Institute of Electrical Engineers (IEE)

The IEE was founded in 1871, and became the largest professional engineering society in Europe with worldwide membership of over 130,000, its members ranging from students to the most distinguished and highly qualified members of the profession.

In 2006 the IEE joined with the Institution of Incorporated Engineers (IIE - dating back to 1884) to form the  Institution of Engineering and Technology (IET). Follow the given Wikipedia link for more information.