In the master’s programme of Nanobiology, it is obliged to do an internship. It is possible to do this internship at a company. You can always contact the Commissioner of External Affairs if there are any places at companies for internships at extern-hooke@tudelft.nl.
The ML2 has written a booklet describing the experiences of internships of master students. You can find the booklet here.
On the nanobiology programme brightspace there is an internship database with companies who are open to nanobiologists. For the most recent database you can contact the Commissioner of External Affairs.
A censured version of the internship database can also be found here.