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Disclaimer: Star Stack provides information about European technology services for educational purposes only. Service listings, sovereignty assessments, and recommendations do not constitute legal, financial, or professional advice. We encourage you to verify all information independently and consult appropriate professionals before making technology decisions. Star Stack is not affiliated with any listed services unless explicitly stated.

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Congressus | Star Stack

Services
Congressus

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Congressus

Name: Congressus
Author: Star Stack

All-in-one association management software for Dutch membership organizations

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About

Congressus is a platform that manages member administration, finances, and events for Dutch membership organizations. It includes a website builder and handles payments via iDEAL and direct debit.

Resources

No migration guide is currently listed for this service.

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Sovereignty Score

Recorded assessment version: jurisdiction-ownership-2026-10-04

out of 100

Data completeness50% (Partial)

Jurisdictional(56%)

100

Excellent jurisdictional protection with EU-only legal exposure

Jurisdiction: Netherlands (EU member)
No foreign parent provider

Ownership(44%)

Strong EU ownership and control

Bootstrapped (self-funded)
Bootstrapped stage
Low acquisition risk (bootstrapped, no investor pressure) (No VC exit timeline, founders retain full control)

More dimensions coming soon

GovernanceComing soon

PortabilityComing soon

LicenseComing soon

CommunityComing soon

How missing data affects scores Submit data corrections

Provider

Congressus B.V.

Quick Facts

Legal jurisdiction: Netherlands, EU
Headquarters: Netherlands, EU
Ownership: Bootstrapped
Deployment: SaaS

Evidence and freshness

Verification date unknown. This assessment needs review.

A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.

hqCountry: other
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
Dutch phone: +31-50-211-0016, email support@congressus.nl, support hours in Dutch (maandag t/m vrijdag) - clearly Netherlands-based
hqCountry: other
Retrieved 30/01/2026, confidence 95%.
Read evidence excerpt
Dutch phone: +31-50-211-0016, email support@congressus.nl, support hours in Dutch (maandag t/m vrijdag) - clearly Netherlands-based