United States

Top 105 largest US Companies in the Software—Infrastructure industry by Market Cap

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

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Top Software—Infrastructure Companies from the United States as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
31 Shift4 Payments, Inc. $5.55 B United States US Technology US Software—Infrastructure
32 KnowBe4, Inc. $5.54 B

(Jan. 1, 2023)

 United States US Technology US Software—Infrastructure
33 WEX Inc. $5.09 B United States US Technology US Software—Infrastructure
34 Qualys, Inc. $4.73 B United States US Technology US Software—Infrastructure
35 ACI Worldwide, Inc. $4.71 B United States US Technology US Software—Infrastructure
36 DigitalOcean Holdings, Inc. $4.48 B United States US Technology US Software—Infrastructure
37 FireEye, Inc. $4.13 B

(Sept. 1, 2022)

 United States US Technology US Software—Infrastructure
38 Box, Inc. $4.13 B United States US Technology US Software—Infrastructure
39 Varonis Systems, Inc. $3.78 B United States US Technology US Software—Infrastructure
40 SPS Commerce, Inc. $3.33 B United States US Technology US Software—Infrastructure
41 BlackLine, Inc. $3.33 B United States US Technology US Software—Infrastructure
42 Euronet Worldwide, Inc. $3.12 B United States US Technology US Software—Infrastructure
43 CleanSpark, Inc. $3.09 B United States US Technology US Software—Infrastructure
44 EVO Payments, Inc. $2.98 B

(Jan. 1, 2023)

 United States US Technology US Software—Infrastructure
45 Tenable Holdings, Inc. $2.75 B United States US Technology US Software—Infrastructure
46 Bottomline Technologies, Inc. $2.59 B

(May 1, 2022)

 United States US Technology US Software—Infrastructure
47 Appian Corporation $2.52 B United States US Technology US Software—Infrastructure
48 SolarWinds Corporation $2.50 B

(Jan. 1, 2025)

 United States US Technology US Software—Infrastructure
49 Ping Identity Holding Corp. $2.46 B

(Oct. 1, 2022)

 United States US Technology US Software—Infrastructure
50 J2 Global, Inc. $2.46 B

(July 1, 2024)

 United States US Technology US Software—Infrastructure
51 CSG Systems International, Inc. $2.19 B United States US Technology US Software—Infrastructure
52 NetScout Systems, Inc. $1.94 B United States US Technology US Software—Infrastructure
53 GreenSky, Inc. $1.85 B

(April 1, 2022)

 United States US Technology US Software—Infrastructure
54 EVERTEC, Inc. $1.84 B United States US Technology US Software—Infrastructure
55 Zuora, Inc. $1.53 B

(Jan. 1, 2025)

 United States US Technology US Software—Infrastructure
56 Five9, Inc. $1.47 B United States US Technology US Software—Infrastructure
57 Ziff Davis, Inc. $1.39 B United States US Technology US Software—Infrastructure
58 Verint Systems Inc. $1.29 B

(July 1, 2025)

 United States US Technology US Software—Infrastructure
59 A10 Networks, Inc. $1.25 B United States US Technology US Software—Infrastructure
60 E2open Parent Holdings, Inc. $1.02 B

(July 1, 2025)

 United States US Technology US Software—Infrastructure

Top Software—Infrastructure Companies from the United States as of Jan. 01, 2026

31. Shift4 Payments, Inc.

Company Profile: Shift4 Payments, Inc.
Market Cap (USD): $5.55 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

32. KnowBe4, Inc.

Company Profile: KnowBe4, Inc.
Market Cap (USD): $5.54 B (Jan. 1, 2023)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

33. WEX Inc.

Company Profile: WEX Inc.
Market Cap (USD): $5.09 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

34. Qualys, Inc.

Company Profile: Qualys, Inc.
Market Cap (USD): $4.73 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

35. ACI Worldwide, Inc.

Company Profile: ACI Worldwide, Inc.
Market Cap (USD): $4.71 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

36. DigitalOcean Holdings, Inc.

Company Profile: DigitalOcean Holdings, Inc.
Market Cap (USD): $4.48 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

37. FireEye, Inc.

Company Profile: FireEye, Inc.
Market Cap (USD): $4.13 B (Sept. 1, 2022)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

38. Box, Inc.

Company Profile: Box, Inc.
Market Cap (USD): $4.13 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

39. Varonis Systems, Inc.

Company Profile: Varonis Systems, Inc.
Market Cap (USD): $3.78 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

40. SPS Commerce, Inc.

Company Profile: SPS Commerce, Inc.
Market Cap (USD): $3.33 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

41. BlackLine, Inc.

Company Profile: BlackLine, Inc.
Market Cap (USD): $3.33 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

42. Euronet Worldwide, Inc.

Company Profile: Euronet Worldwide, Inc.
Market Cap (USD): $3.12 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

43. CleanSpark, Inc.

Company Profile: CleanSpark, Inc.
Market Cap (USD): $3.09 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

44. EVO Payments, Inc.

Company Profile: EVO Payments, Inc.
Market Cap (USD): $2.98 B (Jan. 1, 2023)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

45. Tenable Holdings, Inc.

Company Profile: Tenable Holdings, Inc.
Market Cap (USD): $2.75 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

46. Bottomline Technologies, Inc.

Company Profile: Bottomline Technologies, Inc.
Market Cap (USD): $2.59 B (May 1, 2022)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

47. Appian Corporation

Company Profile: Appian Corporation
Market Cap (USD): $2.52 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

48. SolarWinds Corporation

Company Profile: SolarWinds Corporation
Market Cap (USD): $2.50 B (Jan. 1, 2025)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

49. Ping Identity Holding Corp.

Company Profile: Ping Identity Holding Corp.
Market Cap (USD): $2.46 B (Oct. 1, 2022)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

50. J2 Global, Inc.

Company Profile: J2 Global, Inc.
Market Cap (USD): $2.46 B (July 1, 2024)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

51. CSG Systems International, Inc.

Company Profile: CSG Systems International, Inc.
Market Cap (USD): $2.19 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

52. NetScout Systems, Inc.

Company Profile: NetScout Systems, Inc.
Market Cap (USD): $1.94 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

53. GreenSky, Inc.

Company Profile: GreenSky, Inc.
Market Cap (USD): $1.85 B (April 1, 2022)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

54. EVERTEC, Inc.

Company Profile: EVERTEC, Inc.
Market Cap (USD): $1.84 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

55. Zuora, Inc.

Company Profile: Zuora, Inc.
Market Cap (USD): $1.53 B (Jan. 1, 2025)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

56. Five9, Inc.

Company Profile: Five9, Inc.
Market Cap (USD): $1.47 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

57. Ziff Davis, Inc.

Company Profile: Ziff Davis, Inc.
Market Cap (USD): $1.39 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

58. Verint Systems Inc.

Company Profile: Verint Systems Inc.
Market Cap (USD): $1.29 B (July 1, 2025)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

59. A10 Networks, Inc.

Company Profile: A10 Networks, Inc.
Market Cap (USD): $1.25 B
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

60. E2open Parent Holdings, Inc.

Company Profile: E2open Parent Holdings, Inc.
Market Cap (USD): $1.02 B (July 1, 2025)
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

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