What Atec does

ATEC GmbH & Co. KG is a German manufacturer of building energy flow systems, headquartered in Neu Wulmstorf with 10,000 m² of production and warehouse capacity and 50+ employees. Founded in 1999 as a specialist in exhaust gas technology, the company has over 25 years of building authority approval and has expanded into heat pumps, PVT (photovoltaic-thermal) modules, flexible storage systems ranging from 5 to 1,200 kWh, radiators, and sound insulation, positioning itself as a holistic single-source provider for heat, electricity, and control subsystems in buildings. CE certification across all exhaust systems was added in 2010.

The company's core technology is the Hsen®Boxx, a central energy management control unit co-developed with partner Hosenso that connects existing and new energy equipment into one automated control point, capturing all energy sources and analyzing consumption data to make efficiency decisions. The product portfolio is designed as modular and technology-open, with the WhitePoly and IronPoly external wall exhaust systems and PolyCase LA 30/LA 90 fire protection shaft systems forming the legacy hardware base. ATEC holds a registered trademark on the Hsen®Boxx brand and integrates with technology partners including Abora Solar, Adaptive Balancing Power, Kuehner Waermetauscher, and NAEXT, alongside industry associations such as Bundesverband Wärmepumpe and VKA.

ATEC operates a B2B go-to-market organized around three primary segments: Fachhandel (professional trade wholesale), OEM Partners (with a dedicated OEM/Export sales team), and Fachhandwerk (professional installers and craftsmen). Revenue is generated through hardware sales of components, supported by regional sales managers organized by German postal code zones, a digital planning form system for exhaust projects, and the ATEC-Live Service for real-time product availability. Distribution covers Germany directly and broader Europe through high stock availability from the Neu Wulmstorf warehouse, with specific export coverage mapped to markets such as Italy.

Name

Atec

Legal name

ATEC GmbH & Co. KG

Website

https://atec-abgas.de

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

ATEC GmbH & Co. KG is a German manufacturer of holistic energy flow systems for buildings, including exhaust systems, heat pumps, PVT modules, and storage solutions, serving trade wholesale, OEM partners, and professional installers across Europe.

Ownership category

akta.pro rank

Product category

Building Energy Systems / HVAC Equipment Manufacturing

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), 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 Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

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

akta.pro secondary industries

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG), Controls, Thermostats, Sensors & Building Automation (HVAC Controls) (IMADANAH), Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

Keywords

• Exhaust systems
• Heat pumps
• Energy storage systems
• PVT modules
• Building energy management

Headquarters

HQ city

Neu Wulmstorf

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Products: Sale of physical energy systems components including exhaust systems, heat pumps, PVT modules, storage systems, radiators, sound insulation, and smart control units. Revenue generated through direct B2B sales to trade wholesale, OEMs, and professional trades.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

ATEC GmbH & Co. KG manufactures and supplies a holistic system portfolio for energy flow in buildings, encompassing exhaust gas systems (stainless steel WhitePoly and IronPoly external-wall lines and PolyCase LA fire-protection shaft systems), heat pumps, PVT modules, modular storage systems (5–1,200 kWh), heating radiators, and sound insulation. The portfolio is unified by the Hsen®Boxx, a central smart control unit that networks generation, storage, and exhaust technologies into an integrated, modular, technology-open energy ecosystem for trade wholesale, OEM, and installer partners.

Product overview

ATEC GmbH & Co. KG is a holistic system provider for energy flow in buildings, encompassing heat, electricity, and control systems. The product portfolio centers on the Hsen®Boxx (developed jointly with Hosenso) as the central energy management and automation control unit, which networks all components together. The product range includes: (1) Exhaust Systems — WhitePoly and IronPoly external wall-mounted systems plus PolyCase LA 30/90 fire protection shaft systems; (2) Energy Generation — PVT modules and heat pumps; (3) Energy Storage — flexible storage systems from 5 to 1,200 kWh; and (4) Accessories — sound insulation and heating radiators. All products are designed to work together in a modular, technology-open system.

Differentiator

Problem solved

Functional benefit

Products and services

• Hsen®Boxx Central energy management control unit (co-developed with Hosenso) that connects existing and new energy systems — generation, storage, and exhaust — into a single, intuitive control point. Captures all energy sources, analyzes consumption data, and makes automatic decisions for maximum efficiency and comfort. Targeted at trade wholesale, OEM, and installer partners integrating complete building energy systems.
• WhitePoly exhaust system External wall-mounted exhaust gas system for condensing boilers, oil/gas systems, and micro-CHP units with flue gas temperatures ≤120°C. Available with surface options including copper-plated, brushed stainless steel, and RAL colors. Designed for trade wholesale and Fachhandwerk installation in residential and commercial buildings.
• IronPoly exhaust system Enhanced external wall-mounted exhaust gas system with increased durability for condensing boilers, oil/gas systems, and micro-CHP units with flue gas temperatures ≤120°C. Available with surface options including copper-plated, brushed stainless steel, and RAL colors, targeting trade wholesale and Fachhandwerk installation markets.
• PolyCase LA 30 fire protection shaft system
• PolyCase LA 90 fire protection shaft system Fire protection shaft system for multi-family buildings, housing exhaust gas lines with fire resistance rating LA 90. Combines room-air-independent and room-air-dependent gas and oil condensing units (exhaust temperatures ≤120°C) and CHP units (exhaust temperatures ≤100°C).
• PVT modules Photovoltaic-thermal hybrid modules that generate both electricity and heat simultaneously for efficient energy production. Integrated into ATEC's modular, technology-open energy flow system for trade wholesale and installer customers in the heating and energy sector.
• Wärmepumpen (Heat Pumps) Heat pump systems for efficient building heating, part of the modular and technology-open energy system portfolio sold via trade wholesale and to Fachhandwerk installers.
• Speichersysteme (Storage Systems) Flexible storage systems ranging from 5 to 1,200 kWh for intelligently buffering excess electricity or heat energy, increasing building autonomy and reducing grid load. Offered as a scalable product line within ATEC's energy flow system portfolio.
• Schallschutz (Sound Insulation) Sound insulation products for reducing noise from heating systems and energy installations, provided as accessories supporting ATEC's heat pump and exhaust system installations.
• Heizkörper (Heating Radiators) Heating radiators offered as part of ATEC's comprehensive building energy system portfolio for trade wholesale and Fachhandwerk customers.

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• HosensocoreStrategic or Co-development PartnerJoint development partnership creating the Hsen®Boxx - a central control unit that connects all energy systems into a unified ecosystem. This strategic collaboration combines ATEC's exhaust and energy flow expertise with Hosenso's smart control technology.
• Bundesverband Wärmepumpe (bwp)minorOthersGerman heat pump industry association membership, supporting ATEC's heat pump integration solutions.
• EnBWminorOthersEnergy supplier partnership for grid integration and energy distribution.
• HansewaermeminorStrategic or Co-development PartnerRegional district heating partner in the Hanseatic warm network.
• VKA (Verband Kunststoff-Abgasanlagen)minorOthersGerman association for plastic exhaust systems, representing industry standards and interests.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Daikin Europe: Global HVAC leader with a strong European heat-pump and integrated climate solutions portfolio. Competes with ATEC in heat pumps, controls, and integrated energy systems, with much larger R&D and channel resources.
• Wolf GmbH (MainConcept/Ariston parent): European HVAC manufacturer offering heating, ventilation, and heat pump systems. Overlaps with ATEC in the integrated heat-pump + system solution space and competes for the same Fachgroßhandel and OEM customers in Germany.
• Bosch Thermotechnik: Broad HVAC/heating incumbent (Buderus, Junkers brands) offering heat pumps, boilers, and increasingly integrated energy and storage systems. Overlaps with ATEC across heat pumps, exhaust-adjacent heating systems, and the German Fachgroßhandel/Fachhandwerk channel.
• Vaillant Group: European HVAC incumbent (Vaillant, Saunier Duval) with strong heat pump and integrated heating portfolios. Competes with ATEC in the same heat-pump plus accessories market and shares the same trade wholesale and installer distribution model across DACH.
• Viessmann Climate Solutions: Major German HVAC incumbent offering heat pumps, heating systems, and integrated energy solutions. Comparable to ATEC in the heat-pump, storage, and integrated-energy categories, but at significantly larger scale and with own-brand system control competing against the Hsen®Boxx.
• Stiebel Eltron: German heat-pump and hot-water specialist with a strong Fachhandwerk channel presence. Directly comparable to ATEC in heat pumps and domestic energy systems, and a likely buyer/customer of complementary exhaust and integration components.

Emerging players

• Hosenso GmbH: Co-developer of the Hsen®Boxx control unit and strategic partner. Comparable technology overlap (smart energy/building control) and a potential emerging competitor if Hosenso expands into the same integrated-hardware-plus-software space that ATEC currently addresses.

Direct peers

• Jeremias GmbH: German manufacturer of stainless steel exhaust/chimney systems and modular flue gas solutions. Closely comparable to ATEC's heritage product line of WhitePoly/IronPoly exhaust systems and PolyCase fire-protection shafts, serving the same Fachgroßhandel, OEM, and Fachhandwerk channels in DACH.
• Schiedel GmbH (Kingspan Group): European leader in chimney and exhaust gas systems, now part of Kingspan. Direct overlap with ATEC's stainless steel exhaust and fire-protection shaft portfolio, with broader geographic reach and scale advantages in the same regulatory and installer ecosystem.

Others

• Kuehner Wärmetauscher: German heat-exchanger manufacturer and ATEC integration partner. Adjacent supplier in the same energy-flow value chain whose components feed ATEC's broader HVAC/storage offering.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Atec