CRM
Twenty CRM
Modern customer management for growing teams.
Alternative to
HubSpot
Modern business software without expensive license costs.
We help companies introduce, customize, and operate modern open source software long term. Many solutions are free to use and do not charge license fees per employee. You pay only for rollout, operations, and hosting if you want us to provide it.
What we offer
01
I want to replace existing software
We replace expensive cloud software with modern open source solutions and handle the complete rollout.
02
I want to automate processes
We automate recurring workflows with AI and smart processes so your team saves time.
03
I need custom software
We build web applications, mobile apps, and internal systems when off-the-shelf software is not enough.
04
I am looking for a long-term partner
We handle hosting, maintenance, updates, and the technical operation of your software.
Cut costs. Keep control.
Many companies pay unnecessarily high software license costs every month.
For many well-known cloud solutions, there are powerful open source alternatives that can be used without a monthly software license.
Today
Multiple cloud subscriptions
- €500 / monthHubSpot
- €550 / month
Zendesk - €250 / month
Notion - €250 / month
Calendly - €70 / month
Zapier
After the switch
Open source software on your own infrastructure
Twenty CRM
Chatwoot
Docmost
Cal.com
n8n
Example savings
€1,620 per month
€19,440 per year
*This calculation is for illustration only and based on typical team plans from each vendor. Actual costs may vary by plan, user count, and feature scope. The license for many open source community editions is free. Costs may apply for servers, hosting, setup, maintenance, or custom development.
Software
Modern open source software for your company
For many well-known cloud solutions, there are powerful open source alternatives today. The software itself is often free to use and can run on your existing infrastructure or on servers we provide. We help you choose the right solution and handle setup, data migration, hosting, maintenance, and custom development.
In our software directory, you will find carefully selected open source solutions for businesses. For each product, we explain in plain language which familiar programs it replaces, what features it offers, and which companies it suits. You will also find links to official documentation, GitHub repositories, and information on installation and self-hosting. If you do not want to roll out the software yourself, we handle complete implementation, secure operations, and custom extensions.
View all softwareExpertise
We handle the entire journey.
01
Choosing the right open source solution
Together we find the software that sensibly replaces your existing programs and fits your company long term.
We compare options and find the solution that fits your company.
02
Setup and data transfer
We install the software on your existing infrastructure or on servers we provide and handle complete data migration.
Installation on your infrastructure or our servers — including full data migration.
03
Custom development
Because open source software is openly extensible, we build additional features, integrations, or complete web and mobile apps tailored to your business processes.
Additional features, integrations, and apps — tailored exactly to your processes.
04
Hosting and operations
We handle hosting, updates, backups, monitoring, and security so your systems stay reliable and available long term.
Hosting, updates, backups, and monitoring — so your systems stay available.
Basics
What is open source software?
Open source software is business software that can be used free of charge and whose source code is publicly available. You are not tied to a single vendor and retain full control over your systems.
Unlike many classic cloud solutions, numerous open source projects do not charge license fees per employee. You do not pay for the software itself — only for infrastructure and, if needed, services such as rollout, hosting, maintenance, or custom development.
The software can run on your own servers — in Azure, on Hetzner, IONOS, or your existing infrastructure. Alternatively, we operate it on servers we provide. On request, we set up secure hosting on servers in Germany or within the EU. Applications run under your own domain and integrate seamlessly into your existing IT environment.
Why do companies choose open source?
No license fees
Many open source solutions can be used free of charge. Unlike classic cloud solutions, there are often no license fees per employee.
Your infrastructure
The software can run on your existing servers or on infrastructure we provide.
Your domain
Applications run under your own domain and integrate seamlessly into your existing IT environment.
Your data
All data stays under your control and can be stored exclusively on servers in Germany or within the EU if you prefer.
Customizable
Because the source code is openly available, features can be extended, integrations built, and processes tailored exactly to your company.
One point of contact
From consulting and rollout through long-term operations, we support your company as a permanent partner.
Software packages
Recommended solutions
Many companies need several programs that work together. We assemble proven software packages and handle setup and ongoing support.
Sales & support package
Powered by Twenty, Chatwoot, Cal.com, n8n, and Formbricks
CRM, customer support, scheduling, surveys, and automation — for sales teams looking to replace cloud software with open source.
View solution →Twenty CRM · Chatwoot · Cal.com · Formbricks · n8n
Knowledge management package
Powered by Docmost, Open WebUI, Paperless-ngx, and n8n
Knowledge management, AI chat, document archive, and automation — for teams building centralized, searchable internal knowledge.
View solution →Docmost · Open WebUI · Paperless-ngx · n8n
Internal operations package
Powered by Plane, Kimai, Vaultwarden, Invoice Ninja, and n8n
Automation, projects, time tracking, password management, invoicing, and document archive — the back-office stack for efficient business processes.
View solution →n8n · Plane · Kimai · Vaultwarden · Invoice Ninja · Paperless-ngx
Case studies
Projects that show how it works
B2B Software · 45 employees
CRM migration for a growing software team
HubSpot replaced with Twenty CRM — including pipeline setup, data migration, and integration with support and scheduling.
−60% license costs, full data control, go-live in 6 weeks
Agency · 28 employees
Operations platform for digital agency
Plane, Kimai, and Chatwoot as an integrated platform — projects, time tracking, and client communication in one system.
One stack instead of 5 cloud software subscriptions, transparent project margins
Consulting · 60 employees
Knowledge hub with AI assistant
Docmost, Paperless-ngx, and Open WebUI for knowledge management — internal docs and AI search on owned infrastructure.
Faster knowledge discovery, GDPR-compliant self-hosting