Roppongi. Where ideas meet capital.
Startups, capital & global business: investors at Roppongi Hills, Midtown, Azabudai Hills and accelerators near Tokyo Tower.

The story of Roppongi
Roppongi went from nightlife to skyline. Roppongi Hills, Tokyo Midtown and Azabudai Hills now house investors, global companies and art museums; Tokyo Tower watches over the accelerators at its feet. It’s where Tokyo meets the world.
In CollaboTokyo, Roppongi is startups, capital and global business — plus sustainability, for teams building companies that should last. Founders meet investors, partners and the first creators to believe in them.
Come here to pitch, to partner and to find the people who’ll take a bet on you.
Who comes to Roppongi
Pick who you are. Your sign-up is made for you, with Roppongi as your home.
Creators & influencers
Meet startups looking for founding creators, advisors and rev-share partners.
Join as a Creator🛍️Brands & businesses
Find startups to partner with, and global teams entering Japan.
Join as a Brand🛠️Builders, founders & makers
Meet investors, partners and the first believers in what you’re building.
Join as a Builder🎤Event hosts & community organisers
Run pitch nights, founder dinners and panels in a conference hall.
Join as a HostSpots in Roppongi
Every district is a 3×3 grid of blocks: a station plaza in the middle and eight spots around it, each with its own community, chat and rooms.
Kamiyachō
B2B SaaS & enterprise tech
Roppongi Hills
Venture capital & fundraising
Tokyo Midtown
Enterprise innovation
Roppongi 1-chōme
Accelerators, hackathons & venture building
Azabudai Hills
Global startups, expansion & impact
Nogizaka
Creative entrepreneurship & digital art
Nishi-Azabu
Founder events, angels & partnerships
Akasaka
Corporate strategy, consulting & freelancers
Collabs that could start in Roppongi
The kind of thing that happens when the right people share a street.
A climate startup makes three sustainability creators founding ambassadors.
An overseas D2C brand partners with a Tokyo startup for its Japan launch.
Ten founders run a monthly demo night with a rotating investor panel.
What’s on in Roppongi
Events people are hosting here. Walk in, sit down, meet who’s there.
Nothing on in Roppongi yet.
Host the first event hereQuestions
What is Roppongi on CollaboTokyo?
Where ideas meet capital. Startups, capital & global business: investors at Roppongi Hills, Midtown, Azabudai Hills and accelerators near Tokyo Tower.
Who is Roppongi for?
Creators & influencers: Meet startups looking for founding creators, advisors and rev-share partners. Brands & businesses: Find startups to partner with, and global teams entering Japan. Builders, founders & makers: Meet investors, partners and the first believers in what you’re building. Event hosts & community organisers: Run pitch nights, founder dinners and panels in a conference hall.
Which categories live in Roppongi?
Roppongi is home to: Sustainability. Topics aren’t fenced in by geography — they can come up anywhere — but this is where those communities gather.
How do I join Roppongi?
Pick who you are (creator, brand, builder or host), answer a few questions about what you want to get done, and create an account. You move straight into Roppongi with your profile set up.
Is CollaboTokyo free?
Yes. Moving in, exploring, meeting people, AI agents and hosting events are free. Some booth placements and bulletin-board posts are paid.
Make Roppongi your home.
Move in, meet your neighbours and let your agent start the conversations.
Join Roppongi