Finding out who pays US income tax and who doesn't would be an exhausting and detailed undertaking; well beyond the scope of IPVM, as John states. I am not exactly sure what your complaint is to be honest. I mean, yes I get the fact that they are not paying taxes and your corporation likely is. But, not knowing who you are or your circumstances, there are economies of scale at work here. Tyco is a huge multinational conglomerant. They are much bigger than just Exaq, or ADT or Simplex. When you study them, they are huge with their fingers into everything, all across the globe. Security is just a part of what they do. They, as the article states, are home-office (for tax purposes) in Ireland. That is not a new concept at all. It has been going on for years.
Ireland lowered their corporate tax rate several years ago to create a tax haven for Multi-nationals and to compete with primarily the Caribbean nations for that dollar. They figure some is better than none. (Interestingly enough, that strategy has come back to haunt them and they are considering increasing their corporate tax rate because their governement needs the money).
If you want to find fault with anyone at all, find fault with the US tax code which permits the practice. Deferral of Income from Controlled Foreign Corporations is the #1 Corporate tax break enjoyed by Multi-nationals and has been for some time now. There has been a very loud and vocal, albeit minority, that have opposed it for years. In principal, it is no different than any other tax break, be it alternative fuels, vacation home mortgages, large vehicle purchases, S-corp dividends, etc. Same principal, its just larger and it gets more attention. There are some I would think your accountant takes advantage of for you if he is any good at all. There is nothing illegal or immoral about it. It is the law.
Now don't get me wrong, I understand your indignence completely. They pay no taxes yet they win publicly funded jobs. I would also remind you, and I am not a fan of Tyco either, that they do provide jobs here, lots of them. They pay salaries, payroll taxes, 401k's, health insurance, and on and on. They do pay a lot of other taxes here. I am sure they pay their fair share of taxes from their perspective. I might also mention that no corporation truely pays taxes. When properly structured, a corporation should include it's taxes owed into the cost of goods sold. The consumer is actually paying the taxes. So if the tax rate goes to zero, it is better for the consumer, but it is a political nightmare for lawmakers. It looks bad.
Fundementally a corporation, regardless of size has one function. It exists to maximize it's profits for their investors. That is all they are doing. (I can't believe I am defending Tyco for antything).
A piece of advice I learned a long time ago. Don't spend any time worrying about the bids you don't win. You can't lose money you never had.