AST SpaceMobile (NASDAQ:ASTS) vs. Vertiv Holdings (NYSE:VRT) are high-growth companies offering significant returns for patient investors. AST has the look of an early-stage growth company, while Vertiv is a more established provider of power management solutions. Ast SpaceMobile: Early Revenue VolatilityAST SpaceMobile establishes and operates a satellite-based cellular broadband network that connects directly to standard mobile phones, delivering mobile internet access to individuals in remote or unserved locations worldwide. Vertiv: Consistent Revenue ExpansionVertiv specializes in the design, manufacturing, and servicing of critical systems and lifecycle services vital for data centers, communication networks, and diverse industrial applications worldwide. Foolish TakeAST SpaceMobile stock is richly valued, trading at 225 times its trailing 12-month revenue, while Vertiv Holdings is a larger, more established growth company trading at roughly 9 times revenue.