Depending on which company is chosen from the dropdown list in question

Depending on which company is chosen from the dropdown list in question #1, I need that company's corresponding address automatically entered in the forms address box, along with company's corresponding phone #'s.

Please help!

You can do it through conditions, please check this guide: https://www.jotform.com/help/268-Conditional-Logic-Inserts-Text-Calculation-Into-A-Field 

Let us know if you need more help.