Our Companies

Lachel & Associates (Lachel) specializes in design and construction management services for tunneling and other heavy civil construction projects in the areas of transportation, water and wastewater infrastructure, and hydroelectric power. Our goal is to meet the needs of clients by providing fully integrated management and technical services that are objective, thorough, and effective.

Deere & Ault (D&A) specializes in civil engineering with a focus on water resources, geotechnical, dam, slurry wall, tunnel, and mine reclamation projects. D&A is supported by skillful and dedicated personnel with over 30 years of experience. Our objective is to fully integrate management, staff, and services to effectively meet the needs of clients and partners.