Work will start on site next month to build the Siemens Pavillion in the heart of east London’s new Green Enterprise District.
ISG won the job from a shortlist which also included BAM, Vinci and Sir Robert McAlpine.
Siemens wants to create an iconic building to be a permanent showcase for sustainable technologies and a centre for the public, customers and students to meet and explore the innovation required to achieve a low carbon society.
The centre expects to attract around 100,000 visitors a year and will be located at the western end of the Royal Docks near to the ExCeL centre and London City airport.
The Siemens Pavilion will comprise an exhibition, which will be open to the public, a 300-seat auditorium and facilities for educational tour groups.
There are plans for interactive exhibits, seating areas, a café and shop as well as outdoor seating areas and exhibits.
Siemens has appointed a consortium comprising Pringle Brandon and Wilkinson Eyre Architects to design the pavilion.
It will cover an area of 3,687m2, over three storeys, the total area to be developed is 7,002m2.
The Siemens Pavilion is expected to be completed and open to visitors in early 2012.