Headquartered in St. Louis, servicing Missouri, Illinois, and Kansas, Rottler Pest Solutions is a third generation, family ow ... ned and operated company. Here at Rottler, our goal is to be known for superior service and a steadfast commitment to exceeding our clients’ needs and expectations. In pursuit of this goal, we have grown to be one of the Top 100 pest management firms in the Nation and are the largest privately-owned pest management firm in Missouri. We’ve been able to achieve this reputation as an organization not only by utilizing the latest environmentally proven technologies, but with the help of our diverse team of committed and dependable associates who carry on the family-owned, personal service approach we believe in at Rottler. read more