- NebraskaJS - Javascript
- DC402 - Omaha DEFCON Group (hacker convention held annually in Las Vegas, Nevada)
- OLUG - Omaha Linux User Group
- GDG Omaha/Mobile Meetup - Google Developer Group
- Women in Technology of the Heartland
- Nebraska Women of Color in Tech Meetup Group
- Agile for Defense
- OJUG - Omaha Java User Group
- Omaha coworking group (Slack) - Wednesdays, various coffee shops
- Learn Swift Omaha
- Tech Talkers
- AI Omaha
- Nebraska Blockchain Meetup
- Nebraska Data Analytics Forum
- Omaha AWS Meetup
- Enterprise Architecture Alliance
- Omaha Women in Cybersecurity
- Omaha 3D Nerds
- Omaha Game Developer's Association
- Omaha 365 User Group
List stolen from @doleraj