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Promag AG 

Aarau · Since 1983

The core activity of Promag AG is the development, manufacture and distribution of cleaning agents and equipment, in particular industrial cleaners and stabilized aqueous ozone cleaning solutions.

Promantec AG 

Aarau · Since 2023

The core activity of Promantec AG is the development and provision of IT solutions for the construction and real estate industry, particularly in Switzerland. This includes: the development of specific software solutions for construction companies, planning offices and public institutions; the creation of individual software solutions for customers in the construction and real estate industry; the provision of add-ons and extensions for standard software such as Microsoft Project to support scheduling and cost planning in construction project management; and the development of web-based tools such as X-Bau to facilitate time reporting on construction sites and support work preparation and visualization of schedules.

RAILplus AG 

Aarau · Since 2013

The company's core activity is the development and provision of solutions and services for the rail industry, particularly in the areas of rail head conditioning, wheel flange lubrication, wheel-rail interaction, track stiffness and vehicle safety. The company also offers training, education and knowledge modules for specialists and is involved in research and development projects in the rail industry.

Randstad (Schweiz) AG 

Aarau · Since 1989

Randstad (Schweiz) AG provides recruitment and staffing services for employers and candidates, including permanent placement, temporary assignments, try & hire, contract roles and payrolling. The company also offers HR solutions such as managed services, outsourcing and master-vendor arrangements and specialises in operational, professional and digital talent areas.

Reana Transport GmbH 

Aarau · Since 2022

The company's core activity is goods transport and logistics, including the planning and management of transport processes, as well as complementary services such as pallet trading and recycling.

REIST PARTNER AG 

Aarau · Since 1991

REIST PARTNER AG is a fiduciary services firm offering audit, tax and trust services to small and medium-sized enterprises and private clients. Its services include accounting and WebAccounting, payroll and personnel administration, tax advisory, corporate consulting, board mandates, statutory audits and real estate services.

saa ag 

Aarau · Since 2003

saa ag is a construction and trade company offering plastering, painting and drywall services as well as facade rendering and insulated external wall systems. The company executes renovations and refurbishments, provides project management and works on residential, commercial and public-sector projects.

SANTEC Systems AG 

Aarau · Since 2019

The company's core activity is the online sale of products in the fields of lighting, energy efficiency and smart home, particularly LED lighting, solar energy and mobility solutions, as well as the provision of services and consulting in these areas.

Savoy Treuhand AG 

Aarau · Since 2007

Savoy Treuhand AG provides audit, tax and fiduciary services along with business advisory services for self-employed individuals, small and medium-sized enterprises, and private clients. Services include limited and statutory audits, special audits (e.g., formation, restructurings, mergers, liquidations), accounting, payroll, tax return preparation, VAT filings and financial advisory. The firm is a member of EXPERTsuisse and is a licensed audit expert.

Schaltpunkt GmbH 

Aarau · Since 2014

The core activity of Schaltpunkt GmbH is the planning, implementation and maintenance of projects in the field of renewable energies, particularly in the areas of photovoltaics, smart grids and smart engineering. The company offers individual solutions to customers to make energy controllable and renewable, and focuses on the implementation of projects such as photovoltaic systems, battery storage systems, smart homes and smart buildings.