Official source
Just need to verify one license right now? Maine's licensed contractor trades — electricians and plumbers — verify free through the Office of Professional & Occupational Regulation (OPOR) license search. And if you're checking a GENERAL contractor: there is no Maine state license to check — GC diligence here means the entity record, insurance, references, and the permit trail.
Maine is one of the states with no statewide general-contractor license. What the state examines and licenses are the trades — electricians and plumbers, through their OPOR boards — and those records are the ones worth pulling before regulated work starts.
Maine contractor licensing at a glance
Requirements and reciprocity: why Maine doesn't work like license states
There's no GC application fee to quote because there's no GC license: Maine's examined credentials are the electrician and plumber licenses, with fees and prerequisites published by their OPOR boards. For general contracting, Maine law leans on written-contract requirements and consumer protections instead of licensure — which makes references and the permit record the real GC diligence.
Important
Reciprocity: electrical — Maine recognizes New Hampshire and Vermont, the northern New England trio, and the recognition runs among neighbors. It waives the exam, not the process: an endorsed electrician still files with the Maine board.
License-cost and reciprocity figures draw on the US Contractor Licensing Dataset by GetTradeLicense (CC BY 4.0), verified against state sources between April and July 2026. Rules change with rulemaking — confirm current figures with the board before relying on them.
How to get the full Maine roster
The OPOR search answers “is this one person licensed?” If your actual question is “give me all of them” — for the licensed trades, three routes:
Verify one license → the OPOR search. Free, authoritative, about a minute.
Get the raw roster → a records request to OPOR. Maine publishes no bulk file; the formal route is a Freedom of Access Act request to the office. Authoritative and slower.
Get an outreach-ready roster → ContractorRoster. We mirror the state registry continuously (5,725 active records at the last ingest), normalize it into one schema alongside every state we cover, and layer in phone, email, website, and Google ratings where available. Paid — because you're paying for the cleanup and enrichment, not for access to the public record. Maine lists by trade, or this state as part of a multi-state pull from the list builder.
The full comparison — free portals, records requests with real prices, compiled databases — is in every way to get a contractor list, priced.
Next step
Browse licensed Maine electricians and plumbers — every record sourced from the OPOR boards, nearly all with the phone number the state publishes. Or run a one-off check at the OPOR search.