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Rias Gourmet GmbH 

Kloten · Since 2016

Rias Gourmet GmbH provides private chef services and maintains the "nefs" gourmet blog, publishing recipes and content related to Thermomix TM6/7 and Foodpunk.

romus AG 

Kloten · Since 2021

The company's core activity is consulting and implementing solutions for the insurance industry, particularly in the areas of SAP solutions, software integration, project management, test management and organizational consulting, with a focus on insurance core processes and payment transactions.

Root Three GmbH 

Kloten · Since 2021

Root Three GmbH specialises in electrical planning and safety inspections of electrical installations. The company performs independent inspections under the Niederspannungs-Installationsverordnung (NIV) and provides device testing (EN/SN/NEV), measurements (network quality, photovoltaic systems up to 30 kVA, EV charging, thermography), engineering and consulting services, and internship placements for the BPEL professional exam.

Rowex GmbH 

Kloten · Since 2021

Rowex GmbH provides facility and property management services, including operator services for complex buildings and large sites. Its offerings include building administration, management of technical installations, and warehouse-space solutions.

Rückholdienst und Servicefahrten GmbH, Waldshut-Tiengen, Zweigniederlassung Kloten 

Kloten · Since 2017

The core activity of the company "Rückholdienst und Servicefahrten GmbH" is the provision of transportation services for people with mobility impairments, in particular wheelchair users, as well as their accompanying persons. The service includes transportation from A to B and offers a comprehensive carefree service to enable or facilitate the participation of participants in social and cultural life.

Rüedi Alfred, Fleischhandel 

Kloten · Since 2002

SBU AG 

Kloten · Since 2020

SBU AG supports clients on all matters related to the lifecycle of infrastructure assets. The engineering firm provides structural, operational, organizational and financial solutions and works on sponge-city (climate-resilient urban drainage) concepts, property drainage, maintenance and rehabilitation/financing strategies, as well as sensor-based monitoring.

Schibli AG 

Kloten · Since 1972

Schibli AG designs, manufactures and supplies switchgear and power distribution systems together with control and automation solutions. Services include project planning and production, PLC programming, maintenance and service (including the sHub maintenance planner), and energy distribution solutions for photovoltaic and e‑mobility applications.

Schréder Swiss AG 

Kloten · Since 2024

SEG24 AG 

Kloten · Since 2013

The core activity of SEG24 is emergency response and damage control in various types of emergencies such as oil and chemical spills, fires, storms and other disasters. The company provides 24/7 emergency services, deployment coordination, hazardous substance remediation, disposal and other specialized services to minimize material damage and support the emergency response team.

shellyBits GmbH 

Kloten · Since 2018

shellyBits GmbH develops software and provides IT services, including custom applications and simple websites. The team follows agile principles, emphasizes prototyping over detailed specifications, and maintains short, transparent communication.

Sigrid Haustechnik GmbH 

Kloten · Since 2019

The core activity of Sigrid Haustechnik is the provision of sanitary and heating services, including installation, maintenance, repair and consulting, for private and business customers in the cantons of Zurich, Aargau and Schwyz.

Sigrist Specogna Architektur und Design GmbH 

Kloten · Since 2023

Sigrist Specogna is an architectural firm specializing in the planning and realization of construction projects. The company's core activity includes the creation of architectural concepts, planning and execution of construction projects, including renovations, expansions and new buildings, as well as the design of interior and exterior spaces.

SimFlight ZRH GmbH 

Kloten · Since 2024

SimFlight ZRH GmbH operates an authentic Airbus A320 flight simulator and offers booked flight experience sessions and simulator training. Services include instruction by active airline pilots, customizable flight scenarios, and team/CRM training for corporate clients.

Skyline Limousinen Sahin 

Kloten · Since 2019

The core activity of Skyline Limousinen is the operation of a limousine service in the Zurich region, safely, reliably and comfortably transporting passengers to their destination.

Sovaria Treuhand AG 

Kloten · Since 1984

The core activity of Sovaria Treuhand AG is the provision of trust services, particularly in the areas of: tax consulting and planning for individuals and companies; corporate consulting, including the establishment, restructuring and liquidation of companies; financial and accounting services, including bookkeeping, accounting and financial planning; personnel administration, including payroll accounting and annual declarations; trust services, including advice on marital and inheritance law, last wills and testaments, and estate administration; property management, including the administration of real estate and condominium ownership; and fiscal representation, including the establishment of tax representation with the Federal Tax Administration. The company positions itself as a personal and direct point of contact for SMEs, individual companies, start-ups and private individuals, offering professional services based on 40 years of experience.

Specogna Holding AG 

Kloten · Since 2009

Specogna Holding AG is a holding company that provides services and oversight for independently managed companies grouped under its umbrella. It offers construction services and integrated solutions and publishes information about its group companies and contact details on its website.

Specogna Management AG 

Kloten · Since 2012

Stieger Immobilien AG 

Kloten · Since 2007

Stieger Immobilien AG is a real estate company that provides project development, construction management and building realization services, and offers brokerage and property-management services for residential properties.

stimo Generalunternehmung AG 

Kloten · Since 2008

stimo Generalunternehmung AG is a general contractor providing development, realization and construction management services for building projects. It delivers turnkey buildings and manages scheduling, cost control and quality assurance throughout project execution.