About Us

Symbio Laboratories is one of the leading international analytical laboratories with locations in Australia and now the United States. We are equipped with the latest, most sensitive instruments and technology run by a highly-trained team of scientists. Our vision is to be the leader in analytical testing by continually improving our processes and raising our standards. We strive to provide quality analytical data that our clients can utilize in real-time.

Josh Swider, PhD

Co-founder / CEO

Josh began his career in chemistry at Eastern Washington University, where he earned his Bachelor of Science in Chemistry and degrees in physics and biology. His quest for a deeper understanding of science led him to graduate school, where he attended the joint doctoral program at the University of California, San Diego, and San Diego State University.

Dave Marelius, PhD

Co-founder / CSO

Born and raised in San Diego, Dave attended San Diego State University in 2009, where he received his bachelor’s degree in chemistry. Dave then went on to earn his Ph.D. from the joint doctoral program between SDSU and the University of California, San Diego, where, for his graduate work, he utilized organic and organometallic synthesis to make catalysts for water splitting, the conversion of water into oxygen and hydrogen for energy storage. As a graduate student, he received the IPMI Richard Rubin Memorial Scholarship in 2014 for his research in precious metals.

Dillon Burns

Lab Manager

Dillon earned his bachelor’s degree in chemistry from San Diego State University while conducting research on the synthesis and characterization of novel fluorescent compounds. He went on to earn his master’s degree in Chemistry from SDSU and has since applied his knowledge to the analytical industry. Dillon is one of the first scientists to join the team and has quickly become an invaluable asset. As much as he loves screening for pesticides and PFAS, Dillon also enjoys rock climbing, hiking, and exploring California’s beautiful national parks with his dog, Luna.

Erik Paulson, PhD

Lab Manager

Erik grew up in San Diego, CA, and received his Bachelor of Science in Chemistry from the University of California, Riverside. He continued his studies in Riverside to obtain a teaching credential and then taught high school chemistry in Burbank, CA, for five years. His passion for learning brought him back to San Diego to study organometallic chemistry in the Joint Doctoral Program at San Diego State University and the University of California, San Diego. His projects involved the development of catalysts for the selective migrations of double bonds in organic molecules.