Most businesses will have some kind of equity finance created by capital introduced by shareholders / partners or retained reserves by the business. Alternatively, the business could be financed by external investors such as venture capitalists or business angels.
Debt financing can include the provision of bank loans and overdrafts; factoring or invoice discounting arrangements, and some form of asset finance against property, machinery and vehicles.
It depends on the needs of the business and the relevant availablity and access to those forms of finance as well as the price of the funds.
Tindles can help you analyse the situation and formulate the best mix of finance for the short, medium and long term requirements of the business.