Polar Night Energy

Polar Night Energy

Private
TampereEnergy & Sustainabilityhttps://polarnightenergy.com/

Last Round

Seed

Apr 3, 2024

Total Funding Raised

$11.07M

Momentum Score

25 /100

Company Overview

Polar Night Energy is a renewable energy company that designs and manufactures high-temperature, sand-based thermal energy storage systems to store surplus wind and solar energy as heat.

Sector

Energy & Sustainability

Verticals

Energy Storage, Renewable Energy, Clean Manufacturing, Smart Grid

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting, Government Contracts

AI Layer

Non-AI

Keywords

sand batterythermal energy storageheat batterylong-duration energy storageLDESpower-to-heatdistrict heatingheating decarbonizationrenewable energy storageclimatetechgrid balancingindustrial heatP2Hpower-to-heat-to-powerP2H2Pheat-as-a-service

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

Polar Night Energy Comps

Public and private peers based on sector, stage, and business model.

CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

View Full Comps Set

Access detailed peer comparisons, multiples, and valuation benchmarks.

Polar Night Energy Funding Rounds

Historical fundraising activity

RoundDateAmount RaisedValuationInvestorsSources
SeedApr 3, 2024
GrantDec 12, 2023
SeedOct 13, 2021

Key People

Founding team and executive leadership

Markku Ylönen

Chief Technology Officer

Executive Team

Jani Liimatainen

Chief Financial Officer

Executive Team

Liisa Naskali

Chief Operating Officer

Executive Team

Polar Night Energy Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Nov 14, 2025

    Grew 15% QoQ, from 26 to 30 employees.

  • Jul 6, 2024

    Grew 16% QoQ from 19 to 22 employees.

Polar Night Energy Filings

SEC and related filings with document metadata.

TypedDateAmount OfferedAmount SoldFillingPagesDownload
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation

Polar Night Energy Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Polar Night Energy's valuation, stock price, and market status.

Firmographic Details

HeadquartersTampere
Employee Range32
Year Founded2018
Last FundingApr 3, 2024

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.







Disclaimer All investments involve risk, including the risk of loss of principal. You should carefully consider your investment objectives, risks, transaction costs and other expenses before deciding to invest in options, swaps or other investments.This does not constitute an offer by Caplight Technologies, Inc. to sell, or a solicitation of an offer to buy, any securities and may not be used or relied upon in connection with any offer or sale of securities. An offer or solicitation can be made only through the delivery of final offering document(s) and purchase agreement(s), and will be subject to the terms and conditions and risks delivered in such documents. Any securities offered are offered through Caplight Markets LLC, member FINRA/SIPC.