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HARTFORDBUSINESS.COM | OCTOBER 19, 2026 27 The Lists Largest manufacturers in Connecticut (1) Ranked by number of Conn.-based employees Manufacturer Employees statewide/ total Description Ownership type/ ticker symbol/ year founded Top local executive(s) 1 General Dynamics Electric Boat (2) 75 Eastern Point Road, Groton 06340 860-433-3000 • gdeb.com 17,000 28,000 Design, build, maintenance and enhancement of U.S. nuclear submarines Public NYSE:GD 1899 Mark Rayha President 2 RTX (3) 1 Farm Springs Road, Farmington 06032 860-728-7000 • rtx.com 16,000 180,000 Aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide Public NYSE:RTX 1922 Christopher T. Calio Chairman & CEO 3 Sikorsky, a Lockheed Martin Co. 6900 Main St., Stratford 06614 203-386-4000 • lockheedmartin.com 7,158 (4) 123,000 (5) Helicopter design, manufacture and service Public NYSE:LMT 1923 Richard Benton Vice president & general manager 4 RBC Bearings Inc. One Tribology Center, Oxford 06478 203-267-7001 • rbcbearings.com 3,000 (6) 5,816 Highly engineered precision bearings and products, which are integral to the manufacture and operation of most machines, aircraft, and mechanical systems Public NYSE:RBC 1919 Michael J. Hartnett Chairman, president & CEO 5 Medtronic Inc. 60 Middletown Ave., North Haven 06473 203-492-5000 • medtronic.com 3,000 (7) 95,000 Healthcare technology Public NYSE:MDT 1949 Geoffrey S. Martha CEO 6 ASML Holding N.V. 77 Danbury Road, Wilton 06897 203-761-4000 • asml.com 1,600 (8) 43,938 Research and manufacture of the hardware, software and services to mass-produce the patterns of integrated circuits for chipmakers Public NASDAQ:ASML 1984 Christophe Fouquet President & CEO Louis Lu Vice president & head of Wilton innovation site 7 Lee Co. 2 Pettipaug Road, Westbrook 06498 860-399-6281 • theleeco.com 1,200 N/A Fluid control Private 1948 Marietta S. Lee President & CEO 8 Otis Elevator Co. (9) 1 Carrier Place, Farmington 06032 860-676-6000 • otis.com 1,000 72,000 Elevator and escalator manufacturing, installation, service and modernization Public NYSE:OTIS 1853 Judy F. Marks (10) Chair, CEO & president 9 Henkel Corp. North America (11) One Henkel Way, Rocky Hill 06067 860-571-5100 • henkel-northamerica.com 1,000 47,000 Manufacturer of consumer goods and industrial adhesives, sealants and surface treatments Public DAX:HNK.DE 1876 Rajat Agarwal President, Henkel North America 10 TRUMPF Inc. 3 Leibinger Way, Farmington 06032 860-255-6000 • trumpf.com 893 1,654 Manufacturer with integrated ecosystem of machine tools, laser technology and advanced solutions for metal processing Private 1969 Lutz Labisch President & CEO 11 Legrand 60 Woodlawn St., West Hartford 06110 877-295-3472 • legrand.us 782 6,043 Global specialist in electrical and digital building infrastructures Public LR.PA; OTC:LGRDY (12) 1900 Brian DiBella President & CEO, Legrand North & Central America 12 Whelen Engineering Winthrop Road, Chester 06412 860-526-9504 • whelen.com 700 2,000 Design & manufacture of high-performance warning, lighting and communication systems for first responders and professionals worldwide Private 1952 Geoff Marsh President & CEO George Whelen V Executive vice president 13 Belimo Aircontrols Inc. U.S. (13) 33 Turner Road, Danbury 06810 203-791-9915 • belimo.com 650 2,800 Manufacturer of HVAC components Public BEAN (14) 1975 Sarah Bencic Head of Americas 14 CooperSurgical Inc. (15) 75 Corporate Drive, Trumbull 06611 203-601-5200 • coopersurgical.com 609 (16) 3,328 (16) Manufacturer of products for fertility and women's health Public NASDAQ:COO (17) 1990 Holly Sheffield President 15 Stanley Black & Decker Inc. 1000 Stanley Drive, New Britain 06053 860-225-5111 • stanleyblackanddecker.com 600 43,500 Tools, innovative solutions and engineered fastening systems Public NYSE:SWK 1843 Christopher Nelson President & CEO 16 Becton, Dickinson and Co. 14 Grace Way, Canaan 06018 860-824-5487 • bd.com 560 60,000 Syringe manufacturing Public NYSE:BDX 1897 Thomas E. Polen Jr. President & CEO 17 Ensign-Bickford Aerospace & Defense Co. 100 Grist Mill Road, Simsbury 06070 860-843-2000 • ebad.com 531 864 Polypropylene yarns, blast-initiation systems and products for aerospace and defense industries Private 1836 Jennifer Lewis President 18 Allied Printing Services Inc. 1 Allied Way, Manchester 06042 860-643-1101 • alliedprinting.com 520 520 Sheetfed & web offset printing, digital printing Private 1949 John Sommers President & CEO 19 ebm-papst Inc. 100 Hyde Road, Farmington 06032 860-674-1515 • ebmpapst.us 473 1,073 Designer & manufacturer of high-efficiency motors Private 1981 Franz Cerwinka CEO, Air Technology Americas 20 Colt's Manufacturing Co. LLC (18) 545 New Park Ave., West Hartford 06110 860-236-6311 • colt.com 467 467 Icon of American industrial history, renowned for shaping the development of modern firearms and engineering, military innovation and popular culture Private 1836 Jillair Kubish President & CEO 21 GKN Aerospace (19) 1000 Corporate Row, Cromwell 06416 860-613-0236 • gknaerospace.com 450 16,000 (20) Advanced aircraft engine components and structural composite parts including 3D printing Public LSE:MRO 1759 Joakim Andersson President of Engines Sébastien Aknouche Senior VP, Material Solutions Source: Each manufacturer via survey as of Q3 2026. Note: Denmark-based LEGO has consolidated North American headquarters in Boston, and the Enfield facility is closed. New Britain's Guida-Seibert Dairy Co. closed in July 2026, eliminating 205 jobs. Durham's Hobson & Motzer Inc. is now part of Calif.-based Vantedge Medical; unable to confirm local employee count by press time. Bristol's Barnes Aerospace was acquired by Apollo Global Management. In October 2025, the company separated into Barnes Aerospace and The Industrial Solutions Group. Barnes Aerospace last reported 300 employees in Greater Hartford on HBJ's 2024 survey. Bloomfield's Kaman Corp. employed just below 1,000 employees in May 2024, according to a July 2024 HBJ story, with further cuts expected as part of a restructuring at that time. Since being acquired by Arcline Investment Management, the company has been divided into Kamatics, Kaman Air Vehicles and KMM Precision Measuring; unable to confirm data for the new entities by press time. Middletown's Jarvis Products Corp. no longer discloses employee counts; the company reported 285 local employees on HBJ's 2023 survey. N/A = Not available. (1) Hartford Business Journal is in the process of expanding all of its lists to include companies statewide. Please reach out to research@nebusinessmedia.com to be included on the list. (2) Expects to open new campus at the old Crystal Mall location in Waterford by the end of 2026. (3) Formerly Raytheon Technologies; includes Raytheon, Collins Aerospace and Pratt & Whitney. (4) Employee count as of Q1 2026 and according to lockheedmartin.com/content/dam/lockheed- martin/eo/photo/economic-workforce/states/infographics/connecticut/lockheed-martin-economic- impact-connecticut.pdf. (5) For Lockheed Martin Corp. (6) According to the Connecticut Department of Labor market research data as of July 24, 2026. (7) According to Industry Select. (8) According to the Connecticut Department of Labor market research data as of July 24, 2026; asml.com indicates 3,000 employees as of 2022. (9) Plans to relocate its headquarters from Farmington to West Hartford in 2027. (10) Plans to retire by the end of Q2 2027. (11) North American affiliate of Henkel AG & Co. KGaA, based in Germany. (12) Traded on Paris Stock Exchange and Legrand S.A. American Depositary Receipts (ADR). (13) Additional location in Stratford. (14) Traded on the SIX Swiss Exchange. (15) A wholly owned subsidiary of The Cooper Cos. with an additional location in Guilford. (16) From HBJ's 2025 survey. (17) For parent company, The Cooper Cos. (18) Subsidiary of Colt CZ Group since March 2021. (19) Additional location in Newington. (20) 3,900 in the United States. -Compiled by Stephanie R. Meagher, research@nebusinessmedia.com LARGEST MANUFACTURERS IN CONNECTICUT (1) Ranked by number of Conn.-based employees