Stump Franki Sp Z O O

What Stump Franki Sp Z O O does

Stump Franki sp. z o.o. is a Polish geotechnical engineering contractor headquartered in Warsaw at ul. Hołubcowa 123, specialized in deep foundation and earth-retention works for the construction and infrastructure sectors. The company operates as a wholly-owned subsidiary of PORR Bau GmbH, itself part of the Vienna-headquartered PORR Group whose construction heritage dates to 1869 and which operates across Austria, Germany, Slovakia, Czech Republic, Poland, Switzerland, and Romania.

The company's core offering is an integrated design-build geotechnical service: an in-house design office collaborates with clients from the early project phase, after which Stump Franki executes using its owned specialized equipment across 14 documented technologies — diaphragm/slurry walls, barrettes, vertical cut-off walls, sheet pile walls, drilled piles, Franki piles, Atlas (CFA) piles, Deep Soil Mixing (DSM), Berlin wall excavation support, micropiles, ground anchors, soil nailing, pressure injections, and casings. These span load-bearing foundations and ground-improvement/water-control systems used in metro stations, tunnels, deep basements, bridges, and high-rise structures.

Stump Franki monetizes through project-based construction contracts negotiated directly by Regional Directors across three Polish territories (Central/Warsaw, South/Kraków-Wrocław-Rzeszów, North/Gdańsk-Szczecin), supported by technology-specific representatives. Pricing is bespoke per project (scope, ground conditions, technical specification) and not publicly disclosed. Customers are primarily Polish construction firms and general contractors, infrastructure developers (public and private), and commercial/residential real estate developers — with no consumer-facing sales motion. The company is also a member of the Polish Association of Special Foundation Contractors (PZWFS), which functions as a sectoral credibility and networking channel.

Name

Stump Franki Sp Z O O

Legal name

Stump Franki sp. z o.o.

Website

https://stumpfranki.pl

Company type

Private

Founded year

1991

Operating status

Operating

Short description

Stump Franki sp. z o.o. is a Polish geotechnical contractor specializing in deep foundation design and execution for construction firms, infrastructure developers, and real estate developers. Operating as a PORR Group subsidiary with six regional offices across Poland, it delivers integrated foundation solutions including diaphragm walls, piles, ground anchors, and soil improvement.

Ownership category

akta.pro rank

Product category

Geotechnical Construction Services

NAICS

Foundation, Structure, and Building Exterior Contractors (2381), Poured Concrete Foundation and Structure Contractors (23811), Other Heavy and Civil Engineering Construction (237990)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Piling & Deep Foundations (Driven, Bored, CFA, Micropiles) (IMAFAOAA)

akta.pro secondary industries

Earth Retention & Excavation Support (Sheet/Soldier Piles, Diaphragm Walls, Bracing) (IMAFAOAD), Foundation Remediation & Underpinning (Jack Piles, Resin Injection, Re-leveling) (IMAFAOAL), Foundations & Geotechnical Works (Piles, Anchors, Ground Improvement) (EUAMAFAB)

Keywords

• Deep foundation construction
• Geotechnical engineering services
• Specialized foundation systems
• Earth retention solutions
• Soil improvement techniques

Headquarters

HQ city

Warszawa

HQ country

Poland

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Construction Services: Project-based construction services for deep foundations and specialized geotechnical works. Revenue is generated through direct contracts with construction clients for foundation installation, soil improvement, and excavation support systems. Services are tailored to specific project requirements with custom engineering solutions.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Stump Franki sp. z o.o. is a Polish geotechnical contractor that executes deep foundation and earth retention works for construction and infrastructure projects, including diaphragm walls, barrettes, drilled piles, Franki piles, Atlas piles, sheet pile walls, micropiles, ground anchors, soil nailing, deep soil mixing (DSM), vertical cut-off walls, pressure injections, and Berlin wall systems. The company operates an in-house design office and provides integrated engineering design and construction execution services to construction companies, infrastructure developers, and general contractors across Poland.

Product overview

Stump Franki Sp. z o.o. is a specialized geotechnical contractor offering a comprehensive portfolio of deep foundation and earth retention solutions. The company operates as a single integrated service provider combining its own in-house design office with specialized construction equipment. Its core offerings include diaphragm/slurry walls, barrettes, drilled piles (including Franki and Atlas systems), sheet pile walls, Berlin wall systems, micropiles, ground anchors, soil nailing, deep soil mixing (DSM), cut-off walls, pressure injections, and casings. The product portfolio functions as a unified geotechnical service where design and execution are integrated, allowing the company to deliver optimized structural solutions for complex foundation projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Diaphragm Walls (Ściany szczelinowe)
• Barettes (Barety)
• Vertical Cut-off Walls (Pionowe przegrody przeciwfiltracyjne)
• Sheet Pile Walls (Ścianki szczelne)
• Drilled Piles (Pale wiercone)
• Franki Piles (Pale Franki)
• Atlas Piles (Pale Atlas)
• Deep Soil Mixing (DSM)
• Berlin Wall (Obudowa berlińska)
• Micropiles (Mikropale)
• Ground Anchors (Kotwy gruntowe)
• Soil Nailing (Gwoździe gruntowe)
• Injections (Iniekcje)
• Casings (Obudowy)

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• PORR GroupcoreStrategic or Co-development PartnerStump Franki is a subsidiary of PORR Group, one of Europe's leading construction companies with operations across Austria, Germany, Slovakia, Czech Republic, Poland, Switzerland, and Romania. PORR Group, founded in 1869, is headquartered in Vienna and provides comprehensive construction services including general contracting and total execution. PORR Group holds numerous patents demonstrating innovation in construction technologies. The parent company provides strategic direction, financial backing, and access to group-wide expertise and resources.
• Polish Association of Special Foundation Contractors (PZWFS)coreOthersStump Franki is a member of the Polish Association of Special Foundation Contractors (Polskie Zrzeszenie Wykonawców Fundamentów Specjalnych), an industry association representing geotechnical foundation contractors in Poland. Membership provides industry representation, networking opportunities, and credibility within the specialized deep foundation construction sector.

Scale indicators3 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• Bauer AG: German specialty foundation contractor providing piling, diaphragm walls, ground improvement, and geotechnical engineering across Europe and globally. A direct comparable to Stump Franki given the overlapping deep-foundation technology stack and a strong presence in Central Europe.
• Menard (Vinci Construction): Specialty ground improvement and geotechnical subsidiary of Vinci focusing on soil improvement, vibrocompaction, and stone columns. Adjacent within the same broad category as Stump Franki with overlap on ground improvement and infrastructure clients.
• Trevi Group: Italian specialty foundation contractor serving infrastructure, oil & gas, and civil construction globally. Comparable to Stump Franki on deep-foundation services, European clientele, and project-based revenue model.
• Keller Group plc: UK-listed global ground engineering specialist offering piling, ground improvement, geotechnical instrumentation, and earth retention. Directly comparable to Stump Franki on technology breadth, geographic mix of mature and emerging markets, and B2B project delivery model.
• Soletanche Bachy (Vinci Construction): French specialty foundation subsidiary of Vinci with global reach in deep foundations, ground improvement, and underground structures. Highly comparable to Stump Franki on technology, contract structure, and participation in metro/infrastructure megaprojects.

Regional players

• Budimex SA: Poland's largest general construction contractor and a leading infrastructure builder domestically. A key Polish customer and competitor for foundation scopes on roads, bridges, and commercial builds — regionally relevant comparable for Stump Franki's Polish revenue mix.
• ZUE SA: Polish rail and energy infrastructure contractor providing trackwork, traction, and civil-engineering services. Comparable regionally given shared exposure to Polish infrastructure tender pipelines and adjacency on civil foundation work tied to rail investments.
• Nowak Mostostal Sp. z o.o. Polish contractor providing steel structures, mechanical assembly, and foundation works. A domestically focused comparable whose foundation capability competes with Stump Franki on industrial and infrastructure projects in Poland.

Broad incumbents

• PORR AG (Group parent): Austrian-listed parent company of Stump Franki; full-service European construction group covering building, civil, infrastructure, and ground engineering. Not a competitor but the natural reference point for portfolio context, comparability benchmarking, and capital-allocation signals.
• Strabag AG: Austrian-headquartered European construction incumbent and PORR's principal Austrian rival. Operates across the same building and civil engineering categories as PORR/Stump Franki, including foundations, tunneling, and infrastructure — broader scope but overlapping on geotechnical project work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCqEfM14QzMVCQJPxV6evdRw
• Facebookfacebook.com/StumpFranki
• LinkedInlinkedin.com/company/stump-hydrobudowa-sp-z-o-o

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 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 Stump Franki Sp Z O O