Coverage varies by state, trade and authority. These are source snapshots, not a census of unique businesses or a live license check. Ratios cannot establish market saturation or contractor quality.
September 2026 edition
The Maine contractor market report
5,725 covered roster records from Maine OPOR (Office of Professional & Occupational Regulation). Recorded source refresh: 2026-09-03. The separate trade breakdown below covers 2 categories.
Figures use separately generated snapshots: overall roster totals, trade counts and mapped-city counts can differ in scope and collection time and should not be added together or treated as a reconciled census. The displayed source refresh date does not date every aggregate. Population and households are sums of the covered ZIP estimates. The income indicator is a population-weighted average of ZIP-level household-income medians, not the state's household median. Census context can refer to a different period from the roster. Housing-unit authorizations refer to the displayed permit year; they are not completed projects. See the ACS estimate guidance and Building Permits Survey for the underlying statistical definitions.
Covered records by trade
| Trade | Covered records | Map |
|---|---|---|
| Electricians | 5,498 | → |
| Plumbers | 2,687 | → |
Cities with the most mapped records
| City | Covered records |
|---|---|
| Hermon | 139 |
| Windham | 122 |
| Biddeford | 121 |
| Portland | 111 |
| Saco | 97 |
| Sidney | 92 |
| Lewiston | 89 |
| Scarborough | 80 |
| Gorham | 78 |
| Auburn | 73 |
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Get the Maine contractor list →Common questions about the Maine contractor market
How many contractor records are in Maine?
5,725 covered roster records appear in our snapshot for Maine. The recorded source refresh date is 2026-09-03. Trade breakdowns are separately generated and are not reconciled to this total.
Which trade has the most contractor records in Maine?
Electricians lead Maine with 5,498 source records, the largest of the 2 trades covered here.
Which Maine cities have the most contractor records?
Hermon, Windham, Biddeford lead Maine by mapped-record count. These counts cover mapped records in our sources, not all businesses in each city.
How current is this Maine market data?
The recorded Maine source refresh date is 2026-09-03; this does not date every trade, mapped-city or Census aggregate on the page. Status reflects collection time, not a live check. Coverage and credential types vary by source.