Investec is an international specialist banking and asset management group. It provides a range of financial products and services to a client base in four principal markets: the United Kingdom, South Africa, Australia and Ireland. Investec is listed on the London Stock Exchange and the Johannesburg Stock Exchange. Investec is a FTSE 250 company.

Investec's South African headquarters are at 100 Grayston Drive Sandown, Sandton.

Investec's UK headquarters are at 2 Gresham Street in Central London.

Investec was founded as a small leasing and financing company in 1974 in Johannesburg by Larry Nestadt, Errol Grolman and Ian Kantor. It has expanded through a combination of organic growth and strategic acquisitions.

It secured a banking licence in 1980 and was first listed on the JSE Securities Exchange in South Africa in 1986, after merging with Metboard, a trust company. In 1988, Investec Bank Limited was restructured into Investec Group Limited ("IGL"), giving Investec Management and staff control of the company.