Businesses in Rainier, Oregon

As of October 14, 2026, ListRiver's records show 580 active registered businesses in Rainier, Oregon. 58% are LLCs. 7 were formed in September 2026.

From official Oregon registry records, updated weekly. Most Rainier businesses are in Columbia County. Look up a Oregon business by name.

Businesses on record

580

Formed in the last 12 months

116

Formed in September

With a registered agent

76%

439 records

New Rainier businesses per month

Businesses on record by formation month, through September 2026. Monthly Oregon new-business reports · Get the list of 7 new businesses formed in September 2026

Entity types

LLCs339 · 58%
Other139 · 24%
Nonprofits52 · 9%
Corporations50 · 9%

Newest business names registered in Rainier

Get all 580 Rainier businesses · see price Just the 14 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	Rainier	Other	Oct 2026
Name hidden	Rainier	LLC	Oct 2026
Name hidden	Rainier	Other	Oct 2026
Name hidden	Rainier	LLC	Sep 2026
Name hidden	Rainier	Other	Sep 2026
Name hidden	Rainier	LLC	Sep 2026
Name hidden	Rainier	Other	Sep 2026
Name hidden	Rainier	Other	Sep 2026
Name hidden	Rainier	LLC	Sep 2026
Name hidden	Rainier	LLC	Sep 2026
Name hidden	Rainier	LLC	Aug 2026
Name hidden	Rainier	Other	Aug 2026
Name hidden	Rainier	LLC	Aug 2026
Name hidden	Rainier	LLC	Aug 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	Other	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	LLC	Jul 2026
Name hidden	Rainier	Other	Jul 2026

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Common questions about Rainier businesses

How many businesses are registered in Rainier, Oregon?

ListRiver has 580 active registered businesses in Rainier, Oregon on record as of October 14, 2026, from official Oregon business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Rainier, Oregon in September 2026?

7 businesses on record in Rainier, Oregon were formed in September 2026.

How many new businesses opened in Rainier, Oregon in the last 12 months?

116 businesses on record in Rainier, Oregon were formed in the 12 months through September 2026.

What is the most common type of business in Rainier, Oregon?

LLCs are the most common: 339 of 580 businesses on record (58%), followed by Nonprofits with 52 (9%).

Where does this data come from?

From Oregon'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 Rainier, Oregon?

Use ListRiver's list builder to filter Rainier, Oregon 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/oregon/rainier" title="New businesses in Rainier, Oregon 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/oregon/rainier">Businesses in Rainier, Oregon</a>, ListRiver</p></div>

About this data

Counts come from official Oregon business registry records on file with ListRiver, current as of October 14, 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.