Largest LinkedIn Groups in 2026
(Top Professional Communities by Members)
This page lists the largest LinkedIn Groups in 2026, highlighting some of the biggest professional communities on LinkedIn across topics such as marketing, technology, entrepreneurship and industry networking.
LinkedIn Groups remain one of the largest professional networking tools on the internet. Some groups have grown to more than one million members, bringing together professionals from around the world to share insights, advice and career opportunities.
The list below highlights 30 of the largest LinkedIn Groups currently active on the platform, based on data compiled by DanD.ai, which tracks more than 100 LinkedIn Groups with over one million members.
Each group is ranked using publicly visible member counts and organised by category.
Largest LinkedIn Groups (2026)Summary• Groups listed: 30
• Largest group: Harvard Business Review Discussion Group
• Largest membership: 3 million members
• Data source: DanD.ai research into over 100 LinkedIn communitiesDanD.ai tracks hundreds of large online communities across platforms such as Facebook Groups and LinkedIn Groups, helping map where millions of people gather online. Each LinkedIn Group listed below has more than one million members and is ranked by publicly visible member count.Harvard Business Review Discussion Group - 3,000,000 members
Category: Business, Leadership & Entrepreneurship | Founded: May 2010 A professional community hosted by Harvard Business Review where members discuss leadership, management and decision-making in modern organisations.Artificial Intelligence, Machine Learning, Data Science & Robotics - 2,999,992
Category: Technology & AI | Founded: July 2011 A global community discussing artificial intelligence, machine learning, robotics and the latest advances in data science and emerging technologies.Software/Technology: AI, Marketing, Social Media, Startups, Blockchain, Human Resources & Metaverse - 2,998,323
Category: Technology & AI | Founded: May 2009 A large technology community exploring innovation across AI, blockchain, startups, software development and emerging digital technologies.Social Media Marketing Group by Josh Turner - 2,965,556
Category: Marketing, Media & Communications | Founded: March 2008 One of the largest LinkedIn communities dedicated to social media marketing strategies and helping businesses grow through digital platforms.Python Developers Community (moderated) - 2,715,325
Category: Technology & AI | Founded: September 2007 A developer community where Python programmers share projects, resources and best practices for learning and building with Python.Artificial Intelligence, Deep Learning, Machine Learning - 2,545,936
Category: Technology & AI | Founded: February 2009 A technical community focused on artificial intelligence, deep learning models and machine learning research.Brain Expansion Group - 2,535,214
Category: Learning, Education & Professional Development | Founded: November 2020 A knowledge-sharing community exploring learning, innovation, personal growth and emerging technologies.Digital Marketing: Social Media, Search, Mobile & more - 2,388,576
Category: Marketing, Media & Communications | Founded: May 2008 A digital marketing community where professionals discuss search, social media, mobile marketing and advertising strategies.Digital Marketing - 2,321,686
Category: Marketing, Media & Communications | Founded: March 2008 A global network of digital marketing professionals sharing industry insights, trends and best practices.Microsoft Excel Users - 2,165,304
Category: Data, Analytics & Business Intelligence | Founded: November 2007 A community for professionals who use Microsoft Excel for data analysis, reporting and everyday business tasks.Leadership Think Tank - 2,160,443
Category: Business, Leadership & Entrepreneurship | Founded: October 2007 A leadership network where executives and entrepreneurs discuss strategy, management and organisational growth.Power BI: Business Intelligence Dashboards, Analysis for Analysts & Chief Operating Officers - 2,041,360
Category: Data, Analytics & Business Intelligence | Founded: February 2015 A community for analysts and professionals sharing insights about Power BI, data visualisation and business intelligence.Machine Learning Community (Moderated) - 2,011,047
Category: Technology & AI | Founded: October 2008 A professional community focused on machine learning techniques, AI research and real-world applications.Next Big Thing Club: founder, investor, CEO, CFO, doctor, executive & artificial intelligence pros - 1,798,606
Category: Business, Leadership & Entrepreneurship | Founded: June 2009 A network connecting founders, executives and investors interested in startups, leadership and emerging technologies.Linked:HR (#1 Human Resources Group) - 1,672,203
Category: HR, Talent & Workplace | Founded: September 2007 A major LinkedIn community where HR professionals share insights about talent management, leadership and workplace trends.Internship Group 1,666,088
Category: Careers, Jobs & Recruitment | Founded: October 2013 A community focused on internship opportunities, early career advice and professional development for students.MS Excel and VBA macros - 1,599,828
Category: Data, Analytics & Business Intelligence | Founded: March 2009 A community dedicated to advanced Excel skills, VBA programming and automation techniques.Idea Citizen™ – An Idea Mastermind 1,538,036
Category: Business, Leadership & Entrepreneurship | Founded: July 2008 A collaborative community where entrepreneurs and creators share ideas, innovation strategies and business insights.Marketing Communication - 1,497,743
Category: Marketing, Media & Communications | Founded: February 2008 A marketing community discussing advertising, branding, PR and communication strategies.Dubai Recruitment (DubaiRec.com) - 1,402,270
Category: Careers, Jobs & Recruitment | Founded: May 2008 A recruitment community focused on job opportunities, hiring trends and career discussions in the Dubai job market.Personal Development , Wellness, Mental Health, Self-Help and Self-Improvement network - 1,398,640
Category: Learning, Education & Professional Development | Founded: January 2012 A community exploring personal development, mental wellbeing and self-improvement.Technology Investor Club: Artificial Intelligence, Data Science, Fintech, IoT, Robotics & Cloud AI - 1,365,122
Category: Finance, Investment & FinTech | Founded: January 2016 A professional community discussing investment opportunities in emerging technologies including AI, fintech and robotics.Excel Learning Group - 1,348,141
Category: Learning, Education & Professional Development | Founded: October 2019 A collaborative learning community where professionals share Excel tutorials and tips.Media & Marketing Professionals Worldwide - 1,347,582
Category: Marketing, Media & Communications | Founded: March 2008 A global networking community for marketing and media professionals.Learning, Education, and Training Professionals Group 1,347,850
Category: Learning, Education & Professional Development | Founded: September 2007 A community for training professionals sharing ideas and best practices in learning and education.Tech Startup CEOs & Investors: Artificial Intelligence, Machine Learning, FinTech, SaaS, ChatGPT - 1,297,127
Category: Business, Leadership & Entrepreneurship | Founded: February 2016 A startup community connecting founders, investors and executives discussing innovation and funding.Ai Mindshare - Artificial Intelligence, Machine Learning, ML, Data Science, Gen & Business Analyst. - 1,233,743
Category: Technology & AI | Founded: February 2008 A community for AI professionals and data scientists discussing artificial intelligence, machine learning, generative AI and large language models.Cloud Computing, SaaS, Data Centre & Virtualization - 1,231,262
Category: Technology & AI | Founded: December 2007 A professional network focused on cloud computing, SaaS platforms and modern infrastructure technologies.The Recruiter.com Network - 1,206,691
Category: Careers, Jobs & Recruitment | Founded: November 2007 A recruitment community where professionals discuss hiring strategies, sourcing and employer branding.STARTUP SPECIALISTS NETWORK GROUP Entrepreneurs Business Startups Social Digital Media AI Marketing - 1,189,035
Category: Business, Leadership & Entrepreneurship | Founded: February 2008 One of the largest startup communities on LinkedIn connecting entrepreneurs, investors and founders.Largest LinkedIn Groups - Frequently Asked Questions
What topics do the largest LinkedIn Groups focus on?
Many of the largest LinkedIn Groups are built around professional themes such as technology and artificial intelligence, marketing, entrepreneurship, human resources and data science. Analysis of more than 100 LinkedIn communities shows that these topics consistently attract some of the largest professional networks on the platform. You can explore the full breakdown on the Most Popular LinkedIn Group Topics page.
What is the largest LinkedIn Group?
The largest LinkedIn Group currently tracked by DanD.ai is the Harvard Business Review Discussion Group with 3 million members.How many LinkedIn Groups have over one million members?
Research by DanD.ai has identified more than 40 LinkedIn Groups with over one million members across topics such as marketing, technology, entrepreneurship, recruiting and professional development.Are LinkedIn Groups still active in 2026?
Yes. Many LinkedIn Groups continue to host discussions, industry news, and networking opportunities for professionals around the world.Where can I see the full list of large LinkedIn Groups?
This page highlights 30 of the largest LinkedIn Groups in 2026. DanD.ai is compiling a full dataset of the 100 largest LinkedIn Groups which will be published soon.