Agencies · Reviews · Portsmouth, New Hampshire
By Jon Merwin, Founder and CEO, Licensed Insurance Advisor
Published October 19, 2026 · Google data checked October 19, 2026
Which insurance agencies in Portsmouth, NH have the most Google reviews? We checked every agency office in the city on October 19, 2026, independent and captive alike, and ranked the five listings with the most reviews. We’re Portsmouth Atlantic Insurance, an independent agency on Islington Street, and our listing is on this list, so we’ve spelled out exactly how we counted.
Top 5 at a glance
| Rank | Agency office (Google listing) | Type | Google reviews | Google rating |
|---|---|---|---|---|
| 1 | Portsmouth Atlantic Insurance, 601 Islington St, Portsmouth | Independent | 592 | 5.0 |
| 2 | Aileen Dugan – State Farm Insurance Agent, Middle St, Portsmouth | Captive (State Farm) | 331 | 4.9 |
| 3 | Avery Insurance, Islington St, Portsmouth | Independent | 146 | 5.0 |
| 4 | Karen Wright: Allstate Insurance, Greenleaf Woods Dr, Portsmouth | Captive (Allstate) | 128 | 4.9 |
| 5 | Summit Brokerage, Vaughan Mall, Portsmouth | Independent | 105 | 5.0 |
Google Maps review counts and ratings read October 19, 2026. Ranked by review count; a tie would go to the higher rating.
How we ranked them
Same-day counts. We read every review count and rating from each office’s public Google Maps listing on October 19, 2026, about 2:55 PM Eastern.
Every agency office in Portsmouth. We included both independent agencies, which represent several insurance companies, and captive agencies, which represent one company (such as State Farm, Allstate or Farmers agents). Each row is labeled. The listing’s street address had to be in Portsmouth; nearby offices in other towns were left out.
What we left out. Insurance company service centers, AAA offices, online-only agencies, and agencies that sell only health, Medicare or life insurance, the same rules we use in our New Hampshire and Connecticut top 10. The Cronin Agency (156 reviews) focuses on Medicare and retirement planning, so it falls outside this list.
Sorted by review count. Ratings are shown for reference. A tie in review count goes to the higher rating. Each Google listing is ranked on its own.
Disclosure. Portsmouth Atlantic Insurance wrote this page and our own listing is on it. We did not contact or receive anything from the other agencies. Counts change daily, so the live Google listing is always the most current number. We plan to recheck every quarter.
Independent or captive: what the label means
An independent agency can quote policies from several insurance companies. A captive agency represents one company and offers that company’s policies. Both can serve clients well; the label simply tells you how many companies an agent can quote.
The top 5, in order
1. Portsmouth Atlantic Insurance, 601 Islington St, Portsmouth
Google reviews: 592 · Rating: 5.0 · Independent
This is our agency. Family-owned Portsmouth Atlantic Insurance is an independent agency that compares 40+ carriers and is licensed in 10 states. New Hampshire’s highest-rated agency on Google, our Portsmouth listing has 592 Google reviews. We write home, auto, umbrella and business insurance.
2. Aileen Dugan – State Farm Insurance Agent, Middle St, Portsmouth
Google reviews: 331 · Rating: 4.9 · Captive (State Farm)
A State Farm agency on Middle Street. As a captive agency, it offers State Farm policies.
3. Avery Insurance, Islington St, Portsmouth
Google reviews: 146 · Rating: 5.0 · Independent
An independent agency on Islington Street in downtown Portsmouth, with another office in Wolfeboro.
4. Karen Wright: Allstate Insurance, Greenleaf Woods Dr, Portsmouth
Google reviews: 128 · Rating: 4.9 · Captive (Allstate)
An Allstate agency on Greenleaf Woods Drive. As a captive agency, it offers Allstate policies.
5. Summit Brokerage, Vaughan Mall, Portsmouth
Google reviews: 105 · Rating: 5.0 · Independent
An independent insurance brokerage at Vaughan Mall in downtown Portsmouth.
For statewide rankings, see our top 10 insurance agencies in New Hampshire and Connecticut.
Questions about your home, auto, umbrella or business insurance? Call us at (603) 431-4020 or email insure@portsmouthatlanticins.com. Office hours are Monday through Thursday, 9 AM to 5 PM, and Friday, 8 AM to 4 PM Eastern.
Frequently asked questions
Which insurance agency in Portsmouth, NH has the most Google reviews?
As of October 19, 2026, Portsmouth Atlantic Insurance had the most Google reviews of any agency office in Portsmouth, at 592 with a 5.0 rating. Counts change daily.
How was this list ranked?
By Google review count on each office’s public Google Maps listing, read on October 19, 2026. Ratings are shown for reference, and a tie would go to the higher rating.
Does the list include captive agents like State Farm and Allstate?
Yes. Every insurance agency office in Portsmouth was considered, independent and captive. Each one is labeled.
What is the difference between an independent and a captive agency?
An independent agency can quote policies from several insurance companies. A captive agency represents one company and offers that company’s policies.
Who wrote this list?
Portsmouth Atlantic Insurance wrote it, and our own listing is included. We did not contact or receive anything from the other agencies.