| 1981: | Wilfried Tappe founds the Herford-based company INOMETA Maschinenbaugesellschaft mbH. Production of lightweight rollers made of aluminum and carbon composite (CFRP) is launched |
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| 2000: | xperion GmbH is established. Portfolio is extended to carbon composite products |
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| 2001: | Acquisition of Alpha Composite GmbH in Kassel, which then became xperion Energy & Environment GmbH |
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| 2001: | The AVANCO GmbH is established as the parent company |
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| 2002: | Acquisition of FS Composite GmbH & Co. KG in Laudenbach, which then became the xperion components GmbH & Co. KG |
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| 2004: | Acquisition of EADS Space Transportation GmbH in Immenstaad, which then became the xperion Aerospace GmbH |
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| 2007: | Acquisition of ACM Advanced Composites & Machines GmbH in Markdorf, which today belongs to the XELIS |
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| 2008: | Joint Venture and build-up of production site in Appleton (USA) |
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| 2008: | Acquisition of Metso Paper Inc. (Finland) |
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| 2010: | Acquisition of production site Warburg (Germany) |
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| 2013: | Expansion of xperion Energy & Environment by building new production site in Ohio, USA |
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| 2013: | Transfer of assets from production site Finland to other entities |
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| 2016: | Divestment of xperion Energy & Environment GmbH (Germany & USA) |
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| 2016: | Transfer of assets from production site Appleton (USA) to INOMETA |
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| 2016: | Divestment of xperion Aerospace GmbH in Immenstaad |
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| 2016: | Transfer of assets from production site Warburg (Germany) to INOMETA |
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| 2018: | Renaming xperion components GmbH & Co. KG in DYNEXA |
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| 2018: | Renaming xperion Performance Polymer Composites in XELIS |
