Join us on May 15 @ Startup Day 2026. The biggest conference in Seattle for startup founders. If you have a side-project that you want to know if it can turn into a startup, this conference is for you.

Marcelo Calbucci@calbucci.com · 3mo ago

If you work at Microsoft, and you're a tech person or innovator, consider the other possibilities out there. --> seattleflow.org/startupday

Are you curious-minded?

Marcelo Calbucci@calbucci.com · 3mo ago

If you work at Microsoft, May 7 is a big day. I worked there for 7 years. Built Startup Day for people sitting where you are now. Stay or go? Found or join? 16 founders sharing what actually worked. Startup isn't for everyone. Is it for you? May 15. Seattle. Prices go up Friday. Link below.

We just released the tickets for the Startup Fair @ Startup Day 2026. It's free! Limited availability. If you are a tech professional (engineer, product, designer, manager/exec) or a student (CS, AI/ML, MBA), this is for you! Join us on May 15 @ 1:30pm.

Marcelo Calbucci@calbucci.com · 4mo ago

Software engineers, PMs, designers, and CS / ML / MBA students: We're doing a Startup Fair @ Startup Day 2026. Builders from Clarify, Yoodli, Clearly AI, Predictable Machines, and more will talk product, tech, and their roles. No recruiters. May 15. Free 👉 seattleflow.org/fair

👏👏👏 Join us on May 15 in Seattle.

Marcelo Calbucci@calbucci.com · 4mo ago

The Startup Day 2026 speaker lineup is live. 16 founders. 30+ startups built between them. Over $1B raised. Products used by billions. Seattle, May 15. Here's who's on stage. 👇

Check out the Startup Kit! startupday.seattleflow.org/startup-kit

Seattle Startup Kit | Startup Day 2026 | Seattle Flow

Directory of trusted investors, vendors, and service providers reviewed to serve Seattle's startup community.

startupday.seattleflow.org

Marcelo Calbucci@calbucci.com · 4mo ago

In 2010/2011, I printed a book called the Startup Guide. A directory of vendors and service providers for anyone building a startup in Seattle. Today we're launching the Startup Kit. Same idea, different format. A directory to help founders find the resources they need to build+grow their startups.

Join us!

Marcelo Calbucci@calbucci.com · 4mo ago

6,000+ tech layoffs in Seattle. Amazon, Microsoft, Oracle, Meta. You don't need permission to start a company. You don't need all the answers either. You need to learn from founders who've done it recently. That's why I'm putting together @seattleflow.org Startup Day!

Come hear Patrick @ Startup Day 2026! seattleflow.org/startupday

Startup Day 2026 | The Founder Conference | Seattle - May/15

Seattle's one-day conference for founders and future founders. Tactical talks, co-founder matching, advisory meetings, startup fair. May 15, 2026.

seattleflow.org

Marcelo Calbucci@calbucci.com · 4mo ago

Shortcut to building a successful business: find a problem where you already know the market is there. Patrick Thompson built Clarify by skipping problem validation and front-loading business model validation instead. Hear Patrick + other founders at seattleflow.org/startupday

Most founder advice isn’t wrong. It’s just not yours. Marius Ciocirlan drops some meta-advice on how to avoid bad advice. Come listen and meet Marius at Startup Day 2026. seattleflow.org/startupday

It’s always great when you run into people you know at conferences. That’s why we created an Ambassador program for Startup Day 2026. How it works: refer friends, and when 5 of them register, your ticket is free. Darian Parrish from PrwOn just unlocked his free ticket!

From data scientist to IPO, and back at building.

Marcelo Calbucci@calbucci.com · 5mo ago

There is a fine line between hallucination and vision. Ian Wong (Summation CEO, and Opendoor co-founder) got 5 companies to say “yes” before he wrote a single line of code. He's speaking at @seattleflow.org Startup Day 2026 on May 15 in Seattle. seattleflow.org/startupday

Early-bird tickets for Startup Day 2026 end tonight at midnight. $195 today. $295 tomorrow. 15 founder talks. 1:1 investor meetings. Co-Founder Match. @ericries.bsky.social + Terry Myerson keynotes. Startup Fair. Free copy of Eric's new book. seattleflow.org/startupday

Startup Day 2026 | The Founder Conference | Seattle - May/15

Seattle's one-day conference for founders and future founders. Tactical talks, co-founder matching, advisory meetings, startup fair. May 15, 2026.

seattleflow.org

Psyched to see @calbucci.com working on something new for startups. If you'd like to attend, you might want to grab a ticket before prices go up. siliconflorist.com/2026/03/12/c...

Considering heading to Seattle for Startup Day 2026…? Early bird prices end tomorrow – Portland Oregon startups, tech, news, events, jobs, and community

I know Marcelo Calbucci from way way back in the world of startups. So when he told me was working on something new, I immediately wanted to help. That new thing…? It’s called Startup Day. An…

siliconflorist.com

.@ericries.bsky.social wrote the book that changed how startups get built. His next one will change how they stay built.

Eric Ries keynoting Startup Day 2026 + free copy of his new book for every ticket holder. Early bird ends Friday.

Marcelo Calbucci@calbucci.com · 5mo ago

@ericries.bsky.social keynoted Startup Day back in 2011. I guess Seattle founders didn't scare him enough, and he's back for more! Eric is opening Startup Day 2026! The author of The Lean Startup has a new book, Incorruptible. Ticket buyers get a free copy! ☔️🚀 seattleflow.org/startupday

We announced that Terry Myerson will keynote @seattleflow.org Startup Day. Thanks T.A. McCann for making the intro, and Sarah Climaco and @caligirlinpnw.bsky.social for the coordination. It takes a village to bring this to life. I'm glad to have @shaunacausey.bsky.social and Kailin Spencer with me!

We are excited to have Terry join our conference!

Marcelo Calbucci@calbucci.com · 5mo ago

Terry Myerson left Microsoft after 21 years to build Truveta, now a $515M+ company saving lives with data. He's keynoting Startup Day 2026. Early bird ticket sales end this Friday. seattleflow.org/startupday

Early bird tickets for Startup Day 2026 end March 13. Save $100. 400+ founders. 15 talks. 1:1 investor meetings. Co-founder matching. Startup Fair. All in one day at Bell Harbor in Seattle. seattleflow.org/startupday

Startup Day 2026 | The Founder Conference | Seattle - May/15

Seattle's one-day conference for founders and future founders. Tactical talks, co-founder matching, advisory meetings, startup fair. May 15, 2026.

seattleflow.org

Applications just opened!

Marcelo Calbucci@calbucci.com · 5mo ago

Applications open for the Startup Day 2026 Startup Fair. 10-15 startups, demo tables, 400+ founders and investors in the room. Apply by April 10. startupday.seattleflow.org/startup-fair

Built the Startup Day 2026 Conference website and back-office with Claude Code. Zero hand-written code. 3 weeks. 130 tickets. I wrote an article covering the design, strategy, workflow, deployment, testing, etc. startupday.seattleflow.org/how-we-built...

How We Built This | Startup Day 2026 | Seattle Flow

How we built the Startup Day conference website in three weeks using AI, Claude Code, and zero lines of hand-written code.

startupday.seattleflow.org

Let's go!

Marcelo Calbucci@calbucci.com · 5mo ago

May 15th. 400 founders. The conference Seattle's been missing. startupday.seattleflow.org @seattleflow.org

Let's go!

Marcelo Calbucci@calbucci.com · 5mo ago

Something is happening in Seattle right now. Layoffs + AI + Tech + ☔️ = countless side-projects, ready for the next step -> Founders galore. What's missing is a place where it all connects. We built it. 🧵