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 13345Mandy Ivy
Full Stack Developers Israel Tel Aviv-YafoILFullstackers 11671Lior Kanfi
Code Crew - Learn to Code! New YorkUSSwabbies 11585Jamal
Le Wagon São Paulo - Coding Bootcamp São PauloBRcoders 8881Mathieu Le Roux
106 Miles Palo AltoUS106ers 8879Adam
Tech In Motion: Orange County IrvineUSTechnologists 7688Mandy Walker
she codes(tlv); Tel Aviv-YafoILCoders 7494Ruth Polachek
Hacker Hours New YorkUSHaxors 7249Aidan Feldman
New York MongoDB User Group New YorkUSMembers 6567MongoDB
Geekfest ChicagoUSGeeks 6066Geekfest
Ironhack Barcelona - UX Design & Tech School BarcelonaESIronhackers 6031Eva Peris
The San Francisco Ruby Meetup Group San FranciscoUSRuby enthusiasts 6005Bosco So
Hack Reactor: Learn to Code San FranciscoUSEngineers 5864Tyler Lambe
Code for Boston CambridgeUSCivic Innovators 5762Code for America Brigade
StarsConf meetup SantiagoCLSlackers 5599Manuel Suarez
Swift Language User Group (San Francisco) San FranciscoUSSwifters 5450Jean-Pierre Simard
Learn to Code San Francisco San FranciscoUSMembers 5303Galvanize
NYC.rb New YorkUSRubyists 5203Dmitri Nesterenko
I am Happy Project - Ni Dilli, Indian Ni DilliINHappy People 5101I am Happy Project
Bay Area Hackathons San FranciscoUSHackers 4906Soham M(InterviewKickstart.com)
Women Who Code Boston BostonUSCoders 4803Women Who Code
Learn Code in Atlanta (Study Groups) AtlantaUSLearners 4767Ivy Rueb
Find a Tech Job LondonGBCareer Networkers 4743Samantha hepburn
Chicago Women Developers ChicagoUSAmazing People 4741Melissa Pierce
ChicagoRuby ChicagoUSRubyists 4688Nicole Carpenter
Real World React San FranciscoUSDevelopers 4603Benjamin Dunphy
San Francisco Ruby on Rails Group San FranciscoUSMembers 4510Ken Fromm
Developer User Group JohannesburgZASoftware Developers 4344Robert MacLean
Pittsburgh Code & Supply PittsburghUSMembers 4269Code & Supply
Toronto Hack and Tell TorontoCAHackers 4234Alex E
Women Who Code Austin AustinUSCoders 4109Women Who Code
NYC on Rails New YorkUSRuby developers 4088Avi Flombaum
Dev Bootcamp NYC Events and Workshops New YorkUSDevs 4049Eric David Benari
Delhi MongoDB User Group DelhiINMembers 4046MongoDB
Le Wagon Berlin - Coding Bootcamp BerlinDEMembers 4000Philipp von Hammerstein
Ruby and Rails Melbourne MelbourneAURubyists 3930reinteractive Meetups
Hack && Tell New YorkUSHackers 3874Danielle Sucher
Melbourne Web Developers MelbourneAUDevs 3816Emma
Learn to Code Austin AustinUSAspiring Coders 3798Galvanize
Community Hack Night Los AngelesUSMembers 3716Dubie
LA Tech and Business Innovators Santa MonicaUSInnovators 3693Christopher Hammond
Data Wranglers DC WashingtonUSData Wranglers 3670Data Community DC
Tech Talent South - Atlanta AtlantaUSMembers 3595Tech Talent South
The Opportunity Hub - Atlanta AtlantaUSMembers 3523Rodney Sampson
Memphis Technology User Groups MemphisUSTechies 3398Bryan Robinson
Tech Talk DC ArlingtonUSPolyglots 3259Doguhan Uluca
Le Wagon Lisbon - Coding Bootcamp LisbonPTapprentices 3248Shannon Graybill
Learn to Code Colorado DenverUSMembers 3186Galvanize
San Francisco MongoDB User Group San FranciscoUSMongoDB Fans 3166MongoDB
Amsterdam Python Meetup Group AmsterdamNLPythonistas 3160Byte
NYC Tech Talks New YorkUSNYC Techies 3139Greg Whalin
DC Ruby Users Group WashingtonUSRuby enthusiasts 3059Geoff Harcourt
Dev Paraná MaringáBRDesenvolvedores 3044Fernando Fabricio dos Santos
CodeLearn Hong Kong Hong KongHKLearners & Thinkers 3035Zak Burki
Paris.rb ParisFRRubyistes 3026Thibaut Assus
Geeknight Coimbatore CoimbatoreINMembers 2846Selvakumar Natesan
Carbon Five SF Talk Nights San FranciscoUSmembers 2779Carbon Five
Toronto Ruby Brigade TorontoCARubyists 2757Luke Reeves
Le Wagon Amsterdam - Coding Bootcamp AmsterdamNLWagoners 2739Anne Collet
SF Code & Coffee San FranciscoUSMembers 2726Dylan
Silicon Valley Ruby Meetup San JoseUSRubyists 2689Bala Paranj
EBANX Meetups CuritibaBRMembers 2684EBANX Meetups
Pune Ruby Users Group PuneINRubyists 2683Gautam Rege
Vancouver Ruby Meetup Group VancouverCARuby Developers 2671Philippe Creux
Atlanta Ruby Meetup Group AtlantaUSRuby programmers 2642Riaz
Singapore Ruby Group SingaporeSGRubyists 2626Winston Teo
Silicon Valley Ruby on Rails Palo AltoUSRuby on Rails Engineers 2550Amit Gadhia
Women Who Code LA Culver CityUSCoders 2546Women Who Code
Charlotte Devs CharlotteUSDevs 2532Alyssa Lemon
Women Who Code Delhi DelhiINWomen Who Code-rs 2530Women Who Code
San Francisco Creative Coders San FranciscoUSTechnologists 2496Christopher Marsh
Dev Dialogue New YorkUSDevelopers 2474Matthew Jording
Marketing for Non-Marketers San Francisco San FranciscoUSDigital Marketing Geeks 2459Eva from Product School
Developing with Data in San Francisco San FranciscoUSDevelopers 2448Scott Mitchell
Code till Dawn Saint LouisUSCoders 2447Nicholas Diaz
Nairuby NairobiKEMembers 2438Christian Reuterwall
Anyone Can Learn To Code Chicago ChicagoUSCoders 2436Jay Wengrow
Le Wagon Tokyo - Coding Bootcamp TokyoJPWagoners 2412Sylvain Pierre
Women Who Code Manila ManilaPHAwesome Women Coders 2411Women Who Code
Learn to Code at the Denver Library DenverUSMembers 2407Denver Public Library
Ruby on Rails Oceania Sydney SydneyAURubyists 2400reinteractive Meetups
Carbon Five LA Hack Nights Santa MonicaUSHackers 2386Carbon Five
Ruby Perú LimaPERubyistas 2376Able
Chilango Dev México CityMXDevs 2362Eric Northam
Madrid MongoDB User Group MadridESMembers 2329MongoDB
Azure Community Singapore (ACS) SingaporeSGAzure Community Members 2323Riza Marhaban
Women Who Code Mexico City México CityMXCoders 2322Women Who Code
Holberton School San FranciscoUSSeahorses 2310Charles Bathel
Techstarters Vancouver VancouverCATechstarters 2209Sarah Foot
Learn Code in LA Los AngelesUSLearners 2196Ivy Rueb
Dubai DevNights DubaiAEMembers 2172Seb Dietzel
Denver Hack Nite DenverUSHacks 2160Josh Robinson
GolangNYC New YorkUSGophers 2153Gray Herter
Chennai.rb Ruby User Group ChennaiINRubyists 2130Steve Robinson
Junior Developers Singapore SingaporeSGMembers 2091Michael Cheng
Bangalore Ruby Users Group BangaloreINRubyists 2088Swanand Pagnis
The Los Angeles Ruby/Rails Meetup Group Los AngelesUSRuby programmers 2081Claudio B.
The Iron Yard - Charleston CharlestonUSMembers 2081Tom Wilson
DomCode UtrechtNLCoders 2038Lucas van Lierop
Paris MongoDB User Group ParisFRMembers 2035MongoDB
The Iron Yard Austin AustinUSProgrammers and Designers 2033Justin Herrick
Austin Developer Community AustinUSProgrammers & Developers 1994Chris Requena
Dublin DevOps Meetup DublinIEFriends 1973Horatiu Muresan
Lehi Developers User Group LehiUSDuggers 1940Jeffrey Walter
Greetings, SVBBDev - BlackBerry App Developers! Santa ClaraUSSVBBDev - BB App Developers 1939Ping Bartley
New York Ruby on Rails New YorkUSRails Engineers 1917Michael Latulippe
LA Web Application Developers Meetup Los AngelesUSWeb Software Engineers 1906will jessup
Hire Ruby on Rails Developers San FranciscoUSdevs and companies 1886Eric Siegfried
Hacker News Chicago Meetup ChicagoUSHackers 1881Eric L
Berlin Startup Culture (BSC) BerlinDEMembers 1880George Papa
Flatiron School Seattle Coding Community SeattleUSLearners 1872Katharine Lucic
Austin Software Engineers & App Developers AustinUSSoftware Engineers/Developers 1852Chris Requena
SoundCloud Tech Meetups - Berlin BerlinDEpeople 1850Vincent Garrigues
Pittsburgh Agile (@PittAgile | #PittAgile) PittsburghUSAgilistas 1840Jon R. Stahl
Landing Meetups LisbonPTMembers 1838Landing.jobs
The East Bay Ruby Meetup Group BerkeleyUSRuby programmers 1828Bala Paranj
Porto Codes PortoPTVariables 1813Ricardo Mendes
Le Wagon Barcelona - Coding Bootcamp BarcelonaESfuture coders 1811Gus De Vita
Montana Programmers BozemanUSMontana Programmers 1810Wes
Le Wagon TLV - Coding Bootcamp Tel Aviv-YafoILMembers 1804Joy Phua
Open Source Hong Kong Hong KongHKMembers 1791Sammy Fung
The Seattle Ruby on Rails Developers Meetup Group SeattleUSRailers 1767Bill Harding
Turing Community Events DenverUSMembers 1751Jeff Casimir
London Code Dojo LondonGBDevelopers 1749@sleepyfox
The Triangle Ruby Brigade (Triangle.rb) RaleighUSRubyists 1744Brandon Mathis
Girls Coding Club HoustonUSCoders 1738Amanda Shih
Leeds Digital LeedsGBMembers 1735Natasha Sayce-Zelem
Ottawa Ruby – we <3 programming OttawaCARuby Ninjas 1729Michael Prendergast
Amsterdam.rb AmsterdamNLRubyists 1724Rayta van Rijswijk
N-Languages New YorkUSN-langers 1710EVIE B0RTHWICK
Jeddah Software Developers JiddahSADevelopers 1706Aaron Q. Johnson
Tech nights in Medellín MedellínCOMembers 1698Sebastian Miranda
Web Innovations- Houston HoustonUSMembers 1665Chen Sun of WebAndNet.com
BASE (Birmingham Alabama Software Enthusiasts) BirminghamUSSoftware Enthusiasts 1656David Lormor
Polyglot.LA Los AngelesUSpolyglots 1639Polyglot.LA Organizer Team
Coded in Braam JohannesburgZATechies 1638Jamie Steeg
Le Wagon Bordeaux - Coding Bootcamp BordeauxFRApprentis 1637Bertrand
Quality Assurance BrooklynUSMembers 1629Anthony
Coding For Absolute Beginners - Delhi NCR DelhiINNinjas 1626Progate India
Paris Ruby Workshop ParisFRRubyistes 1625Patrice Cadiot
Learn to Code - for Complete Beginners in San Francisco. San FranciscoUSCoders In Training 1619Andy Tiffany
Women Who Code Tokyo TokyoJPCoders 1615Women Who Code
Ruby Hacknight - London LondonGBRubyists 1605Jairo Diaz
Rails Taiwan TaipeiTWrubyists 1596xdite
Delhi NCR Ruby Meetup Group DelhiINRubyists 1593Prabhat Gupta
Le Wagon Rio de Janeiro - Coding Bootcamp Rio de JaneiroBRCoders 1587Fernando Americano
SF Front-End Developers: Experience Engineering San FranciscoUSExperience Engineers 1574Ahmad Ansari
Cleveland Agile Group (#CleAG) ClevelandUSAgilistas 1565Jon R. Stahl
Developers Day powered by kariera.gr AthensGRFellows 1562kariera.gr
NewHaven.IO New HavenUSTech Minded People 1560Tom Reznick
Ruby Business (UK) LondonGBrubyists 1556Jairo Diaz
Andes Tech Talks Long Island CityUSTechnologist 1555Will Aroc
RubyOn - Ruby On Rails - São PauloBRRubistas 1535Leandro Afonso
TOKYO Rails Meetup TokyoJPMembers 1527Leszek
The Brisbane Ruby and Rails BrisbaneAURuby/Rails developers 1525Nigel
NYC Ruby Women New YorkUSRubyists 1521Chrys Wu
Nola Hack Night New OrleansUSHackers 1503Cory Fabre
Codewords Pune PuneINCraftsmen 1490Karan Rai
Hacks/Hackers Atlanta AtlantaUSMembers 1472Hacks/Hackers
YulDev MontréalCADev 1462Daniel LeBlanc
Enspiral Dev Academy Wellington WellingtonNZFriends of Dev Academy 1428Enspiral Dev Academy
NYC Apache Lucene/Solr Meetup New YorkUSLuceners 1418Grant Ingersoll
Krakow Ruby Users Group (KRUG) KrakówPLRuby enthusiasts 1408Sebastian Bobrowski
Golang SkyNet Global . (Golang Global) SeoulKRGeeks 1404Eric Kim Hoik
Alchemy Code Lab PortlandUSAlchemists 1390Marty Nelson
Denver.rb DenverUSrubyists 1373Jason Waldrip
B'more on Rails BaltimoreUSRubyists 1368Chris Strom
The Sacramento Ruby Meetup SacramentoUSRubyists 1359Christopher Haupt
Women Who Code Melbourne MelbourneAUCoders 1359Women Who Code
Ruby Ireland DublinIERuby Irelanders 1340Declan
Arlington Ruby ArlingtonUSRubyists 1330Jim Gay
Boulder Ruby Group BoulderUSRubyists 1328Rylan Bowers
Advance in your career - Udacity London Meetup LondonGBUdacians 1326Scott Wilder
Medellín.rb MedellínCORubyists 1318Oscar Rendón
Stockholm Ruby StockholmSERubyists 1312Martin Svalin
Full Stack PDX PortlandUSEntrepreneurs and Engineers 1312Chris Hough
Montreal.rb MontréalCARubyists 1308Sophie Déziel
Le Wagon Lille - Coding Bootcamp LilleFRApprentis 1305François-Xavier Abraham
Le Wagon Mexico - Coding Bootcamp México CityMXMembres 1298Clement Picard-Zivy
ThoughtWorks Belo Horizonte Coding Dojos Belo HorizonteBRCoders 1289Adriano Lisboa
Code Fellows Seattle Meetup SeattleUSMembers 1284Code Fellows
LEARN academy San DiegoUSLEARNers 1276Chelsea Kaufman
Orange County Ruby Users Group (OCRuby) IrvineUSRocking Rubyists 1272Forrest Chang
WebApp Builders - Fullstack Projects (LA Eastside) GlendaleUSWebApp-Builders 1265Kobi
The jQuery Boston Meetup Group BostonUSMembers 1262Alessandra Rosenberg
Le Wagon Melbourne - Coding Bootcamp MelbourneAUCreatives 1259Paal at Le Wagon Coding Bootcamp
Graduate Developer Community LondonGBDevelopers 1258Barry Cranford
Jax Code And Coffee JacksonvilleUSMembers 1232Paul Elliott
SD Ruby (Ruby on Rails Enthusiasts) La JollaUSRubyists 1222Patrick Crowley
SFBay Apache Lucene/Solr Meetup San MateoUSLuceners 1221Marcus Alexander Eagan
Ruby Bogotá BogotáCODesarrolladores Ruby 1214Nathaly Villamor
Craft Meetup BudapestHUCraftsman 1208Gabriella Mihaly
IT 3city GdanskPLMembers 1203Jadex
Bitnami Sevilla SevillaESbitcoders 1202Beltran
Philly.rb PhiladelphiaUSRubyists 1185Ernesto Tagwerker
[MumbaiRB] Mumbai Ruby Meetup MumbaiINRubyist 1183Bilal Budhani
Mexico City MongoDB User Group México CityMXMongoDB Fans 1182MongoDB
Full Stack Talks CarlsbadUSDesigners & Developers 1182Michael Roberts Jr
All Things API: Denver DenverUSAPI Aficionados 1180Tom Noland
Pune Java Enthusiasts PuneINMembers 1166Rahul Vaidya