Swiss Cleantech Startup Nullpunkt Raises Seed Funding

Nullpunkt AG, a Swiss cleantech startup based in Oberengstringen near Zurich, has raised a seed round of €445,500. The company develops ice-storage heat pump systems for single-family homes.

What the Company Does

Nullpunkt's patented Triton system combines an outdoor heat exchanger, an ice storage unit, and a heat pump. The design is intended to deliver efficient, near-silent heating without the borehole drilling or bulky outdoor units required by conventional geothermal or air-to-water heat pumps.

That combination targets a common friction point in residential heating: homeowners and installers often weigh the performance benefits of geothermal systems against the drilling requirements and outdoor equipment associated with them. Nullpunkt's approach packages ice storage and heat exchange into a system designed for single-family homes.

Company Background

Nullpunkt was founded by three experienced engineers. The company entered the market in October 2025 and has since installed multiple systems across Switzerland. It sells through a growing network of installation partners, a distribution model that fits the residential heating market where local installers typically own the customer relationship.

The Round at a Glance

Company: Nullpunkt AG
Round type: Seed
Amount: €445,500 EUR
Funding date: September 11, 2026
Stage: Seed
Location: Oberengstringen, near Zurich, Switzerland

No lead investor was disclosed for the round, and no individual investors were listed.

Why It Matters

Residential heating is a central battleground in European decarbonization efforts, and Switzerland's market has particular constraints: geothermal installations can require drilling, and outdoor heat pump units can raise noise and siting concerns. Nullpunkt's Triton system is designed around those constraints, using ice storage and a compact configuration to avoid both the borehole and the bulky outdoor unit.

The company's early traction — entering the market in October 2025 and installing multiple systems across Switzerland — gives it a base of real-world deployments at the seed stage. Its partner-based sales model also means growth depends on expanding the installer network rather than building a direct sales force.

What to Watch

At seed stage, the priorities for Nullpunkt are likely to include broadening its installation partner network, increasing the number of installed Triton systems across Switzerland, and proving the economics and reliability of the ice-storage heat pump design in the field. The round provides capital to support those efforts as the company moves beyond its initial market entry.