The Institution of Engineers and Shipbuilders in Scotland (IESIS) is a multi-disciplinary professional body and learned society, founded in Scotland, for professional engineers in all disciplines and for those associated with or taking an interest in their work. Its main activities are an annual series of evening talks on engineering, open to all, and a range of school events aimed at encouraging young people to consider engineering careers. IESIS is registered as a Scottish Charity, No SC011583 and is the fourth oldest, still-active, registered Company in Scotland.