TL Concept GmbH

What TL Concept GmbH does

TL Concept GmbH is a German technical building equipment (TGA) specialist headquartered in Klipphausen, Saxony, delivering four integrated service lines: technical insulation (Isolierung), preventive fire protection (Brandschutz), ventilation/air-conditioning/refrigeration (Lüftungstechnik), and sheet metal processing (Blechbearbeitung). Originating in 2007 as the German subsidiary of Swiss Novisol AG under Managing Partner Thomas Liebisch, the company consolidated its position by acquiring Novisol GmbH in 2018, opened an in-house prefabrication workshop for ventilation ducts on 01.01.2021, and expanded its footprint to seven locations — Klipphausen (HQ), Jena, Berlin, Frankenthal, Leuna, Hamburg, and Copenhagen (via TL Concept Nordic ApS, country manager Lasse Fröhlich).

The business operates a hybrid delivery model combining its own prefabrication workshop — enabling efficient, flexible production of ducts, molded parts and special components — with nationwide field installation executed by permanently employed fitters supplemented by freelancers and apprentices. Operations are supported by a 30,000 m² Klipphausen site including a 4,000 m² production hall completed in 2024 through wholly owned subsidiary TLC Gebäude- und Fertigungstechnik GmbH (founded 01.07.2023). Major projects target industrial facilities (chemical parks such as Leuna, semiconductor sites such as ESMC Dresden) and commercial properties, delivered under project-based contracts and framework agreements. Pre-qualification certificates (Präqualifizierung), ISO QS certification (year 2026), CrefoZert credit rating (held by only ~2% of German firms), and EcoZert underwrite eligibility for large industrial and public-sector tenders.

Revenue is generated almost entirely through professional services (insulation, fire protection, HVAC/R installation and maintenance) supplemented by hardware sales from in-house sheet metal and duct fabrication. Pricing is not publicly disclosed and operates on a project/framework basis. Customer concentration risk is unquantified in disclosed data, but exposure spans commercial facilities (primary), industrial facilities (primary, including semiconductor and chemicals), and private properties (secondary), with education and talent pipeline development (IHK Dresden-awarded apprenticeship program, dual-study partnership with Duale Hochschule Sachsen) operating as a strategic ancillary that reinforces both capacity and brand.

Name

TL Concept GmbH

Legal name

TL Concept GmbH

Website

https://tlconcept.eu

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Technical Building Equipment Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Plumbing, Heating, and Air-Conditioning Contractors (238220), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Steam & Air-Conditioning Supply (4961), Refrigeration & Service Industry Machinery (3580), Sheet Metal Work (3444)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industries

HVAC Installation, Service & Repair (IMAIABAA), Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA), Commercial HVAC Maintenance Agreements & PM Programs (HSAOAHAJ)

Keywords

• Technical insulation services
• Fire protection systems
• Ventilation duct manufacturing
• Sheet metal fabrication
• HVAC installation services

Headquarters

HQ city

Klipphausen

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Technical Insulation Services: Installation and maintenance of technical insulation for commercial, industrial, and private facilities. Revenue is generated through project-based contracts and framework agreements.
2. Ventilation, Air Conditioning, and Refrigeration Systems: Planning, installation, and maintenance of HVAC/R systems for all sizes of facilities. Project-based service revenue.
3. Fire Protection Systems: Processing of preventive fire protection systems, including confectioning and installation of fire protection panel cut-to-size pieces. Project-based revenue.
4. Sheet Metal Processing and Prefabrication: Manufacturing of ventilation ducts and sheet metal parts for pipelines, containers, and molded parts. Prefabrication workshop enables efficient in-house production supporting field operations.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

TL Concept GmbH provides technical building equipment services across four integrated disciplines: technical insulation (Isolierung), preventive fire protection (Brandschutz), ventilation, air conditioning and refrigeration systems (Lüftungstechnik), and sheet metal processing (Blechbearbeitung). The company plans, installs, and maintains these systems for commercial, industrial, and private facilities through project-based contracts and framework agreements, with an in-house prefabrication workshop producing ventilation ducts, molded parts, and special sheet metal components.

Product overview

TL Concept GmbH operates as a technical building equipment company offering four integrated service areas: Insulation (Isolierung), Fire Protection (Brandschutz), Ventilation Technology (Lüftungstechnik), and Sheet Metal Processing (Blechbearbeitung). The company provides comprehensive solutions from planning to installation and maintenance of building systems. A key addition is the Prefabrication Workshop for ventilation ducts, launched in January 2021, which enables efficient in-house production of ventilation components. The subsidiary TLC Gebäude- und Fertigungstechnik GmbH, established in July 2023, expands capabilities into building and production technology.

Differentiator

Problem solved

Functional benefit

Products and services

• Isolierung (Insulation) Technical insulation services for all components of technical building equipment, including isolation, sheathing and sheet metal cladding. Served to commercial, industrial, and private facility clients through project-based contracts.
• Brandschutz (Fire Protection) Processing of all common preventive fire protection systems, including cutting and installation of fire protection panels cut to size. Provided to industrial and commercial facilities for regulatory compliance.
• Lüftungstechnik (Ventilation Technology) Planning, installation and maintenance of ventilation, air conditioning and refrigeration systems of all sizes for commercial, industrial, and private facilities.
• Blechbearbeitung (Sheet Metal Processing) Manufacturing of ventilation ducts and sheet metal parts for pipelines, containers, and various formed parts, supporting field installation and infrastructure projects.
• Prefabrication Workshop for Ventilation Ducts In-house prefabrication service producing ventilation ducts, molded parts, and special sheet metal components with modern machinery, enabling efficient and flexible field delivery for ventilation construction projects.

Quantifiable outcome

• Franz Günzel achieved 97 points (best in Saxony and Germany) in IHK examinations for industrial insulator in 2024; 3rd place at European Technical Insulation Championship 2025 in Copenhagen.

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered core.

• Novisol AG (Switzerland)coreStrategic or Co-development Partner · 1 January 2007TL Concept GmbH was founded in 2007 as a subsidiary of Novisol AG in Switzerland, launching business activities in Germany under the management of Thomas Liebisch. In 2018, Thomas Liebisch took over Novisol GmbH, strengthening the company's position as market leader.
• Duale Hochschule Sachsen (DHSN)coreStrategic or Co-development PartnerPartnership with Duale Hochschule Sachsen for dual study programs. Students complete practical phases at TL Concept while studying at DHSN locations in Glauchau (Baubetriebsmanagement) and Riesa (Energie- und Gebäudetechnik).
• TLC Gebäude- und Fertigungstechnik GmbHcoreStrategic or Co-development PartnerRelated entity founded in July 2023 under joint management of Thomas Liebisch and David Brockmann, offering solutions in building and production technology. A new 4,000 m² production hall on a 30,000 m² site inaugurated in 2024.

Scale indicators4 records

Recent moves17 records

Expansion highlights5 records

Direct peers

• R+S solutions GmbH: German technical building-services contractor offering HVAC, ventilation and building-equipment services across commercial and industrial real estate. Comparable end markets and project-based service model.
• ROM Technik GmbH & Co. KG: German HVAC/R and refrigeration contracting firm serving industrial and commercial customers. Direct overlap with TL Concept's ventilation, air-conditioning and refrigeration installation business.
• Gegenbauer Holding GmbH & Co. KG: Berlin-based building services and technical facility-management group. Comparable service breadth (MEP/HVAC/building services) for industrial and commercial properties in Germany.
• Caverion Deutschland GmbH: German arm of Nordic building-technology firm; delivers HVAC/R, ventilation and technical building services for industrial and commercial clients. Comparable end markets and service model to TL Concept.
• Kaefer Isoliertechnik GmbH & Co. KG: Hamburg-headquartered industrial insulation and technical building services group with strong German presence. Most directly comparable peer: similar industrial insulation focus, comparable service portfolio across insulation, fire protection and HVAC-adjacent work.
• G+H Isolierung GmbH (Bilfinger): German technical insulation specialist owned by Bilfinger; offers insulation, fire protection and related building-equipment services. Closest competitor profile to TL Concept's insulation and fire-protection core.

Broad incumbents

• ENGIE Deutschland GmbH: German subsidiary of global energy and building-services group ENGIE; delivers HVAC, technical facility management and energy-efficiency services to industrial and commercial clients. Adjacent competitor with broader scope.
• SPIE GmbH: Large German multi-technical building-services provider covering HVAC, electrical, and energy infrastructure. Overlaps with TL Concept's HVAC and industrial-site work as part of a much wider portfolio.
• Bilfinger SE: German industrial-services group active in insulation, maintenance and process-plant services. Competes with TL Concept for industrial megaproject insulation and fire-protection contracts via subsidiaries such as G+H.

Regional players

• Stulz Hamburg GmbH: Hamburg-based HVAC and air-conditioning manufacturer and service provider; operates in the same German DACH market with focus on climate-control and ventilation systems. Comparable product/category with stronger manufacturer tilt.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tl-concept-gmbh

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 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 TL Concept GmbH