Treuhand Marcel Widmer AG

What Treuhand Marcel Widmer AG does

Treuhand Marcel Widmer AG is a privately held Swiss professional services firm (Aktiengesellschaft) founded in 1990 by Marcel Widmer and headquartered at Neudorfstrasse 4 in Reinach, canton Aargau. It delivers an integrated suite of fiduciary, accounting, statutory audit, tax consulting, business consulting, and payroll administration services to small and medium-sized enterprises (KMU) and private individuals. Its core geographic focus is the Swiss Mittelland — Wynental, Seetal, Freiamt, Ruedertal, and Michelsamt — with additional activity across Switzerland, border-near foreign countries, and English-speaking international regions.

The firm's product offering is organized into five service lines: Rechnungswesen & Buchhaltung (financial accounting, VAT/AHV/sUVA/UVG/BVG settlements, controlling, interim CFO), Wirtschaftsprüfung (statutory and special audits, due diligence, valuations), Steuerberatung (tax returns, planning, appeals, representation), Treuhand & Unternehmensberatung (formation, restructuring, succession, board mandates, valuations), and Lohnadministration (payroll, social security declarations, BVG advisory). Delivery relies on certified Swiss professionals — including zugelassene Revisionsexperten registered with RAB (number 503188), Dipl. Wirtschaftsprüfer, and Dipl. Betriebsökonomen — supported by standard cloud accounting platforms (Topal, CashCtrl, Bexio) and TeamViewer for remote support.

The business model is classic professional services: relationship-led, direct client engagement, with fees calculated on hourly rates per the firm's AGB. Pricing is not publicly disclosed; estimates are non-binding and exclude VAT. The GTM motion is sales-led and personal ("Wir sind persönlich für Sie da"), with appointments available outside business hours. The firm was converted to an AG in 2008, and in 2020 ownership and management passed to long-term employees Beat Brunner and Adrian Widmer (majority), with Hansjörg Gafner as additional partner; founder Marcel Widmer retained an advisory role. The firm is privately held with no external investors, no funding rounds, and no subsidiaries.

Name

Treuhand Marcel Widmer AG

Legal name

Treuhand Marcel Widmer AG

Website

https://treuhandwidmer.ch

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

1–10 employees

Short description

Treuhand Marcel Widmer AG is a Swiss fiduciary firm in Reinach providing accounting, statutory audit, tax, business consulting, and payroll services to SMEs and private individuals across the Swiss Mittelland and internationally.

Ownership category

akta.pro rank

Product category

Trust, Accounting, and Auditing Services

NAICS

Trusts, Estates, and Agency Accounts (525920), Funds, Trusts, and Other Financial Vehicles (525)

SIC

Finance Services (6199), Services-Management Consulting Services (8742)

akta.pro primary industry

Fiduciary Agency & Trustee-for-Hire Services (FSAAANAL)

akta.pro secondary industry

Personal Trust & Fiduciary Administration (FSAEAKAA)

Keywords

• Trust and accounting services
• Statutory audit services
• Tax consulting services
• Business consulting services
• Payroll administration services

Headquarters

HQ city

Reinach

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Professional Services (Treuhand): The company generates revenue through professional services including accounting and bookkeeping (Rechnungswesen & Buchhaltung), auditing (Wirtschaftsprüfung), tax consulting (Steuerberatung), fiduciary and business consulting (Treuhand & Unternehmensberatung), and payroll administration (Lohnadministration). Billing is primarily based on hourly rates according to their AGB, with services rendered either on a project basis or ongoing retainer. The AGB states that fees are based on applicable hourly rates and actual time spent, with cost estimates provided for project work.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Treuhand Marcel Widmer AG is a Swiss trust and accounting firm providing financial accounting and bookkeeping, statutory auditing, tax consulting, trust and business consulting (including company formation, restructuring, succession planning, and board mandates), and payroll administration services. The firm serves small to medium-sized enterprises (KMU) and private individuals across the Swiss Mittelland region and internationally, delivering its services through personal consultations and direct client engagement.

Product overview

Treuhand Marcel Widmer AG offers a unified suite of trust and financial services organized into five interconnected service lines. The core offering comprises Rechnungswesen & Buchhaltung (accounting and financial management), Wirtschaftsprüfung (statutory auditing), Steuerberatung (tax consulting), Treuhand & Unternehmensberatung (trust and business consulting), and Lohnadministration (payroll administration). These services are delivered as an integrated offering under the Treuhand Marcel Widmer AG brand, targeting small to medium-sized enterprises (KMU) in the Swiss Mittelland region, cross-border areas, and private individuals.

Differentiator

Problem solved

Functional benefit

Products and services

• Rechnungswesen & Buchhaltung (Financial Accounting & Bookkeeping) Financial accounting and bookkeeping services for SMEs, including setup and management of financial and operational ledgers, VAT/AHV/sUVA/UVG/BVG settlements, annual and interim financial advice, financial and liquidity planning, budget/plan accounts, controlling projects, consolidated financial statements, interim CFO services, and on-site staff support.
• Wirtschaftsprüfung (Statutory Auditing) Statutory audit services for annual accounts under Swiss Obligationenrecht standards, including limited and ordinary audits of corporations (AG, GmbH, cooperatives), foundations, consolidated financial statements, special audits (incorporation, capital increases/reductions, liquidations, relocations, M&A), due diligence, valuations, and municipal account audits.
• Steuerberatung (Tax Consulting) Tax consulting services for individuals and legal entities, including tax closing advice, preparation of tax returns, strategic and operational tax planning, assessment and invoice verification, objections and appeals, VAT advice, representation before tax authorities, succession-related tax planning, VAT representation for foreign companies, inter-period tax returns, property gains tax, and tax-optimized retirement planning.
• Treuhand & Unternehmensberatung (Trust & Business Consulting) Trust and business consulting services including company formation, conversion, merger, and liquidation; management and administration of holding and participation companies; board of directors and liquidator mandates; articles of association and shareholders' agreements; succession planning; tax-optimized financial and retirement planning; corporate and financial planning; personnel administration; insurance matters; company sale and purchase; inheritance community support; business valuations; registered office representation; and restructuring, insolvency, and bankruptcy proceedings.
• Lohnadministration (Payroll Administration) Payroll processing and administration services including setup and management of payroll accounting, salary administration, annual declarations (AHV, UVG, KTG, BVG, QST, etc.), employment contracts, social security audit support, correspondence/reports to social security authorities, legal questions in personnel matters, BVG pension advice, and international employment relationships.

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core.

• TreuhandSuissecoreOthersProfessional association membership ensuring compliance with professional standards and access to industry resources, continuing education, and networking opportunities for Swiss trust and accounting professionals.
• ExpertSuissecoreOthersIndividual memberships held by team members in the expert association for auditing, tax, and fiduciary professionals in Switzerland.
• Revisionsaufsichtsbehörde (RAB)coreOthersRegulatory authorization as certified audit experts (zugelassene Revisionsexperten) with RAB registration number 503188, required for providing statutory audit services in Switzerland.

Scale indicators3 records

Recent moves8 records

Expansion highlights3 records

Broad incumbents

• BDO AG Switzerland: BDO Switzerland is the Swiss member of BDO Global, offering audit, tax, fiduciary and accounting services to SMEs and mid-market clients across Switzerland. Comparable because it competes directly in the same Treuhand/audit/tax space, particularly for KMU clients, but at substantially greater scale and geographic reach.
• KPMG Switzerland: KPMG AG is one of the Big Four in Switzerland, providing audit, tax and advisory services. Comparable because it serves the same Swiss KMU and private-client segments at the upper end, although at far greater scale and with a wider geographic and enterprise-client footprint.
• Deloitte Switzerland: Deloitte AG is one of the Big Four in Switzerland, with audit, tax, consulting and financial advisory practices serving SMEs through to large corporates. Comparable for the same fiduciary, audit and tax service categories, though at a much larger scale and broader portfolio.
• EY Switzerland: Ernst & Young Switzerland provides audit, tax, transaction and advisory services to a broad client base including SMEs. Comparable for the audit/tax/fiduciary overlap with Treuhand Marcel Widmer AG, though EY serves a much broader client mix and operates at far greater scale.
• PwC Switzerland: PwC Switzerland (PricewaterhouseCoopers) is a Big Four firm providing audit, tax and advisory services in Switzerland. Comparable for the overlap in Treuhand, Wirtschaftsprüfung and Steuerberatung offerings to SMEs and private clients, though it operates at significantly larger scale.

Direct peers

• Mazars Switzerland: Mazars Switzerland offers audit, tax, accounting and advisory services with a strong focus on owner-managed businesses and SMEs. Directly comparable as a mid-tier competitor serving similar Swiss SME clients with the same integrated service-line structure.
• RSM Switzerland: RSM Switzerland provides audit, tax, fiduciary and consulting services to SMEs and mid-market companies. Comparable as a mid-tier Swiss audit/accounting firm with similar service portfolio and KMU client focus.
• Grant Thornton Switzerland: Grant Thornton Switzerland provides audit, tax, accounting and advisory services focused on mid-market and SME clients in Switzerland. Highly comparable to Treuhand Marcel Widmer AG in target customer (Swiss KMU), service mix (audit, tax, fiduciary, accounting) and mid-tier positioning.

Emerging players

• Run my Accounts AG: Run my Accounts is a Swiss online accounting and outsourcing firm serving SMEs with digital bookkeeping, payroll and financial reporting. Comparable as a technology-enabled competitor in the SME accounting and payroll space where Treuhand Marcel Widmer AG operates, offering an alternative to traditional Treuhand services.
• Bexio AG: Bexio is a leading Swiss cloud accounting and business management SaaS platform targeting KMU. Comparable because it is one of the technology platforms the firm recommends to its SME clients, and competes for the same bookkeeping and administrative workflows that anchor the firm's Rechnungswesen & Buchhaltung service line.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/treuhand-marcel-widmer-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Treuhand Marcel Widmer AG