Insights

Growth Leadership Mainspring Energy has recently appointed high-profile leadership including a new CEO formerly with Cummins and a new President, signaling a strong growth trajectory and readiness for scaled deployments. This presents an opportunity to engage executive stakeholders with strategic partnerships and large-scale energy projects.

Expansion Footprint Significant investments in manufacturing capacity and facilities in North America, including a new 300,000-square-foot plant and a Pittsburgh facility expansion, indicate a push to increase production for clean energy technologies, creating demand for supply chain services, regional distributors, and after-sales support.

Hydrogen Synergy Partnership with Verdagy to deploy hydrogen-powered linear generators in Moss Landing suggests an interest in hydrogen integration solutions, opening sales opportunities for hydrogen electrolyzer compatibility, storage, fueling infrastructure, and related ancillary equipment.

Financing Momentum substantial funding rounds including a $258M Series F and a total funding posture of over $800M position Mainspring for large-scale projects with utilities and data centers, making them a prime target for financing partners, EPCs, and project developers seeking turnkey clean-energy deployments.

Industries Focus Customer base spans utilities, data centers, enterprise, and industrial sectors that require reliable, low-emission local power. These segments offer cross-sell opportunities for complementary technologies such as energy storage, microgrids, and remote monitoring software to maximize site resilience and efficiency.

Mainspring Energy Tech Stack

Mainspring Energy uses 8 technology products and services including Ansible, Inductive Automation, 6sense, and more. Explore Mainspring Energy's tech stack below.

  • Ansible
    Configuration Management
  • Inductive Automation
    Database Management Software
  • 6sense
    Marketing Automation
  • HTTP/2
    Miscellaneous
  • Linux kernel
    Operating Systems
  • Lever
    Recruitment Marketing
  • Google
    Search Engines
  • Tailwind CSS
    UI Frameworks

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

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 July 2026, Mainspring Energy has approximately 517 employees across 4 continents, including North AmericaAsiaEurope. Key team members include Vice President Engineering: D. U.Head Of Brand Marketing: T. R.Head Of Project Delivery: B. H.. 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 AnsibleInductive Automation6senseHTTP/2Linux kernelLeverGoogleTailwind CSS.

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 July 2026, Mainspring Energy has raised $813M 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 logo

Mainspring Energy

Electric Power GenerationCalifornia, United States501-1000 Employees

Mainspring Energy is a power generation company based in Menlo Park, California, that designs and manufactures linear generators for local power delivery to capacity-constrained facilities and communities. Its products are used by utilities, data centers, enterprise customers, and industrial sectors. The company employs between 501 and 1,000 people and is headquartered at 3601 Haven Avenue, Menlo Park, CA 94025. In 2025 it expanded its manufacturing footprint with a 300,000-square-foot facility investment in Pittsburgh, Pennsylvania. Also in 2025, Mainspring Energy completed a Series F financing round led by General Catalyst.

Section iconCompany Overview

Phone number
NAICS Code
22111 - Electric Power Generation
Founded
2010
Employees
501-1000

Section iconFunding & Financials

  • $813M

    Mainspring Energy has raised a total of $813M of funding over 8 rounds. Their latest funding round was raised on Apr 14, 2025 in the amount of $258Mas a series_f.

  • $100M$250M

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

Section iconFunding & Financials

  • $813M

    Mainspring Energy has raised a total of $813M of funding over 8 rounds. Their latest funding round was raised on Apr 14, 2025 in the amount of $258Mas a series_f.

  • $100M$250M

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

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