Businesses in Portsmouth, Iowa

As of October 12, 2026, ListRiver's records show 54 active registered businesses in Portsmouth, Iowa. 69% are LLCs. 2 were formed in September 2026.

From official Iowa registry records, updated weekly. Most Portsmouth businesses are in Shelby County. Look up a Iowa business by name.

Businesses on record

Formed in the last 12 months

Formed in September

With a phone number

3 records

New Portsmouth businesses per month

Businesses on record by formation month, through September 2026. Monthly Iowa new-business reports · Get the list of 2 new businesses formed in September 2026

Entity types

LLCs37 · 69%
Corporations10 · 19%
Nonprofits5 · 9%
Limited partnerships2 · 4%

Top ZIP codes

ZIP 5156553 · 98%
ZIP 515601 · 2%

Newest business names registered in Portsmouth

Get all 54 Portsmouth businesses · see price Just the 2 formed in the last 90 days · see price

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This is a small sample, not the full list. To keep automated scrapers from copying our data, we only show a handful of records on public pages. Your downloaded list includes every matching business.

Business	City	Type	Formed
Name hidden	Portsmouth	LLC	Sep 2026
Name hidden	Portsmouth	LLC	Sep 2026
Name hidden	Portsmouth	LLC	May 2026
Name hidden	Portsmouth	LLC	May 2026
Name hidden	Portsmouth	LLC	Oct 2025
Name hidden	Portsmouth	LLC	Jan 2024
Name hidden	Portsmouth	LLC	Jul 2023
Name hidden	Portsmouth	Corporation	May 2023
Name hidden	Portsmouth	LLC	Apr 2023
Name hidden	Portsmouth	Nonprofit	Sep 2022
Name hidden	Portsmouth	LLC	Feb 2022
Name hidden	Portsmouth	LLC	Dec 2020
Name hidden	Portsmouth	LLC	May 2020
Name hidden	Portsmouth	LLC	Dec 2019
Name hidden	Portsmouth	LLC	Dec 2019
Name hidden	Portsmouth	LLC	Dec 2019
Name hidden	Portsmouth	LLC	Sep 2019
Name hidden	Portsmouth	LLC	Mar 2018
Name hidden	Portsmouth	LLC	Nov 2017
Name hidden	Portsmouth	LLC	Oct 2016
Name hidden	Portsmouth	LLC	May 2015
Name hidden	Portsmouth	LLC	Aug 2013
Name hidden	Portsmouth	LLC	Jul 2013
Name hidden	Portsmouth	LLC	Jul 2013
Name hidden	Portsmouth	LLC	Jun 2013

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Common questions about Portsmouth businesses

How many businesses are registered in Portsmouth, Iowa?

ListRiver has 54 active registered businesses in Portsmouth, Iowa on record as of October 12, 2026, from official Iowa business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Portsmouth, Iowa in September 2026?

2 businesses on record in Portsmouth, Iowa were formed in September 2026.

How many new businesses opened in Portsmouth, Iowa in the last 12 months?

5 businesses on record in Portsmouth, Iowa were formed in the 12 months through September 2026.

What is the most common type of business in Portsmouth, Iowa?

LLCs are the most common: 37 of 54 businesses on record (69%), followed by Corporations with 10 (19%).

Where does this data come from?

From Iowa's official business registry. ListRiver loads each new state file, standardizes it, removes duplicates and updates its database weekly. Email and industry details are added from SMBCredit.net where available.

How do I get a list of businesses in Portsmouth, Iowa?

Use ListRiver's list builder to filter Portsmouth, Iowa businesses by entity type, formation date, industry and contact details, see the exact count and price, and download a CSV. Every list includes monthly refresh files.

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/iowa/portsmouth" title="New businesses in Portsmouth, Iowa by month" width="100%" height="370" style="border:0" loading="lazy"></iframe><p style="font:13px sans-serif;margin:4px 0 0">Source: <a href="https://listriver.com/business-lists/iowa/portsmouth">Businesses in Portsmouth, Iowa</a>, ListRiver</p></div>

About this data

Counts come from official Iowa business registry records on file with ListRiver, current as of October 12, 2026. They include businesses that are active on the state register; dissolved and defunct entities are excluded. Contact details are added from SMBCredit.net where available. Formation months reflect the registration date the state reports. See the methodology for sources, update schedules and known limits.