The 81 largest companies in Hartford (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Aetna, a CVS Health Company aetna.com A leading health care benefits company focused on making health care easy, affordable, and personalized Promoting diversity, inclusion, and community well-being	Wellness and Fitness Services	🇺🇸 Hartford	40,685	n/a
2	The Hartford thehartford.com The company goes beyond providing insurance to protect individuals and businesses, making an impact through human achievement and comprehensive protection	Financial Services	🇺🇸 Hartford	21,627	1810
3	Hartford HealthCare hartfordhealthcare.org Providing comprehensive healthcare services including hospitals, behavioral health, physician groups, urgent care, home care, and specialized medical institutes across Connecticut.	Hospitals and Health Care	🇺🇸 Hartford	10,736	n/a
4	Eversource Energy eversource.com A Fortune 500 energy company in New England, prioritizing safety, reliability, environmental leadership, and energy options for millions of customers	Utilities	🇺🇸 Hartford	8,353	n/a
5	State of Connecticut jobapscloud.com Providing diverse employment opportunities across Connecticut in public service, promoting community safety, growth, and work-life balance.	Government Administration	🇺🇸 Hartford	6,414	1788
6	LAZ Parking lazparking.com A parking management service provider with a people-focused philosophy, offering services in various markets across thousands of locations in the US	Real Estate	🇺🇸 Hartford	5,078	1981
7	Hartford Hospital hartfordhospital.org A leading healthcare provider in New England, offering high-quality care across various clinical disciplines including mental health services and long-term care	Hospitals and Health Care	🇺🇸 Hartford	4,932	1854
8	CT Department of Energy and Environmental Protection portal.ct.gov The organization is focused on conserving and protecting natural resources, improving air and water quality, and promoting clean, reliable energy in Connecticut	Government Administration	🇺🇸 Hartford	3,344	n/a
9	Saint Francis Hospital trinityhealthofne.org A major teaching hospital in Connecticut part of a large Catholic healthcare system, offering comprehensive medical services and specialized centers of excellence	Hospitals and Health Care	🇺🇸 Hartford	3,326	1897
10	Trinity College-Hartford trincoll.edu Independent liberal arts college with undergraduate students and faculty, fostering intellectual and creative opportunities, engaging with state capital Hartford.	Higher Education	🇺🇸 Hartford	3,181	1823
11	Connecticut Children's connecticutchildrens.org A leading pediatric academic medical center dedicated to advancing pediatric care through medical innovation, technology, research, and specialized healthcare services	Hospitals and Health Care	🇺🇸 Hartford	2,621	1996
12	HSB - Hartford Steam Boiler munichre.com Engineering and technical risk insurance provider offering equipment breakdown coverage, specialty solutions, inspection services, and consulting to optimize client operational reliability and efficiency.	Insurance	🇺🇸 Hartford	2,599	1866
13	CREC crec.org Organization dedicated to improving public education in the Capitol Region, offering educational programs, professional development, magnet schools, special needs services, and more Visit wwwcrecorg	Education Administration Programs	🇺🇸 Hartford	2,245	n/a
14	Trinity Health Of New England trinityhealthofne.org Integrated health care delivery system in New England with world-class providers and facilities, focusing on better health, care, and lower costs for patients	Hospitals and Health Care	🇺🇸 Hartford	1,808	n/a
15	Hartford Public Schools hartfordschools.org A school district in Hartford, Connecticut, serving 39 schools, focusing on inspiring and preparing students for success in and beyond school	Education Administration Programs	🇺🇸 Hartford	1,584	n/a
16	Broan-NuTone broan-nutone.com Design and distribution of residential ventilation products including range hoods, fans, heaters, and ventilation systems improving indoor air quality.	Manufacturing	🇺🇸 Hartford	1,274	n/a
17	Insurity insurity.com Provider of cloud-based software for insurance industry, trusted by top carriers and MGAs in the US, offering digital platform and analytics solutions for superior customer experience	Software Development	🇺🇸 Hartford	1,233	n/a
18	Connecticut Judicial Branch jud.ct.gov The Connecticut Judicial Branch resolves legal matters fairly, timely, and openly to serve justice and the public's interests	Government Administration	🇺🇸 Hartford	1,166	n/a
19	City of Hartford hartfordct.gov Capital city in Connecticut, major insurance industry hub, historic landmarks, cultural institutions, and ongoing urban development projects downtown.	Government Administration	🇺🇸 Hartford	1,007	n/a
20	Propark Mobility propark.com Specializing in top-notch parking management services, offering premium solutions for efficient and convenient parking facilities	Real Estate	🇺🇸 Hartford	942	n/a
21	Intercontinental Hotel Group Hospitality company based in Hartford, Connecticut, specializing in hotel services	Hospitals and Health Care	🇺🇸 Hartford	778	n/a
22	Nassau Financial Group nfg.com Insurance company offering retirement-focused products including savings protection, guaranteed income, and healthcare cost coverage with dedicated customer service.	Insurance	🇺🇸 Hartford	695	2015
23	Robinson+Cole rc.com A law firm offering a range of legal services to regional, national, and international clients, with a focus on community involvement and client service excellence	Law Practice	🇺🇸 Hartford	681	1845
24	Hartford HealthCare Medical Group hartfordhealthcare.org A large multi-speciality medical group in Connecticut, part of a comprehensive healthcare network offering high-quality care across various specialties and services	Medical Practices	🇺🇸 Hartford	660	n/a
25	Talcott Financial Group talcott.com A life insurance and annuity company with a focus on client needs and innovative solutions, backed by a leading global investment firm	Insurance	🇺🇸 Hartford	506	2018
26	The Village for Families & Children thevillage.org A nonprofit organization providing comprehensive services for children and families, including mental health, substance abuse, and integrated pediatric care, to promote resilience and well-being	Civic and Social Organizations	🇺🇸 Hartford	505	1809
27	Connecticut Department of Public Health ct.gov The Connecticut Department of Public Health works to protect and improve the health and safety of the people by preventing disease and promoting health equity	Government Administration	🇺🇸 Hartford	500	n/a
28	Fuss & O'Neill fando.com A full-service engineering and planning firm with over 95 years of experience, serving public and private sectors across the East Coast	Civil Engineering	🇺🇸 Hartford	484	1924
29	CT State Capital ctstate.edu A community college in Connecticut offering postsecondary education, associate degrees, transfer programs, and workforce development opportunities to central Connecticut	Higher Education	🇺🇸 Hartford	454	n/a
30	Connecticut State Department of Children & Families portal.ct.gov Enacted in 1993, this organization in Connecticut offers community-based programs and services that prioritize the well-being of children and families	Government Administration	🇺🇸 Hartford	454	1969
31	Virtus Investment Partners corporate.virtus.com Provides investment management products and services to individuals and institutions. Operates a multi-manager asset management business with individual affiliated managers and distinct investment styles.	Financial Services	🇺🇸 Hartford	394	2008
32	Navigators, a Brand of The Hartford thehartford.com Market-leading provider of E&S solutions through valued wholesale brokers, offering wide-ranging, flexible coverage, high-risk tolerance, and creative solutions for non-traditional risks	Insurance	🇺🇸 Hartford	393	1974
33	Conning conning.com A leading investment management firm serving the insurance industry, offering investment solutions, risk modeling software, and industry research to institutional investors worldwide	Financial Services	🇺🇸 Hartford	390	1912
34	Propark America propark.com National parking management company providing full service solutions for various industries across 52 cities in 13 states with high-touch customer service and value-added amenities	Real Estate	🇺🇸 Hartford	388	1984
35	United Bank bankatunited.com State chartered bank in Hartford, CT offering commercial, business, and consumer banking services, along with financial advisory services in CT, MA, and RI	Banking	🇺🇸 Hartford	380	1858
36	Shipman & Goodwin LLP shipmangoodwin.com A trusted advisor providing tailored legal solutions to help clients achieve their goals in various industries and navigate complex transactions	Law Practice	🇺🇸 Hartford	362	1919
37	IFG Companies ifgcompanies.com An established insurance group offering property-casualty coverage through two divisions, Bind and Brokerage, with multiple business units and affiliated insurers	Insurance	🇺🇸 Hartford	361	1985
38	Foley foley.io A reliable partner in regulatory compliance and financial services, specializing in DOT regulations, FCRA hiring requirements, and overall safety and financial performance management	Software Development	🇺🇸 Hartford	349	1992
39	Signicast Investment Castings signicast.com Provider of commercial investment castings, delivering quality products with unmatched speed and customer focus, resulting in faster time to market and lower total costs	Manufacturing	🇺🇸 Hartford	349	1959
40	CTtransit cttransit.com A state-owned bus system in Connecticut with a fleet of 520 buses providing transportation to 60+ cities, focused on sustainability and efficiency	Truck Transportation	🇺🇸 Hartford	337	1976
41	The Hartford Courant courant.com The company is the largest daily newspaper in Connecticut, founded in 1764 It covers breaking news, business, politics, sports, lifestyle, and entertainment	Newspaper Publishing	🇺🇸 Hartford	333	1764
42	Connecticut General Assembly Legislative Internship Program ct.gov This company offers a Legislative Internship Program during the Spring semester, providing students with practical experience in the Connecticut General Assembly	Legislative Office	🇺🇸 Hartford	332	1788
43	Hartford Investment Management Co. (HIMCO)thehartford.com It is an insurance asset manager managing $112 billion, providing tailored investment solutions with a focus on client success and integrity.	Investment Management	🇺🇸 Hartford	317	1981
44	Community Renewal Team, Inc.crtct.org An anti-poverty agency providing support and resources for individuals and families in the Connecticut River Valley to become self-sufficient and thrive	Non-profit Organizations	🇺🇸 Hartford	315	1963
45	SCIO Health Analytics®exlservice.com Provider of analytic insights and technology-enabled services to transform healthcare delivery, management, and payment, improving quality, network performance, and reducing costs	IT Services and IT Consulting	🇺🇸 Hartford	315	n/a
46	JUDICIAL BRANCH, STATE OF CONNECTICUT ct.gov The Connecticut Judicial Branch serves justice and the public by resolving matters fairly, timely, efficiently, and openly in Hartford	Administration of Justice	🇺🇸 Hartford	312	1940
47	Connecticut State Department of Education portal.ct.gov Government agency overseeing education in Connecticut, ensuring equal opportunities and excellence in education for all students through funding distribution and technical education programs	Government Administration	🇺🇸 Hartford	273	n/a
48	Ohio County Healthcare ochcares.com Non-profit healthcare system offering comprehensive services in Ohio, Daviess, and Butler counties, with ten locations and a variety of medical specialties available	Hospitals and Health Care	🇺🇸 Hartford	267	1956
49	Max Hospitality maxhospitality.com Max Hospitality is dedicated to providing top-quality cuisine, service, and style through a collection of successful and distinct restaurants and catering services	Restaurants	🇺🇸 Hartford	240	1986
50	Steel Craft steelcraftwi.com A leading metal fabrication company offering expertise in complex fabrication processes, welding, machining, painting, assembly, testing, certification, and logistics management services	Industrial Machinery Manufacturing	🇺🇸 Hartford	236	1976
51	Phoenix Life Insurance Company nfg.com Provider of annuities and life insurance to help families and individuals plan for retirement, offered through agents and professionals nationwide	Financial Services	🇺🇸 Hartford	231	1851
52	Saybrus Partners saybruspartners.com Partnership with financial professionals to address client needs through insurance and annuity solutions for income, estate, and business planning, and protection.	Insurance	🇺🇸 Hartford	231	2009
53	CT Department of Revenue Services ct.gov The Department of Revenue Services aims to ensure fair tax collection, foster taxpayer compliance, improve agency performance, and support the state's fiscal health	Government Administration	🇺🇸 Hartford	229	n/a
54	Connecticut Department of Social Services portal.ct.gov Connecticut's Department of Social Services provides a wide range of health and human services to support residents in all 169 cities and towns	Government Administration	🇺🇸 Hartford	225	1993
55	Delivery Driver Network deliverydrivernetwork.com A premier food delivery platform supporting local restaurants, independent drivers, and business owners with back-end services and technology for efficient operations	Food and Beverage Services	🇺🇸 Hartford	197	2017
56	F.W. Webb Company fwwebb.com A company specializing in providing plumbing, heating, HVAC, and industrial supplies to contractors, tradespeople, and commercial customers	Wholesale Hardware, Plumbing, Heating Equipment	🇺🇸 Hartford	182	n/a
57	State of Connecticut - DAS - Jobs jobapscloud.com The State of Connecticut Executive Branch offers diverse career opportunities with a focus on serving the public and promoting work/life balance	Government Administration	🇺🇸 Hartford	180	n/a
58	Orthopedic Associates of Hartford oahct.com Connecticut's leading orthopedic specialty group offering comprehensive orthopedic care for patients of all ages, specializing in orthopedic surgery	Medical Practices	🇺🇸 Hartford	171	1970
59	Chief of Staff, LLC wonolo.com A leading Hospitality Support Agency specializing in staffing solutions for the food service industry, focusing on honesty, integrity, and exceptional service	Staffing and Recruiting	🇺🇸 Hartford	169	2005
60	Whittlesey wadvising.com A prominent regional accounting firm providing assurance, advisory, tax, and technology services with a diverse team of experienced professionals	Accounting	🇺🇸 Hartford	169	1961
61	Community Partners in Action cpa-ct.org A pioneer in criminal justice reform, supporting individuals inside and outside prison through reentry, youth initiatives, arts programs, and alternatives to incarceration	Non-profit Organizations	🇺🇸 Hartford	165	1875
62	Connecticut Department of Administrative Services portal.ct.gov The company provides various business functions for state government, focusing on quality services, innovation, and rewarding careers for public servants	Government Administration	🇺🇸 Hartford	163	1977
63	RJS Associates rjsassociates.com Privately owned recruiting firm in Connecticut specializing in Engineering, Environmental, Construction, Accounting, Finance, Pharmaceutical, Marketing, Sales, Healthcare, and IT professional placements with top training and client relationships	Staffing and Recruiting	🇺🇸 Hartford	163	1983
64	NAFI CT Inc.nafict.org A multi-service agency offering programming, consultation, and personalized support services to individuals of all ages throughout the state	Mental Health Care	🇺🇸 Hartford	161	n/a
65	Connecticut Technical Education and Career System cttech.org The leading force in Career Technical Education in Connecticut, offering rigorous programs in 11 career clusters to prepare high school and adult students for future careers	Education Administration Programs	🇺🇸 Hartford	157	n/a
66	The Bushnell bushnell.org An arts organization providing diverse performances, arts education programs, and supporting local cultural groups to enrich the community and economy	Performing Arts	🇺🇸 Hartford	146	1920
67	CBIA cbia.com Advocating for businesses in Connecticut, driving change in legislative policy, and promoting collaboration between public and private sectors for economic growth	Non-profit Organizations	🇺🇸 Hartford	146	1815
68	Lifeway Mobility lifewaymobility.com An accessibility solutions company offering stair lifts, ramps, elevators, transfer aids, and bath safety products for individuals and businesses in various states	Medical Equipment Manufacturing	🇺🇸 Hartford	116	2015
69	PeoplesBank Arena peoplesbankarena.com A downtown arena hosting UConn basketball teams, AHL's Hartford Wolf Pack, and various concerts, shows, events, and trade shows	Entertainment Providers	🇺🇸 Hartford	81	1975
70	Bradley, Foster & Sargent, Inc.bfsinvest.com This company, established in 1994, is an investment advisor providing tailored investment management for individuals and institutions, prioritizing client satisfaction	Investment Management	🇺🇸 Hartford	70	1994
71	ReFrame Solutions reframesolutions.com Cloud-native technology platform focused on digital transformation, customer experience, and operational efficiency for the public sector through innovative, customer-centric solutions and services	Software Development	🇺🇸 Hartford	65	2019
72	Northfield Excess & Surplus Lines northfieldins.com Specialty insurer with 40+ years of experience in non-admitted marketplace, offering hard-to-place risk coverages through national network of wholesale agents and brokers	Insurance	🇺🇸 Hartford	46	n/a
73	Dooling Machine Products doolingmachine.com Manufacturing and providing machinery products, located in Hartford, Illinois, United States Specializing in the production of various machine components	Machinery Manufacturing	🇺🇸 Hartford	42	n/a
74	The Travelers Companies, Inc travelers.com A Georgia-based insurance company providing insurance services from their headquarters in Augusta, United States	Insurance	🇺🇸 Hartford	19	1925
75	RidgeWorth Investments Virtus.com Provider of diverse investment capabilities through eight boutique affiliates, serving both institutional and individual clients through financial advisors and consultants	Investment Management	🇺🇸 Hartford	16	2008
76	SKY Investment Group LLC skyig.com A financial firm specializing in managing investment portfolios for individuals, families, businesses, and charitable organizations with a focus on long-term capital preservation	Investment Management	🇺🇸 Hartford	15	2005
77	Global Finesse globalfinesse.com Specialist consultancy providing investment and risk management systems for global banks, insurance companies, and asset management firms in the financial services industry	Financial Services	🇺🇸 Hartford	9	2004
78	Grand Avenue Dental Care drpeterwilk.com A dental care provider focused on personalized, positive, and health-focused treatment, creating a calm and pleasant environment, and giving back to the community	Wellness and Fitness Services	🇺🇸 Hartford	7	1976
79	Truth Trucking & Expedited Services A company providing impeccable logistic services with 24 ft box trucks, ensuring on-time deliveries with honesty, integrity, and professionalism for various industries	Truck Transportation	🇺🇸 Hartford	5	2017
80	BurkeCapital This company makes investments in high-growth, innovative startups and later-stage companies to support their development and success	Venture Capital and Private Equity Principals	🇺🇸 Hartford	3	2017
81	Expresslancer \| Digital Business Solutions expresslancer.com A company offering digital business solutions to create value, transform industries, and improve productivity through efficient workflows and effective business models	Business Consulting and Services	🇺🇸 Hartford	2	2012

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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.

The same list elsewhere in United States

The largest companies in the United States 91,669
The largest companies in California 12,813
The largest companies in New York State 10,485
The largest companies in Texas 8,086
The largest companies in Florida 4,945
The largest companies in Illinois 4,175
The largest companies in Pennsylvania 3,110
The largest companies in Massachusetts 3,093
The largest companies in Georgia 2,632
The largest companies in Ohio 2,618
The largest companies in New Jersey 2,569
The largest companies in Virginia 2,503
The largest companies in Michigan 2,346
The largest companies in North Carolina 2,174
The largest companies in Alabama 1,806
The largest companies in Washington State 1,785
The largest companies in Colorado 1,774
The largest companies in Minnesota 1,700
The largest companies in Maryland 1,527
The largest companies in Wisconsin 1,482
The largest companies in New York 6,920
The largest companies in San Francisco 2,030
The largest companies in Houston 1,791
The largest companies in Chicago 1,668