What FACT does

FACT GmbH Wirtschaftsprüfungsgesellschaft is a German professional services firm founded in 2007 and headquartered in Kassel, with additional offices in Nünchritz and Großenhain. It delivers an integrated portfolio of tax advisory (Steuerberatung), auditing (Wirtschaftsprüfung), and legal advisory (Rechtsberatung) services through interdisciplinary teams of certified tax advisors, auditors, and lawyers, supplemented by specialized practices in M&A, corporate finance, IT systems audit, CSRD/ESRS sustainability reporting, and business advisory. The firm operates through three legal entities: the audit firm (FACT GmbH Wirtschaftsprüfungsgesellschaft), a law firm subsidiary (FACT Rechtsanwaltsgesellschaft mbH), and a technology consulting subsidiary (FACT Technologieberatung GmbH).

The business model is a relationship-led professional services model with quote-based, engagement-scope billing. Services are delivered directly through personal consultation by named professional contacts at the firm's offices, augmented by the GGI Geneva Group International alliance for cross-border mandates in 120+ countries. Client segments span German Mittelstand and family-owned businesses, internationally active companies, start-ups and e-commerce players, public sector entities, non-profits, and private clients, with a horizontal segmentation approach that diversifies exposure across industries and engagement types.

The firm is owner-managed (inhabergeführt) by 11 Managing Directors across the audit and legal entities, with no external private equity or venture capital backing. It employs 90+ professionals, holds recurring Handelsblatt Top Tax Advisors / Top Auditors recognition for nine consecutive years (2018–2026), and achieved DATEV Digital Firm 2025 certification. Technology infrastructure centers on DATEV for accounting/tax workflows, with standard marketing and analytics tooling (Google Analytics, Google Ads, LinkedIn, Borlabs Cookie, TranslatePress) supporting client acquisition.

Name

FACT

Legal name

FACT GmbH Wirtschaftsprüfungsgesellschaft

Website

https://fact-ks.de

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

FACT GmbH Wirtschaftsprüfungsgesellschaft is a Kassel-based, owner-managed German professional services firm delivering integrated tax advisory, auditing, and legal services through 90+ professionals, serving Mittelstand, family businesses, international companies, public institutions, and private clients with cross-border reach via the GGI network.

Ownership category

akta.pro rank

Product category

Professional Services (Audit, Tax & Legal Advisory)

NAICS

Offices of Certified Public Accountants (541211), Professional, Scientific, and Technical Services (54), Other Accounting Services (541219)

SIC

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

akta.pro primary industry

Audit & Assurance Services (BPAHABAA)

Keywords

• Tax advisory services
• Statutory auditing services
• Legal advisory services
• Mergers and acquisitions advisory
• Sustainability reporting CSRD

Headquarters

HQ city

Kassel, Hessen

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Advisory Services: Revenue generated from providing tax advisory, auditing, legal advisory, business advisory, and corporate finance services to clients. Services include recurring advisory mandates, project-based consulting, and statutory audit engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

FACT GmbH Wirtschaftsprüfungsgesellschaft is an interdisciplinary professional services firm providing tax advisory, auditing, and legal advisory services alongside specialized offerings in international advisory, M&A, IT systems audit, sustainability reporting, corporate finance, and business consulting. The firm delivers these services through integrated teams of auditors, tax advisors, and lawyers to family businesses, Mittelstand, public institutions, and internationally active companies, supported by the GGI Geneva Group International network spanning 120+ countries.

Product overview

FACT GmbH is an interdisciplinary advisory firm offering a unified portfolio of professional services under one roof. The core offering consists of three interconnected service lines: Tax Advisory (Steuerberatung), Auditing (Wirtschaftsprüfung), and Legal Advisory (Rechtsberatung), supplemented by six specialized service modules including International Advisory, M&A, IT Systems Audit, Sustainability Reporting, Corporate Finance, and Business Advisory. These services are delivered through interdisciplinary teams of auditors, tax advisors, and lawyers who collaborate across disciplines to provide holistic solutions for clients ranging from family businesses and SMEs to international corporations and public institutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Steuerberatung (Tax Advisory) Comprehensive tax advisory services including strategic tax structuring, corporate restructuring, VAT advisory, international tax law and transfer pricing, tax due diligence, representation before tax authorities, tax compliance, and ongoing tax support for businesses and private clients.
• Wirtschaftsprüfung (Auditing) Audit services covering annual and consolidated financial statements (HGB and IFRS), statutory and voluntary audits, sustainability reporting (CSRD), risk management audits, IT systems audits, transaction-related audits, and business valuations.
• Rechtsberatung (Legal Advisory) Legal advisory services covering commercial and corporate law, transformation law, M&A transactions, inheritance law and business succession, employment law, with a proactive and forward-looking approach.
• Internationale Beratung (International Advisory) International advisory services leveraging the GGI Geneva Group International network, providing access to experts in over 120 countries for cross-border tax, legal, and audit matters.
• Mergers & Acquisitions (M&A) Comprehensive M&A advisory including due diligence (financial, tax, legal, IT), business valuations, support through acquisition, merger, or joint venture processes from analysis to contract structuring to execution.
• Prüfung von IT-Systemen (IT Systems Audit) IT systems audit services including review of internal control systems, data migration analysis, data security assessment, GoBD compliance review, analysis of IT-based financial reporting systems, and interface process optimization.
• Nachhaltigkeitsberichterstattung (Sustainability Reporting) Sustainability reporting services under CSRD and ESRS framework, including advisory on double materiality assessment, CSRD/ESRS/EU Taxonomy/CBAM compliance, and support for external sustainability audits.
• Corporate Finance Corporate finance advisory covering investment advisory, M&A, business valuation, fairness opinions, purchase price allocation, structuring of financing arrangements, and restructuring and turnaround services.
• Betriebswirtschaftliche Beratung (Business Advisory) Business advisory services including controlling and business planning, integrated business plans, cost accounting systems, pricing strategies, start-up advisory, funding opportunities, business valuations, and crisis/restructuring advisory.

Quantifiable outcome

• Handelsblatt Top Tax Advisors / Top Auditors for 9 consecutive years (2018-2026)
• +2 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature1 record

Partnerships

One partnership is on record.

• GGI Geneva Group InternationalcoreStrategic or Co-development PartnerFACT is a long-standing member of GGI Geneva Group International, one of the world's leading alliances of independent auditors, tax advisors and lawyers. The partnership provides access to international specialists in all relevant markets, with GGI represented in more than 120 countries. This enables FACT to support clients quickly and efficiently in complex international matters including cross-border expansion and international tax situations.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• RSM Germany: German member of RSM International, focused on mid-market audit, tax, and consulting. Comparable to FACT's mid-market positioning and interdisciplinary service delivery, with similar Mittelstand client base.
• Rödl & Partner: German mid-market interdisciplinary advisory firm offering audit, tax, legal, and M&A services to Mittelstand and family businesses. Most direct comparable to FACT given its integrated service model, German Mittelstand focus, and similar ownership structure.
• Grant Thornton Germany: German member of Grant Thornton International, offering audit, tax, and advisory services to mid-market and growth-stage companies. Highly comparable to FACT in mid-market positioning and integrated service offerings.
• BDO Germany: German member of BDO Global, providing audit, tax, and advisory services to mid-market companies. Comparable to FACT in service breadth, Mittelstand focus, and interdisciplinary structure, though at significantly larger scale.
• Mazars Germany: German operation of Mazars, an international mid-tier audit and advisory network. Comparable to FACT in offering integrated tax, audit, and legal services to mid-sized and internationally active companies.
• Ebner Stolz: One of Germany's largest independent mid-market advisory firms with audit, tax, legal, and consulting services. Comparable to FACT in targeting family-owned businesses and Mittelstand with integrated interdisciplinary teams.
• PKF Fasselt Hollmann Schmidt: German member of PKF International providing audit, tax, and advisory services to mid-market clients. Comparable to FACT in interdisciplinary service offering and similar client segment focus.
• Baker Tilly Germany: German member of Baker Tilly International, providing audit, tax, legal, and consulting services. Closely comparable to FACT in full-service mid-market positioning and Mittelstand client focus.

Broad incumbents

• Deloitte Germany: German member of Big 4 Deloitte, offering audit, tax, legal, consulting, and advisory services across all major industries. Competes with FACT for large Mittelstand and international clients, though at vastly different scale and service breadth.

Emerging players

• Flick Gocke Schaumburg: Boutique German advisory firm specializing in tax law and international tax planning for large family businesses and corporates. Comparable to FACT's international tax practice, though more focused on tax specialty rather than full-service model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/fact-steuerberatungsgesellschaft-mbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles24 records

Subsidiaries2 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 FACT