Getting text from DB and inserting into textbox; but not getting whole string

if I (echo "$CompanyInfo_Bill_ContactName";) I will get the whole string but when I insert it into the following, I only get the first word any thing after the first space i do not receive.

 echo "<input name='CompanyInfo_Bill_ContactName' value=$CompanyInfo_Bill_ContactName size='30' maxlength='100' type='text' tabindex='6'>";