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Health Discovery Corporation operates as a pattern recognition company that uses mathematical techniques to analyze data to uncover patterns primarily in the field of molecular diagnostics in the United States. Its intellectual property includes Support Vector Machines (SVM), which are mathematical algorithms; and biomarkers that are biological indicators or genetic expression signatures of certain disease states, as well as Fractal Genomic Modeling technology. The company was incorporated in 2001 and is based in Atlanta, Georgia.

Marathon Digital Holdings, Inc. operates as a digital asset technology company that mines digital assets with a focus on the bitcoin ecosystem in United States. The company was formerly known as Marathon Patent Group, Inc. and changed its name to Marathon Digital Holdings, Inc. in February 2021. Marathon Digital Holdings, Inc. was incorporated in 2010 and is headquartered in Fort Lauderdale, Florida.

MGT Capital Investments, Inc. engages in cryptocurrency mining business in the United States. It also leases space to other bitcoin miners; and provides hosting services for owners of mining equipment. The company was incorporated in 1977 and is headquartered in Raleigh, North Carolina.

XpresSpa Group, Inc., a health and wellness services company, provides spa services at airports. It operates through three segments: XpresSpa, XpresTest, and Treat. The company offers spa services, including massage, and nail and skin care, as well as spa and travel products; and retail products. It also operates wellness centers that provides COVID-19 screening and testing, and rapid testing services for other communicable diseases, such as influenza, COVID-19, RSV, Flu A&B, and seasonal flu vaccination services; and other medical diagnostic testing services. In addition, the company offers services through an integrated digital platform, and a relevant retail offering to the traveling public. As of December 31, 2021, it operated 52 spa and clinic locations in 24 airports in the United States, the Netherlands, and the United Arab Emirates. The company was formerly known as FORM Holdings Corp. and changed its name to XpresSpa Group, Inc. in January 2018. XpresSpa Group, Inc. is headquartered in New York, New York.