Founded in 2014 by electrical engineer and product designer Brach Siemens, Zeppelin Design Labs is a Naperville, Illinois-based company specializing in DIY audio electronics kits and hand-built gear for musicians and makers. After years of designing guitar amplifiers and effects pedals for other companies, Siemens launched the brand to enable musicians to build their own gear, offering products across categories including amplifiers, pedals, microphones, synthesizers, and controllers. All products are available as DIY kits, with many also offered fully assembled.

Among the company's standout products is the Cortado MkIII, a balanced and buffered contact microphone with a phantom-powered onboard preamp designed to capture vibrations from solid surfaces. The Percolator is a distinctive 2-watt tube amplifier that uses a single NOS Compactron tube for its entire signal path — unlike any other production guitar amp — making it suitable for electric guitar, cigar box guitar, and harmonica. The Quaverato is a harmonic tremolo pedal featuring a digitally controlled, all-analog signal path with optional full MIDI implementation. On the synthesis side, the Altura MkII+ is a theremin-style MIDI controller and arpeggiator that uses range finders in place of antennas to send MIDI data to external synthesizers, and it pairs with the company's own Macchiato Mini Synth.

Zeppelin Design Labs has 2 products cataloged on Equipboard, including Tremolo Effects Pedals and Volume Effects Pedals.