Kästli Bau

What Kästli Bau does

Kästli Bau AG is a privately held, family-owned Swiss construction company headquartered in Rubigen (canton of Bern), founded in 1886 and operating with 101-250 employees. The company runs an integrated circular construction platform spanning raw material extraction (gravel quarrying at the Rubigen Kiesgrube), circular building materials production (including the proprietary Zirkulit beton® circular concrete and Niedertemperatur-Asphalt low-temperature asphalt), infrastructure and water construction, controlled deconstruction under an 'Urban Mining' methodology, construction-waste material logistics, and recycling. Its Rubigen facility recovers approximately 95% of delivered materials, keeping aggregates in a closed loop between demolition and new construction.

The business serves two primary customer segments: municipal and infrastructure clients (e.g., ARA Worblental wastewater facility renewal, Ka-We-De and Bernstrasse Deisswil infrastructure projects, Schwammstadtstrasse climate-adaptive road work) and private customers (residential construction, renovation, and individualized turnkey projects). Revenue is generated through project-based construction contracts, transaction-fee material logistics and recycling services, and unit-priced sales of building materials via a public Preisliste 2026. GTM is sales-led and direct: consultation-based selling for private clients and project-based bidding for municipal/infrastructure work, supported by a company website, LinkedIn, Instagram, Facebook, and earned media around sustainability initiatives such as Natur-ELJs in the Aare river.

Underlying technology is process-engineering rather than digital: the differentiator is integrated physical operations (quarrying, recycling plant, materials plant, logistics fleet) combined with the Zirkulit beton® formulation and low-temperature asphalt production, all under in-house quality control. The company markets a closed-loop value proposition ('Bauwerke als Rohstofflager von morgen' — structures as tomorrow's raw material stores), positioning itself as a single-source circular construction provider across the full asset lifecycle. No external investors, M&A, funding rounds, or leadership transitions are disclosed in the available materials.

Name

Kästli Bau

Legal name

Kästli Bau

Website

https://kaestligruppe.ch

Company type

Private

Founded year

1886

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Circular Construction Services

NAICS

Waste Collection (5621), Support Activities for Mining (2131), Ready-Mix Concrete Manufacturing (32732)

SIC

Refuse Systems (4953), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Construction & Demolition (C&D) Debris Transfer & Processing (EUAIABAB)

akta.pro secondary industries

Sand & Gravel Extraction & Processing (IMAKAHAB), Concrete, Asphalt & Masonry Recycling (Crushing & Aggregate Production) (EUAIAHAD), C&D Waste Collection & Hauling (BPALAJAA), Compactor, Container & Roll-off Services (Rental, Service & Logistics) (EUAIAGAC)

Keywords

• Circular construction services
• Construction and demolition
• Building materials supply
• Construction waste recycling
• Gravel quarrying operations

Headquarters

HQ city

Rubigen

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: Infrastructure, earth, and water construction services including project planning and execution. Services range from new construction to maintenance and restoration of civil engineering structures.
2. Deconstruction / Demolition Services: Controlled deconstruction services ('Urban Mining') where buildings are systematically dismantled and materials are separated for recycling.
3. Material Logistics: Supply of construction materials to job sites and disposal of construction waste, enabling efficient material circulation with short transport routes.
4. Building Materials Sales: Sale of circular construction materials including Zirkulit beton® and low-temperature asphalt produced at their Rubigen facility. Public pricing list available.
5. Raw Material Extraction: Gravel quarrying in Rubigen for primary construction materials, with environmentally conscious extraction, energy-efficient operations, and ecological restoration.
6. Recycling Services: Processing and recycling of construction waste materials at the Rubigen facility, with approximately 95% material utilization rate.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Kästli Bau operates as an integrated circular construction company providing infrastructure, earth, and water construction services, controlled deconstruction (Urban Mining), material logistics, construction waste recycling, gravel extraction, and production of circular building materials including the proprietary Zirkulit beton® and Niedertemperatur-Asphalt. The company serves both private customers with individualized turnkey project delivery and municipal/commercial infrastructure clients with project-based execution, all anchored at its Rubigen facility that combines quarrying, recycling, and materials production to keep approximately 95% of delivered materials in circulation.

Product overview

Kästli Bau is a family-owned construction company (founded 1886) offering an integrated circular construction service portfolio. The company provides a unified platform of interconnected services: from raw material extraction (Materialgewinnung) through building material production (Baustoffe, including 'zirkulit beton®' and low-temperature asphalt), construction (Bau), controlled deconstruction (Rückbau), material logistics (Materiallogistik), to recycling operations (approximately 95% recovery rate at Rubigen). The company serves both private customers and infrastructure projects, offering complete project delivery from a single source. The portfolio is organized around seven core competencies spanning the entire construction lifecycle.

Differentiator

Problem solved

Functional benefit

Brands

• zirkulit beton®: Circular concrete product developed and produced in Rubigen as part of Kästli's sustainable construction materials portfolio.
• Niedertemperatur-Asphalt

Products and services

• Bau (Construction)

Quantifiable outcome

• 95% material utilization rate at Rubigen recycling facility
• +1 more outcomes

Named customers3 records

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

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Repurpose AG: Swiss construction-waste recycling and circular-economy specialist operating processing facilities for mineral construction materials. Comparable as a focused C&D recycling operator targeting the same circular-construction opportunity in Switzerland.
• KIBAG Holding AG: Swiss construction materials, recycling, and civil engineering company operating gravel pits, concrete plants, and recycling facilities. Closely comparable in the aggregates, recycling, and infrastructure construction overlap with Kästli's integrated value chain.
• Eberhard Bau AG: Swiss integrated construction, deconstruction, and building materials recycling company operating a comparable circular-economy model. Directly comparable in scope (quarrying, recycling, materials, construction) and customer base (Swiss municipalities and private clients).

Broad incumbents

• Frutiger AG: Swiss construction and building materials company active in civil engineering, construction, and materials production. Overlaps with Kästli in infrastructure construction and aggregates/concrete supply across Switzerland.
• Holcim Ltd: Global Swiss-headquartered building materials giant producing cement, aggregates, ready-mix concrete, and asphalt. Direct overlap with Kästli's materials production (concrete, asphalt) and aggregate extraction but at vastly larger scale and broader geographic reach.
• Marti Group: Major Swiss construction group covering tunnelling, civil engineering, and building construction. Comparable in infrastructure construction and deconstruction capabilities but without Kästli's circular-economy emphasis.
• Sika AG: Swiss specialty chemicals company supplying construction-industry products including concrete admixtures and recycled-content solutions. Adjacent overlap with Kästli's circular concrete positioning via sustainable construction inputs.
• Implenia AG: Switzerland's largest construction general contractor, active in infrastructure, buildings, and tunnelling. Overlaps with Kästli in infrastructure and earthworks but operates at far greater scale across a much broader portfolio beyond circular construction.

Market position

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/kaestlibau
• LinkedInlinkedin.com/company/kaestli

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 Kästli Bau