Ground-Therm Sp. z o. o.

What Ground-Therm Sp. z o. o. does

Ground-Therm Sp. z o. o. is a privately held Polish limited liability company (Sp. z o. o.) founded in 2010 and headquartered in Piekary Śląskie, Poland, operating with a small internal team of seven employees. Under the Ventiflex brand, the company manufactures modular ventilation and heat recovery (recuperation) systems for residential and commercial buildings, including a 12-component Modular Shape System (ductwork), a line of heat recovery ventilators (REVERSUS, FLAT, BREVA, BREVA TOP MINI, Breva Top, and the decentralized Direct AV60), and a Ground Heat Exchanger for pre-conditioning intake air using earth thermal mass. The technology is centered on energy-efficient heat recovery, quiet operation, and customizable fitment to diverse building configurations.

The company's commercial model is project-based and channel-driven. Pricing is not publicly disclosed and is set per project based on building requirements, system size, and installation complexity. Revenue is generated through three layers of distribution: a network of authorized distributors across Poland, a dedicated B2B portal for professional installers and trade partners, and direct installation partners who deliver end-customer projects. The company supports the channel with marketing infrastructure including a corporate website, a knowledge base, a VentiCalc online system-selection tool, and a download center. Primary customer segments are single-family homes (Domy jednorodzinne), described as a primary segment, and commercial buildings and multi-unit residential complexes as secondary segments. The company does not disclose revenue, has no subsidiaries, and is not publicly listed.

No external investors, parent entities, M&A activity, or funding rounds are referenced. Operating geographies are stated as Poland within Central Europe. The company has documented over 30,000 buildings equipped with its ventilation solutions across residential and commercial categories, a cumulative figure since founding that underpins brand trust but does not directly indicate current run-rate revenue.

Name

Ground-Therm Sp. z o. o.

Legal name

Ground-Therm Sp. z o. o.

Website

https://ground-therm.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Polish manufacturer of modular ventilation and heat recovery systems sold under the Ventiflex brand, serving residential and commercial building projects in Poland through a distributor, B2B portal, and direct installer partner network.

Ownership category

akta.pro rank

Product category

Ventilation and Heat Recovery Equipment

NAICS

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

akta.pro primary industry

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)

akta.pro secondary industries

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

Keywords

• Heat recovery ventilation
• Modular duct systems
• Ground heat exchangers
• Energy efficient ventilation
• Recuperator units

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Distribution channels3 records

Marketing channels5 records

Core offering

Ground-Therm Sp. z o. o. manufactures and supplies the Ventiflex® modular ventilation and heat recovery product line for residential and commercial buildings in Poland. Its portfolio includes the Modułowy System Kształtek (12-component modular ductwork), a range of recuperators (REVERSUS, FLAT, BREVA, BREVA TOP MINI, Breva Top, DECENTRALNY DIRECT AV60) that recover heat from exhaust air, and a Gruntowy Wymiennik Ciepła (Ground Heat Exchanger) that pre-heats or pre-cools intake air using geothermal energy.

Product overview

Ground-Therm Sp. z o. o. is a Polish manufacturer of innovative ventilation and heat recovery systems, operating under the Ventiflex brand. The product portfolio consists of three main categories: (1) a Modułowy System Kształtek (Modular Shape System) with 12 components including Ventiflex PLUS, Ventiflex GT, Ventiflex Kanał Elastyczny VTX, Ventiflex VT-130, and supplementary elements; (2) a line of Rekuperatory (heat recovery ventilators) including REVERSUS, FLAT, BREVA TOP MINI, BREVA, Breva Top, and DECENTRALNY DIRECT AV60; and (3) a Gruntowy Wymiennik Ciepła (Ground Heat Exchanger). The systems are designed for complete home heat recovery and have been installed in over 30,000 buildings.

Differentiator

Problem solved

Functional benefit

Brands

• Ventiflex: Primary brand for modular ventilation system components and recuperators, including Ventiflex PLUS, Ventiflex GT, Ventiflex Kanał Elastyczny VTX, and Ventiflex VT-130.
• Ventiflex Reku Premium

Products and services

• Ventiflex® Modułowy System Kształtek (Modular Shape System) A modular ductwork system comprising 12 carefully designed components (including Ventiflex® PLUS, Ventiflex® GT, Ventiflex Kanał Elastyczny VTX, Ventiflex VT-130, and supplementary elements) that allows installation customization for any building type. Designed for installers of residential and commercial ventilation systems.
• Ventiflex Reku Premium Recuperators (REVERSUS, FLAT, BREVA, BREVA TOP MINI, Breva Top) A product line of centralized heat recovery ventilators (recuperatory) — REVERSUS, FLAT, BREVA, BREVA TOP MINI, and Breva Top — that recover thermal energy from exhaust air to precondition incoming fresh air, reducing heating and cooling energy costs in residential buildings.
• DECENTRALNY DIRECT AV60 (Decentralized Heat Recovery Ventilator) A decentralized heat recovery ventilator (rekuperator decentralny) for residential ventilation applications, providing localized heat recovery where centralized ductwork is impractical.
• Gruntowy Wymiennik Ciepła (Ground Heat Exchanger) A ground-based heat exchange system that utilizes geothermal energy (earth thermal mass) to pre-heat intake air in winter or pre-cool it in summer, improving overall energy efficiency of the ventilation installation in residential and commercial buildings.

Quantifiable outcome

• Over 30,000 buildings equipped with ventilation solutions

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators2 records

Recent moves4 records

Expansion highlights4 records

Emerging players

• Vents: Ukrainian ventilation equipment manufacturer producing fans, ductwork, and heat recovery units at competitive price points. Comparable to Ground-Therm in residential/light-commercial ventilation, with growing presence in Central and Eastern European markets.

Direct peers

• Salda: Lithuanian ventilation equipment manufacturer producing air handling units, heat recovery ventilators, and ductwork. Direct competitor in the Central/Eastern European market with overlapping product categories (HRV, ducting) and similar SME-to-mid-market positioning.
• Zehnder Group: Swiss manufacturer specializing in indoor climate solutions including heat recovery ventilation and ducted ventilation systems. Closely comparable to Ground-Therm's HRV and duct product focus, serving residential and commercial buildings across Europe.
• Vent-Axia: UK-based ventilation manufacturer offering heat recovery systems, ducting, and indoor air quality solutions. Direct overlap with Ground-Therm's HRV and ductwork product lines for residential and commercial applications.
• Flexit: Norwegian manufacturer of heat recovery ventilation units and indoor climate systems for residential buildings. Closely comparable to Ground-Therm's HRV-centric product strategy and single-family home focus.
• Blauberg: European manufacturer of ventilation equipment including heat recovery units, duct fans, and air distribution components. Direct overlap with Ground-Therm's recuperator and ductwork offerings, with similar presence in residential and light-commercial segments.

Broad incumbents

• Systemair: Swedish-listed HVAC equipment manufacturer with a broad portfolio of fans, air handling units, and heat recovery ventilators. Direct overlap with Ground-Therm's HRV/recuperator and ductwork categories, but at significantly larger scale and geographic reach across Europe.
• Swegon: Swedish indoor climate company producing air handling units, HRV systems, and duct accessories. Comparable product categories to Ground-Therm, primarily serving commercial and institutional buildings across Europe.
• Dantherm: Danish climate solutions provider producing ventilation, heating, and dehumidification equipment for residential and commercial buildings. Comparable to Ground-Therm in HRV and air-handling categories, with broader product breadth.
• Aldes: French indoor air quality and ventilation specialist producing HRV/ERV systems, ductwork, and air handling units. Broad overlap with Ground-Therm's portfolio across residential and commercial ventilation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/groundthermpl

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Ground-Therm Sp. z o. o.