# Stable

> Stable is an AI-powered virtual mailbox and business address service that turns the office mailroom into software. Founded in 2019 and part of Y Combinator's Winter 2020 batch, the company gives distributed and remote-first businesses a permanent U.S. address, scans and digitizes incoming physical mail, and automates downstream workflows like check deposits, registered agent filings, and routing. More than 15,000 businesses - from startups to enterprises like Gusto, Brex, and DoorDash - use Stable to handle mail from anywhere.

- **Founded:** 2019
- **Headquarters:** San Francisco, California, United States
- **Founders:** Sarah Ahmad (Co-Founder & CEO), Collin Pham (Co-Founder & CTO)
- **Team size:** Approximately 30-77 employees (sources vary)
- **Products:** Virtual Mailbox, Virtual Address, Mail Processing & Scanning, Registered Agent Services, Electronic Check Deposit
- **Notable:** Grew to serve 15,000+ businesses handling physical mail digitally., Backed by Y Combinator and notable operators including Lattice's Jack Altman and Yelp's Geoff Donaker., Onboarded well-known customers including Gusto, Brex, Hims, and DoorDash.

## Products & services

- **Virtual Mailbox** — An online platform that scans, digitizes, and organizes incoming physical mail with AI summaries, search, and role-based access.
- **Virtual Address** — Premium, permanent U.S. business addresses that can be used to register a company, satisfy the IRS and banks, and protect home privacy.
- **Mail Processing & Scanning** — In-house digitization of mail so teams can read, forward, shred, or archive from a dashboard.
- **Registered Agent Services** — Legal representation and compliance mail handling in any U.S. state.
- **Electronic Check Deposit** — Automated processing and deposit of paper checks received by mail.
- **Automations & Integrations** — Workflow automation and API integrations that route mail into the tools teams already use.
- **Change of Address Support** — Assisted switching for businesses migrating from an old address or provider.

## Achievements

- Grew to serve 15,000+ businesses handling physical mail digitally.
- Backed by Y Combinator and notable operators including Lattice's Jack Altman and Yelp's Geoff Donaker.
- Onboarded well-known customers including Gusto, Brex, Hims, and DoorDash.
- Built HIPAA and SOC 2-aligned mail handling for regulated industries like healthcare, finance, and insurance.

## Latest updates

- **2025-07** — Positioned as an AI-powered mail management platform with AI mail summaries and automation integrations, serving 15,000+ businesses.
- **2020-01** — Participated in Y Combinator's Winter 2020 batch as a virtual address and mailroom for startups.

## Links

- Website: https://usestable.com
- LinkedIn: https://www.linkedin.com/company/usestable
- Twitter/X: https://x.com/usestable

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Profile page: https://yespress.io/stable
Published by YesPress — https://yespress.io
Last updated: 2026-07-02