The business plan is a powerful and very useful tool to check the company performance in the forecasted timing; the companies are exploiting this tool for internal purposes (for planning and asset management), and for external purposes (to inform the stakeholders about the strategies, economic forecasts, financial projections of the company, or to seek capital from institutional investors, banks, venture capitalists and investors or lenders in general).
Business plan is tool useful for the fund raising activity, especially targeted to bank lenders.
In some cases the final goal of the company is to boost its financial situation and the preparation of the business plan and the evaluation of its equity value are documents regularly requested by banks or financial institutions to verify the repayment capability of the company.