Business accelerator as an institution of venture infrastructure

The article deals with business accelerators as an institutions of venture infrastructure that provide a wide range of services: legal and accounting support, mentoring, information and PR-support, training. The author gives a description of the business accelerators andpresents an original classification according to various grounds, including stage of venture project implementation, client base, number of residents, objectives, forms of ownership, modes of work organization, geographical characteristic, sectoral attribute.