Daniel Petersen

Part of The Marne & Elk Horn Telephone Co., Walnut Telephone Company, Inc. provides local exchange, long distance toll, internet access and digital television services. The company is based in Elk Horn, IA. Walnut Telephone Company was acquired by The Marne & Elk Horn Telephone Co. on October 01, 2016.

Medtronic, Inc. operates as a medical technology company. It offers implantable cardiac pacemakers, eternal defibrillators, inferior turbinate surgery products, and continuous glucose monitoring device. The company was founded by Earl E. Bakken and Palmer J. Hermundslie on April 29, 1949 and is headquartered in Minneapolis, MN.

United States Surgical Corp. engages in the manufacture of wound closure products and surgical devices. It produces tools used in surgery including staplers, sutures, laparoscopic instruments, cardiovascular surgical products and electrosurgical devices. The company was founded in 1964 and is headquartered in North Haven, CT.

Equidyne Systems, Inc. manufactures and markets medical device. The firm has strategic alliances with major pharmaceutical companies in the U.S., Japan and Europe. The company was founded in 1993 and is headquartered in Anaheim, CA.

Lawrence Berkeley National Laboratory engages on research of environmental studies, nanoscience, and quantitative biology, physics and nuclear energy. The lab is funded by the U.S. Department of Energy and managed by the University of California. It was founded in 1931 by Ernest Orlando Lawrence and is headquartered in Berkeley, CA.