In May 2009, Northern Environmental merged with Bonestroo and now operates under the Bonestroo brand. For additional details ... on the firm, please see Bonestroo's profile. Northern Environmental, founded during 1988, was a privately owned environmental consulting and engineering firm headquartered in Mequon, Wisconsin, with branch offices throughout the Upper Midwest. After quickly establishing ourselves as a leading environmental and engineering firm, we developed the reputation of being a client-friendly, full-service environmental consulting and engineering firm servicing the entire Upper Midwest. read more