CCH, a Wolters Kluwer business (CCHGroup.com) is a leading provider of tax, accounting and audit information, software and services. It has served tax, accounting and business professionals since 1913. Among its market-leading products are The ProSystem fx® Office, CorpSystem®, CCH® IntelliConnect™, Accounting Research Manager® and the U.S. Master Tax Guide®. CCH is based in Riverwoods, Illinois.

Wolters Kluwer is a leading global information services and publishing company. The company provides products and services globally for professionals in the health, tax, accounting, corporate, financial services, legal and regulatory sectors. Wolters Kluwer has annual revenues (2007) of €3.4 billion ($4.8 billion), maintains operations in over 33 countries across Europe, North America and Asia Pacific and employs approximately 19,500 people worldwide. Wolters Kluwer is headquartered in Amsterdam, the Netherlands.