Independent controls and PLC programming contractor
Program and commission control systems for local factories and warehouses, working on your own or with a few partners.
- $2.5k-12k
- Part-time
- Out and about
Estimates for a small start in the US, not guarantees.
Official data
63,233 US businesses with employees in this field, +1.0% in a year
NAICS 541330 “Engineering services”. Source: U.S. Census Bureau, County Business Patterns 2023.
What it is
You program PLCs, operator screens and simple robot cells for manufacturers and warehouses. You also troubleshoot and upgrade existing machines. Most design and coding happens on your laptop, with trips to the customer's site to test and start up equipment.
Your first three steps
- Pick one or two platforms common in your area (such as Allen-Bradley or Siemens) and set up a practice kit with the software
- Reach out to local manufacturers and integrators with a short list of services and a sample project write-up
- Set up an LLC, get an EIN and quote general and professional liability insurance
Who pays
Small and mid-size manufacturers, packaging and food plants, warehouses, and larger automation firms that subcontract overflow work.
How it makes money
Hourly or day rates for programming and support, fixed-price quotes for small projects, and ongoing support or callout agreements.
Skills that help
- PLC programming (ladder logic and similar)
- Reading electrical drawings
- Clear communication with plant staff
- Careful testing and documentation
Watch out for
- General liability and professional liability (errors and omissions) insurance, since a bug can stop a production line
- Some states require an electrical license for wiring or installing control equipment, so check your state licensing board
- Safety rules such as OSHA lockout/tagout and machine guarding standards, and whether work needs a licensed engineer's sign-off in your state
- Software licenses can be costly and vendor-specific, so check the terms before using them commercially
- Contracts that cover warranty, support after startup and ownership of the code
🔒 Full research report for US
Real cost breakdown with current prices, licences and registration checklist, local competition, pricing, break-even and a 30-day launch plan, with sources.
Coming soonQuestions people ask
How much does it cost to start a PLC programming business?
Estimates suggest startup costs typically around $2,500 to $12,000, depending on your laptop, software and tools. Monthly revenue is estimated at about $3,000 to $15,000. Software licenses can be costly and vendor-specific, so check terms first.
Do I need an electrical license to do controls work?
Some states require an electrical license for wiring or installing control equipment, so check your state licensing board. Also check whether work needs a licensed engineer's sign-off in your state, and which safety rules such as OSHA lockout/tagout apply.
What insurance and contract terms should I plan for?
Check general liability and professional liability (errors and omissions) insurance, since a bug can stop a production line. Contracts should cover warranty, support after startup and ownership of the code.
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