Woods End Laboratories is a soil science and testing laboratory based in Augusta, Maine, with a focus on soil health, fertility, compost, and environmental testing. The laboratory provides services and resources for evaluating soil nutrients and biology, supporting clients who want to better understand soil conditions and compost performance. Its offerings include soil health and soil fertility testing, compost analysis, compost process testing, carbon dioxide testing, and herbicide bioassays. Woods End also provides biodegradability and compostability testing, including testing related to agrichemicals.

The laboratory offers soil and compost sample forms, quick guides, publications, and information to help clients navigate testing and interpret the services available. Its Solvita® products and services are part of its work in soil and compost assessment, and the company has also announced the return of its IRTH® CO2 respirometer. In 2024, Woods End Laboratories became a certified laboratory in the STA Program, expanding its role in compost testing. The company describes a history of 50 years of work in soil health and compost testing.