Howard Sprouse has been a developer of bioremediation technologies since the mid 1990s, when he worked as a consultant to Battelle’s Pacific Northwest National Laboratory in Sequim, Washington assisting with the development of mycoremediation technology. His work there assisted projects aimed towards remediation of petroleum hydrocarbons, biological agents, pathogen degradation, and biofiltration of agricultural runoff. Howard has also worked for the Department of Botany at University of Washington, as a research assistant for fungal ecology research in Olympic National Park. He is recognized in the bioremediation industry for commercializing mycoremediation technology and as a developer of remediation technology using biochar. Howard is a teacher and lecturer on mycoremediation at Seattle University, the University of Washington, Western Washington University, and Peninsula College in Washington State.