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

Name City Country Focus Members Contact Name
SQL NYC, The NoSQL & NewSQL Database Meetup New YorkUSData Enthusiasts 22209Eric David Benari
Tech in Motion Events: San Francisco San FranciscoUSTechnologists 13095Mandy Ivy
Tech in Motion: New York City New YorkUSTechnologists 11584Mandy Ivy
Tech in Motion: Boston BostonUSTechnologists 10513Mandy Walker
New York Software Engineers (NYSE) New YorkUSSoftware Engineers 8628Michael Latulippe
106 Miles Palo AltoUS106ers 8586Adam
Tech in Motion: Silicon Valley San JoseUSTechnologists 8257Mandy
Tech in Motion: Chicago ChicagoUSTechnologists 7960Mandy Walker
Bay Area Software Engineers (BASE) San FranciscoUSSoftware Engineers 7670Michael Latulippe
Tech in Motion: Los Angeles Los AngelesUSTechnologists 7371Mandy
Tech in Motion: Philadelphia PhiladelphiaUSTechnologists 7124Mandy
WordPress NYC Meetup Group New YorkUSWordPress Fanatics 6985WordPress
PHP London LondonGBPHP users 6939Johanna Cherry
New York MongoDB User Group New YorkUSMembers 6440MongoDB
NYLUG - New York Linux Users Group New YorkUSMembers 5957Brian Gupta
I am Happy Project - Ni Dilli, Indian Ni DilliINHappy People 5030I am Happy Project
PHPSP - São Paulo PHP Developers Group São PauloBRMembers 4897Hussani Oliveira
¿Por qué aprender a Programar? BogotáCONuevos Programadores 4790Cesar
The Vancouver Web Design Meetup Group VancouverCAVancouver Web Design Meetup 4706Darrell Hadden
Find a Tech Job LondonGBCareer Networkers 4573Samantha hepburn
New York Web Performance Group New YorkUSweb speeders 4399Sergey Chernyshev
Chicago Women Developers ChicagoUSAmazing People 4248Melissa Pierce
Skookum Tech Talks CharlotteUSMembers 4140Don Post
WordPress Orlando OrlandoUSWordPressers 4031WordPress
Berlin Hack and Tell BerlinDEHackers 4016Keith Corwin
WordPress Sydney SydneyAUWordPress Enthusiasts 3903WordPress
Melbourne Web Developers MelbourneAUDevs 3793Emma
Boston PHP BostonUSMembers 3757Matt Murphy
WordPress DC WashingtonUSWP Enthusiasts 3715WordPress
Women Who Code Boston BostonUSCoders 3656Women Who Code
Boston Software Engineers BostonUSSoftware Engineers 3568Michael Latulippe
AWS Seattle | Official Events SeattleUSMembers 3467Ross Barich
Code Oregon PortlandUSStudents 3434Jenny W
Full-Stack Engineering New YorkUSFull-stack Engineers 3370Michael Boufford
Dev Japan TokyoJPmembers 3361Caven Cade Mitchell
Delhi MongoDB User Group DelhiINMembers 3315MongoDB
Matters - Paris Veille Technos Meetup ParisFRLearners 3304Matters
MTL + ECOMMERCE MontréalCAEcommerce Professionals 3248Ambroise Debret
San Francisco MongoDB User Group San FranciscoUSMongoDB Fans 3192MongoDB
Women Who Code Boulder/Denver DenverUSWomen Who Code Members 3142Women Who Code
WPSFO - the San Francisco WordPress Meetup San FranciscoUSWordPress Enthusiasts 3115Zach Berke
Community Hack Night Los AngelesUSMembers 3056Dubie
Boston WordPress CambridgeUSWordPress Fans 3055Tom Beach
WordPress Barcelona BarcelonaESWordPressers 3022WordPress
BogoDev BogotáCOProgramadores 3020@ElkinGaravito
Sydney Developer Drinkups SydneyAUDevelopers 2913Jess Telford
İstanbul PHP User Group IstanbulTRPHPers 2897Emir Karşıyakalı
Memphis Technology User Groups MemphisUSTechies 2869Bryan Robinson
SoCal Node.js Los AngelesUSNoders 2770David Aktary
IT w Warszawie WarsawPLMembers 2750Jadex
Tech in Motion: Dallas DallasUSTechnologists 2749Mandy Walker
Pixels and Pints CalgaryCASquares 2739Pixels YYC
The Digital Pond LondonGBDigital Ponderers 2683Siji Onabanjo
SF PHP Community San FranciscoUSPHP Developers 2659Andre Marigold
The Vancouver WordPress Meetup Group VancouverCAWordPress Enthusiasts 2586WordPress
KeepCoding MadridESKeepCoders 2524Grokk
WordPress London LondonGBWordPress Community Members 2493Dan Maby
Sydney Enterprise Agile / Scrum Meetup SydneyAUSydney Agilists 2482Michael Saunders
Achievers Tech Talks TorontoCAMembers 2478Achievers Tech Admin
formation développeur web Paris by 3W Academy ParisFRAcadémiciens 2462Djamchid
Programmers Crew -Lets Learn To Code Together HoustonUSProgrammers Crew 2455Paul
LAPHP: The Los Angeles PHP Developers Group Santa MonicaUSPHP Developers 2437Oleg Baranovsky
Women's Coding Collective - Boston CambridgeUSCoders and creators 2386Nicole Noll
New York PHP Meetup New YorkUSNYC PHP Members 2350Hans Zaunere
Stamford Tech Meetup StamfordUSTechies 2346Built In CT
Laravel Nigeria LagosNGDevelopers 2322prosper otemuyiwa
Chicago Web Professionals Meetup Group EvanstonUSChicago Web Professionals 2313Jeff McNear
London Web Performance Group LondonGBWeb Speeders 2304Perry Dyball
Dallas PHP DallasUSPHP Developers 2281Chris Cornutt
Web Engineering Düsseldorf DüsseldorfDEEngineers 2273Andy Grunwald
Sydney PHP SydneyAUPHP Developers 2247Ollie Brennan
Technology Job Seekers Greater Boston BostonUSProfessionals 2239Maureen
AmsterdamPHP AmsterdamNLPHPers 2231Rafael Dohms
Seattle Web App Developers Group SeattleUSWeb App Devs 2223Paul Litwin
Native App Club - Training , Certifications , Freelancing BangaloreINApp Developers 2220Ameer MPF
life michael tel aviv Tel Aviv-YafoILMembers 2208Haim Michael
Madrid MongoDB User Group MadridESMembers 2193MongoDB
OpenTech ParisFRhuman bots 2172Cyril PIERRE de GEYER
Women Who Code East Bay OaklandUSCoders 2130Women Who Code
Austin PHP Meetup AustinUSPHP Developers 2095Logan Lindquist
Philadelphia WordPress Meetup Group PhiladelphiaUSWordPress Enthusiasts 2082WordPress
DC PHP Developer's Community WashingtonUSDC PHPers 2068Sandy Smith
Women Who Code LA Culver CityUSCoders 2067Women Who Code
Mentorship Saturdays PortlandUSMembers 2060Brad
PHP Rio Rio de JaneiroBRMembros 2039Raphael de Almeida
PHPMad MadridESMembers 2025Daniel González
Drupal Bangalore BangaloreINDrupalers 2025hw
AFSY SfPots ParisFRSymfony Users 1986Jonathan Jalouzot
The Austin Linux Meetup AustinUSLinux Enthusiasts 1956Darren Carpenter
Denver Hack Nite DenverUSHacks 1940Josh Robinson
Paris MongoDB User Group ParisFRMembers 1933MongoDB
Code Till Dawn Saint LouisUSCoders 1929Nicholas Diaz
The San Antonio Web Development Group San AntonioUSDevelopers 1927Jason Straughan
GTA PHP User Group TorontoCACoders 1925Vic Metcalfe
Hacker News Chicago Meetup ChicagoUSHackers 1917Eric L
Hack Mosaic New YorkUSHackers 1905Kyle Wanamaker
AtlantaPHP Meetup Group AtlantaUSPHP Developers 1878Chris Spruck
Melbourne PHP Users Group MelbourneAUPHPMelbers 1877Tom Corrigan
Azure Community Singapore (ACS) SingaporeSGAzure Community Members 1875Riza Marhaban
OC New Web Developers IrvineUSDevelopers 1867Eric Johnson
Berlin Startup Culture (BSC) BerlinDEMembers 1854George Papa
Ciklum Ukraine/Belarus knowledge sharing community KyivUAIT geeks 1847Julia
3W Arena - L'agence digitale des entrepreneurs! ParisFRGladiateurs 1833Djamchid
Bot Builder Meetup - Bangalore BangaloreINTechies/Founders 1825Malay Warankar
Comunidad de PHP México CityMXPHPeros 1811Pronuer (Claudio M.G.)
Austin Programmer Community AustinUSProgrammers & Developers 1786George Pazdral
Women Who Code Manila ManilaPHAwesome Women Coders 1772Women Who Code
WordPress Stockholm StockholmSEWordPressers 1767WordPress
Austin Coders & Hackers by The Tech^map AustinUSCoders & Hackers 1765Johan Borge
The Seattle Ruby on Rails Developers Meetup Group SeattleUSRailers 1763Bill Harding
Montana Programmers BozemanUSMontana Programmers 1746Wes
London Magento Users Group LondonGBMagento Users 1735Lee Bolding
DomCode UtrechtNLCoders 1732Lucas van Lierop
ThinkPHP Kharkiv KharkivUAMembers 1720NIX Solutions ltd
Jeddah Entrepreneurship Meetup مجموعة ريادة الأعمال جدة JiddahSAProfessional 1706Jamal Yacoub
Laravel Philippines ManilaPHArtisans 1685Alfie Besin
Drupal France et Francophonie ParisFRDrupaliens 1675Artusamak
Technology Meetup (India) PuneINMembers 1663Technology Meetup (India)!
NYC Tech Debates New YorkUSDebaters 1663Zachary Schneider
106 Miles - Southern California Edition Los AngelesUS106ers 1662Adam
Bangalore PHP Users BangaloreINMembers 1641Chakrapani R
Freelance Talks : Les Apéros Freelances & Tips ParisFRFreelances 1616FreelanceRepublik
Dev Paraná MaringáBRDesenvolvedores 1614Fernando Fabricio dos Santos
Silicon Valley Peninsula MongoDB User Group Palo AltoUSMongoDB Fans 1595MongoDB
Refactor::Chicago ChicagoUSProfessionals 1590Eric Kingery
WordPress Buenos Aires Buenos AiresARWordPresseros 1575WordPress
Seattle PHP User Group SeattleUSPHP Developers 1571Tessa Mero
Minneapolis - St. Paul WordPress User Group MinneapolisUSWordPress Enthusiasts 1570WordPress
PHP Quebec MontréalCAPHPers 1555Eric Hogue
Learn Software Development LondonGBCoders 1545Frank Amankwah
New York City Web Development Community New YorkUSWeb Developers 1540Milan
Mobile Developers Group RiyadhSAMembers 1535Dr. Hamad
NYC CSS/UX New YorkUSCreative stylists 1532Mehboob Alam*
PHPSrbija BelgradeRSDevelopers 1531PHP Srbija
DC Web Design, Development, Tech, and Media Authority WashingtonUSWeb Heads 1528Startup Central
HTML5, Angular Js , Bootstrap, CSS MeetUp PuneINngPune 1525Mahesh D
Uszanowanko Programowanko GliwicePLDoges 1515Marcin Mazurek
Open Source Hong Kong Hong KongHKMembers 1509Sammy Fung
Tech nights in Medellín MedellínCOMembers 1495Sebastian Miranda
PHPMG Belo HorizonteBRProgrammers 1491Pedro Chaves
BackEnd/DevOps PH MakatiPHEngineers 1488Thomas Laughlin
Meet Your Dev Paris ParisFRRecruteurs 1480Djamchid
Bangalore Drupal User Group BangaloreINDrupalers 1479Neeraj
The Singapore PHP User Group Meetup SingaporeSGPHP Community Member 1475Sushma Vyas
Nerd Interface ChicagoUSNerds 1472Gregg Walrod
PHP Colombia BogotáCOphperos 1470f3l
Docker Copenhagen CopenhagenDKDockers 1469Moby Dock
WroclawIT WroclawPLMembers 1463Patka
Schönherz Bázis - IT és villamosmérnök meetup BudapestHUInformatikus és villamosmérnök 1457Varga Ferenc
Costa Rica WordPress Meetup San JoseCRWordPress Users 1455WordPress
Sacramento WordPress Meetup SacramentoUSWordPress Users 1450WordPress
Frankfurt Developers FrankfurtDECoders 1450Pavlos Giannakis
Grand Circus Detroit: Coding Bootcamps DetroitUSGrand Circus Family 1447Grand Circus
Webworker NRW DüsseldorfDEWebworker 1435Christian Schaefer
Saigon Developer Group Thanh Pho Ho Chi MinhVNMembers 1431Hung Vo
Codeup San AntonioUSMembers 1409Codeup
APIs & IPAs (API Discovery) San FranciscoUSDevs 1393Marc Cuva
Localhost PER PerthAUPeeps 1388Patima Tantiprasut
TCNewTech Traverse CityUSTC Technology Enthusiasts 1386Russell Schindler
Drupal Developer Network (Singapore) SingaporeSGDrupalists 1385SJ
Kolamba Cloud Meetup ColomboLKCloud Fanatics 1377WSO2
PHP Meetup NairobiKEPHPers 1375Chencha Jacob
Dayton Web Developers DaytonUSDevelopers 1369Nathan
YulDev MontréalCADev 1367Daniel LeBlanc
WordPress Lisboa LisbonPTMembers 1360WordPress
OC Tech Startup IrvineUSMembers 1355Shervin Talieh
Nashville PHP NashvilleUSPHP Developers 1347Ben Ramsey
NewHaven.IO New HavenUSTech Minded People 1346Zach Morek
Python in Korea SeoulKRGeeks 1346Eric Kim Hoik
Microsoft Developers UAE Meetup DubaiAEMicrosoft Developers 1339Ovais Mehboob Ahmed Khan
PHP Mexico México CityMXDevelopers 1332David Flores
Shared Success Business Club JohannesburgZAMembers 1323Antony Masocha
Jeddah Software Developers JiddahSADevelopers 1316Abdullah Alghamdi
Chicago Drupal Meet Up Group ChicagoUSPeople interested in Drupal 1306Matthew Lechleider
The jQuery Boston Meetup Group BostonUSMembers 1303Alessandra Rosenberg
Delhi Hackathon Meetup DelhiINMembers 1300Vignesh Ramesh
Full Stack Meetup Budapest BudapestHUMembers 1296Zoltan Szasz
Charleston Technology Group CharlestonUSTechnologists 1294Adam Romer
Vienna WordPress Meetup ViennaATPeople 1290WordPress
Developers Day powered by kariera.gr AthensGRFellows 1289kariera.gr
Brisbane Web Tech BrisbaneAUWeb Tech Developers 1283John Christian
LA Startups Los AngelesUSEntrepredoers 1271Paul
Developers.nl Meetup RotterdamNLDevelopers, software programmers 1266Developers.nl B.V.
SFDUG - San Francisco Drupal Users group San FranciscoUSDrupal users 1263John Faber
Graduate Developer Community LondonGBDevelopers 1262Barry Cranford
Toronto Software Development Meetup TorontoCAMembers 1243John Lilly
DC Area Drupal Meetup Group WashingtonUSDrupalers 1236Karl Kaufmann
Cape Town PHP Group Cape TownZADevelopers 1235Ian Barnes
San Diego PHP San DiegoUSSDPHP Members 1233John Congdon
Pune Entrepreneurs and Startups Group PuneINMembers 1217Nevil
CodeHub Bristol BristolGBMembers 1212Katja Durrani
hackameetup LondonGBHackers 1204Razvan Creanga
Boise Web Technologies Group BoiseUSWeb professionals 1201Patrick Lee
Full Stack Talks CarlsbadUSDesigners & Developers 1196Jeff Berg
Kanpur WordPress Meetup KanpurINWordPress Enthusiasts 1182WordPress
Creative Organization of Developers with Advanced Learning AhmedabadINProgrammers 1176Shivani Sharma
GeekBeer OsloNOGeeks 1152Harald Ulriksen
Women Who Code Santiago SantiagoCLCoders 1151Women Who Code
Egypt WordPress Meetup CairoEGEgyptian WordPressers 1149Ahmed Elnagdy
Indore Web & Mobile Developers Meetup IndoreINWeb Magicians 1143Vinesh Sandoria