Karen Pepping

Nicor, Inc. provides natural gas distribution services and international shipping services. The company operates through three segments Gas Distribution, Shipping and Wholesale Marketing. Nicor was founded in 1976 and is headquartered in Naperville, IL.

Northern Illinois Gas Co. distributes natural gas properties. It also provides natural gas storage and transmission-related services to marketers and other gas distribution companies. The company was founded in 1954 and is headquartered in Naperville, IL.

The American Institute of Certified Public Accountants provides vocational education in accounting. The company provides services to the accounting community, regulatory bodies, and other organizations. It also operates in Jersey City, Washington, and Lewisville. It was founded in 1887 and is headquartered in New York City, NY.

The American Gas Association represents over 200 energy companies that provide natural gas service to 180 million Americans. The private company is based in Washington. The American company's natural gas utilities are committed to reducing greenhouse gas emissions through new and modernized infrastructure and advanced technologies that maintain reliable, resilient, and affordable energy service choices for consumers. The company advocates on behalf of its member natural gas distribution utilities before Federal agencies in the area of energy market regulation.

The Illinois Certified Public Accountants Society operates a professional association of certified public accountants. The private company is based in Illinois. Todd Shapiro has been the CEO of the American company since 1998.

Infinera Optical Holding, Inc. designs and develops telecommunications networking products. The firm serves telecom service providers, independent operating companies, multiple system operator cable companies, enterprises and government agencies. The company was founded by Michael J. Birck in 1975 and is headquartered in Naperville, IL.

Wallace Computer Services, Inc. used to design and sells both paper-based and electronic business forms. The company also provided other computer related products. The company was headquartered in Lisle, IL.