CHICAGO -- After 89 years in business, Arthur Andersen LLP on Saturday ended its role as auditor of public companies.

The Chicago-based company was convicted in June of obstruction of justice for shredding and doctoring documents related to Enron audits. Afterward, Andersen told the Securities and Exchange Commission it would cease auditing public companies. It already had given up its license to practice in several states.

"As of this day, Arthur Andersen LLP has voluntarily relinquished, or consented to revocation of, its firm permits in all states where it was licensed to practice public accountancy with state regulators," the company said Saturday in a statement.

The company now has fewer than 3,000 of the roughly 28,000 employees it had before the Enron scandal. Of its more than 1,200 public-company audit clients, none will remain.

The firm's startling decline has come in less than nine months.

As people have left and files have gone into storage, Brentlinger said Andersen staff members have removed papers from offices in a downtown Houston skyscraper and turned off the lights, leaving only furniture and artwork. Office supplies were donated to charities.

Andersen has had to disconnect its e-mail system and sell computers and other hardware.

The once-mighty accounting firm is expected to be sentenced Oct. 17.