PERI is the biggest provider and manufacturer of formwork and scaffolding systems in the world. And we continue to grow: through the large-scale expansion of the production facilities at the main production plant in Weiss......PERI is the biggest provider and manufacturer of formwork and scaffolding systems in the world. And we continue to grow: through the large-scale expansion of the production facilities at the main production plant in Weissenhorn, PERI has set the course for the future. Large, world-wide combined numbers of units lead to favourable manufacturing costs and reliable quality due to a high level of automation.