These Are The 100 Largest Companies In Connecticut

Chris Kolmar
by Chris Kolmar
Biggest Companies, Rankings - 6 months ago
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If you live in Connecticut and you’re looking for a job, you have come to the right place.

Because, sure, you can google things like ‘biggest companies in Connecticut’ and get a fairly long list of companies with a lot of employees, or perhaps that have the biggest names — but here, we bring you the companies with the most current employees that are actually headquarted in Connecticut.

Below, we’ll give you a complete list of Connecticut’s 100 largest companies, but first, here’s a look at the top 10:

  1. Subway
  2. United Technologies
  3. Starwood Hotels & Resorts Worldwide
  4. Spectrum
  5. XPO Logistics
  6. Otis Elevator
  7. Amphenol
  8. Stanley Black & Decker
  9. Aetna
  10. Carrier

Subway comes in at the top, with more current employees than any other company in the . We’ll get to specifics in a moment; first, here’s a look at our methodology.

How we identified the biggest companies in Connecticut

Here at Zippia we have developed a database of over 250,000 companies that spans the entire country.

For this report, we looked at the companies headquartered in Connecticut with at least 100 employees. That left us with 620 companies.

We then ranked each company from most to least current employees to determine the biggest companies in Connecticut.

As it turns out, Subway looks to the be the biggest company in Connecticut clocking in with 400,000 employees.

Now, check out how the 100 biggest companies in Connecticut ranked.

If you’re interested, you can read more about the Connecticut job scene here:

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Detailed List Of The 100 Biggest Companies In Connecticut

Rank Company City Employees
1 Subway Milford 400,000
2 United Technologies Farmington 201,600
3 Starwood Hotels & Resorts Worldwide Stamford 188,000
4 Spectrum Stamford 91,500
5 XPO Logistics Greenwich 90,000
6 Otis Elevator Farmington 63,000
7 Amphenol Wallingford 62,000
8 Stanley Black & Decker New Britain 54,023
9 Aetna Hartford 49,500
10 Carrier Farmington 44,545
11 Cigna Bloomfield 41,000
12 Xerox Norwalk 36,900
13 Nestle Waters North America Stamford 31,740
14 EMCOR Group Norwalk 31,000
15 Praxair Danbury 26,487
16 Harman International Industries Stamford 26,000
17 Frontier Communications Stamford 23,924
18 Booking Holdings Norwalk 22,500
19 Fox Den LTD Old Greenwich 21,995
20 Hamilton Sundstrand Windsor Locks 17,158
21 The Hartford Hartford 16,900
22 Daymon Stamford 16,000
23 Hubbell Shelton 15,400
24 Synchrony Financial Stamford 15,000
25 Coventry Health Care Hartford 14,400
26 Pitney Bowes Stamford 14,200
27 IMS Health Inc 14,001
28 IDG Framingham 13,450
29 Gartner Stamford 13,000
30 TUV Rheinland Of North America, Inc. Newtown 13,000
31 United Rentals Stamford 12,000
32 Terex Westport 11,300
33 Crane Co. Stamford 11,000
34 Bristol Manufacturing Company Watertown 10,001
35 Silgan Holdings Stamford 9,215
36 Pratt & Whitney East Hartford 9,000
37 FactSet Norwalk 8,885
38 Sikorsky Aircraft Corporation Stratford 8,735
39 UConn Mansfield 8,040
40 SS&C Technologies Manchester 8,001
41 Genesee & Wyoming Darien 8,000
42 W. R. Berkley Greenwich 7,683
43 Providence Service Stamford 7,620
44 Woods Electrical Co., LLC Farmington 7,500
45 Hartford Hospital Hartford 7,500
46 Cenveo Stamford 7,300
47 Yale New Haven Hospital New Haven 7,170
48 LAZ Parking Hartford 7,000
49 AVANGRID New Haven 6,800
50 Hexcel Stamford 6,155
51 NovitexEnterprise Stamford 6,082
52 Kaman Bloomfield 5,265
53 Ethan Allen Danbury 5,200
54 Olympus Partners Stamford 5,153
55 Hartford HealthCare Hartford 5,100
56 Barnes Group Bristol 5,036
57 People’s United Bank Bridgeport 4,961
58 TRC Companies Windsor 4,800
59 CarringtonRES Greenwich 4,600
60 Timex Group Middlebury 4,318
61 Global Imaging Systems Norwalk 4,230
62 New Castle Shelton 4,200
63 Wilton Surgery Center Wilton 3,963
64 Doncasters Farmington 3,950
65 Webloyalty Stamford 3,900
66 Legrand West Hartford 3,838
67 MRRC Hold Co. Greenwich 3,800
68 Saint Francis Hospital & Medical Center Hartford 3,740
69 National Home Health Care Corp. Cromwell 3,680
70 Connecticut Children’s Medical Center Hartford 3,597
71 Affinion Group Stamford 3,552
72 Acuren Danbury 3,500
73 The Lane Construction Cheshire 3,500
74 RBC Bearings Oxford 3,401
75 Unimin New Canaan 3,400
76 HEI Hotels & Resorts Norwalk 3,250
77 Bob’s Discount Furniture Manchester 3,225
78 Cartus Danbury 3,200
79 William Raveis Real Estate Shelton 3,200
80 Western Connecticut Health Network Danbury 3,176
81 LJ/HAH Holdings Corporation Greenwich 3,168
82 Bridgeport Hospital Bridgeport 3,152
83 Alexion Pharmaceuticals New Haven 3,121
84 Rockwood Service Corporation Greenwich 3,009
85 Ge Supply México, S. de R.L. Shelton 3,000
86 Danbury Hospital Danbury 3,000
87 Connecticut Valley Hospital Middletown 3,000
88 Prudential Retirement Insurance And Annuity Co On Behalf Of Its Separate Account Ssa-4642 Fire Hartford 3,000
89 United Technologies/Carrier Farmington 3,000
90 Save the Children US Fairfield 3,000
91 CROWN Risdon USA Inc Watertown 3,000
92 Institute Of Living-Treatment Hartford 3,000
93 Lawrence + Memorial New London 3,000
94 Townsquare Media Greenwich 2,950
95 Eastern Connecticut Health Network Manchester 2,846
96 Sennheiser Old Lyme 2,750
97 Compass Group Diversified Holdings LLC Westport 2,728
98 Bob’s Stores Meriden 2,700
99 Lydall Manchester 2,700
100 Duracell Bethel 2,700

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