art collector. With his fortune, he amassed an art collection first housed privately, but since 1897 housed public in the Ny Carlsberg Glyptotek in central Copenhagen.The companies were merged and run under Carl's direction in 1906 and remained so until his death in 1914.

Jacobsen set up the Carlsberg Laboratory in 1875, which worked on scientific problems related to brewing. It featured a Department of Chemistry and a Department of Physiology.