Hitting the IPO benchmark

There are a few fine guides in the forum on how to perform an IPO. Sadly, my corporations do not have sufficient value yet. Any advice or suggestions on how to bring them to the 300B benchmark (hopefully a bit quicker than the slow growth I'm currently experiencing) would be greatly appreciated.

You can keep them full of cash and maximum supplies, but really the main thing is maximizing their profitability.

Many thanks Crafty. I'll tinker with the trade strategies and see if I can get the bottom line up. Slow slog with getting upgrades - although it's getting there.