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Gitarrenbau B. Wittmer 

Aarau · Since 1992

The core activity of Wittmer Gitarrenbau is the manufacture of guitars.

Global Trade & Rental GmbH 

Aarau · Since 2017

Global Trade & Rental GmbH provides hospitality consulting and optimization services, supporting project planning through turnkey delivery for catering businesses, including site search, permits, staffing and training, as well as event management and rental of gastronomy premises.

GönHort GmbH 

Aarau · Since 2018

The core activity of GönHort GmbH is the care of kindergarten and school children in a daycare setting, including the completion of homework under pedagogical supervision, as well as the organization of activities such as games, sports and projects to promote the development of self-confidence, social skills and community spirit.

Green Leaves Ausbildungs-Stiftung 

Aarau · Since 2022

The core activity of the Green Leaves Education Foundation is the promotion of educational projects for disadvantaged individuals in Switzerland and in developing countries in Asia, Africa and Latin America. This includes supporting educational projects at all levels (primary school, secondary school, higher education/university), promoting vocational training projects, and supporting the establishment and operation of educational institutions. The foundation covers a wide range of education and training costs, including school fees, costs for learning materials, teacher salaries, transportation costs, and living expenses during training.

gs-soft AG 

Aarau · Since 2000

The core activity of gs-soft AG is the development of Mission Critical Software for large enterprises, particularly in the areas of: * Data Warehouse (DWH) and DataMoving (ETL) * Military planning and C4ISR systems * Military GIS systems * Nuclear power plant waste management systems * Nuclear power plant chemistry and radiological information systems * SOA enterprise systems. The company develops and distributes, in particular, the software products Safyr, Connect for SAP, MSS, MilX, MssStick, ISRAM, CIS and Perdos.

Gurtner Service AG 

Aarau · Since 1989

The core activity of Gurtner Service AG is the provision of services in the areas of project planning, execution planning, expertise, and project/construction management for metal construction, mechanical engineering, and industry. This includes in particular: Project planning: development of plans and concepts for projects in metal construction, mechanical engineering, and industrial construction; Execution planning: creation of detailed plans for the realization of projects; Expertise: creation of expert opinions and reports in collaboration with construction experts; Project and construction management: monitoring and coordination of projects on site, including construction supervision and management. The services are primarily provided for customers from industry, mechanical engineering, and metal construction.

Haldimann-Stiftung 

Aarau · Since 2000

The core activity of the Haldimann Foundation is the promotion of animal welfare in Switzerland. It supports and finances projects that serve the well-being of animals and awards an animal welfare prize. The foundation operates throughout Switzerland and is based in Aarau.

Hälg & Co. AG, Zweigniederlassung Aarau 

Aarau · Since 2022

Hälg & Co. AG, Zweigniederlassung Aarau is a branch of the Hälg Group providing building services engineering and service work. The branch offers planning, installation, maintenance and renovation of heating, cooling, ventilation and sanitary systems, as well as related service and industrial solutions.

Hand- und Aesthetik Center Hirslanden GmbH 

Aarau · Since 1996

Hans Kappeler Unternehmensberatung 

Aarau · Since 1989

Hans Kappeler Unternehmensberatung provides services for buying and selling companies as well as general management consulting. Services include advising on succession, supporting buyers and sellers throughout M&A processes, financial advisory, and expertise in the healthcare sector; the firm collaborates with trustees, tax specialists and banking partners.

Hanspeter Frischknecht und Partner AG 

Aarau · Since 2001

Hans und Lina Blattner-Stiftung 

Aarau · Since 1988

The core activity of the company "Hans und Lina Blattner Stiftung" is to provide grants to projects of cultural and non-profit institutions in the canton of Aargau, preferably with a connection to the city of Aarau.

HEFTI. HESS. MARTIGNONI. Aarau AG 

Aarau · Since 1999

HEFTI. HESS. MARTIGNONI. Aarau AG provides engineering and building-services planning, including overall building-technology (HLKSE+), MEP and electrical engineering, with competencies in building automation, energy supply, photovoltaics, e-mobility, lighting, safety and fire protection.

Heierle Zahnarztpraxis 

Aarau · Since 2025

The core activity of the company "Heierle Zahnarztpraxis" is the dental care and treatment of patients, including prevention, maintenance, aesthetics, reconstructive dentistry, surgery, pediatric dentistry and consulting.

HEKURO AG 

Aarau · Since 2004

The core activity of HEKURO AG encompasses the development, manufacturing and servicing of machines and systems, particularly in the fields of CNC mechanics, CNC laser engraving, bakery equipment and machine servicing. The company also offers specialized solutions for the bakery industry, such as the construction of oven lines and conveyor systems.

Helbling Equities AG 

Aarau · Since 2006

Helbling Equities AG is a fund that invests in technology startups and acts as a financial investor to support the technology‑startup ecosystem. It targets startups aligned with Helbling’s services—including home and office appliances, medtech, machinery and automation, industrial equipment, software and IT, optical systems, microtechnology, mechatronics, robotics and mobility—and invests at all development stages.

Helbling Technik AG 

Aarau · Since 2001

Helbling Technik AG provides engineering and technical services, including technology development, product development, industrialization, and project and quality management. The unit applies structured project and quality management and holds ISO certifications for its processes.

Helga Farkas Artistic 

Aarau · Since 2009

The core activity of Helga Farkas ARTistic is the creation of artistic works, particularly murals and canvas paintings, as well as the production of artisanal items such as design cups, decorative cushions, and gift items. The company also offers creative services to support customers in designing and decorating their living and working spaces.

Herzchirurgie Aarau AG 

Aarau · Since 2021

The company's core activity is the provision of medical services, particularly in the fields of cardiac surgery, cardiology, oncology, abdominal and musculoskeletal surgery, urology, obstetrics and emergency medicine. The company operates a hospital with various specialist departments and centers, where patients are treated by qualified doctors and nursing staff.

hilfiker & partner ag 

Aarau · Since 2015

The company provides interdisciplinary consulting services in the areas of insurance, pension planning, law, trust and succession planning.

Hilfsfonds des Berufsverbands Bildung Aargau 

Aarau · Since 1968

The core activity of the company 'Bildung Aargau' is to represent and promote the interests of teachers and specialists at Aargau schools, with the aim of ensuring high-quality education. This also includes providing information, analyses and services for members, as well as implementing initiatives and campaigns to improve educational quality.

Hirschi Schmid Architekten AG 

Aarau · Since 1999

The core activity of Hirschi Schmid Architekten AG is the provision of services in the field of architecture and construction management, including planning, design and realization of construction projects as well as the administration and sale of real estate.

Hirslanden Klinik Aarau AG 

Aarau · Since 1958

Hirslanden Klinik Aarau AG is a private acute hospital offering a wide range of medical services, including cardiology, abdominal surgery, urology, neurosurgery and maxillofacial surgery, oncology and orthopaedics. The hospital comprises multiple centres and institutes and provides emergency care, an intensive care unit, a maternity unit, radiology and radiotherapy services and a cardiac catheterisation laboratory.

HKG Consulting AG 

Aarau · Since 2006

HKG Consulting AG provides advisory and review services for electrical and safety engineering in construction projects. Its services include owner representation, quality assurance, expert reports, analyses, project controlling, integrated testing and energy-related analyses.

HKG Engineering AG 

Aarau · Since 1978

HKG Engineering AG is an engineering and consultancy firm for building services and electrical engineering, providing overall electrical planning and specialist services in electroengineering, building automation, building IT, security, consulting, energy and digitalization. The company works interdisciplinary and is ISO 9001 certified.

HKG Management AG 

Aarau · Since 2000

HKG Management AG is the group's management company and provides central corporate services such as finance, IT services and human resources, in addition to group-level management functions.

HL Display Schweiz AG 

Aarau · Since 1997

The company HL offers in-store communication and merchandising solutions for retail to help customers build more attractive, efficient and sustainable markets. The core activities include the development and provision of solutions for price communication, shelf management, in-store communication, advertising and security, as well as the provision of products such as scanner rails, ESL holders, carrier rails, price labels and shelf dividers.

Achtsame Hochuli Bestattungsinstitut GmbH 

Aarau · Since 2012

The core activity of Hochuli Bestattungsinstitut is the execution of funerals and the support of bereaved families. The company offers a wide range of services, including consulting, organization of funerals, sale of mourning items such as urns, coffins and jewelry, as well as the management of woodland cemeteries and other burial options.

Hochuli & Co 

Aarau · Since 1979

The core activity of Hochuli + Co Liegenschaftsverwaltung is the management and administration of real estate, including services such as rental, accounting, renovation and artisanal maintenance.

Hormonpraxis Aarau GmbH 

Aarau · Since 2013

Hormonpraxis Aarau GmbH is a specialist medical practice for endocrinology, diabetology and osteology providing outpatient assessment and treatment of hormonal and metabolic disorders. The practice performs thyroid sonography and bone densitometry (DEXA), cooperates with diabetes and nutritional counselling services, and is recognized as a training site for endocrinology/diabetology.

H & T Raumdesign AG 

Aarau · Since 1997

H & T Raumdesign AG is a carpentry and interior-construction firm that plans, manufactures and installs mobile partition systems (sliding and folding walls) and delivers interior joinery such as kitchens, doors, cabinets and bathrooms.

Huber Asbestsanierung AG 

Aarau · Since 2003

The core activity of Huber Asbestsanierung AG is the removal of health-hazardous pollutants such as asbestos, PCB (Polychlorinated Biphenyls) and PAH (Polycyclic Aromatic Hydrocarbons) as well as the control of mold. The company offers specialized services for the remediation and removal of these pollutants in various areas, including building materials, technical systems and living spaces.

Hunziker Partner AG 

Aarau · Since 2021

The company provides services in the areas of work organization, communication, and corporate culture. The core activities include: organizational workshops, business coaching, consulting, lectures, and on-the-job training. The company supports companies and employees in designing an efficient work organization, implementing digital tools, and promoting a positive work culture. It also offers specific services such as mobile working, self-orientation, and new work.

Hunziker, Zarn & Partner AG 

Aarau · Since 1997

Hunziker, Zarn & Partner AG is an engineering firm in hydraulic and water-resources engineering providing studies, project planning, construction execution and consultancy. Its specialist areas include hydrology, hydraulics, sediment transport, river morphology, flood protection, river revitalization, monitoring of revitalization measures, drone surveying and construction management.

HZP Holding AG 

Aarau · Since 2018

HZP Holding AG is an engineering consultancy for water resources and environmental engineering, providing studies, project design, execution and advisory services. Its practice areas include hydrology, hydraulics, sediment transport, morphology, flood protection, river revitalization, natural hazards, drone and terrestrial surveying, and construction supervision.

IGB Integrale Gesamtplanung für Bauerneuerung, Genossenschaft 

Aarau · Since 1998

IGB Integrale Gesamtplanung für Bauerneuerung, Genossenschaft provides integrated planning, condition analyses, energy-efficient renovations, construction management and building documentation for the renewal and preservation of existing buildings. The team of architects, planners, engineers and designers serves property managers as well as private and commercial clients and offers services such as 3D scans and virtual tours.

Illza Salii Hairdresser 

Aarau · Since 2024

The company Illza Hairdresser is a hairdressing salon specializing in hair care, individual styling experiences, hair extensions, trendy cuts, and elegant wedding hairstyles. The core activity of the company is to offer high-quality hairdressing services to customers in order to promote their well-being and beauty.

im gang eberhardt, grafik+web-design 

Aarau · Since 2024

The core activity of the company "im gang" consists of creating visual communication solutions, particularly in the areas of web design and development (websites), graphic design and production (printed materials such as logos, flyers, posters, brochures) and screen design. The company also offers services such as conception, design and implementation of print and online projects.

Immobilien AEDES Prima AG 

Aarau · Since 2024

The core activity of Immobilien AEDES Prima AG is the care and management of real estate, including the rental, administration and valuation of residential and commercial properties as well as condominium ownership.

Immobilien AEW AG 

Aarau · Since 1917

immodea solutions GmbH 

Aarau · Since 2022

Induserv (Aarau) AG 

Aarau · Since 2012

Induserv (Aarau) AG provides personnel and staffing services, including temporary work, try & hire, permanent placement, payrolling and onsite management. The company supplies specialists for sectors such as engineering & maintenance, construction, life‑sciences production, logistics and facility management.

INERATEC Schweiz AG 

Aarau · Since 2020

The core activity of INERATEC is the development and production of synthetic fuels (e-Fuels) and chemicals (e-Chemicals) using renewable hydrogen and biogenic CO2. The company manufactures modular, scalable plants that produce these synthetic products, particularly for the aviation, shipping and chemical industries.

Ingenieurbüro P. Zumbach SIA/USIC AG 

Aarau · Since 1999

Ingenieurbüro P. Zumbach SIA/USIC AG provides engineering and surveying services for building and civil infrastructure projects. Its services include structural design, road and utility construction, drainage and water engineering, 3D modelling, client advisory, project planning and construction supervision.

Ingenieure Patscheider & Partner Schweiz AG 

Aarau · Since 2022

The company "Ingenieure Patscheider & Partner GmbH" is an engineering firm specializing in various fields of expertise, including: High-rise and industrial construction, Structural engineering, geotechnics, and infrastructure and transportation systems, as well as hydraulic engineering. The company's core activities include: Planning and execution of construction projects, Consulting and accompanying clients during construction projects, Conducting feasibility and economic viability studies, Environmental impact assessments and safety planning, Numerical modeling and surveying, Cadastral and urban planning services, GIS applications and concession and financing requests, Construction management and construction management assistance, Acceptance and settlement of construction projects. Thus, the company offers comprehensive services in the field of engineering, from planning to execution of construction projects.

Institut für Agrarökologie (agroecology.science) AG 

Aarau · Since 2020

Institut für Agrarökologie (agroecology.science) AG provides scientific advisory and sustainability services for agriculture and the food sector. The institute develops practical measurement and assessment tools (including environmental, biodiversity and climate calculators), supports project development and implementation, and produces expert reports, studies and presentations.

Institut für histologische und zytologische Diagnostik AG Aarau 

Aarau · Since 2001

The core activity of the company 'Institut für histologische und zytologische Diagnostik AG' is the performance of histological and cytological examinations, particularly in the field of pathology. The company offers services such as prognostic tests and other diagnostic procedures and has a team of specialist physicians and laboratory personnel who carry out these examinations.

Intercus Schweiz GmbH 

Aarau · Since 2012

The core activity of Intercus Schweiz GmbH is the development, manufacture and distribution of medical products, particularly in the fields of urology (ProstaLund) and dermatology (DermaBox), as well as possibly other medical areas (FirstKind, Medical).

Interlens GmbH 

Aarau · Since 2010

The core activity of Interlens GmbH is to inform, supply and follow up contact lens wearers through a network of business and industrial partners, particularly through the adaptation of contact lenses and the long-term follow-up of contact lens wearers.

inter-punkt. ag 

Aarau · Since 2010

The company's core activity is the creation of communication concepts and their implementation for companies, including corporate communication, content management, advertising, film and 3D production, automation, virtual and augmented reality solutions. The company positions itself as a full-service agency that supports companies in the development and implementation of their communication strategies.