Sta Strassen- Und Tiefbau Ag

What Sta Strassen- Und Tiefbau Ag does

STA Strassen- und Tiefbau AG (commercial name "STA Olten") is a Swiss regional construction contractor founded in 1965 and headquartered in Olten, Canton Solothurn. The company delivers three core service lines: Strassenbau (road construction covering new build, renovation, asphalt installation, drainage, and noise barriers), Tiefbau (civil engineering covering excavation, trenching, pipeline and canal construction, watercourse engineering, foundations, terrain modeling, and railway track construction), and Kundenmaurer (customer masonry for residential and small-scale works). Service delivery is backed by a modern, extensive machinery fleet ranging from small equipment to large specialized machines.

STA operates exclusively in the cantons of Solothurn and Aargau, with three physical sites — the Olten headquarters (Belchenstrasse 3, 4600 Olten), a works yard (Werkhof) in Däniken, and a branch (Zweigniederlassung) in Murgenthal Riken. Revenue is generated on a project-based professional services model: government clients (SBB, Cantonal departments of Solothurn, municipal entities including Olten städtische Betriebe, ZAO Abwasserregion Olten, and several Gemeinden) are secured via public tendering; private clients engage directly for quoted work. Documented contract values span roughly CHF 70,000 to CHF 43 million, with the Eppenbergtunnel rail project (2015–2020, CHF 43 million) being the largest named reference.

Since 1988, STA has been a majority-owned subsidiary of Marti AG Solothurn and operates as one of 80+ construction companies within the Marti Group while preserving its independent brand, management, and operational autonomy. The company holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications issued by SQS/IQ NET, qualifying it for stringent public procurement requirements. Go-to-market relies on direct enterprise field sales, the corporate website (sta-olten.ch), project reference listings, group-level social channels, and recruitment platforms — with no reseller, marketplace, or e-commerce channels.

Name

Sta Strassen- Und Tiefbau Ag

Legal name

STA Strassen- und Tiefbau AG

Website

https://sta-olten.ch

Company type

Private

Founded year

1965

Operating status

Operating

Headcount range

11–50 employees

Short description

STA Strassen- und Tiefbau AG is a Swiss regional construction contractor founded in 1965 in Olten, delivering road construction, civil engineering, and masonry services to public and private clients across the cantons of Solothurn and Aargau as part of the Marti Group.

Ownership category

akta.pro rank

Product category

Civil Engineering and Road Construction Services

NAICS

Nonresidential Building Construction (2362), Masonry Contractors (238140)

SIC

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

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

Keywords

• Road construction services
• Civil engineering
• Excavation and earthworks
• Pipeline construction
• Customer masonry services

Headquarters

HQ city

Olten

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: Project-based revenue from road construction, civil engineering (Tiefbau), and customer masonry (Kundenmaurer) services. Revenue is earned through awarded construction contracts with government and private clients, typically billed upon project completion or milestone achievement.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

STA Strassen- und Tiefbau AG is a construction services company offering road construction (Strassenbau), civil engineering (Tiefbau), and customer masonry (Kundenmaurer) services in the Swiss cantons of Solothurn and Aargau. The company executes new construction, renovation, excavation, pipeline construction, hydraulic engineering, foundation work, and residential masonry projects using a modern and extensive machinery fleet, serving government (cantons, municipalities, SBB) and private clients.

Product overview

STA Strassen- und Tiefbau AG is a construction company offering three main service areas: Strassenbau (road construction), Tiefbau (civil engineering), and Kundenmaurer (customer masonry). The company operates with modern machinery and serves the cantons of Aargau and Solothurn in Switzerland. As part of the Marti Group (over 80 construction companies), the firm provides comprehensive construction solutions from road building and underground infrastructure to residential masonry work.

Differentiator

Problem solved

Functional benefit

Products and services

• Road Construction (Strassenbau) Road construction services including new construction and renovation of highways, cantonal, and municipal roads. Offers complete solutions from track construction and asphalt installation to edge restraints, drainage, and noise barriers for government clients in the cantons of Solothurn and Aargau.
• Civil Engineering (Tiefbau) Civil engineering services encompassing excavation, trench and pipeline construction, watercourse corrections, river protections, foundations, terrain modeling, and railway track construction. Features an extensive machinery fleet from small equipment to large specialized machines for government and private clients.
• Customer Masonry (Kundenmaurer) Masonry services for residential properties including renovations, repairs, and maintenance. The team operates from fully equipped service vehicles, emphasizing clean and orderly construction sites for residential property owners.

Named customers9 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Marti AG SolothurncoreStrategic or Co-development PartnerSTA Strassen- und Tiefbau AG is a subsidiary of Marti AG Solothurn, which holds the majority of STA shares since 1988. Despite Marti's controlling interest, STA remains an independent company with its own brand and operations. The relationship provides STA access to Marti Group's 80+ construction companies, shared resources, specialized competencies, and group-wide procurement efficiencies. STA also benefits from the Marti Group brand reputation in Swiss construction.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Implenia AG: Switzerland's largest construction and real-estate services group, active in civil engineering, road construction, and tunneling. Competes with STA directly on larger cantonal and federal tenders, including SBB-related work.
• PORR AG: Austrian-headquartered European construction group with significant Swiss operations in civil engineering and road construction. Competes for larger federal and cantonal tenders that STA also bids on.
• Strabag AG: Major European construction group with Swiss operations in civil engineering, road construction, and infrastructure. Active in public tenders where STA competes on road and tunnel projects.

Direct peers

• Walo Bertschinger AG: Major Swiss general and civil engineering contractor with strong road construction and infrastructure capabilities. Competes for the same public infrastructure tenders across cantons including Solothurn and Aargau.
• Marti AG Solothurn: Parent company of STA Olten and a Marti Group anchor in the Solothurn region. Delivers road, civil engineering, and building construction across the same canton, with overlapping public-sector client base and shared resources.
• KIBAG AG: Swiss construction and civil engineering company with road construction, earthworks, and infrastructure services. Overlaps with STA on cantonal and municipal tenders in the Swiss Mittelland.
• Anliker AG: Swiss construction group active in road construction, civil engineering, and building construction. Competes for similar cantonal and municipal projects in the German-speaking Swiss market.
• Eberhard Bau AG: Swiss civil engineering and road construction contractor with strong regional presence in the canton of Zürich and Aargau. Direct overlap with STA in road and infrastructure tenders in German-speaking Switzerland.
• Frutiger AG: Swiss construction group covering road construction, civil engineering, and building construction. Comparable in service mix and canton-level public-sector focus, particularly in the German-speaking Swiss corridor.

Regional players

• Henz Tiefbau AG: Swiss regional civil engineering and road construction contractor. Comparable in service scope (Tiefbau, Strassenbau) and target customer base (cantons and municipalities), serving as a closer regional comparator to STA's Solothurn/Aargau footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sta-strassen--und-tiefbau-ag

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Sta Strassen- Und Tiefbau Ag