drexel und weiss

What drexel und weiss does

drexel und weiss energieeffiziente Haustechniksysteme GmbH is an Austrian building-technology manufacturer headquartered in Wolfurt, Vorarlberg, that designs and produces energy-efficient HVAC systems for residential, multi-family, educational, and commercial buildings across the DACH region. The company's portfolio is organized around three pillars: ventilation with heat recovery (the aerosol silent series for residential and commercial use and the aerosol school 600/900 for educational buildings), heat pump-based heating (the aerosol smart series, smarterm A9), and complete solutions (the PKOM4 and x² A9/S series) that integrate heating, cooling, ventilation, and domestic hot water in single coordinated systems. Core technology centers on counterflow heat exchangers achieving up to 88% supply-air-side heat recovery efficiency, CO2-driven demand-controlled ventilation, SmartGrid-ready heat pump control, and integration with Loxone, KNX, and Modbus building automation platforms through the proprietary psiioSYSTEM and psiioApp.

The company operates through wholly-owned subsidiaries in Frankfurt am Main (Germany) and Oberhasli (Switzerland), distributing products exclusively via a certified installer network (Fachbetriebe) that performs technical planning, installation, and commissioning, with factory customer service validating warranty coverage. A direct e-commerce channel (shop.drexel-weiss.com) sells accessories, replacement filters, enthalpy exchangers, and sensors, generating an aftermarket revenue stream. Pricing is quote-based and project-driven rather than list-priced, and the company announced a portfolio-wide price adjustment effective March 1, 2025 in response to raw material, energy, transport, and logistics cost inflation. The company is privately owned by the Gasser Familie and forms part of the Swiss Gasser Gruppe conglomerate, a relationship that creates related-party reference customers such as Josias Gasser Baumaterialien AG and L. Gasser & Co. AG. As of December 2023, the company had delivered 2,422 aerosol school 600 units to schools and kindergartens since 2005, including 747 units across 44 German schools during 2023, and leadership transitioned from Jürgen Fink to Gerrit Boyer in June 2024. The passing of owner Josias F. Gasser in October 2025 leaves the future ownership structure within the Gasser Gruppe unresolved.

Name

drexel und weiss

Legal name

drexel und weiss energieeffiziente Haustechniksysteme GmbH

Website

https://drexel-weiss.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

51–100 employees

Short description

drexel und weiss is an Austrian manufacturer of energy-efficient HVAC systems — ventilation with heat recovery, heat pumps, and complete integrated solutions — serving residential, educational, and commercial buildings across the DACH region via a certified installer network and proprietary psiioSYSTEM controls.

Ownership category

akta.pro rank

Product category

HVAC Systems and Building Technology

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Auto Controls For Regulating Residential & Comml Environments (3822)

akta.pro primary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

akta.pro secondary industries

HVAC Controls & Optimization (Smart Thermostats, VAV, Chillers/Boilers Controls) (BPABAGAB), Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF), Ventilation System Installation (Exhaust Fans, ERV/HRV, Make-Up Air) (HSAOAGAI)

Keywords

• Energy efficient HVAC
• Heat recovery ventilation
• Heat pump systems
• Building automation controls
• Residential ventilation systems

Headquarters

HQ city

Wolfurt

HQ country

Austria

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. HVAC Equipment Sales: Primary revenue from selling ventilation units (aerosilent series), heat pumps (aerosmart, x² series), and complete HVAC systems. Products include residential and commercial ventilation systems, heat pump systems for heating/cooling/hot water, and accessories.
2. Accessories and Consumables: Online shop sales of replacement filters, enthalpy exchangers, sensors, and other accessories for installed systems.
3. Professional Services: Commissioning, installation oversight, and maintenance services through certified partners. Factory customer service performs commissioning to validate warranty coverage.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

drexel und weiss manufactures and sells energy-efficient HVAC systems for residential and commercial buildings in the DACH region. The product portfolio includes ventilation units with heat recovery (aerosilent series, aeroschool 600/900), heat pump systems (aerosmart, smarterm A9, x² series) for heating, cooling, and hot water preparation, and the proprietary psiioSYSTEM smart building control platform. Products are distributed through certified installation partners and used in single-family homes, multi-family buildings, schools, and commercial properties.

Product overview

drexel und weiss is an Austrian building technology company offering a unified portfolio of energy-efficient HVAC (heating, ventilation, air conditioning) solutions under a coordinated smart home/building control architecture. The product portfolio consists of three main categories: (1) Lüften (Ventilation) products including the aerosol silent series (exos, stratos, bianco, centro, business 600), vbox room-based control, and aerosol school 600/900 specifically for educational buildings; (2) Heizen (Heating) products including the aerosol smart heat pump series and smarterm A9; and (3) Komplettlösungen (Complete Solutions) including PKOM4, x² A9, and the x² S series that integrate heating, cooling, ventilation, and hot water in unified systems. All products are coordinated through the proprietary psiioSYSTEM for smart remote control and can integrate with third-party building automation platforms (Loxone, KNX, Modbus). The company also offers accessories including the aerocool 600 cooling module, heating/cooling registers, CO2 sensors, and room control devices. Products are manufactured in Austria.

Differentiator

Problem solved

Functional benefit

Brands

• aerosilent: Product line for ventilation units including exos, stratos, bianco, centro, and business models for residential and commercial applications.
• aeroschool
• aerosmart
• smarterm A9
• x²
• psiio
• vbox
• aerocool

Products and services

• aerosilent business 600

Quantifiable outcome

• Up to 39% heating energy savings in classrooms compared to conventional window ventilation
• +4 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability2 records

Feature6 records

Partnerships

One partnership is on record.

• Gasser Gruppeparent companyStrategic or Co-development PartnerParent company holding ownership stake in drexel und weiss. The Gasser Gruppe is a Swiss construction and building materials company based in Chur, Switzerland, with operations including the Josias Gasser Baumaterialien AG subsidiary.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/drexelundweiss
• Facebookfacebook.com/drexelundweiss
• LinkedInlinkedin.com/company/drexel-und-weiss-energieeffiziente-haustechniksysteme-gmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about drexel und weiss