The address of a letter to a board of directors begins with the title "Board of Directors." No quotation marks are used. The company's name goes on the next line. The third line has the street address, and the city, state and ZIP code are placed on the following line.
Under the address, the next line has "Attention:" followed by the first and last name of the chairman and a comma. The designation "Chairman" goes after the punctuation mark. Under the chairman's line is a line for the CEO. The same format is used, except the designation "Chief Executive Officer" replaces "Chairman." After the full address, the salutation for the letter begins "Dear Members of the Board:". No quotation marks are used.