# Factory OS

> Factory OS is a Vallejo, California modular-housing manufacturer that builds wood-frame multifamily apartments inside a former Mare Island Navy shipyard. Co-founded in 2017 by affordable-housing veteran Rick Holliday and contractor Larry Pace, the company treats apartments like cars: rolling them down an assembly line with union labor, cutting build times by ~40% and costs by 20–40% compared with conventional construction.

- **Founded:** 2017
- **Headquarters:** Vallejo, California, United States
- **Founders:** Rick Holliday (Co-founder & CEO), Larry Pace (Co-founder & President)
- **Team size:** ~140 employees (plus union production workers)
- **Products:** Modular Multifamily Buildings, Operating System, Affordable & Supportive Housing
- **Notable:** Raised $55M Series B in 2020 from Lafayette Square, Autodesk, Citi, Facebook, Google and Morgan Stanley, Delivered nearly 1,000 modular apartments across affordable, supportive, student and market-rate projects, Built one of the only union modular-housing factories in the United States

## Products & services

- **Modular Multifamily Buildings** — Wood-frame apartment modules assembled inside Factory OS's Vallejo plant and trucked to urban sites for stack-and-snap installation.
- **Operating System** — An internal design-to-delivery platform integrating Autodesk BIM, lean manufacturing, and on-site project management to coordinate modules from CAD to crane.
- **Affordable & Supportive Housing** — Specialized lines for low-income, supportive, student and workforce housing, including projects for cities, counties and nonprofit developers.

## Achievements

- Raised $55M Series B in 2020 from Lafayette Square, Autodesk, Citi, Facebook, Google and Morgan Stanley
- Delivered nearly 1,000 modular apartments across affordable, supportive, student and market-rate projects
- Built one of the only union modular-housing factories in the United States
- Erected a 100-unit apartment building in under 10 days using stacked modules
- Reduced multifamily construction costs by 20-40% vs. site-built equivalents

## Latest updates

- **2020-11** — Closed $55M Series B led by Lafayette Square with Google, Facebook, Autodesk, Citi and Morgan Stanley.
- **2024** — Acquired by a private-equity-backed consortium and rebranded operations as Harbinger Homes.
- **2025-12** — Harbinger Homes (former Factory OS) reported ramping production at the Vallejo plant.
- **2026-02** — Parent Harbinger filed a WARN notice warning of potential closure and layoffs of 280 employees citing lack of new business.

## Links

- Website: https://factoryos.com
- LinkedIn: https://www.linkedin.com/company/factoryos
- Twitter/X: https://twitter.com/factoryos
- Facebook: https://facebook.com/Factory_OS-1941820096089980/

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Profile page: https://yespress.io/factory-os
Published by YesPress — https://yespress.io
Last updated: 2026-05-19