Gender neutral salutation for business letter?

[Donclare]

I am typing a letter to a business for which I have no contact name. I need
a salutation which is gender neutral. Any suggestions?

 

[Tony Jollans]

Dear Friend,

 

[Marz]

Dear Valued Customer

Dear Friend,

 

[Suzanne S. Barnhill]

I generally use the business name: "Dear General Motors," "Dear AT&T." Or
you can use "To Whom It May Concern" or "Dear Sir or Madam."

 

[Charles Kenyon]

To whom it may concern:

or

Hello,