Ohio Business Search

Find Ohio business entities by name or registration number. Look up addresses, entity types, and company details for OH-registered LLCs, corporations, and more.

Top Companies in Ohio

Largest Ohio business entities by revenue. Filter by employee size or sort by different criteria.

Company NameEmailCountryCityAddress 1PhoneState/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
Cleveland Clinic Ophthalmology
*****@***.***
USA
Twinsburg
8701 Darrow Rd
+** ********
Summit
44087
my.*****
2017
$8,958,297,084
11
N/A
N/A
N/A
2
United Financial Casualty Company, INC
******@****.***
USA
Cleveland
6300 Wilson Mills Rd
+** *********
Cuyahoga
44143
N/A
2004
$4,313,816,850
5
N/A
N/A
1359701
3
Ohio Refining Company LLC
*******@*****.***
USA
Dublin
5550 Blazer Pkwy Ste 200
+** ********
Mahoning
43017
N/A
2008
$4,000,000,000
560
N/A
N/A
N/A
4
Progressive Northwestern Insurance Company
********@******.***
USA
Cleveland
6300 Wilson Mills Rd
+** *********
Cuyahoga
44143
progressive.*****
2003
$2,498,722,741
25
N/A
N/A
23247281 WA
5
Nationwide Children's Hospital, INC.
*********@*******.***
USA
Columbus
700 Childrens Dr
+** ********
Franklin
43205
nationwidechildrens.*****
1994
$2,271,795,000
2
N/A
N/A
593488
6
Us Healthcare System
**********@********.***
USA
Cincinnati
3200 Burnet Ave
+** *********
Hamilton
45229
uchealth.*****
2010
$2,255,775,923
11
N/A
N/A
273850988
7
U Hcmc
***********@***.***
USA
Cleveland
11100 Euclid Ave
+** ********
Cuyahoga
44106
uhseidman.*****
2015
$2,240,719,360
58
N/A
N/A
N/A
8
John Wayne Desrosiers Living Trust
************@****.***
USA
Hilliard
4000 Leap Rd Unit 1203
+** *********
Franklin
43026
N/A
2022
$2,000,000,000
1
N/A
N/A
N/A
9
Arthur G. James Cancer Hospital And Richard J. Solove Research Institute Foundation
*****@*****.***
USA
Columbus
460 W 10th Ave
+** ********
Franklin
43210
cancer.*****
1985
$1,947,339,782
17
N/A
N/A
496220
10
Ohiohealth Riverside Methodist Hospital
******@******.***
USA
Columbus
3535 Olentangy River Rd
+** *********
Franklin
43214
ohiohealth.*****
1997
$1,698,883,468
944
N/A
N/A
N/A
Download 2,382,758 Companies
Ohio-Companies.csv

Ohio Business Entity Search

Looking up a Ohio business entity? Our database lets you search by company name or registration number and get instant results — including the company's registered address, entity type (LLC, Corporation, etc.), founding year, industry classification, and employee count.

This is a faster alternative to the Ohio Secretary of State's official filing database, with additional data fields like revenue estimates and corporate hierarchy that state registries don't provide. Results cover both active and inactive entities.

What you can look up

  • Registered business address
  • Entity type (LLC, Corp, LP, etc.)
  • Registration / filing number
  • Founding year & status
  • Industry classification (SIC/NAICS)

Additional data available

  • Employee count & revenue estimates
  • Corporate hierarchy & parent company
  • Email & phone (with data license)
  • Website & trade names
  • Bulk export to CSV

Related searches

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