Site Preparation in the
Canton of Zurich

Gadola Bau AG

Since 1973 · 21–50 empl.·4.3(6)

Gadola Bau AG is a construction company providing services in building construction, civil engineering, façade construction, ground‑heat (geothermal) probes and property management. Its services include renovation, restoration of historic façades, new construction and the planning and installation of ground‑heat probes, including FWS quality certification.

ABRAG AG

Since 2006 · 21–50 empl.·4.6(9)

The core activity of Abrag AG is the execution of demolition, dismantling and gutting work, including concrete demolition, excavation and disassembly, particularly in the field of buildings and structures.

G. + M. Korrodi AG

Since 2008 · 21–50 empl.·5.0(2)

The core activity of G. + M. Korrodi AG is specialized civil engineering, particularly in the Zurich Oberland region. This includes services such as road construction, pipeline construction, landscaping, excavation work, GMK system, slope stabilization, excavation pit securing, contaminated site remediation, pile foundation, winter maintenance, demolition and recycling, water construction and renaturation, neutralization plant and settling basin, as well as transportation and crane work.

BERWERT Bohrungen GmbH

Since 2009 · 1–10 empl.·5.0(6)

The core activity of Berwert Bohrungen GmbH is the execution of concrete cutting works, including: concrete milling and cutting, core drilling, wire sawing, joint cutting, and demolition work. The company offers these services for new buildings, renovations, and inhabited buildings, specializing in concrete cutting technology.

Kellersberger AG

Since 1998 · 1–10 empl.·4.9(7)

The core activity of Kellersberger AG is the provision of construction services, particularly in the areas of: renovations, refurbishments, renovations, extensions and expansions, as well as bathroom and kitchen renovations. The company thus offers services in the fields of civil engineering, structural engineering and demolition.

Häberling Bau GmbH

Since 2003 · 1–10 empl.·4.3(15)

The core activity of Häberling Bau GmbH is the provision of construction services and services in the construction industry.

Kessler Bauarbeiten AG

Since 1993 · 1–10 empl.·5.0(5)

Kessler Bauarbeiten AG is a construction company focused mainly on building construction. Its services include new builds and extensions, renovations and masonry work for private customers, as well as special works such as demolition, sealing, core drilling and paving.

Kilchmann Eglisau GmbH

Since 2000 · 1–10 empl.·5.0(7)

The core activity of Kilchmann Eglisau GmbH is the execution of gravel transports, excavation transports and earthworks, particularly in the greater Zurich area and German-speaking Switzerland. The company thus provides logistical services for construction companies, architecture, gravel plants and private customers.

Frommenwiler Beton bohren und fräsen GmbH

Since 2007 · 1–10 empl.·4.7(6)

Frommenwiler Beton bohren und fräsen GmbH is listed on the official website as Frommenwiler GmbH; the website describes the company as a provider of scaffolding services, including façade and construction scaffolds, special and industrial scaffolds, and roof and protection systems.

BohrTIHO GmbH

Since 2011 · 1–10 empl.·5.0(7)

The core activity of BohrTIHO GmbH is the provision of services in the field of concrete drilling, cutting and separation, particularly: core drilling for the creation of circular openings in concrete, steel, asphalt, masonry and natural stone; concrete cutting with high-quality machines and saw blades for precise cuts; and joint cutting for exact cuts in foundations and floor slabs. The company offers these services to both commercial and private customers and specializes in timely and clean performance.

SpanSet AG

Since 1967 · 11–20 empl.

SpanSet AG develops and supplies products and systems for fall protection, lifting technology, load securing and safety management. Its portfolio includes web lashings, round slings, lifting chains, fall protection systems, as well as inspection services and training courses.

G. Rau AG Bauunternehmung

Since 1976 · 1–10 empl.

G. Rau AG Bauunternehmung is a construction company providing renovation and remodeling, customer repair work, civil engineering and landscaping services. Its offerings include demolition, reinforced-concrete and masonry work, core drilling, drainage, sewer and water-pipe repairs, facade and concrete repairs, snow removal and maintenance.

Bär Bau AG

Since 1984 · 1–10 empl.

The core activity of BÄR BAU AG is the execution of renovations, conversions and extensions of buildings. This includes, in particular, excavation and civil engineering work, masonry work and other technical building services. The company offers its customers a comprehensive service, from consulting and planning to execution and acceptance of the work.

Axsas AG

Since 1988 · 1–10 empl.

The core activity of Axsas AG consists of carrying out concrete demolition and assembly work of all kinds, particularly in the areas of: concrete processing (concrete drilling, concrete cutting, concrete breaking, concrete pressing, concrete milling), concrete demolition and dismantling, grinding work, adhesive anchorings, and assembly work. The company offers efficient, economical, and professional services in these areas and uses modern technology.

Kündig & Winkler AG

Since 1990 · 21–50 empl.

The core activity of Kündig + Winkler AG encompasses construction services, particularly: demolition and dismantling, excavation, specialized deep foundation work, clearing, and natural stone processing. The company thus offers a wide range of services for construction projects, from site preparation to the completion of building projects.

Halbeis AG

Since 1997 · 1–10 empl.

The core activity of Halbeis AG is building and construction.

Duttweiler Bau GmbH

Since 2000 · 1–10 empl.

The core activity of Duttweiler Bau GmbH is the execution of construction projects, including conversions, renovations and new buildings, as well as the provision of services such as master builder work, plastering, screed work and civil engineering. The company also acts as a general contractor and offers architectural planning and construction management.

Mössinger Abbruch AG

Since 2003 · 1–10 empl.

The core activity of Mössinger Abbruch AG is demolition, particularly the professional and timely execution of demolition work in the construction industry.

Honegger Multiservice

Since 2005 · 1–10 empl.

Honegger Multiservice provides demolition, excavation and transport services and offers crane rental with qualified operators. Services include specialist demolition, earthworks, removal and disposal of demolition materials, and transport of construction machinery. The company conducts on-site assessments, project planning and uses its own fleet and equipment.

Baugeschäft P. Bergmann GmbH

Since 2008 · 1–10 empl.

The company provides services in the construction sector, particularly in the areas of: single-family home renovations, basement conversions, installation of electric charging stations, foundation construction, construction of bus stops, construction of double garages, and sidewalk renovations. The company's core activity is the planning and execution of construction projects, including renovations, conversions, and new builds, for private and potentially commercial clients.

BCL Schweiz AG

Since 2011 · 11–20 empl.

The company's core activity is construction logistics, particularly consulting, planning and execution of logistical processes on construction sites to increase the productivity and safety of construction projects.

Hans Kellermüller AG

Since 2011 · 1–10 empl.

Hans Kellermüller AG carries out electrical rough-in construction and core drilling, providing insertion work as well as channel and route assembly.

Gennaro GmbH

Since 2011 · 1–10 empl.

Gennaro GmbH carries out masonry, demolition, bathroom renovations, flooring and tiling work, and renovations of kitchens, bathrooms and living rooms, including plastering and the removal of load-bearing and non-load-bearing walls.

Jovi Abbruch Bauservice GmbH

Since 2012 · 11–20 empl.

The core activity of JOVI encompasses a wide range of services in the construction and waste management sectors. The main activities can be described as follows: * Demolition and dismantling: The company offers demolition services for buildings, walls, drywall, concrete, and flooring, including manual gutting of high-rise buildings. * Renovation and interior construction: JOVI carries out renovation and interior construction work, including waste disposal. * Waste management and construction logistics: The company provides waste management services, including waste disposal in accordance with applicable regulations. Additionally, it offers construction logistics services, including access control and waste management. * Cleaning: JOVI offers various cleaning services, including maintenance cleaning, janitorial services, facade cleaning, construction cleaning, and event cleaning. Overall, the core activity of the company can be described as comprehensive services in the construction, waste management, and cleaning sectors.

MEISTER BAU AG

Since 2013 · 1–10 empl.

The core activity of Meister Bau Umbau und Renovationen AG encompasses a wide range of construction services, including: * Renovation and refurbishment * Infrastructure and special projects * Civil engineering * Scaffolding * Demolition work * Concrete drilling and cutting * Master builder services * Excavation work * In-situ concrete construction * Industrial and commercial construction * Precast concrete elements * Customer-specific masonry work * Repairs * Paving and flooring * Plastering * Sewerage and pipeline systems * Water damage restoration * Concrete rehabilitation The company thus offers a comprehensive range of construction services for various industries and clients.

Kern Recycling AG

Since 2013 · 51–100 empl.

Kern Recycling AG operates a gravel plant and a recycling facility producing various aggregates, including concrete gravel, certified 0/45 sand and planiekies. The facility processes recycled materials (concrete, natural stone, paving) into RCA aggregates and sorts them by size for reuse in construction works.

Holdi GmbH

Since 2013 · 1–10 empl.

Holdi GmbH provides services in civil and structural construction, gardening, and agriculture. Its work includes contract operations such as sowing, baling, wrapping, and forestry work.

Landolt Betonbearbeitung AG

Since 2014 · 1–10 empl.

The core activity of Landolt Betonbearbeitung AG is concrete processing, including specific services such as drilling, pressing, cutting and grinding of concrete.

U. Schmid AG

Since 2015 · 1–10 empl.

The core activity of U. Schmid AG includes the execution of crane, forestry and gardening work as well as special transports. Specifically, the company offers the following services: crane work (lifting, gripping, felling, milling), forestry work (particularly in connection with storms and emergencies), gardening work, and special transports. The company has a wide range of machines and a network of specialists to provide these services flexibly and in high quality.

Zumbach Tiefbau AG

Since 2015 · 11–20 empl.

Zumbach Tiefbau AG is a construction company specialising in civil engineering and utility installation. Its services include road construction, watercourse engineering, spring collection, landscaping, demolition and excavation, machine hire and a 24‑hour emergency service. The company also operates a specialised Menzi Muck walking excavator for work in difficult terrain.

LussiBau GmbH

Since 2016 · 1–10 empl.

The core activity of LussiBau GmbH is the execution of civil engineering, new construction and renovation work, including renovations and refurbishments, with a focus on energy-efficient building and the prevention of construction damage.

DiMa Bauunternehmung AG

Since 2017 · 1–10 empl.

The core activity of DiMa Bauunternehmung AG is the execution of construction projects, particularly: high-rise and new buildings, conversions and renovations, restorations and plastering work, as well as drywall and gypsum construction. The company thus offers comprehensive services in the construction sector, from planning to the execution of construction projects.

Gebert Grund & Tiefbau AG

Since 2017 · 21–50 empl.

The core activity of Gebert Grund- & Tiefbau AG is the execution of foundation and civil engineering works, including demolition, excavation and earthworks.

Eli Abbruch + Tiefbau AG

Since 2018 · 1–10 empl.

Eli Abbruch + Tiefbau AG carries out demolition, excavation and civil engineering work. The company also undertakes pit excavation, excavation support, drainage work, and garden and landscaping services.

Leuenberger Tiefbau AG

Since 2018 · 1–10 empl.

The core activity of Leuenberger Tiefbau AG is civil engineering and road construction, including: demolition and disposal services (deconstruction, mechanical demolition, selective demolition), excavation of building pits, installation of utility lines (water, sewage, telecommunications and power lines), maintenance of rural roads (construction and maintenance of non-asphalted roads), stone walls and squares, and stream constructions. The company offers these services to private individuals, municipalities and companies in the Zurich region.

Josef Kälin Baggerbetrieb AG

Since 2019 · 11–20 empl.

Josef Kälin Baggerbetrieb AG provides civil engineering services including excavation and site works, utility-line (werkleitungs) construction, road works and building demolition, supported by an equipped machinery fleet and experienced operators.

Partnerbau AG

Since 2021 · 11–20 empl.

Partnerbau AG is a construction company that performs building construction, civil engineering, conversions and renovations. Its services include masonry, building and bathroom renovations, pipe laying and deconstruction, and it supports projects from planning through to completion.

RD TNL AG

Since 1937 · 21–50 empl.

The core activity of Rodio Group lies in the field of geotechnics and specialized construction works, particularly in the areas of: injections, high-pressure injections, micropiles, diaphragm walls, and ground freezing. The company thus provides specialized services for the construction and renovation of buildings, particularly in the field of foundation engineering and special deep foundation works.