Google is an information technology company. They build information technology, and use it to make money. This is in contrast to an ad agency that uses other people's software to sell ads. That company doesn't create technology.
If an oil company creates new technology to extract oil, then they are (obviously) a technology company. If an oil company outsources all technology development, they are not.
If an oil company creates new technology to extract oil, then they are (obviously) a technology company. If an oil company outsources all technology development, they are not.