The Thueringer Glasfasergesellschaft mbH (TGG), based in Erfurt, focuses on broadband expansion using fiber optic technology. The company is responsible for the construction, acquisition, management, and operation of broadband networks and associated infrastructure. Additionally, the company provides telecommunications and other services for its shareholders and their members. TGG is majority-owned by KET (80%) and KEBT (20%). The company is a small company under § 267 (1) HGB and is therefore not required to publish a profit-and-loss statement.
die Breitbandversorgung bzw. der Breitbandausbau mittels Glasfaser bzw. zukünftiger neuer Technologien. Dazu gehören insbesondere die Errichtung, der Erwerb, das Halten, die Verwaltung und der Betrieb von Breitband-, insbesondere Glasfasernetzen inkl. dazugehöriger Anlagen zur Breitbandversorgung sowie die Erbringung von Telekommunikations- und sonstigen Dienstleistungen im Zusammenhang mit Breitbandnetzen für ihre Gesellschafter und deren unmittelbaren Mitglieder bzw. Gesellschafter
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) Jena Local Court, HRB 518879 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Dirk Erbstößer | Geschäftsführer(in) | Sömmerda |
Source: German Commercial Register (Handelsregister) Jena Local Court, HRB 518879 (as of 1 November 2026)
| Date | Contract | Value |
|---|---|---|
| 28.9.2026 | Contracting authority | — |
| 10.7.2026 | Contracting authority · Telekom Deutschland GmbH | 6.201.500 € |
| 10.7.2026 | TGG - Bauauftrag mit Planungs- u. Bauleistungen zur Anbindung unterversorgter Gebiete des SHK Cluster 1, Ostthüringen Cluster 2 und Cluster VG Gramme-Vippach Contracting authority · Allinq Networks GmbH | — |
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | small company1 | -€282 | €14,638 | — |
| 2023 | — | -€498 | €4,418 | 9 |
| 2022 | — | -€206,000 | €4,989,000 | 10 |
| 2021 | — | -€25,021 | €1,038,465 | 0 |
| 2020 | — | €0 | €1,000,000 | — |
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.
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Source: German Commercial Register (Handelsregister) Jena Local Court, HRB 518879 (as of 1 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €950,000 | 96.6% |
| Material Costs | €8,000 | 0.8% |
| Depreciation | €25,000 | 2.5% |
