US companies by market cap:

  1. Exxon-Mobil
  2. Apple
  3. Microsoft
  4. Walmart

Australia:

  1. BHP-Billiton (aka mining)
  2. Commonwealth Bank
  3. Westpac Bank
  4. ANZ Bank
  5. NAB Bank
  6. Rio Tinto (aka mining)
  7. Telstra (aka telecommunications)

The first ‘tech' company in Australia is Telstra at 7th, and they are ex-government ex-monopoly.