SIMPLEX GRINNELL
General Building contractor · works on industrial property · active May 1999 – Feb 2026.
44
Properties worked
11
States active
13
Counties active
1,775
Permit filings
56
Trades
Trade breakdown
Permit jobs by trade (top 15).
General Building
1,668
Fire / Hazmat
1,310
Fire Sprinkler
1,212
Addition
805
Alteration / Remodel
803
Fire Alarm
714
Flooring
154
Electrical
122
Mechanical / HVAC
112
Special Suppression
88
Exhaust / Ventilation / Hood
72
Electrical Service / Panel
65
Kitchen / Bath Remodel
56
Plumbing
41
Change of Use / Occupancy
39
Where they work
North CarolinaCaliforniaPennsylvaniaMassachusettsWashingtonMontanaRhode IslandFloridaMarylandTexasMichigan
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Stats are derived from construction permits and work events attributed to this contractor. Fields are shown only where sourced; valuation shown only when the source figure passes quality checks.