Franz Lohr

What Franz Lohr does

Franz Lohr GmbH is a privately held German full-service infrastructure and building technology provider headquartered in Ravensburg, Baden-Württemberg, with a history dating to circa 1885 (140+ years). The company operates across eight integrated service divisions: Gebäudetechnik (heating, ventilation, sanitation, refrigeration/air conditioning, media supply, industrial pipeline construction), Anlagenbau (drinking water supply, wastewater treatment, clarification technology, prefabrication), Elektrotechnik | Automation | PV (electrical design, control cabinet construction, PLC programming, building management systems/leitsysteme, virtual commissioning, photovoltaics), Dach | Wand (industrial facade engineering, waterproofing, sheet metal processing), Rohrleitungsbau (gas, water, district heating, broadband/fiber), Tiefbau (civil engineering), Saugbagger (vacuum excavation rental), and Kundendienst (24/7 service, repairs, maintenance). Its technology stack includes DVGW GW 301 and FW 601 certified pipeline construction, TÜV SÜD pressure equipment inspections (CE 0036), WHG specialist company status, SPS/PLC automation, and building management systems, with proprietary integration of planning-to-maintenance workflows.

Franz Lohr generates revenue through three primary streams: one-time construction and infrastructure project work for municipalities, industrial enterprises, and private customers; recurring service and maintenance contracts under a 24/7 customer service model; and usage-based equipment rental (suction excavators). Pricing is project-specific and quote-based with no public pricing. The go-to-market is purely direct, enterprise field sales targeting cities and municipalities, industrial/commercial enterprises, and private individuals across the Ravensburg, Bodensee, Oberschwaben, and Allgäu regions in southern Germany, with no self-serve or PLG motion. The company distributes exclusively through its own field sales force and operates multiple offices including headquarters (Steinbeisstraße 10, Ravensburg), Werk 1/Werk 2 (Ravensburg), Singen (pipeline construction/civil engineering), Bad Schussenried (acquired April 2024 from Müller Elektrotechnik), and now Stuttgart/Pforzheim via the Lüllich acquisition (July 2025).

Following an active inorganic growth phase (Wangener Haustechnik became a 100% subsidiary in March 2025; Lüllich GmbH joined the group in July 2025; Müller Elektrotechnik integrated April 2024; strategic partnership with Elektro Schwägler January 2024; AZS Ausbildungszentrum joint venture with TWS Netz GmbH in 2021), Franz Lohr has evolved into a multi-entity group. Leadership comprises Managing Directors Nico Brombeis and Christian Alber (appointed October 15, 2025). The company remains family-influenced with no disclosed external PE/VC backing and is registered as HRB 550134 Amtsgericht Ulm.

Name

Franz Lohr

Legal name

Franz Lohr GmbH

Website

https://franz-lohr.de

Company type

Private

Founded year

1885

Operating status

Operating

Headcount range

11–50 employees

Short description

Franz Lohr GmbH is a Ravensburg-based (Germany) full-service infrastructure and building technology provider, founded circa 1885. It serves municipalities, industrial clients, and private customers across southern Germany with DVGW-certified solutions in building technology, pipeline construction, electrical engineering/automation, plant construction, and civil engineering.

Ownership category

akta.pro rank

Product category

Utility Infrastructure and Building Technology Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Services-Facilities Support Management Services (8744)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industries

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA), Chillers, Boilers & Central Plant Operations (BPABACAG), Water Resources, WASH & Integrated Water Management (BPADALAH)

Keywords

• Utility infrastructure services
• Building technology services
• Pipeline construction services
• Electrical engineering automation
• Civil engineering construction

Headquarters

HQ city

Ravensburg

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Infrastructure Project Services: Revenue from large-scale construction and infrastructure projects including building technology, plant engineering, pipeline construction, civil engineering, and roofing/wall systems for municipalities, industrial clients, and private customers.
2. Service and Maintenance Contracts: Ongoing revenue from 24/7 customer service, repairs, and maintenance services for installed systems
3. Equipment Rental: Rental of suction excavators and specialized equipment

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Franz Lohr GmbH is a certified full-service provider delivering integrated building technology, plant construction, pipeline infrastructure, civil engineering, electrical engineering/automation, and photovoltaic solutions for municipalities, industrial enterprises, and private customers in southern Germany. The offering spans heating, ventilation, sanitation, refrigeration, air conditioning, drinking water supply, wastewater treatment, district heating, gas and water pipeline construction, broadband/fiber infrastructure, industrial facade engineering, and ongoing customer service with 24/7 maintenance. Services cover the complete project lifecycle from planning and prefabrication through installation and ongoing service/maintenance contracts.

Product overview

Franz Lohr GmbH is a certified full-service provider offering comprehensive solutions in building technology, plant construction, electrical engineering and automation, roofing and facade systems, pipeline construction, civil engineering, vacuum excavation, and customer service. The company operates as a unified service portfolio rather than a modular software platform. The offering is organized into distinct service divisions: Gebäudetechnik handles heating, ventilation, sanitation, cooling and climate systems; Anlagenbau covers water treatment and prefabrication; Elektrotechnik | Automation | PV provides electrical design, control systems, PLC programming, and photovoltaics; Rohrleitungsbau and Tiefbau handle underground infrastructure; and Kundendienst provides ongoing maintenance and repair services. All divisions work together to deliver complete solutions from a single source.

Differentiator

Problem solved

Functional benefit

Products and services

• Gebäudetechnik (Building Technology) Comprehensive building technology services covering heating systems (Heizsysteme), ventilation (Lüftungstechnik), sanitation (Sanitärtechnik), refrigeration and air conditioning (Kälte- und Klimatechnik), media supply, and industrial pipeline construction — delivered to municipalities, industrial enterprises, and private customers.
• Anlagenbau (Plant Construction) Plant construction services including drinking water supply (Trinkwasserversorgung), wastewater treatment (Abwasserbehandlung), treatment technology (Klärtechnik), and prefabrication (Vorfertigung) — for industrial clients and municipal utilities.
• Elektrotechnik | Automation | PV Electrical engineering, automation, and photovoltaic services including electrical design (Elektrokonstruktion), control cabinet construction (Schaltschrankbau), assembly, SPS (PLC) programming, control systems (Leitsysteme), virtual commissioning, building technology, and solar energy installation.
• Dach | Wand (Roof and Wall) Roof and wall services including industrial facade engineering (Industrielle Fassadentechnik), roof and structural waterproofing (Dach- und Bauwerksabdichtungen), and plumbing/sheet metal processing (Klempnertechnik | Blechbearbeitung).
• Rohrleitungsbau (Pipeline Construction) Pipeline construction services covering gas lines (Gasleitungen), water lines (Wasserleitungen), district heating (Fernwärme), and broadband/fiber infrastructure (Breitband | Glasfaser) — delivered under DVGW certifications to municipalities and utilities.
• Tiefbau (Civil Engineering) Civil engineering and excavation services supporting infrastructure construction, roadworks, and underground utility installation projects.
• Saugbagger (Vacuum Excavation Services) Specialized vacuum excavation services using suction excavator technology for non-destructive digging projects, with equipment available for rental to construction contractors and utilities.
• Kundendienst (Customer Service and Maintenance) Customer service and maintenance covering all installed technical areas, including repairs (Reparaturen) and scheduled maintenance (Wartung), with 24/7 service availability for municipalities, industrial clients, and private customers under recurring service contracts.

Quantifiable outcome

• Complete project delivery from planning to maintenance
• +1 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core, major and minor.

• Lüllich GmbHcoreStrategic or Co-development Partner · 2 July 2025Lüllich GmbH became part of the Franz Lohr Group as of July 2025. Company founders Harald Lüllich and Michael Löffler continue to actively manage the company alongside Nico Brombeis. The partnership aims to leverage synergies and develop business at Stuttgart and Pforzheim locations.
• Wangener Haustechnik GmbH & Co. KGcoreStrategic or Co-development Partner · 28 March 2025Wangener Haustechnik became a 100% subsidiary of Franz Lohr GmbH as of March 2025. Originally a strategic partnership since 2022, Nico Brombeis now serves as sole managing director. Dieter Forstenhäusler led the company for 35 years before transitioning. The company specializes in building technology services.
• Manfred Schwägler Elektrosysteme GmbH & Co. KGmajorStrategic or Co-development Partner · 29 January 2024Strategic partnership between Franz Lohr and Elektro Schwägler to strengthen market position. Founded over 50 years ago, Elektro Schwägler is a leading provider for industrial electrical and building technology in the Lake Constance region, based in Owingen.
• AZS Ausbildungszentrum Schussental GmbHcoreStrategic or Co-development Partner · 1 September 2021Joint venture between Franz Lohr GmbH and TWS Netz GmbH founded in 2021. Operates a state-of-the-art training facility in Ravensburg for electro-technical trades and practical learning. Provides inter-company training opportunities for partner companies and beyond.
• TWS Netz GmbHcoreStrategic or Co-development Partner · 1 September 2021Joint venture partner with Franz Lohr in AZS Ausbildungszentrum Schussental GmbH. Regional utility network company focused on training and education in the Schussental region.
• 18° Grad BikestoreminorOthersSister company/bike shop operated from Werk 2 location in Ravensburg. Online ordering available, physical service at Schwanenstraße 50.
• Schübro Engineering (CloudViz)minorOthersConnected company under Franz Lohr Group umbrella.
• Auto SchüchlminorOthersPartner company listed on Franz Lohr website.
• Waldcamping BrombachseeminorOthersConnected company under Franz Lohr Group umbrella.
• Alpenhof BayrischzellminorOthersConnected company under Franz Lohr Group umbrella.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Dussmann Group: German facility management and technical building services group offering integrated MEP, energy, and infrastructure services to public and commercial clients. Comparable to Franz Lohr in integrated facility services orientation, with a much larger national footprint and broader service portfolio.
• Wisag Industrie Service GmbH & Co. KG: Large German facility services and technical building services group providing HVAC, electrical, plumbing, and energy management to industrial and commercial clients. Comparable to Franz Lohr's MEP service portfolio and public-sector/municipality customer mix, but at significantly larger national scale.
• ENGIE Deutschland GmbH: German arm of global energy and facility services major ENGIE, providing HVAC, energy infrastructure, building technology, and district heating services to municipalities and industrial clients. Highly comparable to Franz Lohr's integrated building-technology and infrastructure offering, but with far broader national and international reach.
• Gegenbauer Holding SE & Co. KG: Berlin-headquartered facility services and technical building management group serving commercial, public, and industrial clients across Germany. Comparable to Franz Lohr's building technology, maintenance, and 24/7 service positioning, but at substantially larger geographic and customer scale.
• VINCI Facilities Solutions Germany GmbH: German subsidiary of VINCI Energies providing technical facility management, MEP services, and energy infrastructure for public and commercial clients. Overlaps Franz Lohr's MEP trade-contracting and infrastructure positioning, with international parent backing and broader European footprint.
• Sodexo GmbH: Global facility services and integrated facilities management major with substantial German technical building services and energy management operations. Comparable to Franz Lohr's integrated building services offering to municipalities and industrial clients, but with global scale and broader service portfolio.

Direct peers

• Caverion Deutschland GmbH: Nordic-origin MEP/HVAC and building-technology specialist with significant German operations covering HVAC installation, building automation, energy efficiency, and 24/7 service. Closely matches Franz Lohr's technical building services and energy-infrastructure positioning.
• ROM Technik GmbH: German specialist in technical building services, plumbing, heating, ventilation, and electrical systems for public, commercial, and industrial clients. Closely aligned with Franz Lohr's integrated MEP trade-contracting business model.
• R+S Group (R+S Stolze GmbH): German electrical engineering and building technology specialist with strong regional presence in southern Germany. Comparable to Franz Lohr's Elektrotechnik | Automation | PV division and integrated building-services model for industrial and municipal clients.

Regional players

• Stinnes Bauunternehmen GmbH & Co. KG: Southern German civil engineering and infrastructure construction firm with overlap to Franz Lohr's Rohrleitungsbau (pipeline construction) and Tiefbau (civil engineering) divisions, particularly in water and gas pipeline work in the Baden-Württemberg/Bavaria region.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 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 Franz Lohr