Ploier + Hörmann Bau GmbH

What Ploier + Hörmann Bau GmbH does

Ploier + Hörmann Bau GmbH is an Austrian private limited company (GmbH) headquartered in Traun, Upper Austria, specializing in construction services for utility network infrastructure. The company operates six core service lines: Elektrotechnik (electrical engineering), Energie-Infrastruktur (energy infrastructure), Telekom-Infrastruktur (telecom infrastructure), Telekomtechnik (telecom technology), Projektierung und Vermessung (project planning and surveying), and Tiefbau (civil engineering). It also operates a niche online marketplace for used construction machinery (Gebrauchtmaschinen). Founded around 1969, the company employs approximately 250 people and reports €52 million in annual construction output.

The company operates as a specialized subsidiary within the family-controlled Leyrer + Graf Unternehmensgruppe, a Top 10 Austrian construction group founded in 1926 with approximately 2,750 employees and ~€630 million in annual construction output across related entities (Leyrer + Graf Baugesellschaft, Graf-Holztechnik, Graf Development, Netz + Plan). Ploier + Hörmann functions as the group's utility-infrastructure and electrical-engineering operating entity. Leadership is split across division heads: Manuel Dietinger (Standortleiter Energie + Telekom), Michael Konrad (Gruppenleiter Energie), Klaus Schremmer (Gruppenleiter Telekom), and Klaus Kleesadl (Gruppenleiter Elektrotechnik), with parent CEO Stefan Graf as co-owner.

The business model is project-based: revenue is generated through one-time construction contracts awarded via public tendering and direct B2B engagement, targeting energy and telecom utilities, municipalities, and public-sector clients across Austria. Pricing is project-quoted and not publicly disclosed. The company pursues ESG differentiation, being the first Austrian construction firm to receive ÖGNI "Nachhaltige Baustelle" certification (2025) and a member of the Science Based Targets initiative (SBTi), positioning it favorably for sustainability-scored public procurement.

Name

Ploier + Hörmann Bau GmbH

Legal name

Ploier + Hörmann Bau GmbH

Website

https://p-h.at

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

11–50 employees

Short description

Ploier + Hörmann Bau GmbH is an Austrian utility-network construction firm (~250 employees, €52M annual output) specializing in energy, telecom, and electrical infrastructure projects via public tendering, operating as a subsidiary of the Leyrer + Graf group.

Ownership category

akta.pro rank

Product category

Infrastructure Construction Services

NAICS

Power and Communication Line and Related Structures Construction (237130), Utility System Construction (2371)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks) (EUAEADAG)

akta.pro secondary industries

Transmission Interconnection & Line Works (Gen-Tie Lines, Overhead/Underground Lines) (EUAMAFAF), SCADA, Controls & Communications Integration (RTU, Fiber, Networking) (EUAEADAD), Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

Keywords

• Infrastructure construction services
• Utility network construction
• Energy infrastructure building
• Telecom infrastructure construction
• Civil engineering services

Headquarters

HQ city

Traun

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Construction Project Contracts: Revenue generated through construction project contracts - one-time payments for completed infrastructure projects, typically awarded through public tendering

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Ploier + Hörmann Bau GmbH is an Austrian construction company that builds and maintains supply networks for energy, telecommunications, and public infrastructure. Its portfolio spans electrical engineering, energy and telecom infrastructure construction, telecom technology installation, project planning and surveying, and civil/underground engineering (Tiefbau). The company operates as a specialized operating entity within the family-owned Leyrer + Graf corporate group.

Product overview

Ploier + Hörmann Bau GmbH is a construction services company (Bauunternehmen) providing comprehensive infrastructure construction services. The company operates as part of the LEYRER + GRAF corporate group and offers a portfolio of core services including Elektrotechnik (electrical engineering), Energie-Infrastruktur (energy infrastructure), Telekom-Infrastruktur (telecom infrastructure), Telekomtechnik (telecom technology), Projektierung und Vermessung (project planning and surveying), and Tiefbau (civil engineering). Additionally, the company operates a Gebrauchtmaschinen (used machinery marketplace) for construction equipment, and offers specific products like Betonförderleitungen (concrete conveyor pipe systems). The company has 250 employees, generates €52 million in annual construction performance, and has 56 years of experience in the industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Energie-Infrastruktur (Energy Infrastructure)

Quantifiable outcome

• First Austrian construction company to receive ÖGNI certificate for 'Sustainable Construction Site'
• +1 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Leyrer + Graf Baugesellschaft m.b.H.coreStrategic or Co-development PartnerPloier + Hörmann is a member of the Leyrer + Graf corporate group, one of Austria's leading construction companies with 100 years of history and approximately 2,750 employees. The group includes related companies: Graf-Holztechnik, Graf Development, and Netz + Plan.

Scale indicators6 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• PORR AG: One of Austria's largest listed construction companies with full-service infrastructure, building, and environmental engineering capabilities. Competes for the same public tenders but at significantly larger scale and broader portfolio.
• Strabag SE: European construction major headquartered in Austria, with leading market positions in transportation infrastructure, civil engineering, and energy-related construction. Overlaps in utility network and telecom construction at much larger scale.

Direct peers

• Leyrer + Graf Baugesellschaft m.b.H. Parent company and direct Austrian construction peer operating in infrastructure, civil engineering, and energy projects. Shares the same corporate group, overlapping service portfolio, and overlapping client base across Upper Austria.
• Swietelsky AG: Austrian-based construction company with strong infrastructure, civil engineering, and tunneling capabilities across the DACH region. Directly comparable as a mid-to-large Austrian general contractor competing for similar public utility and infrastructure tenders.
• Granit Group: Austrian construction group active in civil engineering, road construction, and pipeline/utility works. Direct comparable in scale, regional footprint, and public-tender-driven utility infrastructure delivery.
• Gugler Bau GmbH: Austrian mid-market construction company with civil engineering, building, and infrastructure capabilities. Comparable regional scale and service breadth within the Austrian infrastructure construction market.
• Habau Group: Austrian family-owned construction group active in pipeline, civil engineering, and energy infrastructure. Comparable scale and ownership profile to Ploier + Hörmann, with similar public-tender-driven business model.

Emerging players

• Kapsch Group: Austrian technology group with telecom infrastructure and network rollout capabilities. Comparable in serving telecom operator clients for network deployment, though more focused on systems/integration than physical construction.
• Spie SAG Austria / SPIE Group: European multi-technical services group with energy infrastructure and telecom network services across Austria and DACH. Adjacent competitor in electrical engineering and telecom infrastructure deployment services.

Others

• Energie AG Oberösterreich: Upper Austrian regional utility and infrastructure operator — a key potential customer category for Ploier + Hörmann's energy-infrastructure construction services rather than a direct competitor, included as a representative downstream client.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/leyrergraf
• YouTubeyoutube.com/channel/UC3wHJeC6_3NEv11oQSt0Qcg
• Facebookfacebook.com/leyrergraf
• LinkedInlinkedin.com/company/ploier-h%C3%B6rmann-bau-gmbh
• Instagraminstagram.com/leyrergraf

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Ploier + Hörmann Bau GmbH