Larry Wilson is a drummer and percussionist contributing to Biota's rhythmic elements. His expertise in kit drums and percussion adds dynamic layers to the group's experimental soundscapes.

Tom Katsimpalis was a multi-instrumentalist and visual artist associated with Biota. His contributions included guitars, harmonica, clavioline, ektara, and prepared music boxes. He was also known for his work in visual arts, contributing to the collective's aesthetic.Randy Miotke

Mark Piersel is a multi-instrumentalist and producer with Biota. His contributions encompass acoustic guitar, electric bass, and processing, playing a significant role in the group's sonic explorations.

Gordon H. Whitlow is a composer and instrumentalist who has been with Biota since 1985. He is also a principal member of the project Sorry For Laughing. His instruments include electric organ, pump organ, accordion, and processing tools, enriching Biota's experimental compositions.

Steve Scholbe is a guitarist and reed player associated with Biota and the Mnemonist Orchestra. His instrumentation includes acoustic archtop guitar and rubab, contributing to the ensemble's diverse sound palette.