Countywide Septic Service is a family-owned business serving Frederick, MD, and surrounding counties including Montgomery and Carroll. They provide septic system cleaning and maintenance for both residential and commercial customers. Their certified technicians use advanced equipment to ensure septic systems operate efficiently. Services include septic tank cleaning, grease trap cleaning, pumping, baffle inspections, and septic tank locating. The company has been operating for over 30 years and offers emergency service as well.

Freedom Septic Service, Inc. is a family-owned company based near Baltimore, MD, specializing in sewage treatment and septic pumping services. They offer a range of services including grease trap pumping, septic tank installation and repair, portable toilets, and restroom trailers for special events. With over 20 years of experience, the company serves residential and commercial clients in the Baltimore area, providing reliable septic solutions and event restroom rentals.

Leigh & Sons Liquid Waste Removal is a liquid waste removal company serving Washington, DC, and the surrounding Maryland counties including Montgomery, Frederick, Howard, and Prince George's. Founded in 1985, the company specializes in septic tank maintenance, grease trap cleaning, and holding tank services. They use state-of-the-art equipment to ensure safe and efficient waste disposal with minimal disruption. The owner personally oversees each project to maintain quality and integrity.

Key City Compost, now part of Compost Crew as of 2024, offers food waste and composting services for restaurants and other commercial clients in Frederick, MD. They provide tailored food waste recycling solutions to help organizations meet sustainability goals across the DMV area. Customers can also purchase compostable products and nutrient-rich compost and soil blends for various gardening needs.

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.