Heat pumps

Walter Wettstein AG, Spezialunternehmung für Kältetechnik

5 awards published on simap.ch (Nov 2024 – Nov 2025), from 5 different contracting authorities.

Main sector: Heat pumps
CPV: 42511110
Main cantons: Zurich · Bern · Lucerne · Graubünden

5Awards

CHF 3.5mTotal of published amounts

5Contracting authorities

CHF 1.2mTypical amount (median)

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Awards per yearown analysis of the publications

Year	Awards	Total (CHF)
2025	3	2.4m
2024	2	1m

How large are the awards won by Walter Wettstein AG, Spezialunternehmung für Kältetechnik?

Number of awards by amount band.

CHF 100m and over0
CHF 10m to under 100m0
CHF 1m to under 10m3
CHF 100,000 to under 1m0
under CHF 100,0000
no attributable CHF amount2

Typical amount (median): CHF 1.2m – half of the awards with an attributable amount are above this figure, half below. “No attributable CHF amount”: no amount published, an amount in a foreign currency, or an award made to several companies.

Largest awards

Wärmeverbund Zollikon - Wärmepumpe Fernwärmezentrale RietWerke am Zürichsee AG · 11 Apr 2025
CHF 1.3m
Lenzerheide Sportzentrum - Ersatz KältetechnikLenzerheide Sportzentrum · 17 Nov 2025
CHF 1.2m
Eissportzentrum Jungfrau, Sanierung Piste und BandensystemEissportzentrum Jungfrau AG · 7 Nov 2024
CHF 1m

The largest award alone accounts for 36% of the total.

Awardsnewest first

Date	Contract	Contracting authority	Canton	Amount
17 Nov 2025	Lenzerheide Sportzentrum - Ersatz Kältetechnik	Lenzerheide Sportzentrum	GR	1.2m
18 Jul 2025	E10 Energiezentrale Mitte, BKP 342 Wärmepumpen und Kältemaschinen	Flughafen Zürich AG - Energie 2040	ZH	– not published
11 Apr 2025	Wärmeverbund Zollikon - Wärmepumpe Fernwärmezentrale Riet	Werke am Zürichsee AG	ZH	1.3m
3 Dec 2024	QZ Rosenfeld, Lieferung und Montage NH3 Wärmepumpe	Seenergy Luzern AG	LU	– not published
7 Nov 2024	Eissportzentrum Jungfrau, Sanierung Piste und Bandensystem	Eissportzentrum Jungfrau AG	BE	1m

Open tenders in related sectors6

Tenders still open whose CPV code (the EU’s standard classification of works, supplies and services) is the same as, or closely related to, that of this company’s past awards.

Schulhaus Kalktarren, Sanierung Schulanlage: BKP 244 Lufttechnische AnlagenStadt Schlieren, Bereich Liegenschaften · ZH · Ventilation and air-conditioning…
due 19 Oct 2026
PER10_BKP 370_LaborkapellenDIME - SBat (Archipel Generalplanung AG) · FR · Ventilation installation work
due 21 Oct 2026
HB3060.0451 Kühlung Schulzimmer Lüssiweg 24 Teil 2, ZugHochbauamt Kanton Zug · ZG · Partial air-conditioning installation work
due 23 Oct 2026
(b26042-4) Posieux, AGROSCOPE, AD, Sanierung des Forschungs- und Verwaltungsgebäudes / BKP 242Bundesamt für Bauten und Logistik BBL · BE · Central-heating installation work
due 23 Oct 2026
Centro Sanitario Bregaglia, Umbau Casa Ganzoni - BKP 244 LüftungsanlageCentro Sanitario Bregaglia · GR · Ventilation installation work
due 27 Oct 2026
(b26055-5) Bern, Monbijoustrasse 40, Gesamtsanierung / BKP 244Bundesamt für Bauten und Logistik BBL · BE · Ventilation and air-conditioning…
due 4 Nov 2026

Sectors4

Heat pumps2 awards
Installation work of cooling equipment1 award
Industrial machinery1 award
Installation work of refrigeration equipment1 award

Contracting authorities5

Eissportzentrum Jungfrau AG · 1 Seenergy Luzern AG · 1 Werke am Zürichsee AG · 1 Flughafen Zürich AG - Energie 2040 · 1 Lenzerheide Sportzentrum · 1

Other companies in related sectorsZurich