving as an Assistant Professor of Biology at CSU East Bay, where she ran an active research lab and mentored student researchers, and later as a Senior Scientist at Novonesis, where she designed and engineered microbial strains for large-scale biological production. She has 30 peer-reviewed publications spanning molecular biology, insect physiology, and vector-borne diseases, and is a committed science communicator, having been featured in TED-Ed educational videos and local news broadcasts. She also volunteers at the UC Davis Bohart Museum of Entomology, bringing live insects into classrooms. At Yeast Bay Bio, Dr. Pakpour sets the scientific and strategic direction of the company, leading fundraising, industry partnerships, and the vision for where the platform goes next.…
Lisa Jann is an entrepreneur, operating executive, and company builder whose career has focused on translating specialized expertise into scalable enterprises. Working across journalism, technology, and arts and cultural institutions, she has built a reputation for connecting vision to execution—aligning talent, capital, strategy, and operations around long‑term goals. Before co‑founding Yeast Bay Bio, Ms. Jann has spent more than two decades leading a major West Coast cultural enterprise at the intersection of scholarship, creativity, and commerce. She has overseen an international $20M business, managed institutional partnerships, negotiated high‑value transactions, and collaborated with artists, collectors, foundations, estates, and museums to build durable value across a global ecosystem. As Co‑Founder and COO of Yeast Bay Bio, she brings that same ability to bridge expertise and opportunity—leading corporate strategy, capital formation, financial planning, investor relations, and operational execution as the company transforms scientific innovation into commercial opportunity. She holds an MBA from UCLA Anderson, with concentrations in Entrepreneurship and Leadership, and a BA in English from UC Berkeley.…
PCO looking for a competitive edge? Distributor evaluating your product lineup? Investor who understands the thesis? We look forward to meeting you.