What PIA Group does

PIA Group is an international accountancy, advisory, and audit network headquartered in Ghent, Belgium, structured as PIAGroup Belgium NV. The group operates through a federation of locally owned member offices that retain their individual brands while integrating into a shared platform of expertise, tooling, and back-office services. As of mid-2026, the network comprises 56 brands across 96 offices in Belgium and Luxembourg, with additional operations in the Netherlands (PIA Group Nederland) and Germany (PIA Group Germany). The group reports €440 million in consolidated 2025 turnover and is positioned as the third-largest and fastest-growing accountancy and advisory group in Belgium.

The service portfolio spans core accounting and bookkeeping, tax advisory (domestic VAT, OSS/IOSS cross-border VAT, corporate and personal income tax), legal advisory, corporate finance and M&A, wealth and succession planning, and digital transformation services. Specialist offerings include productized diagnostic scans such as the Btw Medic Scan (€500) and Btw E-commerce Scan (€750), Peppol e-invoicing compliance readiness ahead of the January 2026 Belgian mandate, and sector expertise across twelve or more verticals including medical, construction, agriculture, retail, transport, e-commerce, management companies, and holding structures. In 2024, PIA Group launched PIA Go!, a digital-first accounting platform with mobile app and personal bookkeeper support targeted at sole proprietors and startups, available on iOS and Google Play.

The business model combines acquisition-led network expansion with a recurring-services revenue base. Member firms continue to operate under their own identities, and the central organization provides shared technology, sector expertise, regulatory compliance guidance, and marketing infrastructure. Growth is executed primarily through acquisitions (two rounds in the first half of 2026 alone), supported by a digital product extension and cross-border geographic expansion. Customers are predominantly SMEs, entrepreneurs, starters, and private individuals across Belgium and Luxembourg, with an institutional base of medical professionals, retailers, transport operators, agricultural businesses, and e-commerce merchants requiring ongoing tax, legal, and financial advisory support.

Name

PIA Group

Legal name

PIAGroup Belgium

Website

https://pia.be

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

501–1,000 employees

Short description

PIA Group is a Belgian accountancy, advisory, and audit network headquartered in Ghent, operating 56 brands across 96 offices in Belgium and Luxembourg with additional presence in the Netherlands and Germany. It serves SMEs, entrepreneurs, sole proprietors, and sector-specialized clients with accounting, tax, legal, corporate finance, and wealth advisory services.

Ownership category

akta.pro rank

Product category

Accounting & Advisory Services

NAICS

Management of Companies and Enterprises (551), Marketing Consulting Services (541613)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Business Intelligence, Reporting & Data Platforms (THALACAL)

Keywords

• Accountancy services
• Tax advisory
• Bookkeeping services
• Corporate finance
• Wealth planning

Headquarters

HQ city

Gent

HQ country

Belgium

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. Accounting & Bookkeeping Services: Recurring accounting, bookkeeping, and financial administration services for entrepreneurs, SMEs, and private individuals, delivered through a network of local member offices across Belgium and Luxembourg.
2. Tax Advisory Services: Ongoing and project-based tax advisory covering VAT (domestic, cross-border, OSS/IOSS), corporate tax, income tax, and sector-specific tax optimization. Includes specialized offerings such as Btw Medic Scan and Btw E-commerce Scan.
3. Legal & Corporate Advisory: Legal advisory services including company formation, corporate structure, M&A, and succession planning. Corporate finance advisory for business valuations, investment structuring, and acquisition/disposal.
4. Wealth & Succession Planning: Advisory services covering personal wealth planning, pension planning, and succession planning for entrepreneurs, including management companies and holding structures.
5. Sector-Specific Advisory: Specialized advisory services for specific sectors including medical professionals, construction, agriculture, retail, transport, e-commerce, and startups. Includes digital transformation and automation consulting.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

PIA Group provides accountancy, tax advisory, legal, corporate finance, and wealth planning services to entrepreneurs, SMEs, and private individuals across Belgium and Luxembourg, delivered through a network of local member offices that retain their own brands. In 2024, it launched PIA Go!, a digital accounting platform with mobile app targeting sole proprietors and one-person businesses, complemented by Peppol e-invoicing and digital transformation advisory. The group is positioned as the third-largest and fastest-growing accountancy and advisory group in Belgium, with 56 brands and 96 offices across the BeLux region as of June 2026.

Product overview

PIA Group is an international accountancy, advisory, and audit network headquartered in Ghent, Belgium, operating as the third-largest accounting and advisory group in Belgium. The company offers a portfolio of professional services through a network of local offices, combining personalized accounting and bookkeeping with expert advisory services. The product portfolio includes core accounting and tax services (accountancy, VAT advisory, legal services, corporate finance, wealth planning), specialized diagnostic services (Btw Medic Scan, Btw E-commerce Scan), sector-specific advisory services (medical sector, construction, agriculture, retail, transport/logistics, e-commerce, management companies, holdings, SMEs, startups), and digital products (PIA Go! for sole proprietors, Peppol e-invoicing, digital transformation services). The group operates across Belgium, Luxembourg, and the Netherlands with 96 offices and 56 brands in the BeLux region as of June 2026.

Differentiator

Problem solved

Functional benefit

Brands

• PIA Go!: Accounting solution for one-person businesses and self-employed, launched in 2024, featuring smart digital tools, user-friendly dashboard, and mobile app.

Products and services

• Accountancy Services Full accounting and bookkeeping services including financial reporting, tax filing, and proactive advisory support for businesses and individuals, delivered through PIA member offices.
• VAT Advisory (Btw-advies) Expert VAT consultation covering domestic and international VAT obligations, compliance, and optimization strategies for Belgian and cross-border businesses.
• Legal Services Legal advisory covering company formation, business growth governance, and dissolution.
• Corporate Finance Financial planning and advisory from business formation to acquisition, including investment structuring and business valuation.
• Wealth Planning (Vermogensplanning) Comprehensive wealth planning covering income planning, pension capital, and financial simulations for entrepreneurs and private individuals.
• PIA Go!

Quantifiable outcome

• €440 million consolidated turnover in 2025 across the BeLux network.
• +1 more outcomes

Named customers4 records

Segments10 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core.

• VDV AccountantscoreOthers · 25 June 2026VDV Accountants, with 25 years of experience, specializes in tax and advisory services for entrepreneurs and self-employed clients in East Flanders. Integrated into PIA Group's BeLux network, bringing total to 56 brands and 96 offices.
• Groupe MDScoreOthers · 25 June 2026Groupe MDS, with nearly 30 years of experience, serves SMEs, consultants, and industrial businesses across Brussels and Brabant. Integrated into PIA Group's BeLux network in June 2026.
• AccofisccoreOthers · 27 January 2026Acquired by PIA Group in January 2026. Located in West Flanders. Part of a group of five acquisitions adding 193 employees and €27.7 million in revenue to PIA Group's BeLux network.
• WarfidcoreOthers · 27 January 2026Acquired by PIA Group in January 2026. Located in West Flanders. Contributed to the expansion of PIA Group's BeLux network to 52 brands and 92 offices.
• DSM ConsultingcoreOthers · 27 January 2026Acquired by PIA Group in January 2026. Located in Lier, Belgium. Added to PIA Group's portfolio of advisory firms in the BeLux region.
• PME Assistance / DCA / DTAXcoreOthers · 27 January 2026Acquired by PIA Group in January 2026. With offices in Grimbergen and Luxembourg City. Part of the five acquisitions expanding PIA Group's footprint in Belgium and Luxembourg.
• Fiduciaire RensoncoreOthers · 27 January 2026Acquired by PIA Group in January 2026. Located in Verlaine, Belgium. Contributed to PIA Group's expansion to 52 brands and 92 offices in the BeLux region.

Scale indicators9 records

Recent moves8 records

Expansion highlights7 records

Direct peers

• BDO Belgium: BDO Belgium is part of the global BDO network and one of the largest mid-tier accounting and advisory firms in Belgium. Closely comparable to PIA in network-model structure, advisory-led services, and SME / mid-market focus.
• VGD Belgium: VGD is a Belgian accountancy and tax advisory network with multi-office presence across Belgium. Comparable to PIA in its SME-focused advisory model and Belgian geographic footprint.
• Baker Tilly Belgium: Baker Tilly Belgium is a mid-tier accounting and advisory firm serving Belgian SMEs and entrepreneurs, with comparable advisory, tax, and corporate finance offerings. Direct competitor in PIA's core market.
• Grant Thornton Belgium: Grant Thornton Belgium operates as the Belgian arm of Grant Thornton International, providing audit, tax, and advisory services to dynamic mid-market companies. Directly comparable on size tier, client profile, and service mix.
• Mazars Belgium: Mazars Belgium is part of the international Mazars integrated partnership, offering audit, tax, and advisory services. Comparable as a multi-office professional services network targeting mid-market and large clients in Belgium and Luxembourg.
• PKF Belgium (Vandelanotte): Vandelanotte is a leading Belgian mid-tier audit and advisory firm affiliated with PKF International. Comparable to PIA on SME focus, multi-office Belgian presence, and integrated tax/accountancy/advisory service mix.
• RSM Belgium: RSM Belgium is the Belgian member of the RSM international accounting network, serving SMEs and mid-market clients with audit, tax, and consulting services. Directly comparable to PIA's positioning as a top-tier mid-market network in Belgium.
• Moore Belgium: Moore Belgium is part of the Moore Global Network and competes in the same mid-tier accounting, tax, and advisory space as PIA, with comparable SME client focus and Belgian market presence.

Broad incumbents

• KPMG Belgium: KPMG Belgium is a Big 4 firm offering audit, tax, and advisory services with broad coverage of Belgian SMEs, mid-market, and large enterprise. Competitor in the same advisory market but operates at a larger scale and broader portfolio than PIA.

Emerging players

• Accountancy Europe member networks (e.g., BKR International, Kreston International): Global mid-tier accountancy associations whose member firms compete with PIA for cross-border SME advisory mandates. BKR and Kreston represent the type of international mid-tier network comparable to PIA's positioning outside the Big 4.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/pia-group-your-financial-expert

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries7 records

Funding overview

Funding rounds

Investors

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

M&A5 records

Investments

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

Frequently asked questions about PIA Group