The former potash mine Hohenfels in Wehmingen houses the national German tramway museum, the Hannoversches Straßenbahn-Museum.

The core city of Sehnde is characterized by some characteristic buildings: The ceramic facility (in German Keramische Hütte) longingly produced bricks from around 1900 until it was closed in 1982.

[4] In addition to the traditional branches of industry such as the Kaliwerke, Sehnde is characterized by a diverse economic landscape.

Raum und Handwerk Verwaltung GmbH - a company based in Sehnde offers a variety of handicraft services, including carpentry, interior design, shop fittings, trade fair and event construction.

[5] Ernst G. Beißner GmbH & Co. Internationale Möbelspedition KG, a traditional company in the logistics industry, known for the transport and storage of high quality furniture.

Companies from the construction industry and building materials manufacturing are based in Sehnde and serve regional and national markets.

Patches are mainly produced here, a sewing service is offered and companies are advised on how to spread their brand messages in analog form.