A great community to find a freelancer for your job, also for freelancers to exchange experiences and opportunities

a global community of startup data scientists, data warehousers, and BI types. We currently have 90 members from all over the world.

Danish developer and design community.

Official Public Slack for Mesosphere DCOS.

Slack chat for photographers

Give your data the treatment it deserves with a framework-agnostic, datastore-agnostic JavaScript ORM/ODM built for ease of use and peace of mind. Works in Node.js and in the Browser.

We are an invite-only community for SaaS founders & professionals. Established to exchange knowledge, ideas and best practices.

La plus grande communauté d'échange sur les startups en Algérie! Engagez vous avec des startupeurs, investisseurs ou tout simplement des technophiles partout en Algérie.

Charleston Tech community

Join our community of like-minded entrepreneurs, designers, developers, & makers. #Launch is a place to collaborate, discuss new products, find work, get feedback, or even find a co-founder.

Slack community came out from https://www.reddit.com/r/Entrepreneur

We're a group of VCs, angels, advisors, and founders discussing things like fundraising, market opportunities & trends, deal intelligence, sourcing & events, and investment theses/frameworks.

Slack community for scotch.io

The global developers community, on Slack

Frankfurt Hackers, Engineers and Developers community

a community of Colorado-based software engineers, working in or interested in startups, web development, data science, system administration, or other applications of computer science.

Official Slack chat for WordPress.

A Community of Top-notch Front End Developers on Slack

A slack community for the content management system for creatives.

The Digital Humanities Slack is a set of informal, connected chat rooms for the digital humanities, with over 50 "channels" (chat rooms) devoted to specific topics such as DH teaching, coding, and conferences. Come join us! Absolutely no DH background is required. Before signing up, do read the section immediately outlining our community-authored code of conduct.

Become a better UX designer with online mentoring. Join our global community of people learning UX and get help from our team of experienced UX, Research and Service Design mentors.

Slack channel for Python programming language.

TiSlack is THE Titanium Community on the web. Any question you have, any blogpost you've got to share, or if you just want to hang out, we're one community together.

Сообщество разработчиков Ташкента, в Slack Сообщество разработчиков связанных общей культурой готовых делиться опытом и знаниями.

The first Slack community for UAE startups. Join founders, hackers, investors, and advocates to chat and share resources around the MENA startup community.

We are a slack community of Gainesville techies.

Comunidad en Slack de trabajadores web, en Chile. #Chile es una comunidad de trabajadores web, que se comunican mediante Slack. Esta comunidad nace con el objetivo de conectar a todos los trabajadores digitales de este país. Queremos intercambiar ideas, desarrollar proyectos, dar a conocer nuestro trabajo, buscar ayuda y hacer de #Chile un lugar con más/mejor trabajo y menos bullshit.

Русскоязычное сообщество для профессионалов творческой индустрии — вся соль дизайна, технологий, медиа и стартапов Стимулом к созданию сообщества явилась традиция к объединению специалистов из всех сфер для активного взаимодействия, обмена опытом и знаниями. Мы связаны общей культурой и не ограничены географическими, религиозными или политическими рамками.

Join 3000 startup people in the largest Slack group of Berlin. We see it and want it to be an online community where you e-talk about what glocal Berlin startups daily life is.This is a place where you can pursue or share that talk you heard or that conversation you started during the last meet-up you went to. It is also the place where you can start conversations and talks and get valuable inputs from other starturpers.

Connect with other security professionals and start sharing your stories, experiences and knowledge with people from across the globe!

A Slack powered community for creative developers to share knowledge. Talk to the other frontend devs. Learn from others and ask questions. Share your work and find gigs.

Official Slack chat for Bootstrap.

We’re a user group of former Rdio users, including past Rdio employees, third-party app developers, and music enthusiasts (like you!) rebuilding a platform-agnostic music community on Slack.

Private community to share the experience of building a B2B startup with other founders facing similar challenges. The community helps create opportunities to collaborate, get feedback and become better entrepreneurs.

Slack chat for learning Swedish language.

A free channel for digital nomads working on a startup. Discuss what you're working on and get help with your new startup, or find out what your next destination should be.

We're a group of friendly folks in the Irish Tech Community. We are always interested in new members joining. There are no requirements, other than being a real person, and ideally, interested in tech. We have many channels devoted to multiple subjects, from design and development of tech, to conferences and diversity. We are building a sustainable, diverse community of people who are interested in growing their skills, experience, community and industry.

More than 650 members from all around the globe are talking and sharing experiences in the Pinegrow community on #slack!

We are an online slack team of communication and knowledge management which focus on data science and machine learning by Apache Spark, Python Scikit-Learn, Scala Breeze, R or any other topics on big data domain.

SAFE is a peer-to-peer data storage network that enables developers to build scalable apps.

a Slack community for MySQL users. We discuss problems, post questions, organize meetups and talk about everything MySQL.

DevOps Slack Chat for Server Lovers

Join the worldwide community of Conversion Optimizers and Data driven marketing geeks

Hack Night SLC is a free monthly meetup in Salt Lake City Utah for coders, business people, designers, and anyone interested in tech.

chat for Russian–speaking developers

AmateurPreneur is a community on Slack for beginner entrepreneurs. A place to discuss, share, get help and acquire feedback.

Bolt is a tool for Content Management, which strives to be as simple and straightforward as possible.

a place for anyone to discuss applied ethnography.