Correction: This article originally contained a number of inaccuracies and omissions. The firm claims $1 billion in recoveries and other measures of values for investors and consumers.  Felipe Arroyo argued the Hewlett-Packard Co. case and Marc Umeda helped lead the strategy. Co-counsel in the Vitacost.com Inc. case included Robert Weiser of The Weiser Law Firm, and in the Amerco case Travis Downs III and James Jaconette, partners at Robbins Geller Rudman & Dowd. The article has been updated to clarify these errors.

When it comes to shareholder derivative lawsuits, few firms are as committed as Robbins Umeda. The firm, founded in 2002 by Brian Robbins and Marc Umeda, has grown into one of the premiere firms in the realm of derivative litigation. It has done much to establish that particular practice area.