Mainzer Netze GmbH: public contracts and tenders
Mainzer Netze GmbH awarded 32 public contracts worth €35.9M where a value is stated since 2023-11-03; the architecture and engineering services contract held by Werner Hartwig GmbH ends on 2027-01-04 (signed + duration). Source: Arcadium Data, data as of .
Awarded value = the award values the notices state (EUR at the notice date), 1 of 32 awards; framework agreements (a ceiling, not spend) and implausible values are left out.
Buyer
| Field | Value |
|---|---|
| Name | Mainzer Netze GmbH |
| Country | Germany |
| Buyer type | Public undertaking |
| City | Mainz |
| Sources | service.bund.de (Germany), EU TED |
Top suppliers
| Supplier | Registry number | Website | Awards | Value won alone |
|---|---|---|---|---|
| S&V Bau GmbH | 3 | n/a | ||
| Werner Hartwig GmbH | 3 | n/a | ||
| Landis+Gyr GmbH | 2 | n/a | ||
| SIEMENS ENERGY Global GmbH & Co KG | 2 | n/a | ||
| Bickhardt Bau SE | 1 | n/a | ||
| Bieske und Partner GmbH | 1 | n/a | ||
| BN Automation AG | 1 | n/a | ||
| EasyMeter GmbH | 1 | n/a | ||
| eBZ GmbH Verena Borghoff | 1 | n/a | ||
| Eder Brunnenbau GmbH | 1 | n/a | ||
| EQOS Energie Deutschland GmbH | 1 | €35.9M | ||
| G&B Kabelservice GmbH | 1 | n/a | ||
| gepe Gebäudedienste PETERHOFF GmbH | 1 | n/a | ||
| Ingenieurbüro Mielke GmbH | 1 | n/a | ||
| mz³ architekten ingenieure GmbH | 1 | n/a |
Suppliers named on Mainzer Netze GmbH's award notices (the top 15 of 21); registry number and website where the supplier is linked to its register entry. Winners that could be a private person are withheld.
Contracts ending in the next 18 months
End dates checked against the official notice: 99% right (n=100, 95% CI 94%-100%, 2026-10-26; method).
Award notices of Mainzer Netze GmbH whose contract period ends in the next 18 months: the end date the notice states, else its start or signature date plus the stated duration. 13 contracts; a framework's value is a ceiling and is not shown.
Open calls for tender
| Deadline | Call for tender | Published | Estimated value |
|---|---|---|---|
| 2026-10-30 | Tief- und Rohrbau DN800, Abschnitt B43, Bischofsheim, TP01339 - 30029180 | 2026-09-30 | n/a |
| 2026-11-06 | Rahmenvereinbarung Wechsel und Einbau von Zählern - Los 1 Strom / Los 2 Gas / Los 3 Wasser-30026916 | 2026-10-08 | €11.0M |
| 2026-11-06 | Rahmenvereinbarung Wechsel und Einbau von Zählern - Los 1 Strom / Los 2 Gas / Los 3 Wasser-30026916 | 2026-10-21 | €11.0M |
| 2026-11-20 | Erneuerung und Erweiterung Umspannwerk Hechtsheim und Freileitungsumbau | 2026-10-19 | n/a |
| 2026-11-23 | 20kV-Kabel, Anna-Birle-Straße, Mainz-Kastel, TP01716 - 30029450 | 2026-10-23 | n/a |
Calls with a deadline of 2026-10-26 or later (not awarded yet).
Spend by sector (CPV divisions)
| Sector | CPV | Awards | Awarded value |
|---|---|---|---|
| Construction work | 45 | 8 | €35.9M |
| Architecture and engineering services | 71 | 8 | n/a |
| Electrical equipment and lighting | 31 | 5 | n/a |
| Laboratory and precision equipment | 38 | 2 | n/a |
| Installation services | 51 | 1 | n/a |
| Waste, cleaning and environmental services | 90 | 1 | n/a |
Award notices with a named winner, by the main CPV code; value = the total the notices state, in EUR at the notice date; framework agreements (a ceiling, not spend) and implausible values are left out.
Recent awards
| Published | Contract | Winners | Value |
|---|---|---|---|
| 2026-09-29 | Tiefbauplanung Anschluss RZ Haifa-Allee, Mainz, TP01155 - 30027777 | Werner Hartwig GmbH | n/a |
| 2026-06-01 | Objektplanung Mühltalstraße 58+60, Mainz - 30027483 | mz³ architekten ingenieure GmbH | n/a |
| 2026-03-26 | Erneuerung Prozessleitsysteme, Wasserwerk Eich, TP00961 - 30026048 | BN Automation AG | n/a |
| 2026-03-04 | RV Lieferung 123 kV - Drehtrennschalter - 30025431 | SIEMENS ENERGY Global GmbH & Co KG | n/a |
| 2026-02-27 | RV Lieferung, Montage und Inbetriebnahme von 123-kV-Leistungsschalter - 30025429 | SIEMENS ENERGY Global GmbH & Co KG | n/a |
| 2025-11-24 | RV Lieferung 123-kV-Wandler - 30025430 | PFIFFNER Instrument Transformers Ltd | n/a |
| 2025-11-07 | Planung Tiefbau, H2-Initialtrasse Mainz, TP01628 - 30025407 | Werner Hartwig GmbH | n/a |
| 2025-10-31 | Planung Hochbau, Umbau Wasserwerk Eich, TP00961 - 30025380 | zigmo engineering GmbH | n/a |
| 2025-08-19 | Mainz - Umspannwerk Obere Austrasse | EQOS Energie Deutschland GmbH | €35.9M |
| 2025-07-23 | Rück- und Umbau Brunnen 2-5 Wasserwerk Hof Schönau, TP01134 - 30023571 | Eder Brunnenbau GmbH | n/a |
Follow this buyer free
Get Mainzer Netze GmbH's new calls for tender, awards and contracts ending in a free weekly email (Tender Radar free tier: a saved search for this buyer's name in Germany). The same data is in the REST API and the MCP server.
Sources: service.bund.de (Germany), EU TED, read through their open-data feeds without logging in. Buyer = contracting authority as named on the notice; notices are grouped by the normalised name and country.
Source: Arcadium Data tenders database, 3,611,641 official public procurement notices from EU TED and UK Find a Tender, read through their open-data APIs (no logins). Winners that could be a private person (sole traders) are withheld; buyers are public bodies. Data as of 2026-10-26.
Questions
How many public contracts has Mainzer Netze GmbH awarded?
Mainzer Netze GmbH published 32 contract award notices between 2023-11-03 and 2026-09-29; the 1 that state a value add up to €35.9M (official notices, as of 2026-10-26).
Who are Mainzer Netze GmbH's biggest suppliers?
By contract awards: S&V Bau GmbH (3), Werner Hartwig GmbH (3) and Landis+Gyr GmbH (2) (as of 2026-10-26). Winners that could be a private person are not named.
Which Mainzer Netze GmbH contracts end soon?
13 contracts awarded by Mainzer Netze GmbH end in the next 18 months. The soonest with a named holder is the architecture and engineering services contract held by Werner Hartwig GmbH, ending on 2027-01-04 (signed + duration) (as of 2026-10-26).
Does Mainzer Netze GmbH have open tenders now?
Yes: 5 calls for tender from Mainzer Netze GmbH are open today (deadline 2026-10-26 or later) (as of 2026-10-26).
What does Mainzer Netze GmbH buy?
Most of Mainzer Netze GmbH's awards are in Construction work (CPV 45) (8), Architecture and engineering services (CPV 71) (8) and Electrical equipment and lighting (CPV 31) (5) (as of 2026-10-26).
Cite as: Arcadium Data, "Mainzer Netze GmbH tenders and contracts: 32 awards, suppliers, contracts ending", https://arcadiumdata.io/tenders/buyers/mainzer-netze-gmbh-de/, data as of 2026-10-26.