Johannus Orgelbouw is a Dutch builder of electronic organs for home and church use, located in Ede, Netherlands.

In 1971 the factory started production at Tuinstraat in Veenendaal and the Johannus organs were introduced at the Firato exhibition in Amsterdam.

The factory had an auditorium named after famous Dutch organist Feike Asma (1912–1984).

Hans expanded the company’s export activities to the USA, Canada, South Africa, Australia, and other countries.

In January 2016, the van de Weerds acquired Rodgers Instruments, an American organ manufacturer.