United States

Top 1000 largest US Companies in the Healthcare sector by Market Cap

This is the list of the largest public listed companies in the Healthcare sector from the United States by market capitalization with links to their reference stock and industry.

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Top Healthcare Companies from the United States as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
31 Alnylam Pharmaceuticals, Inc. $43.00 B United States US Healthcare US Biotechnology
32 Cardinal Health, Inc. $38.66 B United States US Healthcare US Medical Distribution
33 ResMed Inc. $37.52 B United States US Healthcare US Medical Instruments & Supplies
34 GE HealthCare Technologies Inc. $34.85 B United States US Healthcare US Health Information Services
35 Agilent Technologies, Inc. $34.28 B United States US Healthcare US Diagnostics & Research
36 DexCom, Inc. $32.77 B United States US Healthcare US Diagnostics & Research
37 Humana Inc. $28.93 B United States US Healthcare US Healthcare Plans
38 IQVIA Holdings Inc. $28.41 B United States US Healthcare US Diagnostics & Research
39 Viela Bio, Inc. $26.31 B United States US Healthcare US Biotechnology
40 Mettler-Toledo International Inc. $25.13 B United States US Healthcare US Diagnostics & Research
41 STERIS Corp $23.46 B United States US Healthcare US Medical Devices
42 Natera, Inc. $22.09 B United States US Healthcare US Diagnostics & Research
43 Laboratory Corporation of America Holdings $21.92 B United States US Healthcare US Diagnostics & Research
44 Insulet Corporation $21.23 B United States US Healthcare US Medical Devices
45 Waters Corporation $20.94 B United States US Healthcare US Diagnostics & Research
46 Royalty Pharma plc $20.45 B United States US Healthcare US Biotechnology
47 Quest Diagnostics Incorporated $19.71 B United States US Healthcare US Diagnostics & Research
48 Biogen Inc. $19.52 B United States US Healthcare US Drug Manufacturers—General
49 Insmed Incorporated $18.66 B United States US Healthcare US Biotechnology
50 Zimmer Biomet Holdings, Inc. $18.50 B United States US Healthcare US Medical Devices
51 Genesis Healthcare Inc. $18.49 B United States US Healthcare US Medical Care Facilities
52 Abiomed, Inc. $17.18 B

(Dec. 1, 2022)

 United States US Healthcare US Medical Devices
53 Centene Corporation $16.81 B United States US Healthcare US Healthcare Plans
54 Summit Therapeutics Inc. $16.80 B United States US Healthcare US Biotechnology
55 PPD, Inc. $16.58 B

(Dec. 1, 2021)

 United States US Healthcare US Drug Manufacturers—Specialty & Generic
56 Tenet Healthcare Corporation $16.00 B United States US Healthcare US Medical Care Facilities
57 Baxter International Inc. $15.98 B United States US Healthcare US Medical Instruments & Supplies
58 West Pharmaceutical Services, Inc. $15.97 B United States US Healthcare US Medical Instruments & Supplies
59 Illumina, Inc. $15.88 B United States US Healthcare US Diagnostics & Research
60 The Cooper Companies, Inc. $14.57 B United States US Healthcare US Medical Instruments & Supplies

Top Healthcare Companies from the United States as of Jul. 01, 2025

31. Alnylam Pharmaceuticals, Inc.

Company Profile: Alnylam Pharmaceuticals, Inc.
Market Cap (USD): $43.00 B
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

32. Cardinal Health, Inc.

Company Profile: Cardinal Health, Inc.
Market Cap (USD): $38.66 B
Country: United States
Sector: US Healthcare
Industry: US Medical Distribution

33. ResMed Inc.

Company Profile: ResMed Inc.
Market Cap (USD): $37.52 B
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

34. GE HealthCare

Company Profile: GE HealthCare Technologies Inc.
Market Cap (USD): $34.85 B
Country: United States
Sector: US Healthcare
Industry: US Health Information Services

35. Agilent Technologies, Inc.

Company Profile: Agilent Technologies, Inc.
Market Cap (USD): $34.28 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

36. DexCom, Inc.

Company Profile: DexCom, Inc.
Market Cap (USD): $32.77 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

37. Humana Inc.

Company Profile: Humana Inc.
Market Cap (USD): $28.93 B
Country: United States
Sector: US Healthcare
Industry: US Healthcare Plans

38. IQVIA Holdings Inc.

Company Profile: IQVIA Holdings Inc.
Market Cap (USD): $28.41 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

39. Viela Bio, Inc.

Company Profile: Viela Bio, Inc.
Market Cap (USD): $26.31 B
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

40. Mettler-Toledo International Inc.

Company Profile: Mettler-Toledo International Inc.
Market Cap (USD): $25.13 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

41. STERIS Corp

Company Profile: STERIS Corp
Market Cap (USD): $23.46 B
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

42. Natera, Inc.

Company Profile: Natera, Inc.
Market Cap (USD): $22.09 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

43. Laboratory Corporation of America Holdings

Company Profile: Laboratory Corporation of America Holdings
Market Cap (USD): $21.92 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

44. Insulet Corporation

Company Profile: Insulet Corporation
Market Cap (USD): $21.23 B
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

45. Waters Corporation

Company Profile: Waters Corporation
Market Cap (USD): $20.94 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

46. Royalty Pharma plc

Company Profile: Royalty Pharma plc
Market Cap (USD): $20.45 B
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

47. Quest Diagnostics Incorporated

Company Profile: Quest Diagnostics Incorporated
Market Cap (USD): $19.71 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

48. Biogen Inc.

Company Profile: Biogen Inc.
Market Cap (USD): $19.52 B
Country: United States
Sector: US Healthcare
Industry: US Drug Manufacturers—General

49. Insmed Incorporated

Company Profile: Insmed Incorporated
Market Cap (USD): $18.66 B
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

50. Zimmer Biomet Holdings, Inc.

Company Profile: Zimmer Biomet Holdings, Inc.
Market Cap (USD): $18.50 B
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

51. Genesis Healthcare Inc.

Company Profile: Genesis Healthcare Inc.
Market Cap (USD): $18.49 B
Country: United States
Sector: US Healthcare
Industry: US Medical Care Facilities

52. Abiomed, Inc.

Company Profile: Abiomed, Inc.
Market Cap (USD): $17.18 B (Dec. 1, 2022)
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

53. Centene Corporation

Company Profile: Centene Corporation
Market Cap (USD): $16.81 B
Country: United States
Sector: US Healthcare
Industry: US Healthcare Plans

54. Summit Therapeutics Inc.

Company Profile: Summit Therapeutics Inc.
Market Cap (USD): $16.80 B
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

55. PPD, Inc.

Company Profile: PPD, Inc.
Market Cap (USD): $16.58 B (Dec. 1, 2021)
Country: United States
Sector: US Healthcare
Industry: US Drug Manufacturers—Specialty & Generic

56. Tenet Healthcare Corporation

Company Profile: Tenet Healthcare Corporation
Market Cap (USD): $16.00 B
Country: United States
Sector: US Healthcare
Industry: US Medical Care Facilities

57. Baxter International Inc.

Company Profile: Baxter International Inc.
Market Cap (USD): $15.98 B
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

58. West Pharmaceutical Services, Inc.

Company Profile: West Pharmaceutical Services, Inc.
Market Cap (USD): $15.97 B
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

59. Illumina, Inc.

Company Profile: Illumina, Inc.
Market Cap (USD): $15.88 B
Country: United States
Sector: US Healthcare
Industry: US Diagnostics & Research

60. The Cooper Companies, Inc.

Company Profile: The Cooper Companies, Inc.
Market Cap (USD): $14.57 B
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

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