Bunnig & Partners Accountants + Adviseurs

What Bunnig & Partners Accountants + Adviseurs does

Bunnig & Partners Accountants + Adviseurs is a private Dutch accounting and advisory firm headquartered in Leiden, Netherlands, operating since approximately 1969 under the legal entities Bunnig & Partners accountants + adviseurs B.V. and Bunnig & Partners assurance B.V. The firm employs approximately 26 people organized as a partnership, with Erik Bunnig as director and Peter Timmermans, Oscar Meijrink, and Hans Pouwels identified as partners. It serves the MKB (small and medium enterprises) segment in Leiden and surrounding municipalities, with specialized expertise for director-major shareholders (DGA) including salary optimization, business structure, and succession planning.

The firm's core service portfolio spans four disciplines: Financial Administration (bookkeeping, debtor/creditor management, VAT returns), Accountancy (annual accounts compilation and financial reporting), Payroll Administration (fixed-rate per employee, monthly subscription, including cloud HR self-service), and Tax Services (income, corporate, dividend, gift and inheritance tax returns plus advisory). Technology is built on third-party partner platforms — Basecone for document management, Exact for cloud accounting, and Visionplanner for financial planning and BI dashboards — combined with proprietary workflow elements such as Scan & Herken (OCR-based invoice recognition) and bank integrations. The firm holds a Horizontal Monitoring (Horizontaal Toezicht) convenant with the Dutch Tax Authority and is a member of NOAB and NBA.

Revenue is generated through a mix of recurring monthly subscriptions (payroll at fixed per-employee rates, financial administration retainers) and professional services fees (accountancy, tax compliance and advisory). Pricing is tailored to client portfolio size and complexity and is not publicly disclosed. The go-to-market model is sales-led and relationship-driven, supported by a free initial consultation, an extensive tax and accounting news section (over 280 articles), newsletter subscription, community sponsorship (headline sponsor of the Leiden Half Marathon), and direct advisory delivery with optional cloud-based self-service for clients. In 2019, the firm acquired Apek to expand team capacity and received renewed NBA approval.

Name

Bunnig & Partners Accountants + Adviseurs

Legal name

Bunnig & Partners accountants + adviseurs B.V.

Website

https://bunnig.nl

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

11–50 employees

Short description

Bunnig & Partners is a private Leiden-based accounting and advisory firm serving small and medium enterprises in the Leiden region with bookkeeping, payroll, tax, and accountancy services through a team of approximately 26 people.

Ownership category

akta.pro rank

Product category

Accounting Services

NAICS

Accounting, Tax Preparation, Bookkeeping, and Payroll Services (54121), Payroll Services (541214)

SIC

Finance Services (6199), Services-Management Consulting Services (8742)

akta.pro primary industry

Employer Payroll Processing (SMB & Enterprise) (FSAMAKAA)

Keywords

• Accountancy services
• Tax advisory
• Payroll administration
• Financial administration
• Business advisory

Headquarters

HQ city

Leiden

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Accountancy: Annual accounts compilation, audit support, and financial reporting services for MKB clients
2. Tax Services: Tax returns (income tax, corporate tax, dividend tax, gift and inheritance tax), tax planning, and advisory services including DGA salary optimization and business structure optimization
3. Payroll Administration: Fixed rate per employee per month for complete payroll processing including compliance and reporting
4. Financial Administration: Processing of financial records, debtor and creditor management, VAT returns preparation
5. Horizontal Monitoring (Horizontaal Toezicht): Special arrangement with Dutch Tax Authority for pre-clearance of tax positions

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Bunnig & Partners is an accounting and advisory firm that provides financial administration, accountancy (annual accounts and financial reporting), payroll administration, and tax services to small and medium-sized enterprises (MKB) in the Leiden region. It complements these core services with cloud-based online bookkeeping and online HR & payroll platforms that integrate directly with the firm's advisors, allowing clients to outsource entirely or self-manage with Bunnig providing oversight.

Product overview

Bunnig & Partners is an accounting firm offering a unified service portfolio centered around four core accounting and advisory services: Financial Administration, Accountancy, Payroll Administration, and Tax Services. These core services are supplemented by cloud-based online services including Online Cloud Administration and Online HR & Payroll Administration. The firm uses partner software including Basecone for document management, Exact for accounting, and Visionplanner for financial planning. The offering follows a modular approach where clients can choose to outsource all administrative tasks or self-manage with Bunnig providing oversight through online dashboards.

Differentiator

Problem solved

Functional benefit

Products and services

• Financiële administratie (Financial Administration) Financial administration services processing client bookkeeping through automated methods including scan-and-recognize technology, bank connections, and various software packages, aimed at MKB businesses that want their administration handled or supported.
• Accountancy Comprehensive accounting services for small and medium-sized enterprises, including compilation of annual accounts, financial reporting, and business advisory.
• Salarisadministratie (Payroll Administration) Payroll administration services offered at a fixed rate per employee, including processing, compliance with legal changes, CAO requirements, and periodic adjustments.
• Belastingen (Tax Services) Tax services covering income tax, corporate tax, dividend tax, gift and inheritance tax returns, plus advisory on DGA salary, company cars, financing, business structure optimization, succession planning, and contract review.
• Online Cloud Administratie (Online Cloud Accounting) Cloud-based accounting solutions offering automatic bank connections, no hardware investment, fixed monthly fees, managed backups, 24/7 dashboard access, and direct integration with Bunnig & Partners.
• Online HR- en Salarisadministratie (Online HR & Payroll Administration) Cloud-based HR and payroll administration enabling online collaboration, employer access to HR data, and employee self-service for salary documents, leave, and absence registration via app.

Quantifiable outcome

• Pre-clearance of tax filings through Horizontaal Toezicht arrangement
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature4 records

Partnerships

Six partnerships are on record, tiered core and flagship.

• BaseconecoreTechnology or IntegrationBasecone provides cloud-based document management and automation solutions for accounting firms. Bunnig & Partners uses Basecone as part of their digital document processing workflow for scanning, recognizing, and organizing client documents.
• ExactcoreTechnology or IntegrationExact provides accounting and ERP software solutions. Bunnig & Partners works with Exact as one of their preferred cloud accounting platforms for client financial administration.
• VisionplannercoreTechnology or IntegrationVisionplanner provides financial planning and reporting software for advisory firms. Bunnig & Partners uses Visionplanner for creating insightful financial reports and dashboards for their clients.
• Belastingdienst (Dutch Tax Authority)flagshipStrategic or Co-development PartnerBunnig & Partners has signed a convenant with the Dutch Tax Authority under the Horizontal Monitoring (Horizontaal Toezicht) framework, enabling pre-clearance of tax positions for participating clients. This partnership demonstrates the firm's quality and expertise as recognized by the authorities.
• NOABcoreOthersNOAB (Nederlandse Orde van Accountants-Administratieconsulenten) is the professional association for accountants and administration consultants in the Netherlands. Bunnig & Partners is a member, providing professional standards and network support.
• NBAcoreOthersNBA (Nederlandse Beroepsorganisatie van Accountants) is the Dutch professional organization for accountants. Bunnig & Partners has accountants who are members of the NBA, indicating certified professional standards.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Regional players

• HLB Netherlands: HLB Netherlands is part of the HLB International network of accounting firms, offering MKB-focused accounting, tax, and advisory services from multiple Dutch regional offices.
• Crowe Netherlands: Crowe Netherlands is part of the international Crowe Global network, providing accounting, tax, and advisory services to MKB and mid-market clients in the Netherlands with regional offices.

Broad incumbents

• Grant Thornton Netherlands: Grant Thornton is a global accounting network with a Dutch MKB-focused practice offering accounting, tax, and advisory services competitive with regional Dutch firms.
• BDO Netherlands: BDO is a large international accounting network with a significant Dutch MKB-focused practice offering accounting, tax, and advisory services - directly competing for mid-market clients while offering broader capabilities.
• Mazars Netherlands: Mazars is an international audit and advisory firm with a Dutch practice serving MKB through mid-market clients, offering overlapping accounting, tax, and payroll services at scale.

Direct peers

• Accon AVM: Accon AVM is a Dutch regional accounting and advisory firm serving MKB clients with a comparable service portfolio including accountancy, tax, payroll, and online cloud solutions.
• Visser & Visser: Visser & Visser is a Dutch accounting and advisory firm serving MKB and family businesses with a comparable full-service offering including accountancy, tax, and online administration.
• Flynth: Flynth is one of the largest Dutch accounting and advisory firms focused on the MKB and agricultural sector, with a similar service portfolio (accounting, tax, payroll, advisory) and broad regional coverage across the Netherlands.
• Joanknecht: Joanknecht is a Dutch regional accounting and advisory firm with a strong MKB focus, offering comparable services around accountancy, tax, payroll, and corporate advisory.
• Baker Tilly Netherlands: Baker Tilly Netherlands is a mid-tier accounting and advisory firm serving MKB and family-owned businesses across the country, with a similar full-service model spanning accountancy, tax, payroll, and advisory.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/BunnigPartners
• Facebookfacebook.com/Bunnigenpartners

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Bunnig & Partners Accountants + Adviseurs