Day Zero Stack

Exclusive perks that help you move faster from day one.

Author

Michael Morgenstern
October 21, 2025

Happy Tuesday Brex Community,

Here's what we've learned from serving one-third of U.S. startups and processing billion in transactions and deposits: the best founders don't waste time on infrastructure decisions. Within days of opening their Brex account, they're buying the same core stack - not because they read the same blog posts, but because certain tools have simply won their categories. We analyzed the spending patterns across thousands of early-stage companies and found remarkable consistency in what high-velocity founders purchase first: the foundational software they need to ship product, manage equity, communicate with customers, and scale their teams.

So we built the Day Zero Stack - our version of "startup-in-a-box." We partnered with Anthropic, AWS, Carta, Delve, ElevenLabs, Framer, GitHub, Gusto, Notion, OpenAI, Pylon, Pulley, Slack, and Superhuman to deliver exclusive perks that help you move faster from day one. Think of it as letting the data decide so you don't have to. Save your founder instincts for the hard problems. For everything else, trust the collective intelligence of thousands of startups and make the obvious moves fast. That's how you build momentum.

Growing together, Michael Morgenstern

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Elan Adler is Founder and CEO of OneImaging

OneImaging is the radiology platform that simplifies medical imaging for patients, providers, and employers. By connecting people to a nationwide network of accredited imaging centers, the company delivers up to 80% cost savings while ensuring high-quality care and transparent pricing.

Ambassador POV: Imaging (e.g. X-Rays, MRIs, CT scans, mammograms, ultrasounds) is the 2nd most-utilized healthcare service in the US, after prescription drugs. But these radiology procedures are expensive and inaccessible - physicians are coerced by their hospitals’ administration to refer patients into their own hospital systems’ imaging departments… where 1) it might take patients weeks to get an appointment and 2) the average MRI is priced at over $2,000, but costs 10-20% of that to deliver. OneImaging has grown 50x in less than three years, partners with Fortune 100 employers, and integrates with the largest commercial health plans to bring affordable imaging to millions.

 

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Trusted by 1 in 3 US startups, Brex is the financial stack you can bank on — from MVP to IPO. Get up to $6M FDIC insurance, no-fee corporate cards with high limits and top rewards, built-in spend management, seamless travel booking, and AI-powered bill pay.

💡 New customers unlock over $180K in partner perks, including $5K AWS, $4K Google Cloud, and $2.5K OpenAI credits. All free to use.