Europe’s largest professional engineers’ body, based in Stevenage, celebrated its 140th anniversary on Tuesday.

The Institution of Engineering and Technology (IET), which employs 430 staff at its headquarters at Michael Faraday House, marked the anniversary with a cake cutting – 140 years to the day the organisation was founded.

The institution started life as the Society of Telegraph Engineers on May 17 1871 at a meeting attended by eight people in London. Today, it has over 150,000 members in 127 countries around the world, supporting them throughout their careers.

Chief executive Nigel Fine said: “The IET has constantly evolved over the years to reflect the changing needs of the engineering community and the wider world while providing our members with a professional home for life.

“We have had strong connections with the local area for over 40 years when we opened offices in Hitchin and Stevenage. We moved to Michael Faraday House in 1991, which now houses the majority of our 500 staff. We look forward to continued success in the local area.”