Lopata, Flegel & Company LLP is a St. Louis-based accounting and management consulting firm with a history spanning 89 years. From its West County office, the firm serves businesses and families in the St. Louis area and throughout the United States. It describes its approach as client-focused and technically strong, with a commitment to helping clients address financial challenges and achieve their goals.

The firm provides assurance services, including audits, reviews, compilations, and agreed-upon procedures. Its tax services cover return preparation, federal and state audit representation, tax consulting, multistate planning and compliance, and estate, gift, and trust planning. Business solutions include transactional and controllership services, along with business planning. Management consulting offerings include mergers and acquisitions, litigation support, and forensic accounting.

Lopata, Flegel & Company serves organizations across industries such as manufacturing, construction and real estate, wholesale and distribution, retail and restaurants, and professional services, as well as private equity and emerging businesses. The firm also shares articles on tax and financial topics for individuals and businesses.