Gonna start by saying I'm not an expert but I've learnt a bit over the past two months (got huntland to number 8 on WG, which must prove something considering I'd never heard of the game till Nov 3rd).
So I had a quick look and:
a) Totally agree with Keto - dump all military stuff you can until you can afford it
b) Sales and purchase strategies are wrong. Only had a look at your first two companies but
Bangor Elementary schools
Quality of the Product 247.7
Trade Strategies
Sale Strategy Start at 238% of the market price and lower by 10% every month that the product remains unsold.
Buying Strategy Start at 108% of the market price and increase by 8% every month that the product is not delivered.
The market for Ele Schools is relatively strong and I run a sales strategy of +41 less 8% per month and shift stock quickly
Globe Highschools
Quality of the Product 242.4
Sale Strategy Start at 232% of the market price and lower by 10% every month that the product remains unsold.
Buying Strategy Start at 108% of the market price and increase by 8% every month that the product is not delivered.
The highschool market is very weak but I'm still getting +36 less 11% without getting a Too High Message
I've set all my corps to 95 plus 5% buying strategy and very rarely see a shortage
Go through each of your corps like this and you will quickly be able to improve their profitability
c) I like tax at 5% but setting your profit contribution to 100% guarantees losses. A better strategy would be 75%
d) This isn't necessarily a good investment versus return but your main focus at the beginning should be to improve your welfare index. I aim for at least 190 Education, 130 Health, 130 Transport. Start with education - at 108.9 you won't be able to keep your companies supplied with educated workers. Plus a higher welfare index increases companies production levels and their profitability
e) Your corporation mix isn't bad but there is a few I'm not sure about - look to run companies that operate in markets with demand only. Generally avoid food, agriculture and military businesses - they rarely show profits (some exceptions Ive found like chocolate)
f) attact more CEO businesses rather than state. If you want, message my enterprise PINC and I'll build a few (as long as you have workers and give me a guarantee the 5% tax rate).
As I say I have only been playing for about two months. All the advice above came from reading these forums and suggest you could do the same to pick up some helpful hints.
Let me know if this helps. If not, I'll have another look