Regardless as to whether you are collecting or paying funds, the other party will see the following information:

•Amount

•Your company name

•Description of transaction (Entered during ACH Setup, usually describes transaction purpose, such as AutoPay.)

•Effective transaction date

•Actual transaction post date

•Individual ID Name from the detailed transaction

•Individual ID Number from the detailed transaction
 

Your vendors may or may not see any addenda information, depending solely on the service provided to them by their bank.
Of course the statement will also include other fields, such the amount and actual posting date to the account.