Factory OS

Factory OS (styled Factory_OS) is an off-site construction company founded in 2017 by Rick Holliday and Larry Pace that industrialized multifamily and affordable housing production on an assembly line inside a 275,000-square-foot facility in Building 680 on Mare Island in Vallejo, California. Union carpenters build wood-frame housing modules across roughly two dozen stations in a 33-step process, and the finished modules are trucked to the project site and assembled — an approach the company says cuts production time by about half and production cost by a quarter against conventional site-built construction. It raised roughly $132 million across three rounds, including $60 million from JPMorgan Chase and Saint-Gobain in 2021, and delivered more than 4,000 homes across California and Hawaii, about 90 percent of them affordable housing. In May 2024 the company was recapitalized and renamed Harbinger Homes (legal entity Harbinger Production Inc.), with Tom Smith as CEO and Kevin Brown as president; factoryos.com now 301-redirects every path to harbinger.homes. Harbinger filed a WARN notice on 12 February 2026 covering all 280 employees, citing a lack of new business and loss of capital funding, with layoffs beginning 13 April 2026. Factory OS is a manufacturer of physical housing modules, not a software company: it operates no developer program, API, SDK, webhook surface or machine-readable specification of any kind, and its GitHub organization has no public repositories.

Factory OS is profiled on the APIs.io network. Tagged areas include Company, Construction, Modular Construction, Offsite Construction, and Manufacturing.

🌐 Visit website 📡 Source on GitHub
6.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
0 APIs
CompanyConstructionModular ConstructionOffsite ConstructionManufacturingAffordable HousingMultifamily HousingReal EstateConstruction Technology

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 6.4/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 5.7 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/factory-os: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Factory Os Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Contact
Contact

Company 5

The organization behind the API

Website
Website
 FormerWebsite
FormerWebsite
 Careers
Careers
 LinkedIn
LinkedIn
 LinkedIn
LinkedIn

Other 1

Properties that don't map to a standard resource type

SecondaryMarket
SecondaryMarket

Source (apis.yml)

apis.yml Raw ↑ 
aid: factory-os
name: Factory OS
description: 'Factory OS (styled Factory_OS) is an off-site construction company founded in 2017 by Rick Holliday and Larry
  Pace that industrialized multifamily and affordable housing production on an assembly line inside a 275,000-square-foot
  facility in Building 680 on Mare Island in Vallejo, California. Union carpenters build wood-frame housing modules across
  roughly two dozen stations in a 33-step process, and the finished modules are trucked to the project site and assembled
  — an approach the company says cuts production time by about half and production cost by a quarter against conventional
  site-built construction. It raised roughly $132 million across three rounds, including $60 million from JPMorgan Chase and
  Saint-Gobain in 2021, and delivered more than 4,000 homes across California and Hawaii, about 90 percent of them affordable
  housing. In May 2024 the company was recapitalized and renamed Harbinger Homes (legal entity Harbinger Production Inc.),
  with Tom Smith as CEO and Kevin Brown as president; factoryos.com now 301-redirects every path to harbinger.homes. Harbinger
  filed a WARN notice on 12 February 2026 covering all 280 employees, citing a lack of new business and loss of capital funding,
  with layoffs beginning 13 April 2026. Factory OS is a manufacturer of physical housing modules, not a software company:
  it operates no developer program, API, SDK, webhook surface or machine-readable specification of any kind, and its GitHub
  organization has no public repositories.'
image: https://framerusercontent.com/images/dGrxSMGKQjOw59MximONvOdWOU.jpg
url: https://raw.githubusercontent.com/api-evangelist/factory-os/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- Construction
- Modular Construction
- Offsite Construction
- Manufacturing
- Affordable Housing
- Multifamily Housing
- Real Estate
- Construction Technology
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/factory-os-domain-security.yml
- type: LLMsTxt
  url: llms/factory-os-llms.txt
- type: Website
  url: https://harbinger.homes/
- type: FormerWebsite
  name: factoryos.com (301 redirects to harbinger.homes)
  url: https://factoryos.com/
- type: Contact
  url: https://harbinger.homes/contact
- type: Careers
  url: https://recruiting.paylocity.com/recruiting/jobs/All/f6d0f7bd-df42-43ee-8899-f5e5bc26297e/Harbinger-Production-Inc
- type: LinkedIn
  url: https://www.linkedin.com/company/harbinger-production/
- type: LinkedIn
  name: Factory OS (legacy company page)
  url: https://www.linkedin.com/company/factoryos
- type: GitHubOrganization
  url: https://github.com/factoryos
- type: SecondaryMarket
  name: Forge Global private-market listing
  url: https://forgeglobal.com/factory-os_stock/
x-enrichment:
  date: '2026-08-12'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Factory OS manufactures physical wood-frame housing modules on an assembly line in Vallejo, California — after its
    May 2024 rename to Harbinger Homes, factoryos.com 301-redirects every path (including /api, /docs, /developers and all
    /.well-known/*) to harbinger.homes, which is a two-URL Framer marketing brochure whose own sitemap.xml lists only / and
    /contact, and where /openapi.json, /graphql, /llms.txt and every /.well-known/ path return a real 404; no api./docs./developer.
    subdomain resolves on either domain, and the company's own GitHub organization has no public repositories.
  evidence:
  - url: https://factoryos.com/openapi.json
    status: 301
  - url: https://harbinger.homes/openapi.json
    status: 404
  - url: https://harbinger.homes/graphql
    status: 404
  - url: https://harbinger.homes/llms.txt
    status: 404
  - url: https://harbinger.homes/.well-known/agent-card.json
    status: 404
  - url: https://harbinger.homes/.well-known/security.txt
    status: 404
  - url: https://harbinger.homes/sitemap.xml
    status: 200
  - url: https://harbinger.homes/
    status: 200
  checked: '2026-08-12'