This process is split into two steps. The majority of trade vendors don't report to the business credit reporting agencies. Most businesses don't understand this process.
Business Credit Advisors will guide you in the process of getting approved for credit that you can actually use, that will strengthen your business credit profile and scores. Again, no personal check will be necessary and it will be attached to your EIN credit. These vendors will give you access to the products and services that you are likely already using now but now you will be building credit and decrease your cash flow constraints.
These initial tradelines are good for starts ups, don't require bank statements or tax returns, are unsecured (no collateral needed), and don't check your personal credit. They will help build your business credit scores and reports with Dun & Bradstreet, Equifax Commercial, and Experian that is necessary to get fleet, store, and revolving cash credit.