Stable gave 15,000+ businesses a permanent address and an AI mailbox - so the one analog chore left in a remote company finally went digital.
A company of forty people, spread across nine cities, has no front desk. The letter - a tax notice, a check, a compliance form - lands in a metal box on a street none of them live on. This is the problem Stable decided was worth a company.
Remote work solved almost everything. You can hire from a laptop, bank from an app, ship a product to a customer you'll never meet. Then a single piece of paper shows up at a physical address, and suddenly the whole distributed machine has a hard dependency on somebody being in one specific building on one specific day.
Stable's answer is deceptively plain: give every business a real, permanent U.S. address, then put the mailroom behind that address into software. When mail arrives, Stable scans it, digitizes it, and - increasingly - lets AI summarize what's inside before a human even opens the dashboard. The check gets deposited. The compliance letter gets routed. The junk gets shredded. Nobody drives to the post office.
Founded in 2019 by Sarah Ahmad and Collin Pham, and shaped inside Y Combinator's Winter 2020 batch, Stable took one of the least glamorous corners of running a business and treated it like infrastructure. The bet was that "boring" and "unsolved" are different words, and that a lot of money and anxiety hides in the gap between them.
It turned out to be a real category. Startups needed an address to register with the state and satisfy the IRS. Enterprises needed a mailroom that didn't require a room. Regulated industries - healthcare, insurance, finance - needed mail handled in ways that pass a SOC 2 or HIPAA review. Stable built for all of them, from day one to IPO.
Stable bundles the address, the scanning, and the downstream chores that used to mean four separate vendors.
Every letter scanned, digitized, searchable, and summarized by AI - with role-based access for the team.
Permanent U.S. business addresses to register a company, satisfy banks and the IRS, and keep your home private.
Legal representation and compliance-mail handling in any of the 50 states, folded into the same account.
Paper checks that arrive by mail get processed and deposited - the delay becomes a workflow.
Route mail into the tools teams already use, with integrations and programmatic hooks.
Assisted switching for businesses migrating off an old address or a legacy provider.
"Make it simple for businesses to start and operate from anywhere."
Sarah Ahmad and Collin Pham looked at the corporate mailbox and saw a software company hiding inside it.
Leads Stable's vision of location-independent operations, framing physical mail as the last dependency remote companies couldn't shake.
Built the technical backbone that turns a scanned envelope into searchable, automatable, integration-ready data.
Sarah Ahmad and Collin Pham start building a virtual address and mailroom for businesses that live everywhere and nowhere.
Stable joins YC W20, backed by operators including Lattice's Jack Altman and Yelp's Geoff Donaker.
Registered agent, check deposit, integrations, and enterprise mail routing turn a single feature into a full mailroom.
AI summaries and automations sit on top of 15,000+ businesses' incoming mail - the dashboard reads the letter for you.
Same forty-person company, same nine cities, same metal box on a street none of them live on. Except the box is a Stable address now.
The certified letter lands. Within hours it's a scan in a dashboard, tagged and summarized, sitting in front of the two people who actually need it. The check inside gets deposited without anyone touching a bank lobby. The compliance form gets routed to legal before a deadline can become a fine. The building on that street stopped being a single point of failure and became, quietly, just an address.
That's the shift Stable sells: not the excitement of new work, but the disappearance of old work. A whole category of small dreads - the missed notice, the lost check, the home address on a public filing - simply stops happening. The mailroom is still there. You just never have to walk into it again.