Businesses in Hartford: 28,131 workplaces, the city's largest employers and seven public headquarters

This page is for anyone who needs to find or size businesses in the Hartford area: companies looking for local suppliers, job seekers, researchers and B2B sellers planning Connecticut accounts. It covers the Census count of businesses, the city's principal employers, the public companies headquartered in Greater Hartford, the industries that define it, how to check a Connecticut business, and a worked example for selling to the region's precision manufacturers.

How many businesses are in Hartford

The Census Bureau's County Business Patterns (CBP) counts locations with paid employees. For the Hartford-West Hartford-East Hartford, CT Metro Area (CBSA 25540) in 2023:

Connecticut replaced its counties with planning regions as its county-level units in federal statistics, so the metro splits into two:

In bands: 23,279 establishments have 1 to 19 employees, 4,000 have 20 to 99 and 852 have 100 or more. Only 49.7% have fewer than five employees, compared with 62.0% in the Tampa metro, which is what pushes the average up. CBP counts locations rather than companies, leaves out self-employed people and most government workers, and measures employment in the pay period including March 12, 2023.

Hartford's largest employers

The City of Hartford's Annual Comprehensive Financial Report for the fiscal year ended June 30, 2025 lists its principal employers from Connecticut Department of Labor data. The state publishes them in size ranges, not exact counts:

The schedule also lists a restaurant operator in the 1,000 to 4,999 range. These are counts inside the city, which is why suburban giants such as Cigna in Bloomfield and Otis in Farmington don't appear. The MetroHartford Alliance, the regional economic development organization, lists the region's larger employers by name without counts, adding companies such as Raytheon Technologies in Farmington, Henkel's US headquarters in Rocky Hill, Voya Financial in Windsor and Legrand in West Hartford.

Public companies headquartered in Greater Hartford

The SEC-registered listed companies whose latest 10-K gives a head office in the metro, ranked by revenue:

A blank employee cell means we didn't take a headcount from that filing. Together they reported $342.32 billion. Headcounts are company-wide; Otis counts about 45,000 field professionals in its 72,000. Bob's Discount Furniture listed in 2026 and its first 10-K covers the year to December 28, 2025.

Address-to-county files built on Connecticut's old counties don't match the new planning regions, so we built this list from each company's SEC filings directly.

What Hartford businesses do

Average pay is our calculation from CBP payroll. Finance and insurance has 6.3% of establishments but 11.6% of jobs, and insurance carriers alone (NAICS 5241) employ 46,132 at 196 sites, 9 of them with 1,000 or more people. Manufacturing is the other high-wage employer: 65,090 jobs at 1,307 sites, led by aerospace products and parts (NAICS 3364), with 23,053 employees at 63 establishments and average pay of $123,551. The Census Bureau flags the finance, carrier and aerospace employment figures as moderately affected by the noise it adds for confidentiality, so treat them as close estimates. For the insurance market in detail, see insurance companies in Hartford.

How to check a Connecticut business

For the statewide picture, including the Fairfield County headquarters, see companies in Connecticut.

Prospecting Hartford's precision manufacturers

Behind the aerospace primes are hundreds of machine shops and fabricators that make parts for them. They're owner-run or led by a small management team, they sell into defense programs with strict cybersecurity and quality requirements, and they're concentrated enough to work one by one.

Illustrative example. The company, rates and results are fictional, to show the method.

Farmington Valley Cyber (fvcyber.example) gets small defense suppliers ready for the Defense Department's cybersecurity certification (CMMC) and wants Greater Hartford metal fabricators and machine shops with 20 to 249 employees.

• Fabricated metal product establishments (NAICS 332) with 20 to 49 employees: 75; 50 to 99: 36; 100 to 249: 21. That's 132 shops.
• It assumes 40% supply defense programs directly or through a prime: about 53 prospects.
• Five engagements a year at $45,000 for assessment and remediation would be $225,000.

It targets the owner or general manager, with the quality manager in copy because they already run the shop's audits, and times outreach to contract renewals, when primes ask suppliers to confirm their certification status. Finding which of 132 shops sell into defense, and who signs off, is the research Bebop does for each account.

Subject: [Company]'s CMMC status before your next renewal

Hi [first name],

Primes across the Farmington Valley are starting to ask suppliers for their cybersecurity certification status before they renew purchase agreements.

We get 30 to 150 person shops ready for the assessment, using the systems you already run, and we sit in on the audit with you. Could I send the one-page readiness checklist we start with?

[Your name], Farmington Valley Cyber

Next step: build a target list from this market with how to build a prospect list.