sousa

orchestrating community for the modern-day block-builder

A great neighborhood should feel like a well-orchestrated ensemble, where everyone has a role to play. Sousa helps you bring your block together (or start your own band).

Get in touch

modern neighborhoods aren't marching in lockstep

1

Tapped Out Block Leaders

The emotional and logistical work of building and maintaining community often falls to a small number of people, leading to burnout

2

Lack of Connection

The pandemic dramatically changed how New Yorkers meet and connect with each other; better blocks & neighborhoods can mitigate the loneliness epidemic

3

Today's Digital Tools Aren't Cutting It

Current hyperlocal tools amplify's social content at the extremes or keeps us stuck behind screens

vision

Sousa envisions a world where every neighborhood thrives as a vibrant, interconnected ecosystem. By empowering community leaders with tools that make their work easier and more creative, and by designing events and frameworks that bring people together, we aim to transform neighborhoods into places where collaboration, connection, and joy are at the heart of daily life.

Unlocking Micro Economies

Creating vibrant, thriving local neighborhoods

Empowering Local Leaders

Providing innovative tools for easier, creative work

Bringing People Together

Designing events and frameworks for connection

…and a bit of random insanity

Fun brings people together for a more cohesive experience

apps for any community conductor

Sousa is building an AI-powered "app store" for the modern-day community builder. With an emphasis on injecting fun and mitigating logistics, we'll make it easier than every for anyone to contribute content & connections back to their block:

Hyper-Local News Digests

AI-generated updates that turn local happenings into bite-sized, shareable content for WhatsApp groups or newsletters, or remix content for other formats, including audio-only.

Smarter Management Tools

Through automated meeting summaries, action items, and community bulletins, leaders and members can spend more time on IRL (vs. screen time).

Bespoke Micro-Apps for Each Block

AI makes it easier than ever to spin up highly customized solutions to solve basic questions on the block; we're building infrastructure for the modern day block-builders.

your (unofficial) band geek

Bethany Crystal

is community builder, strategist, and entrepreneur passionate about transforming how people connect in their neighborhoods. With 15 years of experience in tech startups, venture capital, and civic engagement—including leadership roles at Union Square Ventures, the Uniswap Foundation, and Tech:NYC—Bethany spent the summer revitalizing her block on the Upper West Side, organizing events, and testing new AI-powered tools to build connection. She founded Sousa to help community leaders bring the joys and coordination of marching band to to their own blocks and neighborhoods. She was a proud flute player in the Northwestern University Marching Band for four years and continues to carry community-building lessons with her today.


case study in action

The Manhattan 75

Several thousand neighbors live on West 75th Street today, but as of the summer of 2024, the block association and community had stagnated for 8 years. Over the summer, I set out to bootstrap a block association starting by connecting my building together with a WhatsApp group, and ultimately meeting 50+ neighbors and discovering an old email list of 150+ members.

Today we have successfully kickstarted a new chapter for our block community and have begun to use AI tooling into the way we message and community, such as AI-generated meeting summaries and using AI to summarize and remix newsletter or text message content for different audiences.

Read about the first few months of community-building work on W 75th Street through this AI-generated comic book


what's Sousa?

Named after the legendary bandleader John Philip Sousa, who brought people together through precision and passion, Sousa embodies the belief that neighborhoods, like ensembles, thrive when everyone works in harmony. By combining cutting-edge technology with creative, community-centered solutions, Sousa is helping neighborhoods find their rhythm and shine together.

other reading on our philosophy

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Why the world needs more marching bands

You can learn a lot of lessons in leadership and life from marching band. Some reflections after returning to campus for my 15-year reunion... and why more organizations might reactivate people with a shared history through homecomings.

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Building Community, Not Clutter

Technology should be the glue that supports real-life community building, not the focus that pulls us away from it. Some ideas for how AI can help to augment the effort of community-builders, whether you're building on your block or for something else

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The Invisible Impact of Everyday Community

How the hidden, long-term benefits of community-building are more like taking vitamins vs. eating dessert. These subtle, consistent efforts foster deeper connections, resilience, and well-being over time.

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Can You Put a Price on Community?

This summer I’m participating in a neighborhood accelerator to unlock hyper-local community on my block in New York City.

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Curiosity Did NOT Kill My Cat (But it did help me meet my neighbors)

This is the story of how curiosity did not kill my cat. But it did help me meet my neighbors.