To make it easier to understand we can say that Account Statement refers to almost any official summary of an account, wherever the account is held. This may be provided by any of the listed companies or as a matter of fact any of the business houses for their investors or for the taxation purposes.
Insurance companies may provide account statements summarizing paid-in cash values, for example. Account statements should be scrutinized for accuracy, and historical statements are critical for budgeting.
Reading an account statement is an art s companies generally put the losses in different head and may cover up the same with a fine print. So try to read between the lines while reading an account statement.