We are researchers at the UW-Madison with a shared interest in microbiome science and engineering. We use the term “microbiome” broadly but it usually refers to the collection of microorganisms that interact with each other and with their surroundings (sometimes including a multi-cellular host). The Microbiome Portal is a website, and associated activities, that aim to showcase our work and connect us locally. UW-Madison microbiome researchers work in many different systems ranging from the human body, animals, soil, plants, lakes, food, wastewater treatment systems, and test tubes. We use combinations of -omics, computational biology, experiments, field work, and simulations to advance our understanding of how microbiomes function and how we can harness them to improve the quality of life for humans and the health of the environment. The Wisconsin Microbiome Portal is the nucleus of microbiome research at UW-Madison that will provide the means to unite the community around common ideas, sponsor workshops and symposia, and present the community of microbiome researchers at UW-Madison to the world.