Local tech-oriented groups, organized through the site Meetup.com, are host to dozens of tech meet ups monthly in the Sacramento area. Below is a curated list.

3D Hubs Sacramento
3D Printing
Founded: 3/10/2015
Average Meetups/Month*: 1.31
Meetup Event Page

All Things Oracle
Oracle, Databases, SQL
Founded: 9/30/2014
Average Meetups/Month*: 0.38
Meetup Event Page

Amazon Web Services Sacramento
Amazon Web Services
Founded: 12/12/2013
Average Meetups/Month*: 0.39
Meetup Event Page

Code for Sacramento
GovTech, Open Data, Civic Hacking
Founded: 6/5/2013
Average Meetups/Month*: 3.76
Meetup Event Page

Coder Consortium
Programming, Software Engineering
Founded: 1/5/2015
Average Meetups/Month*: 1.06
Meetup Event Page

Davis Entrepreneurs
Startups, Entrepreneurship, Innovation
Founded: 12/6/2014
Average Meetups/Month*: 0.79
Meetup Event Page

Davis Startups
Startups, Entrepreneurship, Innovation
Founded: 5/14/2010
Average Meetups/Month*: 0.70
Meetup Event Page

Elk Grove Tech Connect
Software Development, New Technology, Startups, Entrepreneurship
Founded: 8/22/2014
Average Meetups/Month*: 1.32
Meetup Event Page

Folsom Makers
Makers
Founded: 1/23/2014
Average Meetups/Month*: 2.83
Meetup Event Page

Founder Academy
Startups, Entrepreneurship
Founded: 3/12/2016
Average Meetups/Month*: 0.25
Meetup Event Page

Google Developer Group (GDG) Sacramento
Google Technologies
Founded: 3/30/2010
Average Meetups/Month*: 1.36
Meetup Event Page

HTML5 in Sacramento
HTML5
Founded: 10/23/2012
Average Meetups/Month*: 0.32
Meetup Event Page

IGDA Sacramento Game Development Group
Game Development
Founded: 7/8/2007
Average Meetups/Month*: 1.61
Meetup Event Page

InnoGrove
Startups, Entrepreneurship, Innovation
Founded: 9/21/2014
Average Meetups/Month*: 2.33
Meetup Event Page

JumpStart Davis
Startups, Entrepreneurship, Innovation
Founded: 12/5/2014
Average Meetups/Month*: 0.95
Meetup Event Page

NAWBO-Sacramento Valley
Women Small Business Owners
Founded: 7/20/2015
Average Meetups/Month*: 1.73
Meetup Event Page

Nevada County Hackers
PHP, Software Development, Python, Game Programming, JavaScript, Computer programming, Technology Startups, Mobile Startups, Hardware Startups
Founded: 10/4/2012
Average Meetups/Month*: 1.53
Meetup Event Page

SacInteractive
Web & Mobile Development
Founded: 5/26/2015
Average Meetups/Month*: 0.85
Meetup Event Page

SacMobile meetup (formerly Sac iOS Dev)
Mobile, iOS, Android
Founded: 6/9/2010
Average Meetups/Month*: 0.84
Meetup Event Page

Sacramento AgTech
AgTech
Founded: 10/9/2014
Average Meetups/Month*: 0.62
Meetup Event Page

Sacramento Angular Meetup
Angular
Founded: 10/3/2014
Average Meetups/Month*: 1.00
Meetup Event Page

Sacramento Area C
C, C++
Founded: 10/7/2015
Average Meetups/Month*: 0.56
Meetup Event Page

Sacramento Bitcoin Meetup
Bitcoin
Founded: 6/5/2013
Average Meetups/Month*: 0.95
Meetup Event Page

Sacramento Code Slingers
Software Development
Founded: 2/12/2014
Average Meetups/Month*: 0.69
Meetup Event Page

Sacramento Drupal Users Group
Drupal
Founded: 10/22/2003
Average Meetups/Month*: 1.43
Meetup Event Page

Sacramento EdTech
EdTech
Founded: 8/14/2013
Average Meetups/Month*: 0.26
Meetup Event Page

Sacramento JavaScript Meetup
Javascript
Founded: 10/16/2014
Average Meetups/Month*: 1.35
Meetup Event Page

Sacramento SQL Server User Group
SQL
Founded: 9/14/2015
Average Meetups/Month*: 1.11
Meetup Event Page

Sacramento User Experience Design (SUX!)
User Experience, UI
Founded: 1/27/2013
Average Meetups/Month*: 0.44
Meetup Event Page

Sacramento Virtual Reality
Virtual Reality
Founded: 4/8/2014
Average Meetups/Month*: 0.22
Meetup Event Page

Sacramento Women in Data Science
Data Science
Founded: 8/21/2015
Average Meetups/Month*: 1.00
Meetup Event Page

Sacramento WordPress
WordPress
Founded: 5/4/2010
Average Meetups/Month*: 0.73
Meetup Event Page

Startup Founder 101
Startups, Entrepreneurship, Innovation
Founded: 11/10/2015
Average Meetups/Month*: 0.88
Meetup Event Page

Startup Grind Sacramento
Startups, Entrepreneurship, Innovation
Founded: 3/18/2014
Average Meetups/Month*: 1.81
Meetup Event Page

Tableau & Alteryx Community – Sacramento
Tableau, Alteryx
Founded: 10/3/2014
Average Meetups/Month*: 0.05
Meetup Event Page

Tech Entrepreneurs in Davis
Startups, Entrepreneurship, Innovation
Founded: 1/2/2012
Average Meetups/Month*: 0.76
Meetup Event Page

The Curious Forge
Makers
Founded: 9/17/2014
Average Meetups/Month*: 1.86
Meetup Event Page

The Sacramento Ruby Meetup
Ruby
Founded: 5/6/2008
Average Meetups/Month*: 1.34
Meetup Event Page

The Sacramento Web Developers Group
Web Development
Founded: 10/8/2002
Average Meetups/Month*: 1.10
Meetup Event Page

Velocity VC Meetups for NorCal Entrepreneurs & Investors
Startups, Entrepreneurship, Innovation
Founded: 5/12/2015
Average Meetups/Month*: 0.71
Meetup Event Page

Women Who Code Sacramento
Open Source, Women in Technology, Software Development, Women Who Code, Web Development, Programming Languages, Android Development, Hacking, Mobile Development, Computer programming, iOS Development, WWC
Founded: 10/9/2014
Average Meetups/Month*: 2.19
Meetup Event Page

* Average Meetups/Month is a rate calculated by the number of months since being founded divided by total number of Meetup events held as of July 13, 2016.