Wiriadinata & Widyawan has gained widespread recognition as one of the largest and most respected commercial and corporate law firms in Indonesia. Formerly, known as Del Juzar & Wiriadinata, the firm was established in 1971 by Delma Juzar, and is the oldest commercial law firm in Indonesia. Hoesein Wiriadinata joined the firm as a partner in 1982 and Widyawan joined the firm in 1991.

The firm provides comprehensive legal services to Indonesian, foreign and multinational clients. With its experience and technical excellence, the firm is able to help its clients to achieve their business objectives efficiently and cost-effectively.

The firm has more than 25 partners and associates, all fluent in English. Many of the firm's lawyers have been trained in the United States, Australia or Holland. There are also two foreign counsel.