15 CT companies made Fortune 500 list of largest corporations

Fifteen Connecticut-headquartered companies made the 2024 Fortune 500 list of the largest corporations in the U.S., a leading tracker of big business that was released on Tuesday.

Connecticut's representation in this year's rankings, which is based on companies' revenues in their past fiscal years, was one more than the 14 firms from the state that appeared in the 2023 standings.

Bloomfield-based managed health-care and insurance company Cigna again led Connecticut-based companies, ranking No. 16 on the list of 500. Interactive Brokers Group, a Greenwich-headquartered online brokerage, was the state's sole newcomer this year, placing No. 473.

The Connecticut-headquartered companies comprise 3% of this year's Fortune 500. In comparison, Connecticut accounts for about 1% of the U.S. population.

Bentonville, Arkansas-based Walmart again ranked No. 1 overall. Amazon, Apple, UnitedHealth Group, Berkshire Hathaway, CVS Health, Exxon Mobil, Alphabet, McKesson and Cencora, which was formerly known as AmerisourceBergen, rounded out the top 10.

The 2024 Fortune 500 companies cumulatively account for two-thirds of the U.S. gross domestic product, with about $18.8 trillion in revenues, $1.7 trillion in profits and $43 trillion in market value, according to Fortune. Together, they employ about 31 million people worldwide.

No. 16: The Cigna Group, Bloomfield, $195.3 billion

Cigna is perennially the highest-ranked Connecticut-headquartered company in the Fortune 500. Its businesses include health insurance and pharmacy-benefit management. Its annual revenues grew to about $195 billion, up 8% percent from 2022, while it recorded an approximately $5 billion profit.

The company operates with more than 74,000 employees worldwide, including several thousand people based in Connecticut, who serve more than 170 million customers worldwide.

No. 76: Charter Communications, Stamford, $54.6 billion

At the end of last year, Charter served about 32 million customers nationwide.

No. 121: Philip Morris International, Stamford, $35.2 billion

The tobacco producer has been headquartered in Stamford for about a year and a half, following the relocation of its main offices from Manhattan.

As one of the world's largest tobacco companies, PMI ships hundreds of billions of cigarettes outside the U.S. each year. It does not sell any cigarettes in the U.S.

No. 166: Hartford Financial Services Group (The Hartford), Hartford, $24.5 billion

The property-and-casualty insurer and provider of group benefits saw gains in a number of areas in 2023, including an 11% year-over-year increase in "core earnings."

No. 190: Booking Holdings, Norwalk, $21.4 billion

The online travel-services provider has benefited in the past few years from the comeback in tourism and business travel.

No. 191: Synchrony, Stamford, $21.0 billion

The country's largest provider of store-brand and private-label credit cards still saw robust activity in 2023.

No. 263: Stanley Black & Decker, New Britain, $15.8 billion

No. 298: United Rentals, Stamford, $14.3 billion

The world's largest equipment-rental company.

No. 301: Otis Worldwide, Farmington, $14.2 billion

The manufacturer and servicer of elevators, escalators and moving walkways makes its fourth appearance in the Fortune 500, following its 2020 spin-off from United Technologies Corp.

No. 324: Emcor Group, Norwalk, $12.6 billion

No. 325: Amphenol, Wallingford, $12.6 billion

The electronic-components manufacturer is a

longtime supplier to the U.S. military.

No. 340: W.R. Berkley, Greenwich, $12.1 billion

Property-and-casualty insurer.

No. 402: GXO Logistics, Greenwich, $9.8 billion

GXO describes itself as the "largest pure play logistics operator," and it employs with more than 130,000 employees worldwide. Its operations include two facilities in its home state, in Windsor and North Haven.

No. 473: Interactive Brokers Group, Greenwich, $7.8 billion

The ascension into the Fortune 500 of one of the world's largest electronic brokerages reflects a surge in trading since the beginning of the pandemic.

No. 475: XPO, Greenwich, $7.7 billion