Here are the top 200 Meetup Groups according to Meetup.com

Name City Country Focus Members Contact Name
Tech in Motion Events: San Francisco San FranciscoUSTechnologists 13329Mandy Ivy
Full Stack Developers Israel Tel Aviv-YafoILFullstackers 11588Lior Kanfi
Code Crew - Learn to Code! New YorkUSSwabbies 11559Jamal
106 Miles Palo AltoUS106ers 8857Adam
Le Wagon São Paulo - Coding Bootcamp São PauloBRcoders 8797Mathieu Le Roux
Tech In Motion: Orange County IrvineUSTechnologists 7681Mandy Walker
she codes(tlv); Tel Aviv-YafoILCoders 7490Ruth Polachek
Hacker Hours New YorkUSHaxors 7151Aidan Feldman
New York MongoDB User Group New YorkUSMembers 6546MongoDB
#Tech - Sydney SydneyAUMembers 6516Love
Geekfest ChicagoUSGeeks 6082Geekfest
The San Francisco Ruby Meetup Group San FranciscoUSRuby enthusiasts 6002Bosco So
Ironhack Barcelona - UX Design & Tech School BarcelonaESIronhackers 5946Eva Peris
Hack Reactor: Learn to Code San FranciscoUSEngineers 5878Tyler Lambe
Code for Boston CambridgeUSCivic Innovators 5686Code for America Brigade
StarsConf meetup SantiagoCLSlackers 5567Manuel Suarez
Swift Language User Group (San Francisco) San FranciscoUSSwifters 5431Jean-Pierre Simard
Learn to Code San Francisco San FranciscoUSMembers 5258Galvanize
NYC.rb New YorkUSRubyists 5201Rashaun Snuggs Stovall
I am Happy Project - Ni Dilli, Indian Ni DilliINHappy People 5098I am Happy Project
Bay Area Hackathons San FranciscoUSHackers 4906Raj
Chicago Women Developers ChicagoUSAmazing People 4693Melissa Pierce
ChicagoRuby ChicagoUSRubyists 4674Nicole Carpenter
Women Who Code Boston BostonUSCoders 4674Women Who Code
Find a Tech Job LondonGBCareer Networkers 4645Samantha hepburn
Learn Code in Atlanta (Study Groups) AtlantaUSLearners 4613Ivy Rueb
Real World React San FranciscoUSDevelopers 4579Benjamin Dunphy
San Francisco Ruby on Rails Group San FranciscoUSMembers 4510Ken Fromm
Developer User Group JohannesburgZASoftware Developers 4257Robert MacLean
Pittsburgh Code & Supply PittsburghUSMembers 4233Code & Supply
Toronto Hack and Tell TorontoCAHackers 4201Alex E
NYC on Rails New YorkUSRuby developers 4099Avi Flombaum
Dev Bootcamp NYC Events and Workshops New YorkUSDevs 4062Eric David Benari
Women Who Code Austin AustinUSCoders 4052Women Who Code
Delhi MongoDB User Group DelhiINMembers 4002MongoDB
Ruby and Rails Melbourne MelbourneAURubyists 3885reinteractive Meetups
Hack && Tell New YorkUSHackers 3875Danielle Sucher
Le Wagon Berlin - Coding Bootcamp BerlinDEMembers 3824Philipp von Hammerstein
Melbourne Web Developers MelbourneAUDevs 3810Emma
Learn to Code Austin AustinUSAspiring Coders 3736Galvanize
Community Hack Night Los AngelesUSMembers 3675Dubie
LA Tech and Business Innovators Santa MonicaUSInnovators 3673Christopher Hammond
Data Wranglers DC WashingtonUSData Wranglers 3663Data Community DC
The Opportunity Hub - Atlanta AtlantaUSMembers 3526Rodney Sampson
Tech Talent South - Atlanta AtlantaUSMembers 3505Tech Talent South
Memphis Technology User Groups MemphisUSTechies 3348Bryan Robinson
Tech Talk DC ArlingtonUSPolyglots 3226Doguhan Uluca
Le Wagon Lisbon - Coding Bootcamp LisbonPTapprentices 3170Shannon Graybill
Learn to Code Colorado DenverUSMembers 3166Galvanize
San Francisco MongoDB User Group San FranciscoUSMongoDB Fans 3164MongoDB
Amsterdam Python Meetup Group AmsterdamNLPythonistas 3152Byte
NYC Tech Talks New YorkUSNYC Techies 3140Greg Whalin
DC Ruby Users Group WashingtonUSRuby enthusiasts 3057Geoff Harcourt
CodeLearn Hong Kong Hong KongHKLearners & Thinkers 3038Zak Burki
Paris.rb ParisFRRubyistes 3013Thibaut Assus
Dev Paraná MaringáBRDesenvolvedores 2951Fernando Fabricio dos Santos
Geeknight Coimbatore CoimbatoreINMembers 2787Selvakumar Natesan
Carbon Five SF Talk Nights San FranciscoUSmembers 2764Carbon Five
Toronto Ruby Brigade TorontoCARubyists 2752Luke Reeves
Le Wagon Amsterdam - Coding Bootcamp AmsterdamNLWagoners 2703Anne Collet
Silicon Valley Ruby Meetup San JoseUSRubyists 2697Bala Paranj
SF Code & Coffee San FranciscoUSMembers 2664Dylan
Vancouver Ruby Meetup Group VancouverCARuby Developers 2660Philippe Creux
Pune Ruby Users Group PuneINRubyists 2654Gautam Rege
EBANX Meetups CuritibaBRMembers 2635EBANX Meetups
Atlanta Ruby Meetup Group AtlantaUSRuby programmers 2634Riaz
Singapore Ruby Group SingaporeSGRubyists 2620Winston Teo
Silicon Valley Ruby on Rails Palo AltoUSRuby on Rails Engineers 2552Amit Gadhia
San Francisco Creative Coders San FranciscoUSTechnologists 2499Christopher Marsh
Women Who Code LA Culver CityUSCoders 2499Women Who Code
Women Who Code Delhi DelhiINWomen Who Code-rs 2494Women Who Code
Dev Dialogue New YorkUSDevelopers 2471Matthew Jording
Marketing for Non-Marketers San Francisco San FranciscoUSDigital Marketing Geeks 2463Eva from Product School
Developing with Data in San Francisco San FranciscoUSDevelopers 2450Scott Mitchell
Anyone Can Learn To Code Chicago ChicagoUSCoders 2441Jay Wengrow
Charlotte Devs CharlotteUSDevs 2415Alyssa Lemon
Learn to Code at the Denver Library DenverUSMembers 2397Denver Public Library
Code till Dawn Saint LouisUSCoders 2396Nicholas Diaz
Carbon Five LA Hack Nights Santa MonicaUSHackers 2392Carbon Five
Ruby on Rails Oceania Sydney SydneyAURubyists 2392reinteractive Meetups
Ruby Perú LimaPERubyistas 2369Able
Women Who Code Manila ManilaPHAwesome Women Coders 2367Women Who Code
Chilango Dev México CityMXDevs 2363Eric Northam
Nairuby NairobiKEMembers 2354Christian Reuterwall
Le Wagon Tokyo - Coding Bootcamp TokyoJPWagoners 2334Sylvain Pierre
Madrid MongoDB User Group MadridESMembers 2328MongoDB
Azure Community Singapore (ACS) SingaporeSGAzure Community Members 2269Riza Marhaban
Women Who Code Mexico City México CityMXCoders 2248Women Who Code
Techstarters Vancouver VancouverCATechstarters 2215Sarah Foot
Dubai DevNights DubaiAEMembers 2173Seb Dietzel
Holberton School San FranciscoUSSeahorses 2169Julien Barbier
Denver Hack Nite DenverUSHacks 2151Josh Robinson
Learn Code in LA Los AngelesUSLearners 2142Ivy Rueb
Chennai.rb Ruby User Group ChennaiINRubyists 2130Steve Robinson
The Iron Yard - Charleston CharlestonUSMembers 2090Tom Wilson
The Los Angeles Ruby/Rails Meetup Group Los AngelesUSRuby programmers 2088Claudio B.
Bangalore Ruby Users Group BangaloreINRubyists 2076Swanand Pagnis
GolangNYC New YorkUSGophers 2076Gray Herter
The Iron Yard Austin AustinUSProgrammers and Designers 2039Justin Herrick
Paris MongoDB User Group ParisFRMembers 2037MongoDB
DomCode UtrechtNLCoders 2020Lucas van Lierop
Austin Developer Community AustinUSProgrammers & Developers 1993George Pazdral
Junior Developers Singapore SingaporeSGMembers 1971Michael Cheng
Dublin DevOps Meetup DublinIEFriends 1962Horatiu Muresan
Greetings, SVBBDev - BlackBerry App Developers! Santa ClaraUSSVBBDev - BB App Developers 1940Ping Bartley
New York Ruby on Rails New YorkUSRails Engineers 1921Michael Latulippe
LA Web Application Developers Meetup Los AngelesUSWeb Software Engineers 1907will jessup
Lehi Developers User Group LehiUSDuggers 1903Jeffrey Walter
Hire Ruby on Rails Developers San FranciscoUSdevs and companies 1885Eric Siegfried
Hacker News Chicago Meetup ChicagoUSHackers 1884Eric L
Berlin Startup Culture (BSC) BerlinDEMembers 1877George Papa
SoundCloud Tech Meetups - Berlin BerlinDEpeople 1848Vincent Garrigues
Landing Meetups LisbonPTMembers 1828Landing.jobs
Pittsburgh Agile (@PittAgile | #PittAgile) PittsburghUSAgilistas 1825Jon R. Stahl
The East Bay Ruby Meetup Group BerkeleyUSRuby programmers 1824Bala Paranj
Austin Software Engineers & App Developers AustinUSSoftware Engineers/Developers 1807Chris Requena
Montana Programmers BozemanUSMontana Programmers 1802Wes
Le Wagon Barcelona - Coding Bootcamp BarcelonaESfuture coders 1794Gus De Vita
Porto Codes PortoPTVariables 1787Ricardo Mendes
Flatiron School Seattle Coding Community SeattleUSLearners 1787Katharine Lucic
Open Source Hong Kong Hong KongHKMembers 1777Sammy Fung
The Seattle Ruby on Rails Developers Meetup Group SeattleUSRailers 1769Bill Harding
The Triangle Ruby Brigade (Triangle.rb) RaleighUSRubyists 1739Brandon Mathis
Turing Community Events DenverUSMembers 1735Jeff Casimir
Leeds Digital LeedsGBMembers 1733Natasha Sayce-Zelem
Ottawa Ruby – we <3 programming OttawaCARuby Ninjas 1720Michael Prendergast
London Code Dojo LondonGBDevelopers 1716@sleepyfox
Amsterdam.rb AmsterdamNLRubyists 1715Rayta van Rijswijk
N-Languages New YorkUSN-langers 1709EVIE B0RTHWICK
Girls Coding Club HoustonUSCoders 1692Amanda Shih
Tech nights in Medellín MedellínCOMembers 1683Sebastian Miranda
Jeddah Software Developers JiddahSADevelopers 1677Aaron Q. Johnson
Web Innovations- Houston HoustonUSMembers 1666Chen Sun of WebAndNet.com
Coded in Braam JohannesburgZATechies 1639Jamie Steeg
Le Wagon Bordeaux - Coding Bootcamp BordeauxFRApprentis 1632Bertrand
Quality Assurance BrooklynUSMembers 1622Anthony
BASE (Birmingham Alabama Software Enthusiasts) BirminghamUSSoftware Enthusiasts 1621David Lormor
Polyglot.LA Los AngelesUSpolyglots 1618Polyglot.LA Organizer Team
Le Wagon TLV - Coding Bootcamp Tel Aviv-YafoILMembers 1615Rabea Bader
Learn to Code - for Complete Beginners in San Francisco. San FranciscoUSCoders In Training 1611Andy Tiffany
Paris Ruby Workshop ParisFRRubyistes 1610Patrice Cadiot
Ruby Hacknight - London LondonGBRubyists 1594Jairo Diaz
Rails Taiwan TaipeiTWrubyists 1593xdite
Delhi NCR Ruby Meetup Group DelhiINRubyists 1593Prabhat Gupta
SF Front-End Developers: Experience Engineering San FranciscoUSExperience Engineers 1574Ahmad Ansari
Le Wagon Rio de Janeiro - Coding Bootcamp Rio de JaneiroBRCoders 1574Fernando Americano
Developers Day powered by kariera.gr AthensGRFellows 1562kariera.gr
Ruby Business (UK) LondonGBrubyists 1558Jairo Diaz
Andes Tech Talks Long Island CityUSTechnologist 1555Will Aroc
NewHaven.IO New HavenUSTech Minded People 1548Tom Reznick
Cleveland Agile Group (#CleAG) ClevelandUSAgilistas 1540Jon R. Stahl
TOKYO Rails Meetup TokyoJPMembers 1529Leszek
Women Who Code Tokyo TokyoJPCoders 1528Women Who Code
The Brisbane Ruby and Rails BrisbaneAURuby/Rails developers 1508Nigel
RubyOn - Ruby On Rails - São PauloBRRubistas 1506Leandro Afonso
NYC Ruby Women New YorkUSRubyists 1504Chrys Wu
Nola Hack Night New OrleansUSHackers 1493Cory Fabre
Codewords Pune PuneINCraftsmen 1478Karan Rai
Hacks/Hackers Atlanta AtlantaUSMembers 1470Hacks/Hackers
YulDev MontréalCADev 1463Daniel LeBlanc
Coding For Absolute Beginners - Delhi NCR DelhiINNinjas 1458Progate India
Enspiral Dev Academy Wellington WellingtonNZFriends of Dev Academy 1413Enspiral Dev Academy
NYC Apache Lucene/Solr Meetup New YorkUSLuceners 1406Grant Ingersoll
Krakow Ruby Users Group (KRUG) KrakówPLRuby enthusiasts 1401Sebastian Bobrowski
Golang SkyNet Global . (Golang Global) SeoulKRGeeks 1401Eric Kim Hoik
Alchemy Code Lab PortlandUSAlchemists 1379Marty Nelson
Denver.rb DenverUSrubyists 1372Jason Waldrip
B'more on Rails BaltimoreUSRubyists 1364Chris Strom
The Sacramento Ruby Meetup SacramentoUSRubyists 1351Christopher Haupt
Ruby Ireland DublinIERuby Irelanders 1341Declan
Arlington Ruby ArlingtonUSRubyists 1330Jim Gay
Advance in your career - Udacity London Meetup LondonGBUdacians 1327Scott Wilder
Boulder Ruby Group BoulderUSRubyists 1318Marty Haught
Medellín.rb MedellínCORubyists 1317Oscar Rendón
Stockholm Ruby StockholmSERubyists 1309Martin Svalin
Montreal.rb MontréalCARubyists 1300Sophie Déziel
Le Wagon Lille - Coding Bootcamp LilleFRApprentis 1293François-Xavier Abraham
Full Stack PDX PortlandUSEntrepreneurs and Engineers 1293Chris Hough
ThoughtWorks Belo Horizonte Coding Dojos Belo HorizonteBRCoders 1288Adriano Lisboa
Code Fellows Seattle Meetup SeattleUSMembers 1284Code Fellows
The jQuery Boston Meetup Group BostonUSMembers 1269Alessandra Rosenberg
Orange County Ruby Users Group (OCRuby) IrvineUSRocking Rubyists 1267Forrest Chang
WebApp Builders - Fullstack Projects (LA Eastside) GlendaleUSWebApp-Builders 1266Kobi
Women Who Code Melbourne MelbourneAUCoders 1258Women Who Code
LEARN academy San DiegoUSLEARNers 1258Chelsea Kaufman
Graduate Developer Community LondonGBDevelopers 1254Barry Cranford
Le Wagon Mexico - Coding Bootcamp México CityMXMembres 1245Clement Picard-Zivy
Le Wagon Melbourne - Coding Bootcamp MelbourneAUCreatives 1242Paal at Le Wagon Coding Bootcamp
SFBay Apache Lucene/Solr Meetup San MateoUSLuceners 1221Marcus Alexander Eagan
Jax Code And Coffee JacksonvilleUSMembers 1220Paul Elliott
SD Ruby (Ruby on Rails Enthusiasts) La JollaUSRubyists 1218Patrick Crowley
Bitnami Sevilla SevillaESbitcoders 1202Beltran
IT 3city GdanskPLMembers 1191Jadex
Ruby Bogotá BogotáCODesarrolladores Ruby 1190Nathaly Villamor
Craft Meetup BudapestHUCraftsman 1190Gabriella Mihaly
Philly.rb PhiladelphiaUSRubyists 1187Ernesto Tagwerker
[MumbaiRB] Mumbai Ruby Meetup MumbaiINRubyist 1185Bilal Budhani
All Things API: Denver DenverUSAPI Aficionados 1183Tom Noland
Full Stack Talks CarlsbadUSDesigners & Developers 1182Michael Roberts Jr
Ruby Nuby™ New YorkUSNubies and Rubyists 1156Malcolm Arnold