Dell offers several plans depending on which model you buy. You can do four years on some models.

Lenovo has a keep your drive program, if you meet the qualifications (which are a series of questions, the first of which is

Do you have any concerns about data privacy and data retention requirements?


On some of their business models, HP will do up to five years with keep your drive programs.

I believe however that most of the majors will say something like service provided by <<name of company>> technicians or authorized service provider, so if it's important to you not to use a third party make sure to check and double check.