Businesses in Union County, Ohio

As of October 13, 2026, ListRiver's records show 323 active registered businesses in Union County, Ohio, the 24th most among Ohio counties. 81% are LLCs. 65 were formed in September 2026. That is 1% of all Ohio businesses on record.

From official Ohio registry records, updated weekly. Look up a Ohio business by name.

Businesses on record

323

Formed in the last 12 months

192

Formed in September

With a registered agent

32%

104 records

New Union County businesses per month

Businesses on record by formation month, through September 2026. Monthly Ohio new-business reports · Get the list of 65 new businesses formed in September 2026

Entity types

LLCs261 · 81%
Corporations52 · 16%
Other10 · 3%

Top cities

Marysville168 · 52%
Plain City133 · 41%
Richwood10 · 3%
Milford Center4 · 1%
Delaware2 · 1%
Raymond2 · 1%
Columbus1 · 0%
Reynoldsburg1 · 0%
Dublin1 · 0%
Parma1 · 0%

Top ZIP codes

ZIP 43040169 · 52%
ZIP 43064134 · 41%
ZIP 4334412 · 4%
ZIP 430455 · 2%
ZIP 430673 · 1%

Industries (where known)

Professional & Technical Services4 · 15%
Construction4 · 15%
Real Estate4 · 15%
Information3 · 12%
Manufacturing3 · 12%
Retail Trade2 · 8%
Administrative & Support Services2 · 8%
Agriculture, Forestry, Fishing1 · 4%
Educational Services1 · 4%
Management of Companies1 · 4%

Newest business names registered in Union County

Get all 323 Union County businesses · see price Just the 128 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	Plain City	LLC	Oct 2026
Name hidden	Marysville	LLC	Oct 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Reynoldsburg	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026
Name hidden	Raymond	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Plain City	LLC	Sep 2026
Name hidden	Marysville	LLC	Sep 2026

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Common questions about Union County businesses

How many businesses are registered in Union County, Ohio?

ListRiver has 323 active registered businesses in Union County, Ohio on record as of October 13, 2026, from official Ohio business registry data. Dissolved and defunct businesses are not counted.

How many new businesses were formed in Union County, Ohio in September 2026?

65 businesses on record in Union County, Ohio were formed in September 2026.

How many new businesses opened in Union County, Ohio in the last 12 months?

192 businesses on record in Union County, Ohio were formed in the 12 months through September 2026.

What is the most common type of business in Union County, Ohio?

LLCs are the most common: 261 of 323 businesses on record (81%), followed by Corporations with 52 (16%).

Where does this data come from?

From Ohio'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 Union County, Ohio?

Use ListRiver's list builder to filter Union County, Ohio 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.

More Ohio business lists

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<div style="max-width:520px"><iframe src="https://listriver.com/embed/new-businesses/ohio/union-county" title="New businesses in Union County, Ohio 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/ohio/union-county">Businesses in Union County, Ohio</a>, ListRiver</p></div>

About this data

Counts come from official Ohio business registry records on file with ListRiver, current as of October 13, 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.