Registered fire sprinkler fitter apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Ohio's licence ladder. Updated nightly.
Ohio has 271 registered fire sprinkler fitter apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 58 counties, 0.2 per 10,000 residents. That is 1.6 apprentices for every 100 employed fire sprinkler fitters in the state, the rate at which the trade is training its own replacements.
A free report on your market: what the trade pays, how that compares with nearby counties, and where your credential sits against the local licensed workforce. No account needed.
Registered fire sprinkler fitter apprentices by county of the apprentice, largest first. Each county links to its fire sprinkler fitters market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Franklin County | 52 | 19% | 0.4 |
| Fairfield County | 15 | 6% | 0.9 |
| Hamilton County | 15 | 6% | 0.2 |
| Delaware County | 13 | 5% | 0.6 |
| Montgomery County | 11 | 4% | 0.2 |
| Portage County | 11 | 4% | 0.7 |
| Knox County | 10 | 4% | 1.6 |
| Mahoning County | 9 | 3% | 0.4 |
| Clermont County | 7 | 3% | 0.3 |
| Lawrence County | 7 | 3% | 1.2 |
| Licking County | 7 | 3% | 0.4 |
| Trumbull County | 7 | 3% | 0.3 |
| Clark County | 6 | 2% | 0.4 |
| Madison County | 6 | 2% | 1.3 |
| Summit County | 6 | 2% | 0.1 |
| 43 other counties | 89 | 33% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Ohio register ATI reads carries no separate apprentice-tier credential for fire sprinkler fitters; its ladder for this trade starts at Journeyman (2,182 active records, read September 16, 2026). Registered apprentices in the county table above are counted from the federal apprenticeship system, not from the licence register.
Credential types the Ohio Department of Commerce, Division of State Fire Marshal, Testing and Registration Bureau issues for this trade: Individual Fire Protection Certification, category 1: Automatic sprinkler and standpipe systems, Individual Fire Protection Certification, category 2: Fire service mains and water tanks, Individual Fire Protection Certification, category 3: Fire pumps, Individual Fire Protection Certification, category 9: Fire pump diesel technician, Provisional individual certification (Fire Protection Apprentice License, form COM5060), Fire Protection Company Certification. See how to get a fire sprinkler fitter license in Ohio for hours, exams and renewal.
Sources: registered apprentices: DOL RAPIDS apprenticeship FY2025, active status, as of December 31, 2025; employment: BLS QCEW construction x OEWS occupation share (estimate); licence tiers: Ohio register read September 16, 2026; population: U.S. Census 2023 estimates.
This page is a free snapshot of fire sprinkler fitters in Ohio. Track the same market every night and see which contractors just got licensed, added a trade, or dropped off, and pull the full record, with contact details, on any of them. Ask it anything, track what matters, and get the weekly intelligence email. Free trial, cancel anytime.