Buchanan Ingersoll & Rooney PC ranked on six different "Top 100" lists published by Law360 on December 4, 2009. The rankings were determined by the number of lawyers within each specified practice area of major law firms and select boutique firms. The "Top 100" lists in which Buchanan ranked were: "Largest Firm in U.S.," "Largest Bankruptcy Practices," "Largest IP Practices," "Largest Environmental Practices," "Largest Competition Practices," and "Largest Employment Practices."