Answer to How To Sort Contacts by Company Name"
I just got my first iPhone s+ and disappointed there is no categories for company separate from all contacts. If there is, pls let me know. So this is how I sorted it out. It's still in All Contacts but under Company. Make sure that in your settings, you chose Prefer Nicknames.
1. Add new contact and name it Company or Business or any group you want. Then touch Done.
2. Add new contact and name it Company Apple or Company Blueberry, as long as you type Company before the real name of company.
3. Go to add fields and choose Nickname. Go up to your info and type the nickname of the company i.e. Apple, Blueberry. Complete the rest of your contact info and touch Done. You're welcome.
iPhone 6s Plus