We code

SOGo: Open Source Groupware


Share your calendars, address books and emails in your community with a completely free and open source solution.

SOGo speaks and write standards: CardDAV, CalDAV, LDAP, IMAP and SMTP. Simplicity and compatibility.

The flexibility SOGo provides for in the choice of client devices was also widely appreciated by TSSWCB network users who are currently running a mix of Mozilla Thunderbird and Microsoft Outlook PC clients and RIM BlackBerry and Apple iPhone.

Clay Right, Network Specialist, TSSWCB

PacketFence: Open Source NAC


Fully supported, trusted network access controller.

Boasting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, powerful guest management options, 802.1X support, layer-2 isolation of problematic devices; PacketFence can be used to effectively secure networks small to very large heterogeneous networks.

PacketFence is working marvelously with over 8,000 registered devices on an infrastructure of 200-plus endpoint switches and nearly 400 wireless APs.

Gerard Duguay, Manager of Network and Telecommunication Services, Seattle Pacific University


PacketFence's sister project. A vast collection of device fingerprints to identify the devices connected to your network.

We help

UN*X Expertise

Inverse is a group of experts dedicated to help you with your UN*X needs. bash, awk, grep, Perl, Python, C. We speak the proper language to get the job done.

Network Kings

Your toaster speaks TCP. Your t-shirt is Wifi. And your users keep landing with new connected gears. Your network is the foundation of your organization. When time comes, you need new switches, new controllers, and help to setup security all over the place.


Behind every service is a server. And your users won’t care about the attack you just received or the broken air conditioner in your servers room. Avoid disasters by letting us monitor your infrastructure and feed you with precious recommendations.

Migration and Deployment

Software as time is changin’. Your user-base grows and your hardware can’t cope. We help you with new deployement and data migration.

Plans & Pricing

Duration 1 year 1 year 1 year 1 year 1 year
Support Method Web Portal Web Portal + Phone Web Portal + Phone Web Portal + Phone Web Portal + Phone
Response Time 1 business day 4 business hours 2 hours 1 hour 1 hour
Support Hours 8AM - 5PM EST/EDT - Weekdays 8AM - 5PM EST/EDT - Weekdays 24/7 24/7 24/7
Multi-Server No No Yes Yes Yes
Notifications None Security Security + Bug Fixes Security + Bug Fixes Security + Bug Fixes
Bug Fixes No No No Yes Yes
Included Incidents 5 10 30 75 Unlimited
Included Consulting Hours 2 4 Unlimited
Price $750 USD $1,500 USD $5,000 USD $10,000 USD Contact us
Order Order Order Order
Supported operating systems are
  • CentOS 7+
  • Red Hat Enterprise Linux (RHEL) 7+
  • Debian 8+
  • Ubuntu 14+
The support packages do not include
  • components installation
  • custom development
  • preventive system monitoring
  • training and documentation
The included consulting hours can be consumed for
  • architecture design and review
  • migration from another system
  • performance tuning
  • best practices

If you are looking at sponsoring the development of a specific feature for either PacketFence or SOGo, please contact us directly. We offer competitive rates for custom software development. Note also that the prices in Euros may vary depending on the US$ exchange rate.

Contact Us

Inverse inc.
7000 Park avenue
Office 407
Montreal (Quebec), Canada
H3N 1X1

Phone : +1 (514) 447-4918
Toll Free: +1 (866) 353-6153
Fax : +1 (514) 227-5394

© Inverse 2022