As of October 4, 2026, ListRiver's records show 1,307 active registered businesses in Oak Park, California. 55% are LLCs.
How many businesses are registered in Oak Park, California?
ListRiver has 1,307 active registered businesses in Oak Park, California on record as of October 4, 2026, from official California business registry data. Dissolved and defunct businesses are not counted.
How many new businesses were formed in Oak Park, California in September 2026?
0 businesses on record in Oak Park, California were formed in September 2026.
How many new businesses opened in Oak Park, California in the last 12 months?
83 businesses on record in Oak Park, California were formed in the 12 months through September 2026.
What is the most common type of business in Oak Park, California?
LLCs are the most common: 719 of 1,307 businesses on record (55%), followed by Corporations with 434 (33%).
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 Oak Park, California?
Use ListRiver's list builder to filter Oak Park, 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.
Free to use on any site, and it updates itself every month. Copy this code and paste it into your page. Preview the chart.
Counts come from official California business registry records on file with ListRiver, current as of October 4, 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.