Thee Earth & Composting Solutions, LLC provides food scrap and yard waste collection services in Washington, DC. They transform organic waste from restaurants and residential customers into nutrient-rich compost that benefits soil and plants. Their services include convenient pickup options and custom on-site composting systems. The company focuses on sustainable waste reduction and creating healthy soil through natural decomposition processes involving microorganisms. Their approach supports environmental health by reducing landfill waste and improving soil fertility.

Hatfield's Equipment & Dedication Services, Inc. is a family-owned company based in Baltimore, MD, providing septic and grease trap services across several Maryland counties including Anne Arundel, Baltimore, and Montgomery. Their offerings cover septic tank pumping, troubleshooting, system installation and repairs, commercial grease trap pumping, sewer and storm drain cleaning, and video camera pipe inspections. They are certified to install Multiple BAT systems and perform Norweco inspections to meet Maryland Department of Environment requirements. The company also provides emergency services for residential and commercial customers.

Mahoney Environmental Restaurant Cooking Oil Recycling is a used cooking oil collection company based in Washington, DC. They specialize in collecting used cooking oil from restaurants to support environmental sustainability and waste reduction. The company focuses on improving both business efficiency and environmental impact through responsible oil recycling.

Zoom Drain is a drain and sewer service provider based in Baltimore, MD, serving both residential and commercial clients in Baltimore and surrounding areas including Annapolis, Glen Burnie, Towson, Aberdeen, Dundalk, and Ellicott City. They specialize in drain cleaning, sewer repairs, grease trap maintenance, and sump pump repairs. The company is known for replacing sewer lines and addressing complex plumbing issues with advanced tools and tailored maintenance plans. Zoom Drain has been operating since at least 2017 and offers services designed to keep plumbing systems functioning efficiently and prevent costly repairs.