Fiduciary Offices in
Mellingen

21 companies in Fiduciary Offices based in Mellingen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 21 companies in Mellingen

Frohsinn Invest AG Logo

Frohsinn Invest AG

Since 2011 · 1–10 empl.5.0(7)

Frohsinn Invest AG provides fiduciary and accounting services, tax consulting, property management, audits and assistance with company formations.

Fiduciary OfficesAccounting and ControllingTax advisoryReal estate
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #1
Frohsinn Treuhand GmbH Logo

Frohsinn Treuhand GmbH

Since 2011 · 1–10 empl.5.0(7)

Frohsinn Treuhand GmbH provides fiduciary and accounting services for businesses. Its services include bookkeeping and controlling, tax advisory, property management, audits and company formation; the owner-managed, independent firm primarily serves small and medium-sized enterprises and collaborates with partners.

Fiduciary OfficesAccounting and controllingTax advisoryAudits and financial audits
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
Karpf, Brack & Partner AG Logo

Karpf, Brack & Partner AG

Since 1985 · 1–10 empl.

The core activity of Karpf, Brack & Partner AG is the provision of trust services, particularly in the areas of: * Accounting * Payroll * Taxes * Corporate consulting. The company offers consulting, support and guidance on financial, tax and business management challenges.

Fiduciary OfficesBookkeepingTax advicePayroll services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
GroWe Treuhand AG Logo

GroWe Treuhand AG

Since 2013 · 1–10 empl.

The core activity of Growe Treuhand AG is the provision of trust services, particularly in the areas of: * Tax consulting and planning * Corporate consulting and formation * Financial and accounting services, including bookkeeping and financial statement consulting * Personnel administration and payroll accounting * Economic and corporate consulting, including formations, transformations, restructurings, mergers, reorganizations, and liquidations * Domiciliary and administrative services. Thus, the company offers a comprehensive range of services for companies and individuals focused on finance, taxes, law, and administration.

Fiduciary OfficesTrust and AccountingTax AdvisoryBusiness Consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Treuhand 360 Grad AG Logo

Treuhand 360 Grad AG

Since 2019 · 1–10 empl.

The core activity of Treuhand 360° AG is the provision of services in the field of finance and accounting, particularly: accounting, taxes, and consulting. The company offers individual and competent consulting for clients and supports them in financial and accounting matters.

Fiduciary OfficesAccountingTaxationPayroll/Personnel
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
Effida Treuhand und Revisionen AG Logo

Effida Treuhand und Revisionen AG

Since 2014 · 1–10 empl.5.0(1)

The core activity of Effida Treuhand & Revisionen AG encompasses auditing, fiduciary services and corporate consulting, including services such as auditing, tax consulting, real estate management, accounting, controlling and financing.

Fiduciary OfficesFinancial auditingTrust and advisoryTax and legal
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #6
MK-Treuhand GmbH Logo

MK-Treuhand GmbH

Since 2014 · 1–10 empl.4.0(4)

The core activity of MK-Treuhand GmbH is the provision of services in the field of finance and accounting, particularly: financial accounting and payroll accounting, tax consulting and preparation of tax returns, financial planning and pension planning, corporate consulting and succession planning, audits and financial statement audits, company formations and support for the formation of companies. The company thus offers a comprehensive range of services for companies and individuals in the field of finance and accounting.

Fiduciary OfficesCompany formationsFinancial accountingTax advisory
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #7
Zebru GmbH Logo

Zebru GmbH

Since 1996 · 1–10 empl.

The company's core activity is the provision of services in the fields of tax consulting, trust and accounting. This includes in particular: Tax consulting: preparation of tax returns, tax calculations, negotiations with tax authorities and obtaining tax rulings; Trust: management of accounting, account reconciliations, annual closing work, preparation of tax returns and value-added tax returns; Accounting: accounting services, preparation of account plans, management of property tax departments and property tax consulting; Additional services: coaching, personal coaching, goal-finding processes, conflict resolution, debt collection, representation in court and resolution of neighborhood problems.

Fiduciary OfficesFiduciary servicesTaxesBusiness consulting
No score yet
DG

D. Grolimund, Revisionen, Steuer- und Wirtschaftsberatung

Since 1990 · 1–10 empl.

Fiduciary Offices
No score yet
TU

Treuhand- und Steuerberatungsbüro Martin Koller

Since 1990 · 1–10 empl.

Fiduciary Offices
No score yet
MB

Margrit Brack Treuhand

Since 1991 · 1–10 empl.

Administrative Services
No score yet
DD

DWT Dieter Weisskopf Treuhand

Since 1993 · 1–10 empl.

Fiduciary Offices
No score yet

Fiduciary Offices in Mellingen

21Fiduciary OfficesCommercial register (Zefix) · as of October 10, 2026
2013Median year of registrationCommercial register (Zefix) · as of October 10, 2026
957in the Canton of AargauCommercial register (Zefix) · as of October 10, 2026
17,182in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Fiduciary Offices in the region

Point size by number of companies per place.

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