Scotland's banks threaten to leave

Scotland risks losing the heart of its financial services industry if it votes in favor of independence from the United Kingdom.

The biggest names in banking and insurance say they would move headquarters and parts of their businesses to England if next week's referendum backs a split.

The Royal Bank of Scotland (RBS), Lloyds (LLDTF) and investment firm Standard Life (SLFPF) are making plans to protect customers and investors from the uncertainty that would follow. Lloyds owns the Bank of Scotland and pension provider Scottish Widows.

Clydesdale Bank, owned by the National Australia Bank (NABZY), may also join the exodus.

British finance has deep historical roots in Scotland. Edinburgh is the U.K.'s second biggest financial center after London.

The financial sector employs 100,000 people in Scotland. It manages over £800 billion ($1.3 trillion) in funds and generates roughly £7 billion ($11 billion) for the economy each year.

Royal Bank of Scotland was founded in 1727, and is nearly as old as the 307-year union between England and Scotland.