Join Startup Ideas

1 month ago

A company aiming to sell memberships that allow people to join together in real-time to buy on the same day as a big event. It’s a spin on the “groupon” model for events, and wants to build a marketplace for like-minded people to buy tickets on the same day.

303

2 years ago

A startup that helps users find and connect with events near them. Since launching in May, the startup has seen over 2,000 new users join their platform.

210

2 years ago

One of the very first startups backed by Andreessen Horowitz, Tigster is a “gateway” for employees to take a sabbatical and rejoin their company without losing pay, with potential to save employers about $300,000 per year.

187

1 month ago

A company that creates a tool to help developers find and join the communities of open source software projects that are most relevant to them.

162

3 years ago

When you have a startup, you can’t just find some random engineer to join you — it takes a certain amount of money to build out your team.

150

1 year ago

This company is building a dynamic, social network for creators. The company’s users are known as “creators”, and they’re able to join the platform via social channels like Facebook and Twitter. The company’s blog is meant to be a “creators” hub, where they’re able to share their work, and tips and tricks.

150

3 years ago

An online marketplace for small businesses to collaborate, where they can share resources, receive feedback from customers, and get more business. They charge businesses $5 per month per person to join, and charge businesses $500 a month to become a Vendor.

146

3 years ago

A joint project of the US Department of Agriculture and the National Park Service, which is trying to create a mobile payment system for parks.

146

3 years ago

A startup that enables people to join online discussions from anywhere, even when they’re offline

140

3 years ago

“A platform that allows artists to share their work, collaborate, and invite fans to join them in the creative process.”

139

3 years ago

Out of the 70 companies that were selected to join the program, four companies (and 1 alumni) made it to the final round of the Summer 2014 class.

138

3 years ago

A platform that helps people find and join classes, workshops, group-mentorship sessions and more

134

3 years ago

A coffee delivery service in San Francisco that is “delivering a new experience” to the coffee industry. The startup is a joint venture between a coffee roaster and a delivery service like Postmates.

133

3 years ago

A platform for small business owners to rent their property out. The company is a joint venture between a local business incubator and the co-founder of Airbnb.

129

2 years ago

A startup that helps people find like-minded people in their area to join them on a shared journey. The site lets you book a ride with others nearby, and lets them know when it’s ready to pick them up.

124

2 years ago

In the summer of 2016, Y Combinator opened a office in London to focus on Europe. The office is headed by Laura Simpson, who previously worked at eBay, and has joined the Y Combinator London team. Y Combinator London is focused on advising and investing in European startups and is led by Stephen O’Grady, who previously worked at Twitter, Google, and Yahoo.

122

3 years ago

A company that aims to help folks in remote areas join the internet via satellite. It uses a combination of an on-the-ground antenna, GPS location and signal strength, and mobile coverage to triangulate a tower near the user and then send them a tiny satellite modem.

119

1 month ago

A mobile app that makes it easier for people to find or join a gym, and also serves as an injury reporting platform. The startup is working with the American College of Sports Medicine to develop an injury reporting database.

117

1 month ago

This startup is building a platform for community-led event planning. It’ll let users sign up for events, and invite friends to join them.

111

3 years ago

A secure messaging platform for enterprises. It looks a lot like Slack, but only allows internal employees to join a company chatroom.

109

8 months ago

This is a collective of startups that want to use the power of the internet to build an open-source marketplace for physical goods. The startups will join forces to offer goods from around the world at low prices to anyone in the world. There’s a lot of competition in the space, but it’s an interesting idea.

94

1 year ago

A social network for photographers, which lets you join groups of photographers, and collaborate with them on shoots.

86

1 year ago

A digital currency for underbanked Singaporeans. The startup builds a platform that enables individuals to join the mainstream financial system. Right now, it’s restricted to Singaporeans, and the founders are working on getting it to the wider Southeast Asian and Indian markets.

82

1 year ago

An online community for basketball where users can “create a team, join one and talk about the game”.

81

1 year ago

A platform for “joint venture” companies to make their employees happier by curating content, sharing it with their networks, and suggesting other content for them to read.

79

2 years ago

Using a combination of data science, machine learning, and blockchain, this startup is building a tool for scammers to analyze how many people are joining their scheme, and the type of people joining, in order to better tailor their scams.

77

2 years ago

A Hong Kong-based startup that is doing a joint venture in China with a Chinese partner. The two companies will work together to build a consumer product in China, and then later in Hong Kong.

65

3 years ago

Idea: A remote work and freelancing platform for knowledge workers. The company says it’s growing at a rate of more than 3,000 new teams joining monthly, with over 5,000 new companies joining quarterly.

64

1 year ago

A joint project between an artist and an engineer, this startup is building an AI-powered bot that can help artists create music.

64

1 year ago

A digital media business aimed at helping companies build their brand and promote to their customers. They’ve finished a 3-month pilot with a company and are looking for other businesses to join.

64

1 year ago

A company that wants to help people in the real estate industry easily share their listings online. It currently has 1,000 listings on its site, and is looking for other real estate agents to join them.

63

1 year ago

A startup that wants to become the LinkedIn for freelancers. The company has already managed to find 4,000+ people to join the site and has a $1 million dollar seed round in their bank account.

58

1 year ago

A global fintech company that provides a way for emerging markets to get loans from traditional banks. The startup has pulled in big names including Bill Clinton, who has joined its advisory board.

57

6 months ago

A company that makes it easy for people to join a group on Facebook, Twitter, Instagram, or any other network.

57

1 year ago

A startup to help people create their own social networks, like inviting friends and family to join along with creating a digital “photo album” that you can share with others.

54

1 year ago

A way to create and shape material for TV shows and movies. The startup, which was founded in January, is building the software that powers a social media-style fan network for TV shows and movies, allowing fans to create and join communities around their favorite content.

54

1 year ago

Building a tool that helps employees manage their work and personal time. It’s free to join and free to use.

52

9 months ago

The startup is a joint venture between Alibaba’s personal shopping arm and the group’s sports and fitness arm, S.F. International, to create an app that lets users compare prices and get daily shopping tips from their favorite personal trainers. The company is based in Hangzhou, China.

48

1 year ago

A joint venture between Taiwanese and Malaysian companies building a logistics platform for small and medium enterprises. The startup wants to be the Amazon of Chinese logistics companies.

47

1 year ago

A web app that helps people find joy in the everyday. You’ll be able to build a home page or blog, then use it to share content with friends, or invite others to join in.

46

1 year ago

The 11th batch of startup companies to join Y Combinator was announced on October 3, 2019.

46

1 year ago

This is a game-like tool for creating, connecting, and interacting with users in a group. Users can create their own rooms, and can invite others to join. The founders want to find a way to enable users to create and moderate spaces that are unique to them, and that can help them to connect with people in a larger community.

45

8 months ago

Ploom wants to be the answer to the “unbanked”. A cannabis product, available in pre-rolled joints and cartridges, cartridges can also be used to charge mobile devices.

45

1 year ago

A few companies are trying to make it easier for individuals to get health insurance, with Kahuna being the latest to join the pack.

44

1 year ago

A video platform that allows you to group together people of similar backgrounds and interests and other users who want to join their group. It’s similar to other social networks like Meetup, but different because it’s built for groups of specific interests, like comedy or hiking.

43

9 months ago

A platform for people to sell and buy items from the same store, such as a local BBQ joint that can sell a nearby restaurant’s menu items

43

11 months ago

A real-time social network for collaborative content. It’s a video-based platform where users can choose what content to share via comments, and users can join groups for specific topics.

40

2 months ago

The Winter '16 class of Y Combinator has included 50 companies, including 11 that have joined the class of YC companies before.

24

5 months ago

A startup that helps people build a community around a shared interest, like a shared passion for food or learning a language. You sign up, start a Facebook group, and invite others to join.

21

2 months ago

A calendar app focused on sharing calendars with others. It works with other apps that allow you to create calendars and invite others to join.

19

3 years ago

Idea: A tool for connecting people with a “community partner” like a co-working space or business incubator. It’s a way for people to find and join groups to collaborate on projects, host events, and share resources.

16

24 days ago

A platform that connects artists with brands and helps them join forces on projects. The founders say they are building a “digital agency on the blockchain” to make art more collaborative.

15

1 month ago

A platform that lets you take your offline activities online and share them easily. Users can create custom online pages for their physical workouts, and then invite friends to join them on the app to track their progress.

13

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Join Startup Ideas

A company aiming to sell memberships that allow people to join together in real-time to buy on the same day as a big event. It’s a spin on the “groupon” model for events, and wants to build a marketplace for like-minded people to buy tickets on the same day.

A startup that helps users find and connect with events near them. Since launching in May, the startup has seen over 2,000 new users join their platform.

One of the very first startups backed by Andreessen Horowitz, Tigster is a “gateway” for employees to take a sabbatical and rejoin their company without losing pay, with potential to save employers about $300,000 per year.

A company that creates a tool to help developers find and join the communities of open source software projects that are most relevant to them.

When you have a startup, you can’t just find some random engineer to join you — it takes a certain amount of money to build out your team.

An online marketplace for small businesses to collaborate, where they can share resources, receive feedback from customers, and get more business. They charge businesses $5 per month per person to join, and charge businesses $500 a month to become a Vendor.

A joint project of the US Department of Agriculture and the National Park Service, which is trying to create a mobile payment system for parks.

A startup that enables people to join online discussions from anywhere, even when they’re offline

“A platform that allows artists to share their work, collaborate, and invite fans to join them in the creative process.”

Out of the 70 companies that were selected to join the program, four companies (and 1 alumni) made it to the final round of the Summer 2014 class.

A platform that helps people find and join classes, workshops, group-mentorship sessions and more

A coffee delivery service in San Francisco that is “delivering a new experience” to the coffee industry. The startup is a joint venture between a coffee roaster and a delivery service like Postmates.

A platform for small business owners to rent their property out. The company is a joint venture between a local business incubator and the co-founder of Airbnb.

A startup that helps people find like-minded people in their area to join them on a shared journey. The site lets you book a ride with others nearby, and lets them know when it’s ready to pick them up.

A company that aims to help folks in remote areas join the internet via satellite. It uses a combination of an on-the-ground antenna, GPS location and signal strength, and mobile coverage to triangulate a tower near the user and then send them a tiny satellite modem.

A mobile app that makes it easier for people to find or join a gym, and also serves as an injury reporting platform. The startup is working with the American College of Sports Medicine to develop an injury reporting database.

This startup is building a platform for community-led event planning. It’ll let users sign up for events, and invite friends to join them.

A secure messaging platform for enterprises. It looks a lot like Slack, but only allows internal employees to join a company chatroom.

A social network for photographers, which lets you join groups of photographers, and collaborate with them on shoots.

A digital currency for underbanked Singaporeans. The startup builds a platform that enables individuals to join the mainstream financial system. Right now, it’s restricted to Singaporeans, and the founders are working on getting it to the wider Southeast Asian and Indian markets.

An online community for basketball where users can “create a team, join one and talk about the game”.

A platform for “joint venture” companies to make their employees happier by curating content, sharing it with their networks, and suggesting other content for them to read.

Using a combination of data science, machine learning, and blockchain, this startup is building a tool for scammers to analyze how many people are joining their scheme, and the type of people joining, in order to better tailor their scams.

A Hong Kong-based startup that is doing a joint venture in China with a Chinese partner. The two companies will work together to build a consumer product in China, and then later in Hong Kong.

Idea: A remote work and freelancing platform for knowledge workers. The company says it’s growing at a rate of more than 3,000 new teams joining monthly, with over 5,000 new companies joining quarterly.

A joint project between an artist and an engineer, this startup is building an AI-powered bot that can help artists create music.

A digital media business aimed at helping companies build their brand and promote to their customers. They’ve finished a 3-month pilot with a company and are looking for other businesses to join.

A company that wants to help people in the real estate industry easily share their listings online. It currently has 1,000 listings on its site, and is looking for other real estate agents to join them.

A startup that wants to become the LinkedIn for freelancers. The company has already managed to find 4,000+ people to join the site and has a $1 million dollar seed round in their bank account.

A global fintech company that provides a way for emerging markets to get loans from traditional banks. The startup has pulled in big names including Bill Clinton, who has joined its advisory board.

A company that makes it easy for people to join a group on Facebook, Twitter, Instagram, or any other network.

A startup to help people create their own social networks, like inviting friends and family to join along with creating a digital “photo album” that you can share with others.

A way to create and shape material for TV shows and movies. The startup, which was founded in January, is building the software that powers a social media-style fan network for TV shows and movies, allowing fans to create and join communities around their favorite content.

Building a tool that helps employees manage their work and personal time. It’s free to join and free to use.

The startup is a joint venture between Alibaba’s personal shopping arm and the group’s sports and fitness arm, S.F. International, to create an app that lets users compare prices and get daily shopping tips from their favorite personal trainers. The company is based in Hangzhou, China.

A joint venture between Taiwanese and Malaysian companies building a logistics platform for small and medium enterprises. The startup wants to be the Amazon of Chinese logistics companies.

A web app that helps people find joy in the everyday. You’ll be able to build a home page or blog, then use it to share content with friends, or invite others to join in.

The 11th batch of startup companies to join Y Combinator was announced on October 3, 2019.

Ploom wants to be the answer to the “unbanked”. A cannabis product, available in pre-rolled joints and cartridges, cartridges can also be used to charge mobile devices.

A few companies are trying to make it easier for individuals to get health insurance, with Kahuna being the latest to join the pack.

A video platform that allows you to group together people of similar backgrounds and interests and other users who want to join their group. It’s similar to other social networks like Meetup, but different because it’s built for groups of specific interests, like comedy or hiking.

A platform for people to sell and buy items from the same store, such as a local BBQ joint that can sell a nearby restaurant’s menu items

A real-time social network for collaborative content. It’s a video-based platform where users can choose what content to share via comments, and users can join groups for specific topics.

The Winter '16 class of Y Combinator has included 50 companies, including 11 that have joined the class of YC companies before.

A startup that helps people build a community around a shared interest, like a shared passion for food or learning a language. You sign up, start a Facebook group, and invite others to join.

A calendar app focused on sharing calendars with others. It works with other apps that allow you to create calendars and invite others to join.

Idea: A tool for connecting people with a “community partner” like a co-working space or business incubator. It’s a way for people to find and join groups to collaborate on projects, host events, and share resources.

A platform that connects artists with brands and helps them join forces on projects. The founders say they are building a “digital agency on the blockchain” to make art more collaborative.

A platform that lets you take your offline activities online and share them easily. Users can create custom online pages for their physical workouts, and then invite friends to join them on the app to track their progress.