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Cigna is headquartered at 900 Cottage Grove Road in Bloomfield. The company ranked No. 12 on the 2022 Fortune 500 list.

The headquarters building of Xerox at 201 Merritt 7 in Norwalk, Conn. The company ranked No. 471 on the 2022 Fortune 500 list.

Frontier Communications is headquartered at 401 Merritt 7 in Norwalk, Conn. The company ranked No. 499 on the 2022 Fortune 500.

Charter Communications is headquartered at 400 Washington Blvd., in Stamford, Conn. The company ranked No. 69 on the 2022 Fortune 500 list.

The Hartford’s headquarters are 1 Hartford Plaza in Hartford, at center, as seen from Bushnell Park. The company ranked No. 160 on the 2022 Fortune 500.

Stanley Black & Decker, which is headquartered in New Britain, operates this manufactory facility in downtown Hartford. The company ranked No. 212 on the 2022 Fortune 500 list.

Margaret Keane, executive chairwoman of Synchrony, speaks during an event to mark the opening of a skills academy at the company’s headquarters at 777 Long Ridge Road in Stamford, Conn., on April 25, 2022. The company ranked No. 236 on the 2022 Fortune 500 list.

Judy Marks is the CEO, president and chairwoman of Otis Worldwide. The Farmington-based manufacturer and servicer of elevators, escalators and moving walkways ranked No. 254 on the 2022 Fortune 500.

Greenwich, Conn.-based XPO Logistics ranked No. 291 on the 2022 Fortune 500.

The RiverPark office building at 800 Connecticut Ave., in Norwalk, Conn., where Booking Holdings has its headquarters. The company ranked No. 340 on the 2022 Fortune 500 list.

Amphenol is headquartered at 358 Hall Ave., in Wallingford, Conn. The company ranked No. 341 on the 2022 Fortune 500.

Emcor Group is headquartered at 301 Merritt 7 in Norwalk, Conn. The company ranked No. 357 on the 2022 Fortune 500.

United Rentals runs this depot at 224 Selleck St., in Stamford, Conn., a few blocks from its headquarters at First Stamford Place. The company ranked No. 363 on the 2022 Fortune 500 list.

W.R. Berkley is headquartered at 475 Steamboat Road in Greenwich, Conn. The company ranked No. 371 on the 2022 Fortune 500 list.

Greenwich-headquartered GXO Logistics ranked No. 430 on the 2022 Fortune 500. It was created through its spinoff in 2021 from XPO Logistics.

Fifteen Connecticut-headquartered companies ranked on the 2022 Fortune 500 list of the largest corporations in the U.S., that was released Monday — one more than the state’s number of entries last year.

Companies were ranked by their revenues in the 2021 fiscal year — with a revenue threshold of $6.4 billion for this year’s list, up 19 percent from last year. Bloomfield-based health insurer Cigna again ranked highest among Connecticut companies, placing this year at No. 12, with 2021 revenues of about $174 billion.

Greenwich-headquartered warehouse operator GXO Logistics, created last year through its spin-off from Greenwich-based XPO Logistics, was the sole Connecticut-based newcomer on this year’s list. It debuted at No. 430.

In total, this year’s Fortune 500 companies represent two-thirds of the U.S. gross domestic product, with about $16 trillion in revenues, $1.84 trillion in profits and about $37 trillion in market value. Cumulatively, those 500 firms employ 29.7 million people worldwide. 

Here’s a rundown of the Connecticut-based companies on the 2022 Fortune 500:

Cigna perennially ranks highest among Connecticut-headquartered companies on the Fortune 500. As one of the world’s largest health insurance companies, it counted about 186 million customer relationships at the end of 2021 — up 7 percent year over year. At the same time, it ranks as one of the largest corporate employers, with more than 74,000 employees worldwide.

“For 150 years, Cigna and thousands of our employees along with their families have been proud to call Connecticut home,” Cigna said in a statement. “We remain committed to growing our business and delivering long-term value for our customers, clients and communities — both here and around the world — and we are honored to see that commitment recognized with our placement among the Fortune 500.”

Highlighting its growth in the past few years, the provider of Spectrum-branded cable, phone and internet services opened last year a two-building headquarters covering more than 900,000 square feet. The new hub at 400 Washington Blvd., next to the downtown Stamford Metro-North railroad station, replaced Charter’s former headquarters a few blocks away at 400 Atlantic St.

In 2021, the property-and-casualty insurer fended off several acquisition attempts by another insurer, Chubb.

Unrelated to that saga, The Hartford’s Connecticut headcount has dropped 10 percent in the past year — a trend that reflects the rise of remote working.

1. Walmart  (10th straight year at No. 1, generating $5.1 trillion in cumulative revenues during that time)

Stanley Black & Decker’s deal pipeline was active in 2021, as it announced last December that it would sell for $3.2 billion most of its security business to Sweden’s Securitas AB. The activity has extended into 2022, with the company announcing last month an agreement to sell its automatic-door division for $900 million to Ireland-based Allegion.

In 2021, the country’s largest provider of store-brand and private-label credit cards made its first chief executive officer change since its 2014 spin-off from GE. Margaret Keane retired as CEO and became executive chairwoman, while President Brian Doubles was promoted to CEO.

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

Chief Executive Officer Judy Marks is one of an all-time high of 44 women to currently serve as CEO of a Fortune 500 company and the only woman to lead one of the Connecticut-headquartered companies on this year’s list.

The spin-off last year of warehouse operator GXO Logistics highlighted XPO’s ongoing transformation. The restructuring has continued this year, with the company selling its intermodal freight business for $710 million and announcing a plan to spin off its truck-brokerage business.

Among Connecticut-based companies, the travel-services provider made the biggest year-over-year jump on the Fortune 500, leaping 84 positions from its 2021 ranking. It was buoyed by a revival in tourism and business travel in 2021 after being hit hard in 2020 during the first year of the COVID-10 pandemic.

The electronics manufacturer’s activity in 2021 was highlighted by its $1.7 billion acquisition of MTS Systems, a specialist in test systems, motion simulators and precision sensors, and its $715 million acquisition of Halo Technology, a provider of fiber optic components for the communications infrastructure markets.

Emcor’s gains in 2021 included growing revenues for U.S. services for electrical construction and facilities, mechanical construction and facilities, building services and industrial services.

At the beginning of this year, the world’s largest equipment-rental company recommitted to Stamford by signing a new headquarters lease. United will lease more than 51,000 square feet at First Stamford Place through 2030.

Property-and-casualty insurer W.R. Berkley’s revenue growth last year included an uptick in premiums written and higher gains on investments.

Berkley recently agreed to sell for about $960 million the London skyscraper that houses its European headquarters, but the company has not signaled that it will leave the building.

Spun off last year from XPO Logistics, GXO is now an independent company that ranks as one of the world’s warehouse operators. It employs about 120,000 people across more than 900 locations worldwide.

Among the workplace-technology provider’s transactions in 2021, it acquired augmented reality company CareAR. It then announced a combination of CareAR with its existing DocuShare and XMPie businesses to create a system supporting field technicians.

Frontier fell 97 positions from its 2021 Fortune 500 ranking, the largest year-over-year drop for a Connecticut-based company that did not spin off a company. After emerging from bankruptcy last year, the company is focusing on high-speed internet service delivered by fiber optic cable.

Paul Schott is a business reporter at Hearst Connecticut Media, writing about the issues affecting small- and medium-sized businesses and large corporations based in southwestern Connecticut, with a focus on Stamford and Greenwich. He previously covered education for Greenwich Time and general assignments for the Westport News. Paul welcomes readers' ideas and suggestions and strives to cultivate a robust dialogue with Hearst Connecticut Media's audience.