W+st Wirtschafts- Und Steuerberatungsges. Mbh

What W+st Wirtschafts- Und Steuerberatungsges. Mbh does

W+ST Wirtschafts- und Steuerberatungsgesellschaft mbH is a German professional services firm headquartered in Dillingen/Saar, founded in 1952 and organized as an owner-managed partnership (AG & Co. KG) with approximately 30 wholly-owned subsidiaries. The firm employs roughly 650 professionals across 22+ office locations in Germany and Luxembourg, led by a six-person Vorstand (Hartz, Fleury, Withum, Treib, Jung, Göricke) with Lothar W. Baum serving as Chairman of the Supervisory Board. Its core services span tax advisory, statutory and voluntary auditing, legal advisory, business consulting, and IT consulting, delivered to the German Mittelstand as well as public-sector entities, healthcare organizations, and non-profits.

The firm's technology footprint includes proprietary compliance utilities (W+ST DSGVO-APP for GDPR, Hinweisgebersystem for whistleblower channels) built on top of established partner platforms including DATEV (tax software) and hsp's Opti.Tax optimization tool, plus standard enterprise integrations. Service delivery follows a partner-led engagement model leveraging localized offices for regional client proximity. New advisory practices around NIS-2 cybersecurity, CSRD sustainability reporting, and the Hinweisgeberschutzgesetz have been established to monetize emerging EU and German regulatory demand.

Revenue mechanics rely on a mix of fixed-fee compliance work (audit, tax filings), hourly and daily rates for advisory engagements, and project-based consulting mandates. Third-party validation has come through manager magazin "Best Auditors 2026/27" (455/500 score), Handelsblatt "Best Tax Advisors" for three consecutive years, and DATEV "Digital Office 2025" for seven consecutive years, supporting brand positioning in a regulated, relationship-driven market.

Name

W+st Wirtschafts- Und Steuerberatungsges. Mbh

Legal name

W+ST Wirtschaftsprüfung AG & Co. KG Wirtschaftsprüfungsgesellschaft

Website

https://wst.de

Company type

Private

Founded year

1952

Operating status

Operating

Headcount range

501–1,000 employees

Short description

W+ST Wirtschafts- und Steuerberatungsgesellschaft mbH is a German professional services firm headquartered in Dillingen/Saar, employing roughly 650 professionals across 22+ offices in Germany and Luxembourg to deliver tax advisory, auditing, legal, and consulting services to the Mittelstand, public sector, healthcare, and non-profit segments.

Ownership category

akta.pro rank

Headquarters

HQ city

Dillingen

HQ country

Germany

HQ region

Europe

Offices22 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Tax Advisory Services: Holistic tax advisory services covering corporate and personal taxation, tax planning, and tax compliance for businesses and individuals.
2. Audit and Assurance: Auditing services including annual financial statement audits, special audits, and compliance audits for public, charitable, and mid-market companies.
3. Legal Advisory: Legal consultation services covering corporate law, commercial law, employment law, and tax law through affiliated legal entities.
4. Business Consulting: Management consulting including business planning, restructuring, sustainability reporting, and digital transformation advisory services.
5. Specialized Compliance Services: NIS-2 compliance, whistleblower systems, sustainability reporting (CSRD), packaging law compliance, EU funding audit services (CFS certificates), and tax compliance management systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels10 records

Core offering

W+ST Wirtschafts- und Steuerberatungsges. mbH is a German professional services firm providing tax consulting, auditing, legal advisory, corporate consulting, and IT advisory services. The firm complements its advisory practice with proprietary digital tools such as a Tax Compliance Management System (TCMS), a GDPR application, a whistleblower system, and Opti.Tax. Its clients are primarily German Mittelstand companies, public-sector entities, non-profit organizations, and healthcare providers.

Product overview

W+ST is a multi-service professional services group offering an integrated portfolio of tax advisory, audit, legal advisory, and business consulting services primarily for small to medium-sized enterprises (SMEs) in Germany. The firm operates as a unified group structure with specialized subsidiaries including W+ST Wirtschaftsprüfung AG & Co. KG (audit), W+ST Rechtsanwaltsgesellschaft mbH (legal), W+ST Data Security GmbH (cybersecurity/GDPR), and W+ST IT Consult GmbH (IT services). Key digital products include the W+ST DSGVO-APP for GDPR compliance automation and the Hinweisgebersystem (Whistleblower Platform) for whistleblower protection. Specialized audit services cover EU project certification (CFS), packaging law (VerpackG), and single-use plastics fund (EWKFondsG). The group also provides sustainability reporting services aligned with CSRD requirements and NIS-2 cybersecurity compliance services. All services leverage the DATEV accounting ecosystem and the Opti.Tax software for tax compliance management.

Differentiator

Problem solved

Functional benefit

Brands

• W+ST DSGVO-APP: A GDPR/Data Protection management application offered by W+ST to help companies achieve data protection compliance with minimal effort.
• W+ST Hinweisgebersystem

Products and services

• Tax Consulting Services Advisory services covering corporate and personal tax matters, including tax structuring, compliance, and optimization for German businesses and institutions.
• Audit and Assurance Services Statutory and voluntary audit services for companies, public-sector entities, and non-profit organizations, including financial statement audits and assurance engagements.
• Legal Advisory Services Legal advisory within the scope of the professional services firm, supporting clients on regulatory and corporate legal matters.
• Corporate Consulting Services Strategic and corporate consulting engagements covering transactions, restructuring, and organizational matters for businesses and institutions.
• IT Advisory Services Advisory on IT-related topics such as digital compliance, system selection, and process optimization, complementing the firm's tax and audit practice.
• Tax Compliance Management System (TCMS) Digital tool for managing tax compliance documentation and workflows, used by clients to support their tax compliance processes.
• W+ST DSGVO-APP Application supporting GDPR (DSGVO) compliance activities, used by clients to document and manage data protection requirements.
• Whistleblower System Digital whistleblower reporting solution enabling compliant internal reporting channels for organizations.
• Opti.Tax Tax optimization tool referenced as part of the firm's digital product suite, supporting tax-related analysis for clients.

Quantifiable outcome

• Ranked among Germany's best auditors 2026/27 by manager magazin with 455 out of 500 points in Mittelstand category
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

Feature3 records

Partnerships

Two partnerships are on record, tiered core and minor.

• hsp Handels-Software-Partner GmbHcoreTechnology or IntegrationTechnology partnership for Tax Compliance Management System (TCMS) implementation. W+ST uses hsp's Opti.Tax software as the operational platform for implementing TCMS for clients. The partnership enables efficient documentation and management of tax compliance systems.
• FBO GmbHminorImplementation/ SI/ Consulting PartnerMarketing and digital business partner responsible for concept, design, and implementation of the W+ST website and digital presence.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Grant Thornton Germany: International mid-market audit and advisory firm with German operations targeting Mittelstand and family businesses; comparable in scale and client profile to W+ST.
• Baker Tilly Germany: German member of Baker Tilly International providing audit, tax and consulting services to mid-market companies; comparable client segment and service portfolio to W+ST.
• Ebner Stolz: One of Germany's largest independent audit/tax/legal advisory firms focused on mid-market and family-owned Mittelstand companies; competes head-to-head with W+ST across the same integrated service lines and regional SME client base.
• Mazars Germany: International audit, tax and advisory network with a substantial German practice serving mid-sized and large companies; competes with W+ST in audit, tax advisory and sustainability/CSRD services.
• Rödl & Partner: German-origin multidisciplinary advisory firm (tax, legal, audit, consulting) serving mid-market and family businesses across Germany and internationally; overlaps directly with W+ST's Mittelstand-focused integrated offering.
• BDO Germany: German arm of the BDO international accounting network providing audit, tax and advisory services to mid-sized companies; directly competes with W+ST for Mittelstand clients and the same compliance/CSRD advisory mandates.
• RSM Germany (RölfsPartner): Mid-market focused audit, tax and consulting firm in Germany (part of RSM International), with strong presence in Mittelstand advisory and overlapping compliance/CSRD service lines with W+ST.
• HLB Germany (formerly HLB Deutschland): German accounting and advisory network with a strong mid-market focus, providing tax, audit and consulting services comparable to W+ST's core offering.

Emerging players

• ETL Steuerberatung: Large German tax advisory franchise/cooperative structure serving small businesses and Mittelstand; competes in similar tax advisory and accounting services with a different franchise model.

Others

• DATEV: German IT cooperative providing accounting, tax, payroll and ERP software used by W+ST and its clients; adjacent ecosystem participant whose software both enables and threatens traditional advisory work.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xxing.com/pages/w-stwirtschaftsprufungag-co-kg
• YouTubeyoutube.com/@w-stwirtschaftsprufung8649
• Facebookfacebook.com/wst.de
• LinkedInde.linkedin.com/company/w-st-wirtschaftspr-fung-ag-co-kg-wpg
• Instagraminstagram.com/wstkarriere

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries31 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 W+st Wirtschafts- Und Steuerberatungsges. Mbh