ATC Waldenburg GmbH was founded in 1999 as Mack GmbH and is based in Waldenburg. The company conducts remanufacturing of drivetrain components and performs disassembly, cleaning, identification, manual and mechanical processing as well as assembly and logistics services. The company manages inventories and provides pre-assembly of modules and spare parts supply for customers. Its customers include major automotive manufacturers, suppliers, construction machinery and agricultural-technology manufacturers; the company maintains a quality management system according to DIN ISO 9001:2015, an environmental management system according to DIN ISO 14001:2015 and holds several patents in component cleaning.
Die Demontage, Reinigung und Montage von Metallteilen sowie Montage- und Logistikdienstleistungen.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Stuttgart Local Court, HRB 571316 (as of 30 October 2026)
| Name | Type | City |
|---|---|---|
| Armin Grossklaus | Geschäftsführer(in) | Sunny Isles Beach / Florida |
| Greg Heald | Geschäftsführer(in) | Birmingham / Michigan |
| George Kostopoulos | Geschäftsführer(in) | Michigan |
| Christian Mack | Geschäftsführer(in) | Backnang |
Source: German Commercial Register (Handelsregister) Stuttgart Local Court, HRB 571316 (as of 30 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€9M2 | -€730,959 | €10,524,467 | — |
| 2023 | Rohergebnis€10.6M2 | €751,742 | €10,912,290 | — |
| 2022 | Rohergebnis€6.8M2 | -€4,560,813 | €11,003,579 | — |
| 2021 | Rohergebnis€10.6M2 | €223,531 | €8,689,460 | — |
| 2020 | Rohergebnis€9.6M2 | €439,901 | €8,831,475 | — |
| 2019 | Rohergebnis€10.6M2 | €1,345,469 | €8,944,095 | — |
| 2018 | Rohergebnis€10M2 | €1,508,990 | €7,972,512 | — |
| 2017 | Rohergebnis€8.7M2 | €1,415,042 | €7,154,301 | — |
| 2016 | small company1 | €538,801 | €5,329,416 | — |
| 2015 | small company1 | -€877,574 | €5,147,299 | — |
1 Small companies are not required to publish a profit-and-loss statement (§ 326 (1) HGB). The figure shown is the statutory ceiling under § 267 HGB where the balance-sheet total makes it binding — a company may exceed at most one of the three size criteria.
2 Rohergebnis nach § 276 HGB: Umsatzerlöse abzüglich Materialaufwand bzw. Herstellungskosten. Kleine und mittelgroße Kapitalgesellschaften dürfen diese Posten zusammenfassen; die Umsatzerlöse selbst sind dann nicht veröffentlicht und liegen über dem Rohergebnis.
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Source: German Commercial Register (Handelsregister) Stuttgart Local Court, HRB 571316 (as of 30 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €5,617,115 | 81.6% |
| Depreciation | €1,177,521 | 17.1% |
| Interest & Similar | €89,689 | 1.3% |
