Synagro

Synagro, headquartered in Baltimore, Maryland, has operated for over 40 years as one of the largest biosolids and organic waste management companies in the United States, serving more than 1,000 municipal, industrial, and agricultural customers nationwide. The company's core business transforms treated biosolids into plant-available nutrients for agricultural land application, but its service portfolio extends well beyond traditional beneficial reuse. Synagro operates thermal drying facilities that reduce biosolids volume and produce pelletized fertilizer products, composting operations that convert organic waste into soil amendments, and a growing renewable energy practice that captures biogas from treatment processes. A strategic partnership with Sedron Technologies has brought the Varcor process to biosolids upcycling, with an operational facility in Indiantown, Florida capable of destroying PFAS compounds while converting biosolids into valuable resources. Synagro also provides comprehensive residuals management including dewatering, lime stabilization, and land application services. The company serves four primary market segments: municipalities seeking compliant biosolids disposal, commercial and industrial generators requiring dependable waste processing, growers and crop consultants receiving recycled nutrient products, and communities benefiting from protected water and soil resources. Synagro has been recognized as a USA Today Top Workplace in 2026 and a Baltimore Sun Top Workplace in 2025, and publishes an annual sustainability report organized around Cultivating, Growing, and Transforming pillars with a stated mission of achieving net positive environmental impact.