| # | Building | Location | Height | Floors | Building type | Year | Status | Role |
|---|---|---|---|---|---|---|---|---|
| 1 | OpernTurm | Frankfurt am Main, Hesse, Germany | 558 ft | 43 | skyscraper | 2009 |
|
MEP engineering |
| 2 | OpernTurm | Frankfurt am Main, Hesse, Germany | 558 ft | 43 | skyscraper | 2009 |
|
electrical engineering |
| 3 | Access Tower | Frankfurt am Main, Hesse, Germany | 230 ft | 21 | high-rise building | 1971 |
|
MEP engineering |