Administrative Services in
Aarau

13 companies in Administrative Services based in Aarau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 13 companies in Aarau

Bachofner Consulting GmbH Logo

Bachofner Consulting GmbH

Since 2007 · 1–10 empl.

The core activity of BACHOFNER CONSULTING GMBH is the provision of services in the fields of finance and controlling, property management, as well as editing and publishing.

Administrative ServicesManagement of Swiss Trade Associations and Non-profit OrganisationsFinance & ControllingProperty Management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
MDSS CH GmbH Logo

MDSS CH GmbH

Since 2021 · 1–10 empl.

MDSS CH GmbH is an Authorized Representative (CH-REP) for medical devices and in vitro diagnostic devices, serving as the formal contact for competent authorities and overseeing registration, vigilance reporting and other regulatory compliance tasks.

Administrative ServicesSwiss Authorized Representative (CH-REP)Free Sales Certificate (FSC / CFS)National product registration
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Gustav Lienhard AG Logo

Gustav Lienhard AG

Since 1986 · 1–10 empl.

The company's core activity is the provision of notarial and legal services, particularly in the following areas: Notary: preparation of contracts, authentications and other notarial activities; Legal advice: advice on legal matters, particularly in the areas of real estate law, inheritance law, family law, tenancy law, corporate law and commercial law. Attorney-at-law and notary Gustav Lienhard offers these services to private individuals and companies.

Administrative Services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
REIST PARTNER AG Logo

REIST PARTNER AG

Since 1991 · 1–10 empl.5.0(1)

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.

Administrative ServicesBookkeepingTax ConsultingBusiness Consulting
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #4
colibri people AG Logo

colibri people AG

Since 2026 · 21–50 empl.

colibri people AG is a recruitment and staffing company focused on placing skilled professionals, especially in the electrical sector. The company provides personnel recruitment, selection processes, temporary staffing, retained search, workforce management, and consulting support.

Administrative ServicesPersonnel placementRecruitment and selectionTemporary staffing
ranQ Trust Score 3.6 out of 5.0, rated Solid, Rank #5
converba GmbH Logo

converba GmbH

Since 2026 · 1–10 empl.

converba GmbH supports associations, federations and other organisations with association management, communication, event organisation and moderation, as well as political campaigns. The company also offers historical research services and mandates on foundation and board of directors.

Administrative ServicesAssociation ManagementEvent Organisation and ModerationPolitical Campaigns
ranQ Trust Score 3.4 out of 5.0, rated Solid, Rank #6
Tanner Backoffice GmbH Logo

Tanner Backoffice GmbH

Since 2015 · 1–10 empl.

The core activity of Tanner BackOffice GmbH is the takeover and execution of back-office tasks for other companies, particularly SMEs, non-profit organizations, associations and federations. This includes, among other things: Management consulting, Operational management, Administration, Secretarial services, Accounting, Marketing, Creation and maintenance of websites. The company thus offers comprehensive services to support and relieve companies in their administrative and commercial tasks.

Administrative ServicesBack-office services
No score yet
Class4U GmbH Logo

Class4U GmbH

Since 2017 · 1–10 empl.

The core activity of Class4U GmbH is professional and competent management assistance on demand. The company provides support to boards of directors, CEOs, C-level managers, family offices, foundations, NGOs, entrepreneurs and others by taking over administrative tasks, project work and personal assistance. The services can be used on short notice and without significant administrative effort, both full-time and part-time.

Administrative ServicesOn-demand management assistancePersonal assistance for boards of directors, CEOs and executives
No score yet
OA

OFFICE ASSISTANT Nicole Bella

Since 2017 · 1–10 empl.

Administrative Services
No score yet
PR

Pay Rolling Company GmbH

Since 2017 · 1–10 empl.

Administrative Services
No score yet
OC

office collab gmbh

Since 2017 · 1–10 empl.

Administrative Services
No score yet
BB

BK Benefit GmbH

Since 2018 · 1–10 empl.

Administrative Services
No score yet

Administrative Services in Aarau

13Administrative ServicesCommercial register (Zefix) · as of October 10, 2026
2017Median year of registrationCommercial register (Zefix) · as of October 10, 2026
286in the Canton of AargauCommercial register (Zefix) · as of October 10, 2026
4,902in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Administrative Services in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026