Marti AG Solothurn

What Marti AG Solothurn does

Marti AG Solothurn is a mid-sized Swiss general construction contractor headquartered in Solothurn and operating as part of the Marti Gruppe Solothurn conglomerate. Founded in 1928 and employing 101-250 people, the company delivers civil engineering, road and railway construction, bridge and infrastructure construction, building construction and renovation, demolition and recycling, hazardous material remediation, and custom masonry services across northwest Switzerland. A distinguishing technical capability is its proprietary Ultrahochfester-Faserbeton (UHFB) ultra-high-performance fiber-reinforced concrete, offered in two certified formulations (Mix G for horizontal surfaces, Mix ff for vertical shuttered surfaces) with compressive strength above 140 N/mm² and capillary water absorption below 100 g/m²s^0.5. The firm operates the Werkhof Bellach, a vertically integrated logistics and recycling facility supplying materials, fleet maintenance, metalworking, and production of recycled aggregates (RC-gravel, RC-concrete, RC-asphalt) for internal and project use.

The business model is project-based and tender-driven, with revenue generated through one-time construction contracts awarded via competitive public tendering and direct procurement. Pricing is not publicly disclosed; contract values are determined per project through competitive bidding and range from small demolitions (CHF 0.02M) to major infrastructure packages exceeding CHF 40 million, including the CHF 45M N02 Belchen tunnel and CHF 40M Eppenberg tunnel. Large-scale projects are executed through ARGE (Arbeitsgemeinschaft / working consortium) arrangements, frequently with sister Marti Group companies such as Marti Infra AG (Moosseedorf), STA Strassen- und Tiefbau AG (Olten), and Marti AG Basel. Customer mix is dominated by Swiss public-sector entities — federal agencies (ASTRA, SBB, Armasuisse, BLS Netz AG) and cantonal/municipal authorities — complemented by private-sector buyers in energy (Alpiq, Regio Energie, KEBAG), real estate development (Losinger Marazzi, Swiss Prime Anlagestiftung), and regulated industrial verticals (Jacobs/Biogen biopharma). Demand generation is driven by reference track record, technical qualifications, and the company's regional Cantonal Solothurn base rather than active marketing.

Geographically, the company is anchored in Canton Solothurn and the broader northwest Switzerland region, with no disclosed international footprint. The company's competitive positioning rests on UHFB technology, vertically integrated recycling via the Werkhof, the Marti Group's pooled capacity for consortium bidding, and a deep multi-decade reference base with Swiss public infrastructure clients. Revenue is not publicly disclosed; based on documented contract values and headcount benchmarks, estimated annual revenue falls in the $50M-$100M range (Medium confidence). AI/ML capabilities are not material to the offering; the differentiators are proprietary concrete chemistry, capital assets, and consortium-enabled project capacity rather than algorithmic capability.

Name

Marti AG Solothurn

Legal name

Marti AG Solothurn Bauunternehmung

Website

https://marti-solothurn.ch

Company type

Private

Founded year

1928

Operating status

Operating

Headcount range

101–250 employees

Short description

Marti AG Solothurn is a Swiss general contractor (founded 1928, 101-250 employees) delivering civil engineering, tunneling, road/rail construction, building construction, demolition/recycling, and hazardous remediation, with proprietary UHFB ultra-high-performance concrete technology. It primarily serves federal, cantonal, and municipal public-sector clients in northwest Switzerland via competitive tendering and consortium (ARGE) bids.

Ownership category

akta.pro rank

Headquarters

HQ city

Solothurn

HQ country

Switzerland

HQ region

Europe

Offices2 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. Construction Contracts: Marti AG Solothurn generates revenue primarily through construction contracts awarded via public tendering and direct procurement. Projects range from small-scale work (CHF 0.02M demolitions) to major infrastructure projects exceeding CHF 40M (e.g., Eppenberg tunnel). Revenue is project-based, one-time per contract, with no recurring subscription component. The company operates as a general contractor and as part of ARGE (working groups) for large-scale projects.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels2 records

Core offering

Marti AG Solothurn is a Swiss general construction contractor executing civil engineering, road and railway construction, bridge construction, building construction, and industrial construction projects. The company specializes in Ultrahochfester-Faserbeton (UHFB), a proprietary ultra-high-performance fiber-reinforced concrete, and operates an in-house Werkhof facility for material supply, fleet maintenance, and recycling of construction aggregates. It secures projects primarily through competitive public tendering and direct procurement by government agencies and private clients.

Product overview

Marti AG Solothurn is a construction company offering a comprehensive portfolio of civil engineering, building construction, and specialized services. Core offerings include Ingenieurtiefbau (civil engineering with bridge, water reservoir, and infrastructure construction), Hochbau und Umbau (residential, industrial building and renovation), and Tief- und Strassenbau (road construction and utilities). The company specializes in Ultrahochfester-Faserbeton (UHFB) - ultra-high-performance fiber-reinforced concrete for waterproofing and structural reinforcement. Additional services include demolition and recycling, hazardous material remediation, custom masonry, and a workshop facility that produces recycled construction materials. The firm also provides sustainability and circular economy services.

Differentiator

Problem solved

Functional benefit

Products and services

• Ingenieurtiefbau (Civil Engineering) Specialized civil engineering and concrete construction services, including bridge construction, sewage treatment plants, water reservoirs, infrastructure construction, and noise barriers for public and private clients.
• Ultrahochfester-Faserbeton (UHFB / Ultra-High-Performance Fiber-Reinforced Concrete) Proprietary ultra-high-performance fiber-reinforced concrete with compressive strength exceeding 140 N/mm², bond tensile strength above 4.0 MPa, and flexural tensile behavior exceeding 7.0 MPa. Certified products include UHFB Mix G (horizontal surfaces) and UHFB Mix ff (vertical shuttered surfaces). Used for waterproofing, structural reinforcement, and wear-resistant surfaces.
• Tief- und Strassenbau (Road and Civil Construction) Civil engineering and road construction services including asphalt paving, excavation, hydraulic engineering, rail construction, and utility line installation for public and private clients.
• Hochbau und Umbau (Building Construction and Renovation) Residential and commercial building construction, industrial buildings, renovations, and exposed concrete work (Sichtbeton) for private developers, enterprises, and public clients.
• Rückbau und Recycling (Demolition and Recycling) Building demolition services with material recovery and recycling operations, producing recycled aggregates including RC-gravel mixtures, RC-concrete aggregate, and RC-asphalt aggregate.
• Schadstoffsanierungen (Hazardous Material Remediation) Safe removal and remediation of hazardous building materials including asbestos and other contaminants, typically performed prior to demolition or renovation works.
• Kundenmaurer (Custom Masonry) Custom masonry services for specialized construction requirements, providing tailored brickwork and masonry for project-specific applications.

Quantifiable outcome

• Compressive strength > 140 N/mm2 for UHFB vs. normal concrete
• +2 more outcomes

Named customers14 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

Feature1 record

Partnerships

Ten partnerships are on record, tiered core and minor.

• Marti Infra AG, MoosseedorfcoreStrategic or Co-development Partner · 1 January 2024For the Sanierung Deponie Ritzer project (CHF 3.2 Mio., 2024–2026), the ARGE consists of pure Marti Group companies: Marti Infra AG (Moosseedorf), STA Strassen- und Tiefbau AG (Olten), and Marti AG Solothurn.
• STA Strassen- und Tiefbau AG Olten (in ARGE Ritzer)coreStrategic or Co-development Partner · 1 January 2024STA Strassen- und Tiefbau AG Olten is part of the ARGE for Sanierung Deponie Ritzer (2024–2026) alongside Marti Infra AG and Marti AG Solothurn.
• STA Strassen- und Tiefbau AG Olten (in ARGE Ländiweg)coreStrategic or Co-development Partner · 1 January 2022For Olten Ländiweg project (CHF 2.5 Mio., 2022), Marti AG Solothurn served as the lead (federführung) with STA handling technical leadership (technische Leitung). Both companies share commercial management.
• Walo Bertschinger AGminorStrategic or Co-development Partner · 1 January 2020ARGE UHPC (50% Marti AG Solothurn, 50% Walo Bertschinger AG) for UHFB applications including Staumauer Molina (CHF 0.1 Mio., 2020).
• Eberhard Bau AGminorStrategic or Co-development Partner · 1 January 2018ARGE Emme 2017 for Luterbach Revitalisierung Aareufer (2018), consisting of Marti AG Solothurn, Eberhard Bau AG, Gebr. Jetzer AG, and wsb AG.
• Gebr. Jetzer AGminorStrategic or Co-development Partner · 1 January 2018ARGE Emme 2017 for Luterbach Revitalisierung Aareufer (2018), consisting of Marti AG Solothurn, Eberhard Bau AG, Gebr. Jetzer AG, and wsb AG.
• wsb AGminorStrategic or Co-development Partner · 1 January 2018ARGE Emme 2017 for Luterbach Revitalisierung Aareufer (2018), consisting of Marti AG Solothurn, Eberhard Bau AG, Gebr. Jetzer AG, and wsb AG.
• Walo Bertschinger AGminorStrategic or Co-development Partner · 1 January 2018ARGE UHPC (50/50 joint venture) for Buseno Staumauer Molina UHFB project (2020, CHF 0.1 Mio.), combining Marti AG Solothurn's UHFB expertise with Walo Bertschinger AG's capabilities.
• STA Strassen- und Tiefbau AG OltencoreStrategic or Co-development Partner · 1 January 2015Marti AG Solothurn and STA Strassen- und Tiefbau AG Olten form ARGE MARTI PORTAL GRETZENBACH for execution of the CHF 40 million Eppenberg tunnel section 3 'Verzweigung Gretzenbach' (2015–2019). Marti was responsible for FF (general foreman/TL) and KL (concrete work).
• Marti AG BaselcoreStrategic or Co-development Partner · 1 January 2014Marti AG Solothurn and Marti AG Basel formed ARGE BASO STB for the CHF 45 million N02 Belchen tunnel rehabilitation project (2014–2018). Marti AG Solothurn served as FF (general foreman) and TL (technical lead), while Marti AG Basel served as TL and KL.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Marti Gruppe Solothurn: The parent group of Marti AG Solothurn, encompassing sister companies including Marti Infra AG, STA Strassen- und Tiefbau AG, and Marti AG Basel. Operates the same Swiss construction competencies (civil engineering, tunneling, UHFB) through ARGE joint ventures, making it the most direct comparable for capability, customer base, and contract structure.
• Walo Bertschinger AG: Swiss general contractor with overlapping competencies in civil engineering, road construction, and concrete technology. Forms the ARGE UHPC joint venture with Marti AG Solothurn for UHFB applications, including the Buseno Staumauer Molina project, indicating direct technology and market overlap.
• Eberhard Bau AG: Swiss construction firm active in civil engineering, road construction, and site development. Partner of Marti AG Solothurn in the ARGE Emme 2017 consortium for the Luterbach riverbank revitalization, sharing direct exposure to the same regional Solothurn-area client base.

Broad incumbents

• Implenia AG: Switzerland's largest construction and real estate services company, active across civil engineering, tunneling, buildings, and infrastructure. Competes with Marti AG Solothurn for major federal tenders (SBB, ASTRA) and offers an overlapping capability set, but at substantially larger scale and broader geographic scope.
• Hochtief AG: One of Europe's largest construction groups with global infrastructure and tunneling operations. Competes for the same large-scale Swiss and European infrastructure tenders and provides a broad-incumbent reference point for how Marti AG Solothurn's specialization compares against scaled international players.

Regional players

• Frutiger AG: Swiss construction group with civil engineering, tunneling, and building construction capabilities. Operates across multiple Swiss cantons with a similar mid-sized contractor profile and competes for overlapping infrastructure and building tenders in the domestic market.
• Anliker AG Bauunternehmung: Swiss construction firm specializing in civil engineering, building construction, and renovation work. Comparable in size and service portfolio to Marti AG Solothurn, serving both public and private clients across German-speaking Switzerland.
• Rothpletz, Lienhard + Cie AG: Swiss construction company offering civil engineering, building construction, and infrastructure services. Mid-sized regional player with overlapping competencies in bridge, road, and infrastructure construction, comparable to Marti AG Solothurn's regional Swiss focus.

Others

• Sika AG: Swiss specialty chemicals company producing concrete admixtures, UHPC/UHFB technology, and construction chemical systems. Adjacent rather than competitive, since Sika supplies materials while Marti AG Solothurn applies them, but directly relevant for benchmarking the UHFB/UHPC technology trajectory and market adoption.
• Holcim Ltd: Swiss-headquartered global building materials and aggregates producer with a strong position in low-carbon concrete and recycling. Adjacent rather than directly competitive, but materially comparable on the recycled-concrete-aggregate (RC) and circular-economy value chain that Marti operates through Werkhof Bellach.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 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 Marti AG Solothurn