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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.