United States

Top 50 largest US Companies in the Auto Parts industry by Market Cap

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

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

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Rank Company Market Cap (USD) Country Sector Industry
31 Romeo Power, Inc. $65.1 M

(Oct. 1, 2022)

 United States US Consumer Discretionary US Auto Parts
32 Zyrox Mining International, Inc. $56.7 M

(Dec. 1, 2021)

 United States US Consumer Discretionary US Auto Parts
33 Superior Industries International, Inc. $9.6 M United States US Consumer Discretionary US Auto Parts
34 Fuel Doctor Holdings, Inc. $91,510

(July 1, 2024)

 United States US Consumer Discretionary US Auto Parts
35 Avatar Ventures Corp United States US Consumer Discretionary US Auto Parts
36 Affiliated Resources Corp United States US Consumer Discretionary US Auto Parts
37 Holley Inc. United States US Consumer Discretionary US Auto Parts
38 PHINIA Inc. United States US Consumer Discretionary US Auto Parts
39 Synthesis Energy Systems Inc United States US Consumer Discretionary US Auto Parts
40 Hilliard Corp United States US Consumer Discretionary US Auto Parts
41 Cooper Tire & Rubber Company United States US Consumer Discretionary US Auto Parts
42 Hydrogenetics, Inc. United States US Consumer Discretionary US Auto Parts
43 AEye, Inc. United States US Consumer Discretionary US Auto Parts
44 Service Team, Inc. United States US Consumer Discretionary US Auto Parts
45 Vydrotech, Inc. United States US Consumer Discretionary US Auto Parts
46 Energtek, Inc. United States US Consumer Discretionary US Auto Parts
47 puraDYN Filter Technologies, Inc. United States US Consumer Discretionary US Auto Parts
48 Enova Systems, Inc. United States US Consumer Discretionary US Auto Parts
49 Proliance International, Inc. United States US Consumer Discretionary US Auto Parts
50 ATC Venture Group, Inc. United States US Consumer Discretionary US Auto Parts

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

31. Romeo Power, Inc.

Company Profile: Romeo Power, Inc.
Market Cap (USD): $65.1 M (Oct. 1, 2022)
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

32. Zyrox Mining International, Inc.

Company Profile: Zyrox Mining International, Inc.
Market Cap (USD): $56.7 M (Dec. 1, 2021)
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

33. Superior Industries International, Inc.

Company Profile: Superior Industries International, Inc.
Market Cap (USD): $9.6 M
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

34. Fuel Doctor Holdings, Inc.

Company Profile: Fuel Doctor Holdings, Inc.
Market Cap (USD): $91,510 (July 1, 2024)
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

35. Avatar Ventures Corp

Company Profile: Avatar Ventures Corp
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

36. Affiliated Resources Corp

Company Profile: Affiliated Resources Corp
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

37. Holley Inc.

Company Profile: Holley Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

38. PHINIA Inc.

Company Profile: PHINIA Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

39. Synthesis Energy Systems Inc

Company Profile: Synthesis Energy Systems Inc
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

40. Hilliard Corp

Company Profile: Hilliard Corp
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

41. Cooper Tire & Rubber Company

Company Profile: Cooper Tire & Rubber Company
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

42. Hydrogenetics, Inc.

Company Profile: Hydrogenetics, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

43. AEye, Inc.

Company Profile: AEye, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

44. Service Team, Inc.

Company Profile: Service Team, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

45. Vydrotech, Inc.

Company Profile: Vydrotech, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

46. Energtek, Inc.

Company Profile: Energtek, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

47. puraDYN Filter Technologies, Inc.

Company Profile: puraDYN Filter Technologies, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

48. Enova Systems, Inc.

Company Profile: Enova Systems, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

49. Proliance International, Inc.

Company Profile: Proliance International, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

50. ATC Venture Group, Inc.

Company Profile: ATC Venture Group, Inc.
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

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