Auth Consulting & Associates (AC/a) is a professional services corporation with offices in Menomonie and Hudson, Wisconsin. Since 1995, we have offered complete Planning, Engineering, Building Design and Construction Management services throughout the United States with primary operations in Wisconsin and Minnesota. S&N Land Surveying, located in Hudson, Wisconsin, a subsidiary of AC/a, opened in 1976 serving St. Croix and surrounding counties and has grown in size along with the area. We use the latest technology both in the field and in the office to assure your project is completed to the industry’s highest standards. We have experienced licensed surveyors in the States of Wisconsin and Minnesota.