Name

Fiduciaire Renson

Legal name

S.A. Fiduciaire Renson et Associés

Website

https://renson-fiduciaire.be

Company type

Private

Founded year

1971

Operating status

Acquired

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Accounting & Tax Advisory

NAICS

Offices of Certified Public Accountants (541211), Trust, Fiduciary, and Custody Activities (523991)

akta.pro primary industry

Trust & Estate Tax Planning & Compliance (FSAEAKAE)

akta.pro secondary industry

Tax-Focused Wealth Management RIAs (FSAAACAD)

Keywords

• Accounting services
• Tax advisory
• Bookkeeping services
• Business management
• Fiscal compliance

Headquarters

HQ city

Verlaine

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Accounting and Bookkeeping Services: Ongoing accounting services including organization, maintenance, and supervision of client bookkeeping, balance sheet preparation, and annual accounts filing
2. Tax Advisory Services: Tax preparation and advisory services including personal income tax, corporate tax, non-resident tax, VAT declarations, and tax optimization
3. Business Management and Company Formation Services: Company creation assistance, financial planning, administrative formalities, and business management advisory

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Fiduciaire Renson is a Belgian chartered accountancy and tax-advisory firm delivering three core service lines: Comptabilité (accounting and bookkeeping), Fiscalité (tax services), and Gestion d'entreprise (business management consulting). The firm serves SMEs, entrepreneurs, liberal professions, ASBLs, and individuals, supported by a team of approximately 30 staff that includes 11 ITAA-certified members.

Product overview

Fiduciaire Renson operates as an accounting and tax advisory firm offering a unified service portfolio centered on three integrated core offerings: Comptabilité (accounting services including bookkeeping, financial statement preparation, and annual accounts filing), Fiscalité (tax services including tax return preparation, VAT compliance, and tax audit defense), and Gestion d'entreprise (business management advisory including company formation, financing assistance, and administrative formalities). Founded in 1971 and now part of PIA Group, the firm serves approximately 30 people including certified accountants and tax advisors, serving PME, independent entrepreneurs, liberal professions, ASBL, and individuals across all sectors. The three service lines work together as a comprehensive advisory package, with accounting data feeding into tax preparation and both informing broader business management decisions.

Differentiator

Problem solved

Functional benefit

Products and services

• Comptabilité (Accounting) Ongoing accounting and bookkeeping service for SMEs, entrepreneurs, liberal professions, ASBLs, and individuals, delivered by ITAA-certified professionals using electronic accounting tools.
• Fiscalité (Tax) Tax advisory and tax compliance service for SMEs, entrepreneurs, liberal professions, ASBLs, and individuals, covering Belgian fiscal obligations and optimization.
• Gestion d'entreprise (Business Management) Business management consulting service supporting clients with strategic, financial, and operational management of their business, including advising entrepreneurs and liberal professions.

Named customers5 records

Segments5 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 core and minor.

• PIA GroupcoreStrategic or Co-development Partner · 27 January 2026Fiduciaire Renson was acquired by PIA Group, an international accountancy, advisory and audit network. The acquisition integrates Fiduciaire Renson into PIA Group's BeLux portfolio of 52 brands operating from 92 offices. Fiduciaire Renson maintains its local approach and personalized service while benefiting from PIA Group's enhanced resources, expanded expertise, and powerful digital solutions. PIA Group reported consolidated turnover of €440 million in 2025.
• ITAA (Institute for Tax Advisors & Accountants)coreOthersFiduciaire Renson is a member of ITAA (Institute for Tax Advisors & Accountants), member number 50.409.280. ITAA is the professional institute for certified accountants and tax advisors in Belgium, providing regulatory oversight and professional standards.
• NotariesminorStrategic or Co-development PartnerFiduciaire Renson maintains privileged relationships with notaries for company formation and business transaction support services.
• Auditors (Réviseurs d'entreprises)minorStrategic or Co-development PartnerFiduciaire Renson collaborates with auditors for comprehensive business advisory services including financial statement reviews and company audits.
• Lawyers (Avocats)minorStrategic or Co-development PartnerFiduciaire Renson maintains professional network relationships with lawyers for integrated legal and financial advisory services.
• Social secretariat providersminorStrategic or Co-development PartnerExternal collaborators providing social secretariat services for payroll and HR administration support to clients.
• Insurance brokers and companiesminorStrategic or Co-development PartnerCollaboration with insurance providers for business risk management and insurance advisory services.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• BDO Belgium: Mid-tier Belgian accounting and advisory firm providing audit, tax, and consulting services to SMEs and mid-market clients. Directly comparable to Fiduciaire Renson in target customer segment and service mix, though at significantly larger scale.
• Vandelanotte: Belgian accounting and advisory firm with strong regional presence serving SMEs, entrepreneurs, and liberal professions. Closely comparable to Fiduciaire Renson in service offering, customer profile, and regional focus.
• RSM Belgium: Belgian member of RSM International providing accounting, tax, and advisory services to SMEs and entrepreneurial clients. Directly comparable business model and target customer base to Fiduciaire Renson.
• Moore Belgium: Belgian accounting and advisory network serving SMEs and mid-market companies with audit, tax, and consulting services. Comparable to Fiduciaire Renson in service portfolio and customer focus, with similar multi-office regional presence in Belgium.
• Mazars Belgium: International accounting and advisory firm with Belgian presence offering audit, tax, and consulting services. Comparable to Fiduciaire Renson in core accounting and tax services, with broader international reach.
• Baker Tilly Belgium: Belgian accounting, tax, and advisory firm serving SMEs and mid-market clients. Comparable to Fiduciaire Renson in delivering integrated accounting and tax services to a similar customer base.

Broad incumbents

• Deloitte Belgium: Big 4 professional services firm with comprehensive audit, tax, legal, and consulting capabilities in Belgium. Competes for larger mandates but broader portfolio; overlaps with Fiduciaire Renson on tax and accounting services for upper-mid-market clients.
• PwC Belgium: Big 4 professional services firm offering audit, tax, and advisory services to Belgian corporate and SME clients. Overlaps with Fiduciaire Renson on tax advisory and accounting services for larger SME and mid-market clients.
• EY Belgium: Big 4 firm with Belgian operations providing assurance, tax, and advisory services. Overlaps with Fiduciaire Renson on tax and accounting services, particularly for growth-oriented SME clients.
• KPMG Belgium: Big 4 firm providing audit, tax, and advisory services to Belgian enterprises of all sizes. Comparable to Fiduciaire Renson on tax and accounting services but at a much larger scale with broader corporate focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Fiduciaire Renson