You can build business credit without a personal guarantee. Begin with the basics and I go over your choices in the video. Quill, Grainger just to name a few. You purchase over $100 and ask for Net30. That is just the beginning and there are a few more steps such as Dun N Bradstreet number, which is free. Do not pay for DNB number, nor pay for an upgrade from DNB when they call.
Please checkout the video for more details on other valuable information to your company on the road to business funding.