Advent Technologies Holdings, Inc. operates as an advanced materials and technology development company. The company is headquartered in Livermore, California and currently employs 26 full-time employees. The company went IPO on 2018-11-16. The firm develops, manufactures, and assembles complete fuel cell systems as well as supplying customers with critical components for fuel cells in the renewable energy sector. Its core product offerings are full fuel cell systems and the Membrane Electrode Assembly (MEA) at the center of the fuel cell. The firm develops and manufactures high-temperature proton exchange membranes (HT-PEM or HT-PEMs) and fuel cell systems for the off-grid and portable power markets and plans to expand into the mobility market. The company holds the IP for next generation HT-PEM that enables various fuels to function at high temperatures and under extreme conditions, suitable for the automotive, aviation, defense, oil and gas, marine, and power generation sectors.