How to Start a Commercial Construction Company in the USA


Commercial construction in the USA pays significantly better margins than residential – but the entry requirements are substantially higher. Here’s what it takes.
Key Differences: Commercial vs Residential
| Factor | Residential | Commercial |
|---|---|---|
| Contract size | $5K-$500K | $100K-$50M+ |
| Insurance minimums | $1M GL | $2M-$5M GL |
| Bonding | Often optional | Almost always required |
| Payment terms | Deposit + completion | AIA payment applications, 30-60 day terms |
| Prequalification | Rarely required | Routinely required |
| Licensing | Varies by state | Stricter requirements |
Prequalification Requirements
Before most commercial clients award contracts, they require prequalification demonstrating: – Financial capacity – minimum annual revenue, working capital ratio – Experience – completed projects of similar size and scope – Safety record – OSHA 300 log, EMR (Experience Modification Rate) below 1.0 – Insurance – certificates naming the client as additional insured – Bonding – Performance and Payment bonds, typically 100% of contract value
Major clients use platforms like ISNetworld, Avetta, or Browz for vendor prequalification.
OSHA Requirements for Commercial Construction

Commercial construction sites in the US typically require: – OSHA 10 for all workers – OSHA 30 for supervisors and foremen – Site-specific safety plans – Regular toolbox talks documented in writing
OSHA 10 and 30 courses are available online ($30-$200) through OSHA-authorized providers.
Frequently Asked Questions
At minimum: $2M/$4M General Liability, Workers Compensation (legally required with any employees), Commercial Auto, and Builder’s Risk per project. Many commercial clients require $5M GL and an umbrella policy. See your state’s AGC chapter for market norms.
Start with subcontracting on commercial projects to build your project history and safety record. Direct bidding on commercial GC work requires a proven portfolio – typically 3-5 completed projects of comparable scope.
CoreQuote is a quoting and invoicing app for US construction companies. Download free on Android — get CoreQuote on Google Play.







