Licensed system designers in Delaware
Delaware’s roster of licensed Class B and Class C designers covers 69 businesses across 3 counties. Pick a county to see who is based there.
Counties with the most licensed system designers
Every county with licensed system designers
Where the roster is filed, and where the work happens
These records are organised by the address on the licence, and that address is not a service area. A Delaware licence is granted by Delaware DNREC and is valid across the state — the county tells you where the business is, not the limit of where they will go.
In practice a rural county showing two licensed system designers is rarely the real choice set. Every county page here lists its neighbours for exactly that reason.
Records as published August 26, 2026.