The company Robert Bosch GmbH was founded in 1886 in Germany. It is active as a supplier for the automotive industry and manufacturer of durable goods, such as power tools and household appliances. In addition, the company is the world's largest packaging manufacturer. The Robert Bosch GmbH is present in around 50 countries. The game was given away by its subsidiary in France.

Dove is a brand of personal care products and is owned by the big company Unilever.

The game is among collectors known as "cardiogram". The game originally came from a seller from England and it carries the CGL logo. CGL stands for Computer Games Limited. CGL was a company based in London and it was the distributor of Game&Watch and other handheld brands in the UK.

Update January 28th 2018: The Plessey Company plc was a British-based international electronics, defence and telecommunications company, originated in 1917. In 1989, it was taken over by a consortium formed by GEC and Siemens which split the assets of the Plessey group.
Source and more information about Plessey: Wiki

Sicli is a company based in Geneva (Switzerland). It specializes in fire extinguishing material.