WIMA is the most well known producers of modern film capacitors. Their capacitors are frequently seen in audio circuits and high precision circuitry. They are direct competitors to people like Vishay, EVOX RIFA and Philips BC (all of which make very high quality film capacitors).
WIMA makes a variety of these film capacitors, but the most famous in the audio world is the infamous “Black Box” capacitors. I happen to have 4 or 5 of these, but have yet to test them. If the performance is good enough, I’ll put at least one up for sale (they are NOS).