The companies on this year's list face major, potentially industry-shaping turning points in the coming weeks and months. That's especially true for Virgin Galactic and SpaceX. Both privately held, billionaire-backed firms are preparing to lay it on the line with high-stakes launches that millions will be watching. It's also true of Globalstar and Inmarsat, two mobile satellite services firms poised to up their games, and startup GeoMetWatch, whose hosted payload play with AsiaSat has big implications for the broader weather satellite market.
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