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Professional Services Businesses in Portland, ME

3 businesses listed · Updated April 22, 2026

Portland, Maine (population 16,783) has 3 professional services businesses listed on LocalSquare, covering ZIP codes 04101, 04102, 04103, 04104, 04109, +4 more.

Listings are claimed by the businesses themselves for $1 per square per month. The longest-running listing on this page has been up since April 2026.

Opus Consulting
Opus Consulting
Portland, ME
A professional firm in Portland, ME. Opus Consulting delivers quality solutions for businesses.
Peter Thompson & Associates
Peter Thompson & Associates
Portland, ME
Quality injury representation at Peter Thompson & Associates in Portland, ME — justice for victims.
Diane Newman
Diane Newman
Portland, ME
Get covered with Diane Newman in Portland, ME — personalized insurance solutions.

Frequently asked questions

How many professional services businesses are listed in Portland, ME?

3 detailed professional services businesses are currently included on this page. Listings must have multiple useful details before this directory page is eligible for search indexing.

How does a business get on this list?

A professional services business serving Portland can add a promotional pin to the LocalSquare community board from $1/month. Directory inclusion also requires enough useful visible information, such as contact details, a website, hours, an address, photos, or review data.

What ZIP codes does Portland, ME include?

Portland is served by ZIP codes 04101, 04102, 04103, 04104, 04109, 04112, 04122, 04123, 04124. Each ZIP has its own community board where local businesses pin their listings.

How is this list ordered?

Listings are ordered with the most recently added first. No ratings are used to order this page.

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