Denver-based Hotel Engine, an online hotel booking and management service for business travel, raises $16M Series A at a $150M+ valuation (Sean O'Neill/Skift)

Sean O'Neill / Skift:
Denver-based Hotel Engine, an online hotel booking and management service for business travel, raises $16M Series A at a $150M+ valuation  —  The funding of business travel management startup Hotel Engine underscores how there's a lot of money and energy pouring into the sector.