Oneida Engineering Solutions (OES) is a full-service engineering and environmental services company owned by the Oneida Nation of Wisconsin as a subsidiary under the Oneida ESC Group. We are an approved Native American-Owned Disadvantaged Business Enterprise (DBE) and 8a Small Business Enterprise (SBE). We deliver cost-effective technical services characterized by cooperative attitude, business-like concern for customer needs, effective communication, and commitment to customer satisfaction.

OES integrates engineers, scientists, professionals and construction managers for delivery of services on infrastructure, facility and development projects. We work closely with state and local municipalities, government agencies, commercial clients and public-private partnerships to solve the most complex challenges that improve the communities where we live and work.