Deere & Ault Consultants, Inc. is a specialty engineering firm in underground construction. The firm brings together a group of experienced professionals with more than 100 years combined experience in the investigation, analysis, and design of underground projects. The major factors which distinguish Deere & Ault from other underground engineering firms are the depth and the scope of experience of our professional staff on underground projects for transit, water supply, and sewage. Our staff works closely together to solve many difficult design and construction issues. We take projects from the conceptual phase through alternative and feasibility studies, design, and ultimately construction.