🇳🇱 Netherlands · Government buyer · TenderNed award data
TenneT TSO B.V.
TenneT TSO B.V. awarded 71 contracts between 2024 and 2026 to 62 suppliers, most often in Professional Services & Consulting and Construction & Public Works. Its three most-awarded suppliers hold 13% of those contracts.
71 Contracts
62 Suppliers
€1.2B Total awarded
€7.2M Median award
Contracts by year
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| Year | Contracts | Value · € |
|---|---|---|
| 2024 | 29 | €108,624,203 |
| 2025 | 25 | €105,072,600 |
| 2026 | 17 | €1,010,142,629 |
33 of 71 carry a published amount
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Full tender history & spend breakdowns
71 contractsEvery contract this agency awarded, year-over-year spend, and sector split — plus CSV / API export.
Tender no.SupplierAmountDateSector
- ocds-ted-209025-2026Siemens Energy B.V.€800M26 Mar 2026 Construction
- ocds-ted-726546-2024Achmea Zorgverzekeringen N.V.€50.0M28 Nov 2024 Professional Services
- ocds-ted-681325-2025Martens en Van Oord Aannemingsbedrijf B.V.€38.5M16 Oct 2025 Construction
Sectors by contract count
count · value Premium
Every supplier this buyer awards to
62 suppliersThe complete vendor list ranked by spend — the full supplier base, not just the leaders.
#SupplierTotal awardedLast awardContractsShare
- 1Siemens Energy B.V.€800M26 Mar 202611%
- 2Sopra Steria Nederland B.V.€61.7M27 Jan 202646%
- 3Achmea Zorgverzekeringen N.V.€50.0M28 Nov 202411%
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