About us
Hammarby Sjöstad ekonomisk förening (HSEF) was founded in 2002 by several construction companies like Skanska, Peab, NCC and JM. The aim of the association was to ensure the building of a unified broadband networks based on fiber.
Today, Hammarby Sjöstad has most probably the most developed city in the world with at least two different fibre connections to all properties.