Olli Pentti Petteri Seppänen

Vahanen International Oy provides technical consulting services in the fields of construction and real estate. It specializes in architecture, building services engineering, property development and management, building supervision, building physics, surveys and inspections, energy and lifecycle management, and environmental consulting. The company was founded on December 16, 2008 is headquartered in Espoo, Finland.

Vahanen International Oy provides technical consulting services in the fields of construction and real estate. It specializes in architecture, building services engineering, property development and management, building supervision, building physics, surveys and inspections, energy and lifecycle management, and environmental consulting. The company was founded on December 16, 2008 is headquartered in Espoo, Finland.

Vahanen International Oy provides technical consulting services in the fields of construction and real estate. It specializes in architecture, building services engineering, property development and management, building supervision, building physics, surveys and inspections, energy and lifecycle management, and environmental consulting. The company was founded on December 16, 2008 is headquartered in Espoo, Finland.

Vahanen International Oy provides technical consulting services in the fields of construction and real estate. It specializes in architecture, building services engineering, property development and management, building supervision, building physics, surveys and inspections, energy and lifecycle management, and environmental consulting. The company was founded on December 16, 2008 is headquartered in Espoo, Finland.

Vahanen International Oy provides technical consulting services in the fields of construction and real estate. It specializes in architecture, building services engineering, property development and management, building supervision, building physics, surveys and inspections, energy and lifecycle management, and environmental consulting. The company was founded on December 16, 2008 is headquartered in Espoo, Finland.