And there were a lot more players in aerospace then too. Apart from Boeing and Lockheed, Apollo also involved North American Aviation, Grumman, Rocketdyne, General Dynamics, Pratt & Whitney, Douglas, TRW, and Bell. Of those, only General Dynamics and Pratt & Whitney have not been acquired or merged into other companies.
Are there not _far_ more players in aerospace today than what you listed? Maybe those of today are not at the scale of the companies you listed at the height of the cold war, but we're really in a new era of space industry.
