Ventomaxx

What Ventomaxx does

Ventomaxx GmbH is a German manufacturer of decentralized and centralized ventilation systems headquartered in Landshut, Lower Bavaria. Founded in 2004 and operating from a single production site, the company designs and builds compact ventilation units — passive outdoor air vents, active ventilation with and without heat recovery, exhaust air systems, and electronic control units — engineered for sound insulation (41–74 dB Dn,e,w, independently certified by ift-Rosenheim) and heat recovery efficiency up to 85%. Its portfolio spans the AIR CONTROL passive airflow supply system, the dB Maxx II and WRG MAKANI heat recovery series, the SEPHYR single-room unit (>250 m³/h), the BALNEO EX wet-room extractor, and the ZS-SMART / ZS-TOUCH / ZS-PLUS PRO control family, organized since February 2026 into EASY (stock, 5-day delivery), FLEX (customizable standards), and CUSTOM (tailor-made) tiers.

The company serves the German-speaking D-A-CH market (Germany, Austria, Switzerland) with a direct field-sales force of regional sales managers, technical sales experts, and project assistants, supplemented by international partners outside the region. End-use segments include multi-family residential, hotels, schools and kindergartens, commercial buildings, and single-family homes — reached primarily through TGA planners, architects, tradespeople, and developers rather than direct end-customer contracts. Pricing is quote-based on the CUSTOM and FLEX tiers and unit-based on the EASY tier; recurring revenue from filters and accessories is sold through a dedicated e-commerce shop.

Since 2018 Ventomaxx has been a wholly-owned subsidiary of AF Ventilation GmbH and is led by Managing Partner Dr. Gordian Rättich alongside Managing Director Christoph Hensel. Reported scale metrics include 35–50 employees, 10,000+ customers worldwide, and a product portfolio with 20+ years of cumulative development. The company has been awarded Top Employer SME 2022 (FOCUS-Business) and five consecutive kununu Top Company awards through 2026.

Name

Ventomaxx

Legal name

Ventomaxx GmbH

Website

https://ventomaxx.de

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Ventomaxx GmbH is a Landshut-based German manufacturer of decentralized ventilation systems — passive air vents, heat recovery units, and smart controls — engineered for category-leading sound insulation, serving D-A-CH residential, hotel, school, and commercial construction through TGA planners and developers.

Ownership category

akta.pro rank

Product category

HVAC Ventilation Systems

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334)

SIC

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

akta.pro primary industry

Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB)

akta.pro secondary industries

Ductwork, Duct Fittings & Air Distribution (Diffusers/Grilles/Registers) (IMADANAC), Ventilation System Installation & Repair (Bath/Kitchen Fans, ERV/HRV) (HSAOAIAF), Ventilation System Installation (Exhaust Fans, ERV/HRV, Make-Up Air) (HSAOAGAI)

Keywords

• Decentralized ventilation systems
• Heat recovery ventilation
• Residential HVAC systems
• Controlled living space ventilation
• Sound-insulated air vents

Headquarters

HQ city

Landshut

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ventilation Systems Hardware Sales: Sale of decentralized and centralized ventilation systems including passive airflow supply units, active ventilation with and without heat recovery, and accessories. Hardware sales through direct sales force and regional partners.
2. Customized Solutions: Custom-made ventilation solutions for special requirements with application engineers providing support from initial idea through planning to implementation.
3. Controls and Accessories: Sale of control units (ZS-TOUCH, ZS-SMART, ZS-PLUS PRO), filters, and system accessories.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels10 records

Core offering

Ventomaxx GmbH designs, manufactures, and supplies compact, highly efficient decentralized and centralized ventilation systems for residential and commercial buildings from its facility in Landshut, Lower Bavaria. The portfolio spans passive outdoor air vents (Außenluftdurchlässe), active supply and exhaust air systems, ventilation units with heat recovery (WRG), exhaust air fans, single-room ventilation, and matching control units and accessories, organized into EASY (stock), FLEX (customizable), and CUSTOM (tailor-made) product lines.

Product overview

Ventomaxx develops, manufactures, and sells compact and highly efficient ventilation systems made in Germany (Landshut, Lower Bavaria). The product portfolio is organized into three product lines (EASY, FLEX, CUSTOM) and includes decentralized and centralized ventilation systems, outdoor air vents (Außenluftdurchlässe/ALD), systems with heat recovery (WRG MAKANI, WRG MAKANI R, V-WRG RONDO PLUS, Z-WRG RONDO PLUS), exhaust air systems (BALNEO EX®), single-room ventilation (SEPHYR), passive airflow supply (AIR CONTROL), supply and exhaust air systems, wall mounting blocks, and comprehensive control units (ZS-SMART, ZS-TOUCH, ZS-PLUS PRO). The systems combine functionality and design through modular components with flexible installation options, featuring top-tier sound insulation (41-74 dB Dn,e,w) and heat recovery efficiency (up to 85%). Products serve diverse building types including apartment buildings, hotels, schools/kindergartens, commercial buildings, and single-family homes.

Differentiator

Problem solved

Functional benefit

Brands

• Ventosonic: Technology brand for ventilation systems featuring advanced filtration including pollen and dust filters
• AirStatic

Products and services

• AIR CONTROL Passive Airflow Supply System Passive outdoor air vent (Außenluftdurchlass) providing fresh air supply without fans, designed for seamless facade integration with high sound insulation. Part of the decentralized ventilation portfolio.
• WRG MAKANI Heat Recovery Ventilation Unit Decentralized ventilation unit with heat recovery (Wärmerückgewinnung) offering up to 62 m³/h air output, 85% heat recovery efficiency, and up to 69 dB Dn,e,w sound insulation. Suitable for residential applications.
• SEPHYR Single-Room Ventilation System Compact single-room ventilation system with air output above 250 m³/h, suitable for common rooms, offices, nurseries, and commercial units. Functions as either a centralized or decentralized solution for new builds and refurbishment.
• V-WRG RONDO PLUS Heat Recovery Ventilation Decentralized ventilation unit with heat recovery and integrated control unit, designed for various residential applications with seamless facade integration.
• Z-WRG RONDO PLUS Heat Recovery Ventilation Decentralized ventilation with heat recovery designed to operate with external control units such as ZS-SMART or ZS-TOUCH.
• dB Maxx II Decentralized Heat Recovery System Decentralized heat recovery ventilation system with up to 74 dB Dn,e,w sound insulation, designed for the highest sound insulation performance in heat recovery applications.
• BALNEO EX® Bath Ventilator Exhaust air fan for interior, windowless rooms, particularly wet rooms such as indoor bathrooms where it is legally required.
• SILENT COMFORT PLUS Active Ventilation Unit Active ventilation unit without heat recovery, designed for quiet operation in residential applications.
• ECO COMFORT PLUS Energy-Efficient Ventilation Energy-efficient ventilation unit with enhanced comfort features.
• ECO COMFORT IQ Intelligent Ventilation Intelligent ventilation unit with adaptive features for optimized comfort and energy efficiency.
• Supply and Exhaust Air Systems (Ab- und Zuluftsysteme) Supply and exhaust air systems forming part of the decentralized ventilation portfolio for controlled living space ventilation.
• ZS-TOUCH Control Unit

Quantifiable outcome

• Sound insulation values of 41-74 dB Dn,e,w certified by ift-Rosenheim
• +4 more outcomes

Named customers2 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Scale indicators7 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Zehnder Group: Swiss-headquartered leader in comfortable and healthy indoor climates, with a strong residential/commercial ventilation portfolio (decentralized and centralized heat-recovery units). Closest direct competitor to Ventomaxx in D-A-CH for residential heat-recovery and comfort ventilation.
• inVENTer: German specialist in decentralized ventilation systems with heat recovery, including the iV-series, closely mirroring Ventomaxx's WRG MAKANI and AIR CONTROL offerings for retrofit and new-build residential applications.
• Helios Ventilatoren: German manufacturer of fans, small and large ventilation units, and decentralized heat-recovery systems with broad residential and light-commercial coverage; competes in the same decentralized-ventilation niche with comparable product breadth.
• Maico: German ventilation specialist focused on fans, exhaust air systems, and decentralized ventilation units; an established German competitor to Ventomaxx's BALNEO EX wet-room and AIR CONTROL passive supply systems.
• Siegenia-Aubi: German provider of ventilation components, aerators, and window-integrated units, with overlapping product categories in passive supply air and decentralized ventilation for residential buildings.

Broad incumbents

• TROX: Large German-based global leader in room and process ventilation, including acoustic louvres, diffusers and grilles; broader portfolio than Ventomaxx but overlaps on air-distribution and sound-insulated ventilation components.
• Stiebel Eltron: Major German heating, hot water and ventilation OEM with a residential heat-recovery ventilation line; competes with Ventomaxx in residential new-build and refurbishment projects in D-A-CH.
• Vaillant: One of Germany's largest HVAC groups (heating, heat pumps, ventilation), offering centralized and decentralized residential ventilation with heat recovery as part of a broader climate solutions portfolio.
• Viessmann: Global German HVAC incumbent with a full heating/ventilation portfolio including residential ventilation with heat recovery, addressing overlapping end customers and projects in the D-A-CH region.
• Bosch Thermotechnology (Buderus/Junkers): Bosch's HVAC arm offering residential and light-commercial heating and ventilation solutions, including decentralized ventilation with heat recovery, competing for the same German installer and developer customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCpLwCSHSlc2boILk9xlvw_g
• Facebookfacebook.com/VentomaxxGmbH
• LinkedInde.linkedin.com/company/ventomaxx-gmbh
• Instagraminstagram.com/ventomaxx

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries1 record

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 Ventomaxx