If you are looking for information about any company then you will want to refer to the right websites so they can provide you with decent information that would help your purposes. If you have time to research online then you may well do so however if you are busy then there are several third party service providers that you could outsource the process to, and they would be offering you a complete report about the company that you would want details about.
These companies themselves vary a great deal so you will want to ensure you are hiring the right firm that have appropriate channels to get their information from as opposed to someone who would depend entirely upon the internet for such details about companies. The internet is of course a great resource however you cannot depend exclusively upon it for detailed report about a company that you may be looking to do business with.
For example, when looking for information about Swiss Ameropa Binningen, you will only be able to gather limited amounts of data if you seek information online however through an appropriate due diligence firm, you will be able to get better details. So do your part in ensuring you only assign this important task of research to the right company.