MUIS Software B.V.

What MUIS Software B.V. does

MUIS Software B.V. is a Netherlands-based, privately held software company founded in 1984 and headquartered in Heemskerk, operating across the Netherlands, Denmark, and Sweden under the Bjorn Lunden brand. The firm develops administrative and accounting software primarily serving Dutch SMBs ("MKB-ondernemers") and accountancy practices, with a portfolio that spans online bookkeeping, office/workflow management, ERP, warehouse management, and KYC/AML compliance. Its go-to-market operates through two parallel product lines: the legacy KING family (KING Accountancy, KING Finance, KING ERP, KING WMS) targeting accountants and entrepreneurs, and the newer cloud-oriented Lundify Suite (Lundify Accountant, Lundify, Lundify Workflow, Lundify Compliance), supported by an integration app store and a reseller/expert-center distribution channel.

The company's core technology is an integrated suite of on-premise and online accounting, ERP, and workflow modules, with documented ISO certification and an emphasis on seamless third-party integrations. No proprietary AI/ML stack, APIs, or SDKs are publicly disclosed; the platform instead relies on rule-based automation and structured workflow design. Distribution combines direct online demos, an app marketplace at apps.kingsoftware.nl, a "Vind een verkooppunt" reseller locator, and an active Dutch-language content and webinar program.

Revenue mechanics are not publicly disclosed and pricing is not listed, but the SMB/accountancy positioning, reseller channel, and multi-country footprint imply a distributed base of small recurring contracts. Headcount is reported in the 11–50 range, and the firm has executed at least one disclosed acquisition (ctrl B.V., March 2019). The company operates without disclosed external funding and maintains an active careers portal, suggesting organic reinvestment rather than venture-backed scale.

Name

MUIS Software B.V.

Legal name

Bjorn Lunden, Inc.

Website

https://muis.nl

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

MUIS Software B.V. is a Netherlands-based, privately held developer of administrative and accounting software serving SMBs and accounting firms across the Netherlands, Denmark, and Sweden via the KING and Lundify product lines.

Ownership category

akta.pro rank

Product category

Accounting & ERP Software

NAICS

Software Publishers (5132)

SIC

Services-Prepackaged Software (7372)

akta.pro industry

PRIMARYBPAEAGAO

Enterprise Application License Advisory, Vendor Management & Optimization

Business & Public Services/IT & Digital Services (Managed Services, Systems Integration)/Enterprise Applications Services (ERP/CRM/HRIS)

Keywords

• Accounting software
• ERP software
• Warehouse management
• Compliance software
• Office management

Headquarters

HQ city

Heemskerk

HQ country

Netherlands

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Core offering

MUIS Software B.V. develops and sells online business administration software under the Bjorn Lunden brand, including the Lundify Suite for accountants and entrepreneurs (Lundify Accountant, Lundify online accounting, Lundify Workflow office management, and Lundify Compliance KYC/AML) and the KING product family for accounting firms and entrepreneurs (KING Accountancy, KING Finance, KING ERP, and KING WMS warehouse management). The products are sold primarily to Dutch accounting firms and SMB entrepreneurs for automating bookkeeping, financial management, warehouse operations, and compliance processes.

Product overview

Bjorn Lunden operates two distinct product lines: the newer Lundify Suite (comprising Lundify Accountant, Lundify, Lundify Workflow, and Lundify Compliance) targeting accountants and entrepreneurs with modern online accounting and workflow automation, and the established KING product family (KING Accountancy, KING Finance, KING ERP, and KING WMS) providing comprehensive accounting software, ERP, and warehouse management solutions. The Lundify line emphasizes seamless integrations and reduced workload, while the KING line offers more specialized, modular solutions for different business segments.

Differentiator

Problem solved

Functional benefit

Brands

• Lundify: Online accounting suite including Lundify Accountant and Lundify Workflow for accountants and office management
• KING Accountancy
• KING Finance
• KING ERP
• KING WMS
• Lundify Compliance
• Lundify Workflow

Products and services

• Lundify Suite A unified suite of online accounting and workflow solutions for accountants and entrepreneurs, designed to automate administrative tasks and streamline business processes. Comprises Lundify Accountant, Lundify, Lundify Workflow, and Lundify Compliance.
• Lundify Accountant Online accounting and work-process software for accounting firms, enabling automation and efficiency in client bookkeeping.
• Lundify Online accounting solution for entrepreneurs, offering fast, simple, and smart financial management capabilities.
• Lundify Workflow Office management (kantoorbeheer) solution for accountants to manage administrative workflows and document processes.
• Lundify Compliance KYC and AML software for compliance management, helping businesses meet regulatory requirements.
• KING Accountancy Software for accounting firms (accountantskantoren), focused on automation and efficiency for accountancy offices.
• KING Finance All-in-one accounting software (boekhoudsoftware) for entrepreneurs, providing comprehensive financial management capabilities.
• KING ERP All-in-one ERP solution integrating various business functions including finance, inventory, and operations for entrepreneurs.
• KING WMS Warehouse management system for efficient inventory and warehouse operations management for entrepreneurs.

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves6 records

Expansion highlights6 records

Direct peers

• Visma: Large Nordic provider of accounting, ERP, and HR software serving SMBs and accountants across Northern Europe. Closest direct competitor to Bjorn Lunden, with overlapping geography (NL/DK/SE) and overlapping customer base of accountants and SMBs.
• Exact Software: Dutch-headquartered cloud business software for accounting and ERP, serving SMBs across the Netherlands and Belgium. Direct competitor with similar product categories (accounting, ERP) and overlapping target customers (accountants and entrepreneurs).
• AFAS Software: Dutch privately-held vendor of accounting, ERP, and HR software (AFAS Profit, AFAS Online) for Dutch SMBs and accountants. Closely comparable on geography, product mix (accounting + ERP), and target customer (MKB/SMB and accounting firms).
• SnelStart: Dutch cloud accounting software for SMBs and accountants. Highly comparable product (online bookkeeping) and target market (Dutch SMB/entrepreneurs), directly competing for the same customer segment as MUIS/Lundify.
• Moneybird: Dutch online accounting software targeting freelancers, SMBs, and accounting firms. Direct competitor in the Dutch online-accounting space, with overlapping customer segments and a similar cloud-native go-to-market.
• Unit4: Dutch ERP and finance software vendor serving mid-market and SMB organizations. Comparable on ERP product category (overlapping with KING ERP) and Benelux geography.
• Twinfield: Dutch online accounting platform for accountants and SMBs, owned by Wolters Kluwer. Closely comparable product (cloud bookkeeping) and customer segment (accounting firms and entrepreneurs) to Bjorn Lunden's Lundify.
• Yuki (Visma): Dutch cloud accounting automation platform targeting accountants and SMBs, now part of Visma. Comparable online-accounting offering and accountant/SMB focus, directly competing for the same Dutch customers as Lundify.

Broad incumbents

• Wolters Kluwer: Large Dutch-listed provider of professional information, compliance, and accounting/workflow software (including Twinfield). Overlaps with Bjorn Lunden on Dutch accounting and compliance (KYC/AML) workflows but operates across a much broader portfolio including legal, tax, and health.
• Sage Group: Global incumbent in accounting, payroll, and ERP software for SMBs and accountants. Comparable core product (accounting/ERP) but at significantly larger scale and broader geographic reach; sets competitive baseline for functionality expectations.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/muis.nl
• LinkedInlinkedin.com/company/muis-software-b.v.
• Instagraminstagram.com/bjornlunden_nl
• Xx.com/MUISSoftwarebv

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&A1 record

Investments

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

Frequently asked questions about MUIS Software B.V.