A&O Kreston Audit

What A&O Kreston Audit does

A&O Kreston Audit (legal name: a&o kreston ag) is a Swiss trust, audit, and advisory firm founded in 1946 and headquartered in Baar (canton of Zug), with additional offices in Wettingen (canton of Aargau) and Zürich. The company operates as a private Aktiengesellschaft employing 51–100 staff, including over 30 qualified specialists covering auditing, fiduciary services, taxes, national and cross-border VAT, and HR/payroll and social insurance administration.

The firm delivers a comprehensive suite of professional services organized around ten core offerings: financial and accounting services (monthly, quarterly, and annual financial statement preparation), tax and legal advisory (planning, restructuring, M&A tax, reorganizations), statutory and consolidated auditing, Swiss and cross-border VAT consulting, HR/payroll administration, business and corporate consulting (formation, legal structure advice, liquidation), succession planning, professional board services, fiscal representation, and traditional fiduciary services. Underlying delivery relies on standard accounting, tax, and auditing software and methodologies rather than proprietary technology. The firm also runs a recurring education program — seminars on VAT, accounting, and taxation, including a certified international VAT expert program delivered with WEKA/HWZ — used as both a marketing and client engagement channel.

A&O Kreston operates as an independent member of Kreston Global, a London-headquartered worldwide network of 160 trust and accounting firms with 25,000+ professionals across 115 countries; the network was founded in 1971 and ranks as the 13th largest auditing network globally. This network membership is the firm's primary mechanism for delivering international cross-border VAT, fiscal representation, and multi-jurisdiction tax services. The firm maintains additional professional memberships in Expert Suisse, Treuhand|Suisse, and the Forum of Firms (an international forum for transnational auditing quality standards). In July 2021, a&o kreston merged with Confia Group, expanding service breadth and headcount.

Revenue is generated exclusively through professional services fees billed on standard hourly rates or fixed project fees for accounting, financial statement preparation, tax and legal consulting, auditing, HR/payroll services, VAT consulting, and succession planning. No pricing tiers are publicly disclosed. The go-to-market is direct-to-client professional services sales delivered through the four Swiss offices, supported by a website (kreston.ch), a Mailchimp newsletter, professional seminars and congresses (Fachkongress Rechnungswesen und Steuern, MWST-Kongress), and the annual 'kreston forum für wissen und dialog'. Target customer segments are Swiss companies (primary), international clients with Swiss or cross-border needs (primary), and high-net-worth individuals (secondary). The firm does not disclose revenue, headcount changes, or ownership details beyond its network affiliation.

Name

A&O Kreston Audit

Legal name

a&o kreston ag

Website

https://ao-kreston.ch

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

51–100 employees

Short description

A&O Kreston Audit is a Swiss fiduciary, audit, and tax advisory firm headquartered in Baar with offices in Zürich and Wettingen, serving Swiss companies, international clients, and high-net-worth individuals through its Kreston Global network membership.

Ownership category

akta.pro rank

Product category

Audit & Tax Advisory Services

NAICS

Offices of Certified Public Accountants (541211), Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412), Management Consulting Services (54161)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)

akta.pro primary industry

Audit & Assurance Services (BPAHABAA)

akta.pro secondary industries

Family Office Administration & Operations (Accounting, Reporting, Payroll) (FSAAADAD), Estate Planning & Trust Structuring Advisory (FSAEAKAC)

Keywords

• Audit services
• Tax advisory
• Fiduciary services
• Payroll administration
• Financial accounting

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services Fees: Fees charged for fiduciary services including accounting, financial statement preparation, tax and legal consulting, auditing, HR and payroll services, VAT consulting, and succession planning.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

A&O Kreston Audit (a&o kreston ag) is a Swiss fiduciary firm delivering professional services across financial accounting, tax and legal advisory, auditing, HR and payroll administration, VAT consulting (domestic and cross-border), succession planning, business consulting, board services, and traditional fiduciary activities. The firm also offers professional education seminars on VAT, accounting, and tax topics.

Product overview

A&O Kreston Audit operates as a Swiss trust and advisory firm offering a comprehensive suite of professional services rather than a software product platform. The core offerings include Financial & Accounting services, Tax & Legal Advisory, VAT Consulting (both Swiss and cross-border), Auditing, HR/Payroll Services, Business Consulting, Succession Planning, Board Services, and Fiduciary Services. Additionally, the firm provides professional education seminars on topics including VAT, accounting, and taxation. The services are delivered through four offices in Switzerland (Zürich, Baar, and Wettingen) as a unified advisory offering rather than modular software products.

Differentiator

Problem solved

Functional benefit

Products and services

• Financial & Accounting Services (Finanz- & Rechnungswesen)

Quantifiable outcome

• Customer satisfaction rating: 4.4 out of 5 stars

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered flagship, core and minor.

• Kreston GlobalflagshipStrategic or Co-development Partner · 1 January 1971A&O Kreston is an independent member of Kreston Global, a worldwide network of independent trust/accounting firms headquartered in London. The network comprises 160 firms with over 25,000 professionals in 115 countries. The network was founded in 1971.
• Expert SuissecoreStrategic or Co-development PartnerSwiss professional association for experts in auditing, accounting, and tax. Membership provides industry credibility and access to professional standards and training.
• Treuhand|SuissecoreStrategic or Co-development PartnerSwiss professional association for trust and fiduciary services. Membership supports professional development and networking within the Swiss trust industry.
• Forum of FirmsminorStrategic or Co-development PartnerInternational forum of firms involved in transnational auditing. Member firms commit to quality standards for international audit engagements.
• Tschumi + Partner Treuhand AGminorStrategic or Co-development PartnerSwiss partner firm shown in network logos section
• a&o BusinesscenterminorStrategic or Co-development PartnerBusiness center partner for additional business services
• Come To SwitzerlandminorGTM or Marketing PartnerMarketing partner helping promote Switzerland as a business location

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• RSM Switzerland: RSM Switzerland is a mid-tier global audit and advisory network serving Swiss SMEs and mid-market clients. Closely comparable to A&O Kreston in size, SME focus, service breadth (audit, tax, accounting, advisory), and dependence on an international network for cross-border work.
• Grant Thornton Switzerland: Grant Thornton Switzerland is a mid-tier international audit and advisory firm serving Swiss mid-market and SME clients. Comparable to A&O Kreston in network affiliation, target customer base, and the integrated delivery of audit, tax, and advisory services.
• Mazars Switzerland: Mazars Switzerland is a mid-sized international audit, tax, and advisory network with offices across Switzerland. Directly comparable to A&O Kreston in service mix (audit, tax, accounting, advisory for SMEs), positioning in the mid-market, and reliance on an international network.
• PKF Switzerland: PKF Switzerland is an international audit, tax, and advisory network with Swiss presence serving SMEs and mid-market clients. Highly comparable to A&O Kreston in positioning, service mix, and reliance on a global network to deliver cross-border capabilities.
• Baker Tilly Switzerland: Baker Tilly Switzerland is a mid-tier international accounting, audit, and advisory network with Swiss offices. Directly comparable to A&O Kreston in customer profile (Swiss SMEs, family-owned businesses), service portfolio, and use of a global network for cross-border engagements.

Broad incumbents

• BDO Switzerland: BDO Switzerland is a top-tier Swiss audit, tax, and advisory firm with national coverage including German-speaking Switzerland. Comparable to A&O Kreston across audit, tax, accounting, and SME advisory services, but at materially larger scale and with broader industry specializations.
• PwC Switzerland: PwC Switzerland is a Big Four firm providing audit, tax, and advisory services nationally. Comparable in core service lines (audit, tax, accounting advisory) but targets a broader client base including large enterprises and operates at far greater scale than A&O Kreston.
• Deloitte Switzerland: Deloitte Switzerland is a Big Four professional services firm offering audit, tax, consulting, and financial advisory across Switzerland. Comparable in audit and tax service lines, but competing for larger clients and operating at scale well beyond A&O Kreston's SME focus.
• EY Switzerland: EY Switzerland is a Big Four audit, tax, transaction, and advisory firm with nationwide Swiss coverage. Overlaps with A&O Kreston in audit, tax compliance, and SME advisory but with vastly greater scale, broader service portfolio, and enterprise-grade delivery capability.
• KPMG Switzerland: KPMG Switzerland is one of the Big Four audit and advisory firms operating across all major Swiss economic centers. Overlaps with A&O Kreston across audit, tax, and advisory services, but operates at materially larger scale with broader industry specialization and enterprise focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 A&O Kreston Audit