Businesses in Monte Rio, California

As of July 6, 2026, ListRiver's records show 67 active registered businesses in Monte Rio, California. 55% are LLCs.

From official California registry records, updated weekly. Most Monte Rio businesses are in Sonoma County. Look up a California business by name.

Businesses on record

Formed in the last 12 months

Formed in September

With a registered agent

99%

66 records

New Monte Rio businesses per month

Businesses on record by formation month, through September 2026. Monthly California new-business reports

Entity types

LLCs37 · 55%
Corporations21 · 31%
Other8 · 12%
Limited partnerships1 · 1%

Top ZIP codes

ZIP 9546266 · 99%
ZIP 954461 · 1%

Newest business names registered in Monte Rio

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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	Monte Rio	LLC	Jan 2026
Name hidden	Monte Rio	Corporation	Jan 2026
Name hidden	Monte Rio	LLC	Jan 2026
Name hidden	Monte Rio	LLC	Jan 2026
Name hidden	Monte Rio	LLC	Jan 2025
Name hidden	Monte Rio	LLC	Jan 2025
Name hidden	Monte Rio	Corporation	Jan 2025
Name hidden	Monte Rio	Corporation	Jan 2025
Name hidden	Monte Rio	Corporation	Jan 2025
Name hidden	Monte Rio	Corporation	Jan 2024
Name hidden	Monte Rio	LLC	Jan 2024
Name hidden	Monte Rio	LLC	Jan 2024
Name hidden	Monte Rio	LLC	Jan 2024
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	Limited partnership	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	LLC	Jan 2023
Name hidden	Monte Rio	Corporation	Jan 2022
Name hidden	Monte Rio	LLC	Jan 2022
Name hidden	Monte Rio	LLC	Jan 2022

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Common questions about Monte Rio businesses

How many businesses are registered in Monte Rio, California?

ListRiver has 67 active registered businesses in Monte Rio, California on record as of July 6, 2026, from official California business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Monte Rio, California in September 2026?

0 businesses on record in Monte Rio, California were formed in September 2026.

How many new businesses opened in Monte Rio, California in the last 12 months?

4 businesses on record in Monte Rio, California were formed in the 12 months through September 2026.

What is the most common type of business in Monte Rio, California?

LLCs are the most common: 37 of 67 businesses on record (55%), followed by Corporations with 21 (31%).

Where does this data come from?

From California'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 Monte Rio, California?

Use ListRiver's list builder to filter Monte Rio, California 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/california/monte-rio" title="New businesses in Monte Rio, California 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/california/monte-rio">Businesses in Monte Rio, California</a>, ListRiver</p></div>

About this data

Counts come from official California business registry records on file with ListRiver, current as of July 6, 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.