What Onestein does

Onestein B.V. is a Netherlands-headquartered (Breda) open-source business-software specialist founded in 2010, operating as an Odoo Community-based ERP vendor and implementation partner. Its flagship product, CURQ, is an all-in-one SaaS platform built on the LGPL Odoo Community core and enriched with Onestein-developed modules and modules from the Odoo Community Association (OCA). The platform bundles CRM, accounting with native Dutch Referentie GrootboekSchema (RGS) support, expense declarations, invoicing, project management, e-commerce/webshop, website building, and community/association management into a single modular system, with curq.nl as the SMB/zzp self-serve entry point. The technical stack is Python/Odoo-based, containerized via Docker/Kubernetes in production deployments, with GitHub-published repositories under the onesteinbv organization.

Onestein generates revenue through a blended model: recurring CURQ SaaS subscriptions (monthly, hosting plus bundled email/VoIP/domain), quote-based enterprise custom implementations, business and technical consultancy, third-party open-source tool integration services (Sendcloud, Matomo, Metabase, Nextcloud, Quividet), helpdesk support, and load/perf testing services. Its core competitive proposition is a deliberate, principled commitment to 100% open-source licensing — taken when Odoo SA moved away from GPL — targeting Dutch-speaking businesses that prioritize freedom from vendor lock-in and regulatory localization (RGS) over proprietary-suite feature breadth.

Its go-to-market combines direct enterprise sales (structured consultancy-led implementation methodology with phased project definition, key-user integration, and acceptance) with a self-serve/inside-sales motion for CURQ SMB customers, supplemented by active contributions to the OCA, GitHub open-source publishing, Dutch-language SEO/content marketing, the SBB-keurmerk vocational-education partnership, and an Open Source Science co-development alliance. Geographic footprint is principally the Netherlands with stated expansion into Belgium, while open-source modules remain globally accessible through GitHub. Headcount is 11–50 employees and the company is privately held with no disclosed institutional funding.

Name

Onestein

Legal name

Onestein B.V.

Website

https://onestein.nl

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Onestein B.V. is a Netherlands-based open-source ERP specialist offering CURQ, an Odoo Community-based all-in-one SaaS platform, alongside custom enterprise implementations and consultancy services primarily serving Dutch (and Belgian) SMB, mid-market, and enterprise clients.

Ownership category

akta.pro rank

Product category

Open-Source ERP Software

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

Core ERP Suites (Financials, Procurement, Projects) (HDAEAEAA)

akta.pro secondary industries

Professional Services Automation (PSA) & Services ERP (HDAEAEAF), Sales Enablement & Revenue Operations (RevOps) Tools & Services (BPAFAFAJ)

Keywords

• Open source ERP
• Business software
• Odoo implementation
• SaaS ERP platform
• Accounting software

Headquarters

HQ city

Breda

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. CURQ SaaS Subscription: Onestein offers CURQ as a SaaS platform subscription for zzp'ers, start-ups, and small business owners. This provides recurring subscription revenue based on the selected service tier. The platform includes essential services such as email, VoIP, and domain registration bundled with the software.
2. Enterprise Custom Implementation Services: For larger organizations, Onestein provides specialized custom implementations building the ideal open-source solution tailored to specific business processes, using advanced tools for dashboarding, data analysis, and custom digital security.
3. Consultancy Services: Onestein offers Business Consultancy and Technical Consultancy services, helping clients map their processes and optimize their administration and IT processes. Implementation, testing, and helpdesk support services are also offered.
4. Integration and Add-on Services: Onestein integrates third-party open-source software (NextCloud, SendCloud, Matomo, Metabase) for clients and charges for installation, configuration, and ongoing support of these integrations within their ERP ecosystem.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Onestein develops and sells CURQ, an all-in-one open-source SaaS business software platform built on Odoo Community Edition and enhanced with proprietary modules and OCA (Odoo Community Association) modules. The platform covers CRM, accounting (with Dutch RGS compliance), invoicing, inventory, project management, HR, expense management, websites, e-commerce, and community management. In addition to the CURQ SaaS product, Onestein provides custom enterprise ERP implementations, business and technical consultancy, helpdesk support, and testing services, primarily to the Dutch market.

Product overview

Onestein offers CURQ, an all-in-one open-source business software platform built on Odoo Community Edition, enhanced with proprietary modules and OCA (Odoo Community Association) modules. CURQ serves as the core unified product for entrepreneurs and small businesses, combining CRM, accounting (with RGS support), expense declarations, invoicing, website building, e-commerce/webshop, project management, and community management modules. The modular architecture allows businesses to start with essential modules and scale as needed. Onestein also provides professional services including business and technical consultancy, implementation services, helpdesk support, and testing services. The company specializes in integrations with third-party open-source tools such as Sendcloud (shipping), Matomo (analytics), Metabase (BI), and Nextcloud (file storage).

Differentiator

Problem solved

Functional benefit

Brands

• CURQ: An all-in-one open-source business software platform by Onestein, targeted at entrepreneurs, startups, and small business owners. Based on Odoo Community edition with enhanced Dutch-specific functionalities.

Products and services

• CURQ All-in-one open-source SaaS business software platform for entrepreneurs, startups, and small business owners, built on Odoo Community Edition enhanced with proprietary modules and OCA modules. Provides CRM, accounting, invoicing, inventory, project management, HR, e-commerce, websites, and community management in a unified system, bundled with hosting, email, VoIP, and domain registration.
• Business Consultancy Advisory services to help businesses map their processes and optimize administrative and IT workflows. Includes project planning, phases and budgeting, implementation with key users, and acceptance phases.
• Technical Consultancy Technical consulting services for seamless integration between business structure and processes, including expert guidance on security, privacy, and complex IT infrastructure questions.
• CURQ Implementation Implementation services for the CURQ ERP system, including analysis, configuration, implementation, and ongoing support with experienced consultants and developers working closely with clients.
• Helpdesk Support Customer support services for open-source software and business solutions, providing expert help for network hosting, IT security, and ERP system questions via support tickets and email.
• Testing Services Software testing services including code testing, stress testing with Locust, code reviews, and OCA Code Guidelines compliance checking for Odoo projects.
• Integrations Services Integration services for connecting Odoo with third-party open-source tools including Sendcloud (shipping), Matomo (web analytics), Metabase (business intelligence), and Nextcloud (file storage), including installation, configuration, and ongoing support.
• Custom Enterprise ERP Implementation Specialized custom ERP implementations for larger organizations, building the ideal open-source solution tailored to specific business processes, with advanced tools for dashboarding, data analysis, and custom digital security.

Quantifiable outcome

• 40% of paid software licenses are typically unused by businesses — Onestein positions their all-in-one open-source approach as a solution to reduce waste from fragmented tool portfolios.
• +2 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• Open Source Science B.V.coreStrategic or Co-development PartnerOnestein partners with Open Source Science B.V. (OS-Sci) to develop educational courses and provide real-world FOSS project experience to students. Together they have designed curricula that equip students with skills, knowledge, and experience needed to succeed in their careers. Students work on real FOSS projects uploaded to GitHub, building their portfolio and online CV during their studies.
• SmoosecoreTechnology or IntegrationOnestein offers reliable hosting solutions via their partner Smoose (Smoose.nl). With advanced infrastructure and 24/7 support, Smoose guarantees optimal performance and security for customers' web applications and business systems. This is a key infrastructure partnership enabling the CURQ SaaS platform.
• Odoo Community Association (OCA)coreStrategic or Co-development PartnerOnestein actively contributes to the Odoo Community Association, using OCA modules in their CURQ product and maintaining public repositories (addons-oca). OCA is a non-profit foundation mobilizing and contributing to the Odoo ecosystem. Onestein's use of OCA modules makes their CURQ solution superior in specific areas like Dutch financial administration.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Odoo: The upstream vendor of the open-source ERP platform that Onestein builds on. Odoo Enterprise is the most direct competitor because Onestein's CURQ is positioned as a superior alternative for Dutch financial administration and member administration.
• ERPNext: Open-source ERP platform with a comparable business model (community edition plus paid hosting/support) to Onestein's CURQ, targeting SMBs and mid-market companies globally with an alternative to proprietary ERPs.
• iDocu: Dutch Odoo implementation partner offering custom Odoo ERP projects and CURQ-style managed services, directly competing with Onestein for Dutch Odoo implementation deals.
• Brixxs: Dutch Odoo gold partner providing Odoo ERP implementation and consultancy, competing head-to-head with Onestein for Dutch enterprise and mid-market Odoo deployments.

Broad incumbents

• Exact (Visma): Dutch-origin ERP/accounting vendor now part of Visma, serving SMBs and accountants in the Netherlands with on-premise and cloud ERP — a key competitor in the Dutch market Onestein operates in.
• AFAS Software: Leading Dutch ERP, HR, and accounting software vendor serving the same Dutch SMB and mid-market segment that Onestein targets with CURQ, with strong bundled payroll and finance functionality.
• Acumatica: Cloud-native mid-market ERP vendor with a partner-led delivery model, broadly comparable in customer profile and module coverage to Onestein's enterprise implementation business.
• King Software (Visma): Dutch accounting and ERP vendor serving accountants and SMBs, overlapping with Onestein's RGS-focused accounting and bookkeeper segment.
• Wolters Kluwer (Twinfield, Exact Online): Large Dutch-headquartered information services and accounting software group whose online accounting products target the same Dutch accountant/SMB segment as Onestein's RGS-based offerings.

Regional players

• Adifo (BESTMIX): Belgium-based ERP/specialty software vendor serving the Benelux region with comparable SMB/mid-market ERP capabilities, operating in Onestein's adjacent Belgian market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/onesteinbv
• Xx.com/ONESTEiN_ERP
• Facebookfacebook.com/Onesteinbv
• LinkedInlinkedin.com/company/onestein

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 Onestein