Parallel Bio
Biotechnology ResearchMassachusetts, United States11-50 Employees
Parallel Bio is a biotechnology research company based in Watertown, Massachusetts, that has built a system modeling a human immune response in a dish to study how drugs and immunotherapies interact with the immune system. The approach aims to improve the odds that therapies will work in patients by providing a human-based preclinical model that complements traditional animal testing. As a small to mid-sized company in the biotechnology research sector, it concentrates on advancing immunology-focused drug discovery and evaluation. Its primary customers are researchers and drug developers seeking more accurate predictions of efficacy for immunotherapies and other therapies. The company has publicly demonstrated progress with a model of the human immune system and a Clinical Trial in a Dish concept designed to predict drug efficacy. In June 2026, Parallel Bio expanded its offices to the San Francisco Bay Area, California, establishing the region as its U.S. headquarters and forming an advisory board with industry leaders.