Lumber
AI Powered Construction Payroll and Workforce Management Software
San Jose, United States · Founded 2023 · $21.0M raised
- Headquarters
- San Jose, California
- Employees
- 51–200
- Founded
- 2023
- Business Model
- B2B
- Website
- lumberfi.com
- Total Funding
- $21.0M
- Last Round
- $15.5M Series AJun 2025
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Lumber provides a workforce platform built for construction companies, combining payroll, human resources, field operations, and AI-supported compliance in one system. It helps contractors automate payroll, manage hiring and credentials, track crews and equipment across jobsites, and monitor complex compliance requirements. Its AI agents also complete repetitive administrative work and generate audit-ready documentation.
Summary
Lumber is an Artificial Intelligence company based in San Jose, United States, founded in 2023. It has raised $21.0M in total across 2 rounds, most recently a $15.5M Series A round in Jun 2025. Investors include Foundation Capital, Tishman Speyer and Carbide Ventures.
Tech & App Stack
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Funding History
Jun 2025
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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