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Mainspring

Mainspring

Private
Menlo Park, CaliforniaEnergy & Sustainabilityhttps://mainspringwa.com

Last Round

Series B

Aug 17, 2012

Total Funding Raised

$40M

Company Overview

Mainspring operates in Energy & Sustainability and is based in Menlo Park, California. Its latest recorded funding round was a Series B round in August 2012.

Mainspring Wealth Advisors is a Washington-based wealth management firm that provides financial planning and investment advisory services to individuals and families.

Sector

Energy & Sustainability

Verticals

Smart Grid, Energy Management, Energy Storage, Alternative Fuels

Business Model

B2B

Customer Profile

Hardware Sales, Hardware + Subscription, Government Contracts, Services & Consulting

AI Layer

Application

Keywords

linear generatoron-site power generationfuel-flexible generatorenergy-as-a-serviceEaaSdispatchable powermicrogriddata center powerdistributed energy resourcesDERsbehind-the-meter generationpower purchase agreementPPAhydrogen power generationprime powernon-combustion reactioncommercial and industrial powerammonia power generation

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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Mainspring Comparables

Compare Mainspring with similar companies based on industry and business-model similarity.

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Mainspring Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BAug 17, 2012
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Mainspring Investors

Notable investors and investment history

Mainspring investors
InvestorRounds
Khosla VenturesSeries B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 17, 2012

    Raised $40M with Khosla Ventures and Bill Gates

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Mainspring Filings

Explore SEC and related filing metadata, where available.

Mainspring filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Mainspring's valuation, stock price, and market status.

Is Mainspring a public or private company?

Mainspring is a private company.

What is the current stock price of Mainspring?

Mainspring is a private company, so its shares have no public market price. Caplight tracks Mainspring's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Mainspring worth (valuation)?

Valuation information for Mainspring is not publicly available.

Can I buy Mainspring stock?

Mainspring shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Mainspring's last funding round?

Mainspring's most recent funding round was Series B on August 17, 2012.

Who are the main investors in Mainspring?

Key investors in Mainspring include Khosla Ventures.

Will Mainspring IPO soon?

No public IPO plans have been announced for Mainspring.

How can I track Mainspring secondary market activity?

Caplight tracks bids, offers, and trades in Mainspring's shares on secondary markets.

Firmographic Details

HeadquartersMenlo Park, California
Year Founded2013
Last FundingAug 17, 2012

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