Macy Mills

a16z @speedrun gives founders up to $1M… but traction? That’s where our BD team comes in: ⚡ Intros to top customers ⚡ $5M+ in credits (AWS, GCP, OpenAI, Anthropic, NVIDIA, Deel + more) ⚡ Hands-on GTM from day 0 🎥 Hear from our founders + apply now speedrun006.a16z.com/e6

@ChiefSnack @speedrun @a16z hell yeahhhh

2 years ago we were exploring San Francisco for the first time, today we are backed by a16z @speedrun New to the city. No map. Just walking around taking it all in. We turned a corner and boom, there's the @a16z office. Neither of us said anything for a second. Then promise with @benaziration: "Let's walk through those doors one day as founders of a great company." We took a photo of the building and kept walking. March 2026: @siriusai is backed by a16z speedrun In between? We built Sirius from scratch. The retention platform for subscription brands. Talked to customers constantly. Threw out what didn't work. Bet harder on what did. Had weeks where we honestly weren't sure. Kept going anyway. The first photo is us. Inside Speedrun. March, 2026. The second one is that building. October, 2024. I still can't fully believe it. Two founders exploring a new city and somehow the city showed us exactly where we needed to go. If you're a founder out there grinding right now, seriously, keep going. You don't know what's waiting around the next corner. We're just getting started 🚀

My WFH buddy, Sesame

@harpriiya @a16z @speedrun Hell yeahhhh girlfriend

I can finally talk about this!! Hotbox is backed by @a16z @speedrun :) I spent the last 14 months in Korea and now I’m back in SF, where it all began. My entire career exists because of social media. From early NeurIPS papers, to working on ranking algorithms, and then building viral playbooks for startups. The thing I kept coming back to is: every company has no choice but to become a media company. To distribute. To get attention. That is the next generation of entrepreneur’s biggest challenge. That’s the next single person unicorn’s moat. Hotbox is built for that next gen entrepreneur. Businesses run entirely on social now. Hotbox is the sales infra for the social economy. more to come. sign up on our waitlist & lmk if you’ll be at the a16z speedrun demo day 🤫

@imprabhakar425 we are working through the overwhelming interest today and tomorrow!

@_CallMeMacy I applied but haven't got any reply

Do you build for startups? Apply to become an a16z speedrun Marketplace partner and get your product in front of some of the most ambitious founders building the future. We’re looking for B2B companies with products that are a strong fit for startups from pre-seed and beyond.

@ngjupeng @0xQash It’s time to build!

@_CallMeMacy Applying with @0xQash so startup founders dont spend hours managing finance, let them build!

@dalpattapaniya @koshmoney Definitely apply!!

@_CallMeMacy We're offering global financial accounts at @koshmoney to entrepreneurs and businesses. This will be very helpful for them.

@withpriyajain Not yet! Maybe in the future!

@_CallMeMacy do you also have marketplace for services companies?

@KevIsDeving lol love this

@0xKimberly @tmhammer 👀👀

@_CallMeMacy We’ve built out an ai copilot for global founders (managing immigration/visas, finance & compliance cross border) - definitely applying!!

@_CallMeMacy the (market)place to be....! ⭐️

@vaibhavgeek Nope! Anything that will help founders!

@_CallMeMacy Are you looking for businesses > threshold?

@Intelligence_OS thanks for applying!

The system I’ve built can genuinely be meaningful to resolve start-up founder conflicts, vendor/ customer relationship issues and more. In its current form it works amazing for when there is an actual problem that needs solving or crises, provides a constraint aware plan to do so & can provide a variety of assets for the execution. ROI is great if you value time, money & want to prevent frustration. But would be very happy to pilot it with a speedrun startup, and work closely to get the most value out of it before becoming an official partner. Nonetheless, thanks for sharing. Will definitely apply!

@Aronado it's been around! but this is the first time we are opening it up publicly for people to submit their offers :)

@_CallMeMacy is this new ?... interesting literally just messaged you lol

@stefanradoff oh I do!!

@_CallMeMacy Try adding co-work as well

Anyone else having Claude code run while they shower? Just me? 🤭

Apply at: srpartners.a16z.com/sign-up

@jai_mansukhanii Just gonna keep posting this and not sending them?

type shit man.

@YashasGunderia Nice!

@_CallMeMacy No, me too. Even when I eat, but I switched to codex now bcz I'm in their opensource program

@stefanradoff Good lol - I feel infinitely more productive

@_CallMeMacy You’re not alone

Openclaw hang in Santa Monica at the a16z offices hosted by me and @chrysb Come join us!