Insights

Expanding Manufacturing Capabilities Mainspring Energy is heavily investing in new manufacturing facilities with over $258 million allocated to build and expand production plants in Pittsburgh and Pennsylvania, indicating a strong growth trajectory and increased capacity to meet rising demand for low-emission generators.

Focus on Clean Technology The company's partnership with Verdagy for hydrogen-powered generator installations and recent investments highlight a strategic emphasis on integrating clean energy solutions, creating opportunities to offer complementary technologies in green energy markets.

Robust Financial Backing With a substantial Series F funding of $258 million and recent investments for manufacturing expansion, Mainspring Energy demonstrates financial strength that supports large-scale projects and long-term collaborations with utility companies and large industrial clients.

Target Customer Segments Serving utilities, data centers, enterprise, and industrial sectors positions Mainspring Energy to develop tailored energy solutions; engaging with companies in these markets can unlock significant sales potential as demand for flexible, low-emission power solutions increases.

Growth Through Job Creation The company's plans to create over 600 skilled jobs through new manufacturing facilities suggest a commitment to regional economic development, creating opportunities for partnerships with service providers, suppliers, and local stakeholders in support of expansion efforts.

Mainspring Energy Tech Stack

Mainspring Energy uses 8 technology products and services including Cloudflare CDN, NetSuite, PWA, and more. Explore Mainspring Energy's tech stack below.

  • Cloudflare CDN
    Content Delivery Network
  • NetSuite
    E-commerce
  • PWA
    Miscellaneous
  • Wonderware
    Miscellaneous
  • SAP Maintenance, Repair, and Overhaul
    Operations
  • Lever
    Recruitment Marketing
  • Yoast SEO
    Search Engines
  • Timesheets
    Time Tracking

Media & News

Mainspring Energy's Email Address Formats

Mainspring Energy uses at least 2 format(s):
Mainspring Energy Email FormatsExamplePercentage
First.Last@etagen.comJohn.Doe@etagen.com
100%
First.Last@mainspringenergy.comJohn.Doe@mainspringenergy.com
96%
Last@mainspringenergy.comDoe@mainspringenergy.com
3%
First@mainspringenergy.comJohn@mainspringenergy.com
1%

Frequently Asked Questions

Where is Mainspring Energy's headquarters located?

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Mainspring Energy's main headquarters is located at 3601 Haven Avenue Menlo Park, California 94025 United States. The company has employees across 4 continents, including North AmericaAsiaEurope.

What is Mainspring Energy's phone number?

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You can contact Mainspring Energy's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Mainspring Energy's official website and social media links?

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Mainspring Energy's official website is mainspringenergy.com and has social profiles on LinkedInCrunchbase.

What is Mainspring Energy's NAICS code?

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Mainspring Energy's NAICS code is 22111 - Electric Power Generation.

How many employees does Mainspring Energy have currently?

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As of March 2026, Mainspring Energy has approximately 517 employees across 4 continents, including North AmericaAsiaEurope. Key team members include Vp Of Business Development: J. I.Vp And Chief Engineer, Mechanical Systems: J. L.Vice President Engineering: D. U.. Explore Mainspring Energy's employee directory with LeadIQ.

What industry does Mainspring Energy belong to?

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Mainspring Energy operates in the Electric Power Generation industry.

What technology does Mainspring Energy use?

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Mainspring Energy's tech stack includes Cloudflare CDNNetSuitePWAWonderwareSAP Maintenance, Repair, and OverhaulLeverYoast SEOTimesheets.

What is Mainspring Energy's email format?

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Mainspring Energy's email format typically follows the pattern of First.Last@etagen.com. Find more Mainspring Energy email formats with LeadIQ.

How much funding has Mainspring Energy raised to date?

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As of March 2026, Mainspring Energy has raised $258M in funding. The last funding round occurred on Apr 14, 2025 for $258M.

When was Mainspring Energy founded?

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Mainspring Energy was founded in 2010.

Mainspring Energy

Electric Power GenerationCalifornia, United States501-1000 Employees

Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities. No other primary power solution can match the flexibility, affordability, and low emissions of a Mainspring Linear Generator. Mainspring customers across key industries — utilities, data centers, enterprise, and industrial — are taking control of their energy futures.

Section iconCompany Overview

Headquarters
3601 Haven Avenue Menlo Park, California 94025 United States
Phone number
NAICS Code
22111 - Electric Power Generation
Founded
2010
Employees
501-1000

Section iconFunding & Financials

  • $258M

    Mainspring Energy has raised a total of $258M of funding over 8 rounds. Their latest funding round was raised on Apr 14, 2025 in the amount of $258M.

  • $100M$250M

    Mainspring Energy's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $258M

    Mainspring Energy has raised a total of $258M of funding over 8 rounds. Their latest funding round was raised on Apr 14, 2025 in the amount of $258M.

  • $100M$250M

    Mainspring Energy's revenue is estimated to be in the range of $100M$250M

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