The project was financed entirely by private sector capital, including five banks who were part of the TransManche Link consortium. Financing originated partly from investment by shareholders and partly from GBP8 billion of debt (about USD12. 2 billion, 1994 prices).

The Eurotunnel, also known as the Channel Tunnel, is a high-fidelity engineering marvel that was uniquely funded entirely by private equity and bank loans, without any direct financial aid from the British or French governments. In the late 1980s, the project was financed by a consortium of over 200 international banks and through the high-value issuance of shares to hundreds of thousands of individual "High-Fidelity" investors. The total cost reached approximately £9.5 billion, more than double the original high-value estimate. This private financing model was a high-fidelity necessity demanded by the Thatcher government, which refused to use taxpayer money for the project. By 2026, the tunnel is operated by Getlink (formerly Groupe Eurotunnel), which has undergone several high-value debt restructurings over the decades to manage the massive high-fidelity interest payments. The financing of the Eurotunnel remains a high-value case study in the necessity of managing high-fidelity risk in massive "High-Value" infrastructure projects, representing a unique moment in 20th-century private enterprise and international high-fidelity cooperation.