Founded in 1990, Excel Engineering, Inc. is a full-service, employee-owned design firm located in Fond du Lac, Wisconsin that has grown to include over 200 professional architects, engineers and associates. Repeat business, client referrals and a reputation for superior plans have contributed greatly to a company that has grown steadily for the past thirty years. We provide services throughout North America, and are registered in all 50 U.S. states and the Canadian provinces of Alberta, British Columbia, Manitoba, Ontario, Saskatchewan and New Brunswick.