The 100 Largest Companies In Connecticut For 2019

Chris Kolmar
by Chris Kolmar
Biggest Companies, Rankings - 1 week 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 headquartered 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. United Technologies
  2. XPO Logistics
  3. Otis Elevator
  4. Amphenol
  5. Subway
  6. Stanley Black & Decker
  7. Aetna
  8. Carrier
  9. Cigna
  10. Pratt & Whitney

United Technologies 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 631 companies.

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

As it turns out, United Technologies looks to the be the biggest company in Connecticut clocking in with 201,600 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:

Detailed List Of The 100 Biggest Companies In Connecticut

Rank Company City Employees
1 United Technologies Farmington 201,600
2 XPO Logistics Greenwich 90,000
3 Otis Elevator Farmington 63,000
4 Amphenol Wallingford 62,000
5 Subway Milford 58,350
6 Stanley Black & Decker New Britain 54,023
7 Aetna Hartford 49,500
8 Carrier Farmington 44,545
9 Cigna Bloomfield 41,000
10 Pratt & Whitney East Hartford 38,737
11 Xerox Norwalk 36,900
12 EMCOR Group Norwalk 31,000
13 Praxair Danbury 26,487
14 Harman International Industries Stamford 26,000
15 Frontier Communications Norwalk 23,924
16 Booking Holdings Norwalk 22,500
17 Fox Den Old Greenwich 21,995
18 Hubbell Incorporated Shelton 18,000
19 Hamilton Sundstrand Windsor Locks 17,158
20 The Hartford Hartford 16,900
21 Daymon Stamford 16,000
22 Synchrony Financial Stamford 15,000
23 Pitney Bowes Stamford 14,200
24 TUV Rheinland-North America Newtown 13,000
25 Gartner Stamford 13,000
26 United Rentals Stamford 12,500
27 Yale New Haven Ho New Haven 12,178
28 Terex Westport 11,300
29 Crane Co. Stamford 11,000
30 Bristol Inc Watertown 10,001
31 Silgan Holdings Stamford 9,215
32 FactSet Norwalk 8,885
33 University of Connecticut Storrs 8,780
34 Sikorsky Aircraft Corporation Stratford 8,735
35 SS&C Technologies Manchester 8,001
36 Genesee & Wyoming Darien 8,000
37 Eversource Energy Hartford 7,762
38 Yale New Haven Hospital New Haven 7,710
39 W. R. Berkley Greenwich 7,683
40 Providence Service Stamford 7,620
41 Club Demonstration Services Inc Stamford 7,606
42 Woods Electrical Co Inc Farmington 7,500
43 Hartford Hospital Hartford 7,500
44 Cenveo Stamford 7,300
45 Propria Madison 7,000
46 LAZ Parking Hartford 7,000
47 AVANGRID New Haven 6,800
48 CAPRICORN HLDGS Greenwich 6,614
49 AGC Inc Meriden 6,269
50 Hexcel Stamford 6,155
51 Novitex Enterprise Solutions Inc 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 Yale University New Haven 4,870
59 TRC Companies Windsor 4,800
60 Carrington Holding Greenwich 4,600
61 Timex Group Middlebury 4,318
62 Affinion Group Holdings LLC Stamford 4,300
63 Tronox Stamford 4,300
64 Global Imaging Systems Inc Norwalk 4,230
65 New Castle Hotels & Resorts Shelton 4,200
66 MacDermid Enthone Electronics Solutions Waterbury 4,000
67 Wilton Surgery Center Wilton 3,963
68 Doncasters Farmington 3,950
69 Webloyalty Stamford 3,900
70 Option Care Shelton 3,840
71 Legrand West Hartford 3,838
72 MRRC Hold Co Greenwich 3,800
73 Saint Francis Hospital & Medical Center Hartford 3,740
74 National Home Health Care Corp Cromwell 3,680
75 Connecticut Children’s Medical Center Hartford 3,597
76 Acuren Danbury 3,500
77 Lane Construction Cheshire 3,500
78 RBC Bearings Oxford 3,401
79 Unimin New Canaan 3,400
80 Affinion Group Stamford 3,370
81 Webster Bank Waterbury 3,349
82 HEI Hotels & Resorts Norwalk 3,250
83 North Sails Milford 3,230
84 Bob’s Discount Furniture Manchester 3,225
85 Cartus Danbury 3,200
86 Western Connecticut Health Network Danbury 3,176
87 LJ/HAH Holdings Corporation Greenwich 3,168
88 Yale In-Vitro Fertilization At Bridgeport Hospital Bridgeport 3,152
89 Rockwood Service Corporation Greenwich 3,009
90 CONNECTICUT VALLEY HOSPITAL Middletown 3,000
91 Save the Children US Fairfield 3,000
92 Hartford Public Schools Hartford 3,000
93 Oce Imagistics Inc Trumbull 3,000
94 Prudential Retirement Hartford 3,000
95 Danbury Hospital Danbury 3,000
96 CUNO Inc Meriden 3,000
97 Crown Risdon USA Inc Watertown 3,000
98 Townsquare Media Greenwich 2,950
99 Eastern Connecticut Health Network Manchester 2,846
100 Sennheiser Old Lyme 2,750

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