Maxwell Technologies

San Diego, United States Founded: 1965 • Age: 61 yrs Acquired By Clarios
Ultracapacitor-based energy storage and power delivery solutions are provided.
Annual revenue $90.5M Latest available
Total funding - 5 rounds
Employees 6 Tracked headcount
Investors 5 Known backers
Products 3 Services tracked
Competitors 8 Brand Intelligence

About Maxwell Technologies

Maxwell Technologies is a company based in San Diego (United States) founded in 1965 was acquired by Clarios in November 2025. The company has 6 employees as of October 31, 2023. Maxwell Technologies has completed 1 acquisition, including Nesscap. Maxwell Technologies offers products and services including Ultracapacitor, Cells, and Modules. Maxwell Technologies operates in a competitive market with competitors including Power Roll, Ioxus, Tubex NRG, Nesscap and Inmatech, among others.

  • Headquarter San Diego, United States
  • Employees 6 as on 31 Oct, 2023
  • Stage Public
  • Sectors
    Energy & Utilities
  • Phone
    Locked
  • Website
    Locked
  • Social
    Locked
  • Legal Name Maxwell Technologies Korea Co., Ltd.
Operational Areas
Energy & Utilities → Energy Storage & Efficiency Unlock Sub-Sector Unlock Segment
Key Metrics
  • Annual Revenue
    $90.46 M (USD)
    3
    as on Dec 31, 2018
  • Net Profit
    -$36.55 M (USD)
    15
    as on Dec 31, 2018
  • EBITDA
    -$40.72 M (USD)
    21
    as on Dec 31, 2018
  • Latest Funding Round
    $46 M (USD), Post-IPO

    Oct 12, 2017

  • Investors
    Tesla

    & 4 more

  • Employee Count
    6

    as on Oct 31, 2023

  • Investments & Acquisitions
  • Acquired by
    Clarios

    & 1 more

    (Nov 12, 2025)

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Products & Services of Maxwell Technologies

Maxwell Technologies offers a comprehensive portfolio of products and services, including Ultracapacitor, Cells, and Modules.

Product name locked
Category locked
Primary

Delivers high-power solutions for electronics and automotive applications

Product name locked
Category locked
Locked

Provides basic units for energy storage in various devices

Product name locked
Category locked
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Offers integrated systems for power delivery and management

People of Maxwell Technologies

Headcount 50-200
Employee Profiles 32
Employee Profiles
People
Young Ho Kim
VP & CEO of Korea
People
Jeff Zhou
Vice President & General Manager China & Sales Asia Pacific
People
Mike Hamm
Sr Process Development Technician
People
Ronny Jiao
产品工程师

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Funding Insights of Maxwell Technologies

Investors in Maxwell Technologies

Maxwell Technologies has secured backing from 5 investors, including venture fund and institutional investors. Prominent investors backing the company include Tesla, East West Bank and Clarios.

All
Venture Fund
Institutional
Investor Description Founded Year Domain Location
Private equity firm investing in multiple sectors
Locked Locked Locked
Commercial banking services are offered to individuals and businesses.
Locked Locked Locked
Government entites focused on freedom, democracy, equality and the rule of law, promoting peace and stability
Locked Locked Locked
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Investor details for Maxwell Technologies

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  • Participation history

Verified entity values are shown only after access is granted.

Investments & Acquisitions by Maxwell Technologies

Maxwell Technologies has strategically engaged in corporate development activities, having acquired 1 company. Notable acquisitions include Nesscap.

Investments
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Investment portfolio details for Maxwell Technologies

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  • Transaction dates
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Acquisitions
Company Name Description Domain Location Founded Year Amount
Developer of ultracapacitors for energy storage solutions
Locked Locked 2000 Locked
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Complete acquisition details for Maxwell Technologies

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Financial Statements - Maxwell Technologies

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Detailed financials for Maxwell Technologies

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Maxwell Technologies Comparisons

Maxwell Technologies Primary company
Description
Ultracapacitor-based energy storage and power delivery solut...
Location
San Diego, United States
Founded Year
1965
Annual Revenue
$90.46 M (USD)
Net Profit
-$36.55 M (USD)
EBITDA
-$40.72 M (USD)
Employees
6
As of 2023
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Peer comparison for Maxwell Technologies

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Competitors of Maxwell Technologies

Maxwell Technologies operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Power Roll, Ioxus, Tubex NRG, Nesscap and Inmatech, among others.

Company Name Domain Founded year HQ Location Description
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Perovskite solar films and capacitors are developed using microgroove technology.
Locked Locked Locked
Manufacturer of ultracapacitor cell and module
Locked Locked Locked
Nanotechnology-based battery solutions using peptide nanotubes are provided.
Locked Locked Locked
Developer of ultracapacitors for energy storage solutions
Locked Locked Locked
Super-capacitor devices are developed with low-cost materials and aqueous electrolytes.
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Detailed competitors of Maxwell Technologies

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Latest news on Maxwell Technologies

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Complete news archive for Maxwell Technologies

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Frequently Asked Questions about Maxwell Technologies

Maxwell Technologies was founded in 1965 and raised its 1st funding round 50 years after it was founded.

Maxwell Technologies is headquartered in San Diego, United States. It is registered at San Diego, California, United States.

Franz J Fink is the current CEO of Maxwell Technologies.

As of Oct 31, 2023, the latest employee count at Maxwell Technologies is 6.

Annual revenue of Maxwell Technologies is $90.46M as on Dec 31, 2018.

Maxwell Technologies was founded in 1965 and is headquartered in San Diego, United States. Ultracapacitor technology is utilized for energy storage and power delivery in sectors such as automotive, heavy transportation, renewable energy, backup power systems, wireless communications, and industrial and consumer electronics. Operations focus on developing reliable solutions for these applications across global markets.

Maxwell Technologies's top competitors include Power Roll, Ioxus and Tubex NRG.

Maxwell Technologies offers Ultracapacitor, Cells, and Modules.

Maxwell Technologies has made 1 acquisition, including Nesscap.

Maxwell Technologies has 5 investors. Key investors include Tesla, East West Bank, Clarios, European Union, and SDIC Innovation.

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