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72 leading Insurance companies in Ohio

Tamtam tracks 72 Insurance companies headquartered in Ohio. This list ranks all of them by number of employees on LinkedIn, led by Progressive Insurance, CareSource and Great American Insurance Group. Their median headcount is 244. Half of them were founded in 1969 or later. The most common headquarters are Cincinnati (15), Columbus (14) and Cleveland (6).

๐Ÿ‡บ๐Ÿ‡ธ Ohio72 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Progressive Insuranceprogressive.com

Offering diverse insurance products including auto, home, renters, and commercial policies with a supportive, inclusive workplace culture.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Mayfield Village 37,372 1937
2
CareSourcecaresource.com

A transformative health care provider prioritizing members' well-being, offering coverage to millions with a focus on improving health and making a difference in communities

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Dayton 6,620 n/a
3
Great American Insurance Groupgreatamericaninsurancegroup.com

An established insurance group offering specialized solutions for niche markets with strong financial stability and a history of excellence Company based in Cincinnati, Ohio

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 4,934 n/a
4
The Cincinnati Insurance Companiescinfin.com

Property casualty insurance group offering business, home, auto, life, and disability insurance through independent agencies across 46 states.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Fairfield 4,931 1950
5
Medical Mutualmedmutual.com

Provides diverse health, life, disability, dental, vision, and indemnity plans, including fully insured, self-funded group, Medicare, and individual plans.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 3,216 1934
6
The Western and Southern Life Insurance Companywesternsouthern.com

Providing simple and practical financial solutions for middle-market clients with a focus on long-term relationships, financial stability, and excellence

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 1,616 1888
7
State Auto Insurancestateauto.com

A pioneering and innovative insurance company with a strong commitment to customers, agents, associates, and communities, leveraging technology for success

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 1,599 1921
8
Grange Insurancegrangeinsurance.com

An insurance company based in Columbus, Ohio, empowering customers' best lives with valuable products and hassle-free services through independent agents

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 1,548 1935
9
Hylanthylant.com

A leading full-service insurance brokerage with nationwide presence, offering risk management, employee benefits, wellness strategies, insurance solutions for businesses and individuals

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Toledo 1,329 1935
10
AmTrust North AmericaAmTrustFinancial.com

Provider of workers' compensation and commercial insurance to small and mid-sized businesses in niche markets through independent agents A subsidiary of multinational insurer

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 1,319 1998
11
Root Inc.joinroot.com

A disruptive force in the insurance industry, pioneering FinTech solutions for fair, simple, personalized insurance products and technology platforms

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 1,199 2015
12
American Modern Insurance Grouppolicyholders.amig.com

specialty insurance solutions for classic cars, motorcycles, boats, rental properties, vacant homes, vacation homes, and manufactured homes

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 1,158 1938
13
Encova Insuranceencova.com

Insurance provider offering commercial, auto, and home insurance through 2,000+ independent agencies in 27 states, with over $1 billion in premiums

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 885 n/a
14
Bristol West Insurance Groupbristolwest.com

A private passenger automobile insurance provider offering policies in 43 states, part of one of the largest property and casualty insurer groups in the US

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Independence 814 1973
15
Safelite Solutionssafelitesolutions.com

A leading provider of comprehensive claims management solutions for insurance and fleet businesses, with a focus on customer service and customization

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 814 1947
16
National Interstate Insurance Companynatl.com

A leading provider of insurance solutions for commercial transportation industries nationwide, offering innovative products, superior financial strength, and personalized support

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Richfield 733 n/a
17
Core Specialty Insurance Holdings, Inc.corespecialty.com

Specialty insurer offering property, casualty, and marine insurance for small to mid-sized businesses Emphasizing fast, efficient solutions and dedicated underwriting expertise

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 682 n/a
18
Central Insurancecentral-insurance.com

A property and casualty group with a strong foundation of core values, committed to excellence and integrity, with over $1 billion in assets

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Van Wert 672 1876
19
EyeMed Vision Careeyemed.com

Provider of extensive vision insurance benefits with a large network of providers, focusing on member experience and charitable vision care access.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 619 n/a
20
Oswald Companiesoswaldcompanies.com

Established in 1893, employee-owned insurance brokerage firm partnering with Assurex Global, providing risk management services to clients in the US and worldwide

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 609 1893
21
Paramount Health Careparamounthealthcare.com

A locally owned health insurance company in Ohio, focused on improving health and well-being through compassion, innovation, teamwork, and excellence

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Toledo 540 1988
22
Panamerican Life Copalig.com

An insurance company in Northfield, Ohio provides financial protection to individuals and businesses in the United States

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Northfield 469 1911
23
Sedgwick Claims Management Services, Inc.sedgwickcms.com

A company acquired by Marsh & McLennan in 1998 and later sold to Axis Capital in 2001, involved in the insurance industry

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 374 1969
24
Gamma Iota Sigmagammaiotasigma.org

A 501c3 educational organization promoting careers in insurance, risk management, and actuarial science through programs and partnerships for students

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Powell 363 1966
25
Western Reserve Groupwrg-ins.com

The company operates through independent insurance agents, offering property and casualty insurance products to households, farms, and businesses in Ohio & Indiana

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Wooster 353 1906
26
Motorists Insurance Groupencova.com

A super-regional insurance carrier offering property, casualty, life, and workers' compensation coverage through independent agents across 29 states

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 344 1928
27
Bucklew & Associates, LLC: Allstate Insurancebucklewinsurance.com

A local Allstate Agency in Ohio specializing in Auto, Property, Life, and Business Insurance, dedicated to providing top-class service and informing customers

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Springboro 334 2018
28
Bucklew Insurancebucklewinsurance.com

A specialized insurance agency in Springboro, Ohio offering auto, home, life, retirement, and commercial insurance to protect clients from risks

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Springboro 330 2018
29
Branchourbranch.com

Innovating home and auto insurance to make it affordable, easy to purchase, and more accessible, while focusing on community and company culture

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 326 2017
30
McGohan Brabendermcgohanbrabender.com

An independent health benefits leader offering innovative solutions to control costs and combat chronic disease in the workplace, with national presence and simplified navigation

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Dayton 324 1972
31
Strategic Compstrategiccomp.com

A company offering a new model for workers' comp, empowering businesses with control over costs, risk reduction, and efficient claims management

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 322 n/a
32
Newyork Life Insurance Co

The company offers life insurance and fixed annuities through their agents to help clients secure their financial future

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Seven Hills 313 1845
33
Maticmatic.com

Revolutionizing insurtech since 2014 by seamlessly integrating insurance into the home and auto ownership experience through a digital marketplace

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 308 2014
34
AultCareaultcare.com

This company administers health benefit payment services for employers, offering medical, dental, vision, disability, workers' compensation, and Medicare Advantage plans

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Canton 284 1985
35
The McGowan Companiesmcgowancompanies.com

A leading insurance and financial services organization offering unparalleled products, premiums, and service through a family of specialized insurance operations

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 280 n/a
36
Bold Penguinboldpenguin.com

An integrated digital solution platform simplifying commercial insurance by making the quote and bind process quick, effortless, and profitable for all parties involved

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 244 2016
37
Integrity Insuranceintegrityinsurance.com

A growing property & casualty carrier in Iowa, Minnesota, and Wisconsin, affiliated with Grange Insurance and known for financial strength and customer satisfaction

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 215 1933
38
Vanliner Insurance Companycareers.vanliner.com

Specializing in insurance for the moving and storage industry, providing top-notch products and customer service with an A+ rating and industry recognition

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Richfield 186 n/a
39
HAUSERthehausergroup.com

Full-service risk management, benefits, and insurance solutions provider specializing in private equity transactions, offering expertise in due diligence, transactional support, and brokerage

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 182 1971
40
Marsh McLennan Agency - Midwestmarshmma.com

A leading brokerage firm offering business insurance, employee benefits, retirement planning, and private client insurance solutions with a global reach

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Dayton 181 n/a
41
Roundstoneroundstoneinsurance.com

Innovative employee health benefits company helping small and midsize organizations self-fund health insurance through a group medical captive for cost savings and risk sharing

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Rocky River 174 2003
42
Century Insurance Groupcenturysurety.com

Specialty insurer providing general liability, commercial property, and multi-peril insurance for small and mid-sized businesses through excess and surplus lines

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Westerville 170 1978
43
Selman & Companyselmanco.com

An innovative company providing insurance administrative services to various clients with a diverse workforce dedicated to delivering extraordinary service

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 168 1980
44
CareWorksCompcareworks.com

Specializing in workers' compensation cost management for clients located in state fund states, focusing on reducing expenses and maximizing efficiency

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Dublin 153 1950
45
Hummel Grouphummelgrp.com

Full-line insurance and financial services agency with 8 offices in Ohio and Indiana, helping clients manage risk through insurance and financial strategies

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Berlin 131 1957
46
Dawson Companieslocations.ajg.com

An insurance and risk management firm that partners with clients to analyze risks, create benefit programs, and protect their bottom line

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Richfield 109 1931
47
The Fedeli Groupthefedeligroup.com

Specialized insurance brokerage and consulting firm offering innovative products, high-level risk management, and expert counsel in various coverage areas

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Independence 108 1988
48
HUB Heartlandhoranassoc.com

A leading global insurance broker and financial services firm, providing tailored solutions and advocacy through a vast network of experts

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 105 1948
49
battlefacebattleface.com

A global company offering customizable travel insurance products and services with user-friendly technology, personalized benefits, and responsive customer service

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 64 2017
50
Stapleton Insurance Groupstapletoninsurance.com

A leading insurance group specializing in property/casualty and employee benefit risk management with personalized, tailored services for long-term clients

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Toledo 58 1927
51
Overmyer Hall Associatesoh-ins.com

A client-focused insurance agency offering innovative solutions, quality products, competitive pricing, and professional service, emphasizing long-lasting and honest relationships

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 44 2011
52
Lang Financial Group, Inc.langgroup.com

Providing health insurance, 401(k) retirement planning, disability, long-term care, and life insurance services for companies and their employees in the Midwest

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 41 1974
53
Assurex Globalassurexglobal.com

A global commercial insurance, risk management, and employee benefits brokerage group formed by over 100 respected insurance brokers

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Columbus 40 1954
54
Taylor Oswaldtayloroswald.com

A forward-thinking firm specializing in risk management across property & casualty, employee benefits, personal insurance, retirement plans, and more

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cleveland 28 2011
55
Unity Financial Life Insuranceuflife.com

This company has been providing life insurance and annuities for over 50 years to help families preplan funerals and navigate Medicaid eligibility

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 28 1947
56
Insurance Office of Central Ohioiocofrp.com

Experienced insurance agency providing personalized risk management solutions with national capabilities and a focus on quality advice and customer service

Insurance ๐Ÿ‡บ๐Ÿ‡ธ New Albany 23 1923
57
Benefits Network Insurance Agencybninsurance.com

A leading Ohio-based Health and Life Insurance Agency with over 30 years of experience, serving 2000+ groups and $100M+ in annual premiums

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 23 n/a
58
The Wiseman Agency, Inc.wisemanagency.com

Offering a range of personal and commercial insurance services, as well as financial planning solutions including college planning, annuities, and retirement planning

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Gallipolis 23 1928
59
Global Underwriters Agency, Inc.globalunderwriters.com

A renowned provider of international health, life, and property & casualty insurance products for individuals and groups worldwide for over 50 years

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 22 2006
60
Diversified Brokerage Specialists, Inc.dbs50.com

Specializing in life, disability income, and long term care insurance, we assist agents in developing and selling insurance cases with competitive products and services

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Blue Ash 19 1946
61
Marsh McLennan Agency, formally known as Kinker Eveleigh Insurancemarshmma.com

This company offers a wide range of insurance products and services through a diverse selection of insurance companies, ensuring competitive rates and superior claims service

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 17 1919
62
Buckeye Dealership ConsultingBuckeyeReinsurance.com

A diverse company specializing in insurance products, offering warranties, service contracts, and reinsurance programs for vehicle-related policies, along with retirement planning services

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Canfield 16 2008
63
KAZ Companymedicareplansneo.com

A team of licensed insurance agents educating individuals on Medicare plan options, representing multiple carriers and offering seminars to businesses and groups

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Independence 14 2010
64
NFP Corporate Services (OH), Inc.nfp.com

Leading insurance broker and consultant offering employee benefits, property & casualty, retirement, individual insurance, and wealth management solutions with global capabilities and personalized service

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 11 1988
65
Global Underwritersglobalunderwriters.com

An insurance company based in Cincinnati, Ohio, providing global services to clients worldwide

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Cincinnati 10 n/a
66
Huston Insurance & Financial Serviceshustonfinancial.com

This company specializes in providing personalized insurance, investment, and financial services to help clients achieve financial stability and independence

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Findlay 8 1984
67
Wyatt Insurance Groupwyattinsurancegroup.com

A comprehensive agency offering insurance and financial services

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Springboro 8 1964
68
NeoGlobal Insurancelinktr.ee

Since 1999, we assist clients worldwide in choosing the best international insurance solutions for health and life benefits, serving expatriates, corporations, and professionals

Insurance ๐Ÿ‡บ๐Ÿ‡ธ The Village of Indian Hill 6 1999
69
West Insurance and Financial Serviceswestinsurance.biz

A brokerage firm offering insurance and financial services such as auto, home, life, health, retirement, and investments, with a focus on saving clients money

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Sandusky 3 n/a
70
Associated Consulting Groupassociated-consulting.com

Specializing in reviewing reinsurance administration for life insurance portfolios, with a team of experienced professionals offering contingent fee arrangements for clients' convenience

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Warren 3 1988
71
Nations Choice Trusted Advisorsโ„ขnationschoicetrustedadvisors.com

A holistic risk management approach offering commercial insurance, executive benefits, business planning, and wealth management services through technological innovation and interdisciplinary expertise

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Mason 3 2017
72
Short Agency Insuranceshortagency.com

The company provides insurance products and services through the Independent Agency System, helping clients make informed choices for affordable protection

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Archbold 2 1971

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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