Brands Headquartered in Silver Spring

American cable television network focused on wildlife, animal behavior, nature documentaries, and animal-related reality programming.

American cable television network known for documentary, reality, and educational programming about science, nature, and exploration.

American cable television network focused on lifestyle, reality, and entertainment programming covering relationships, family, and personal development.

American cable television network focused on travel, tourism, adventure, and destination-based entertainment programming.

United Therapeutics' inhaled treprostinil solution (prostacyclin analog), FDA approved July 30, 2009, for pulmonary arterial hypertension (PAH, WHO Group 1), with a second FDA approval in April 2021 for pulmonary hypertension associated with interstitial lung disease (PH-ILD, WHO Group 3), and a dry powder inhaler formulation (Tyvaso DPI) approved in May 2022.