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Company

Birrer + Seiler AG

Won 2 contracts in the public award notices on Contract wins. Each with its source.

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Their rate stays; our fee goes on top: 20% → 15% → 12%. Open book →

Contracts won from public award notices

Published 2026-08-25 · Switzerland · Energy & grids
IWB, Pipeline Construction Gas Decommissioning machine translation
Original title: IWB, Rohrleitungsbau Gasstilllegung
Winner
Birrer + Seiler AG
Buyer
IWB Industrielle Werke Basel
Value
CHF 15,895,483
Work type, our reading Construction & supervision
Source: TED, Tenders Electronic Daily (EU)
Published 2026-08-25 · Switzerland · Water
IWB, Pipeline Construction Gas & Water in Network Projects machine translation
Original title: IWB, Rohrleitungsbau Gas & Wasser bei Netzprojekten
Winner
Birrer + Seiler AG
Buyer
IWB Industrielle Werke Basel
Value
CHF 13,416,496
Work type, our reading Construction & supervision
Source: TED, Tenders Electronic Daily (EU)

From public award notices. A firm is listed because a notice names it as winner; this is not a client list.