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2025 BOOK OF LISTS | HARTFORDBUSINESS.COM 43 H E A LT H LARGEST LIFE SCIENCES & BIOTECHNOLOGY COMPANIES IN CONNECTICUT Ranked by number of employees statewide Largest life sciences & biotechnology companies in Connecticut Ranked by number of employees statewide Company No. CT employees/ no. worldwide employees Headquarters/ focus Ownership type/ ticker symbol Head of company/ year founded 1 Inc. 558 Eastern Point Road, Groton 06340 (1) 860-441-4100; .com 2,600 (2) 88,000 New York, N.Y. Pharmaceutical research, development and manufacturing Public NYSE: PFE Albert Bourla CEO 1849 2 Medtronic Inc. 60 Middletown Ave., North Haven 06473 203-492-5000; medtronic.com 2,500 (3) 95,000 Galway, Ireland Healthcare technology with treatments for 70 health conditions, cardiac devices, surgical robotics, insulin pumps, surgical tools, patient monitoring systems and more Public NYSE: MDT Geoffrey S. Martha CEO 1949 3 Boehringer Ingelheim Pharmaceuticals Inc. 900 Ridgebury Road, 06877 203-798-9988; boehringer-ingelheim.us 1,932 53,500 Development and manufacturing of human healthcare products, especially in areas of unmet medical need Private Jean-Michel Boers President, CEO & managing director, Boehringer Ingelheim USA 1885 4 Alexion, AstraZeneca Rare Disease 100 College St., New Haven 06510 475-230-2596; alexion.com 775 N/A Boston, Mass. Development & delivery of life-changing medicines for rare diseases Public NASDAQ: AZN Marc Dunoyer CEO 1992 5 CooperSurgical Inc. (4) 75 Corporate Drive, Trumbull 06611 203-601-5200; coopersurgical.com 752 3,285 Trumbull Development and commercialization of medical devices and diagnostics for women's health Public NASDAQ: COO (5) Holly Shef President 1990 6 Paragon Medical, an Ametek business (6) 1146 Barnum Ave., Bridgeport 06610 203-336-0121; paragonmedical.com 615 (7) 2,700 (7) Berwyn, Penn. & Pierceton, Ind. Medical device manufacturing and components for robotic assisted surgery, endoscopy, minimally invasive surgery, drug delivery, cosmetic surgery Public NYSE: AME David A. Zapico President & CEO, Ametek Inc. Wil Boren CEO, Paragon Medical 1991 7 PerkinElmer LLC (8) 710 Bridgeport Ave., Shelton 06484 203-925-4600; newperkinelmer.com 563 (9) 5,000 Shelton OneSource laboratory atomic & molecular spectroscopy, chromatography instruments, consumables & reagents for biopharma, food, environmental and applied markets Private Dirk Bontridder CEO 1937 8 The Jackson Laboratory for Genomic Medicine 10 Discovery Drive, Farmington 06032 860-837-2474; jax.org 465 N/A Bar Harbor, Maine Discovery of genomic causes of disease and development of diagnostics and therapeutics Non-pr Mark Adams ector 2014 (10) 9 Avna Inc. (11) 200 Ellis St., New Britain 06051 860-225-8707; avna.com 340 425 New Britain Medical device manufacturing Private Jason M. Howey President & CEO 1911 10 MannKind Corp. 1 Casper St., Danbury 06810 203-798-8000; mannkindcorp.com 270 420 Danbury Development and commercialization of inhaled therapeutic products and devices for patients with endocrine and orphan lung diseases Public NASDAQ: MNKD Michael Castagna CEO 1991 11 Arvinas Inc. 5 Science Park, 395 Winchester Ave., New Haven 06511 203-535-1456; arvinas.com 253 437 New Haven Development of therapeutics to treat targets in oncology, immuno-oncology and neuroscience Public NASDAQ: ARVN John Houston Chairperson, CEO & president 2013 12 Purdue Pharma LP 1 Stamford Forum, 201 Tresser Blvd., Stamford 06901 800-745-7445; purduepharma.com 175 (3) 460 (3) Stamford Medication development & manufacture with three opioid addiction treatment and overdose reversal medicines Private Craig Landau President & CEO 1991 12 TOMZ Corp. 47 Episcopal Road, Berlin 06037 860-829-0670; tomz.com 175 (12) 210 (12) Berlin Medical device manufacturing Private Tom Matulaniec President 1988 14 Arthur G. Russell 750 Clark Ave., Bristol 06010 860-583-4109; arthurgrussell.com 90 90 Bristol Medical device assembly Private Jason Ensminger President 1945 15 Quantum-Si Inc. 29 Business Park Drive, Branford 06405 866-688-7374; quantum-si.com 68 191 Branford Life sciences and protein sequencing Public NASDAQ: QSI (13) Jeff Hawkins CEO 2013 16 Innovative Medical Products Inc. 87 Spring Lane, Plainville 06062 860-793-0391; impmedical.com 60 (3) N/A Plainville Design, manufacture and sale of patient positioning devices for surgical procedures in hospitals and ambulatory surgery centers Private Alan A. Wasley CEO 1983 Source: Each company via survey as of Q3 2024, websites and/or press releases, annual 10-K reports and Labor Market Information database, Conn. Dept. of Labor. Note: N/A = Not available. Stamford-based GeneDx, formerly Sema4 Holdings Corp., does not disclose employee counts. Stamfor Piper Sandler & Co. to determine strategic alternatives as it winds down operations. (1) Additional clinical research site in New Haven. (2) Data fr fs in Groton that were announced in November 2023. Statewide employee count falls within a range of 1,000 to 4,999, according to the Connecticut Department of Labor market research data for September 2024. (3) Data from Q4 2023 survey. (4) A wholly owned subsidiary of The Cooper Cos. with an additional location in Guilford. (5) For parent company, The Cooper Cos. (6) Additional locations at 75 Aircraft Road in Southington and 6 Northrop Industrial Park Road West in Wallingford. (7) Data from Q3 2023 survey, prior to acquisition by Ametek in January 2024. (8) In May 2023, PerkinElmer Inc. rebranded as Waltham-Mass.-based Revvity (NYSE: RVTY) and no longer has a presence in Conn. A new PerkinElmer LLC was spun off and acquired by New Mountain Capital; the Shelton of e part of PerkinElmer LLC. (9) Data from 2022 survey; statewide employee count falls within a range of 500 to 999 , according to Connecticut Department of Labor market research data for September 2023. (10) Year founded for the Farmington site. The Jackson Laboratory was founded in 1929. (11) Formerly Okay Industries. (12) Data from Q3 2023 survey. (13) In November e for 30 consecutive days; the company has until May 2025 to raise its stock price. -Compiled by Stephanie R. Meagher, research@nebusinessmedia.com