Skip to main content
Caplight Logo









AmpliSi

AmpliSi

Private
SheffieldEnterprise Softwarehttps://www.amplisi.com/

Last Round

Pre Seed

Mar 12, 2026

Total Funding Raised

$2.7M

Momentum

Top 5%

of companies Caplight tracks

Company Overview

AmpliSi is an energy storage company that develops proprietary porous silicon anode materials designed to replace graphite in lithium-ion batteries.

Sector

Enterprise Software

Verticals

Semiconductors, Computing Hardware

Business Model

B2B

Customer Profile

Services & Consulting, Data as a Service

AI Layer

Non-AI

Keywords

silicon anodebattery materialsmagnesiothermic processenergy storagebattery techanode materialsporous siliconnext-gen batteriesmaterial sciencedeep techbattery supply chainEV battery

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.

AmpliSi Comparables

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

AmpliSi comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Ionobell
34%

AmpliSi Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Pre SeedMar 12, 2026

Key People

Founding team and executive leadership

Ruth Sayers

Chief Executive Officer

Executive Team

Gwen Chimonides

Chief Technology Officer

Executive Team

AmpliSi Investors

Notable investors and investment history

AmpliSi investors
InvestorRounds
Clean Growth Investment ManagementPre Seed
Northern GritstonePre Seed
Cambridge Future TechPre Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Sep 24, 2026

    Grew 50% QoQ from 6 to 9 employees.

  • Sep 2, 2026

    Grew 125% QoQ, from 4 to 9 employees.

AmpliSi Filings

Explore SEC and related filing metadata, where available.

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

Filing documents are not displayed on this public page. Request access to learn about available coverage.

Request access

Frequently Asked Questions

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

Is AmpliSi a public or private company?

AmpliSi is a private company.

What is the current stock price of AmpliSi?

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

How much is AmpliSi worth (valuation)?

Valuation information for AmpliSi is not publicly available.

Can I buy AmpliSi stock?

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

When was AmpliSi's last funding round?

AmpliSi's most recent funding round was Pre Seed on March 12, 2026.

Who are the main investors in AmpliSi?

Key investors in AmpliSi include Clean Growth Investment Management, Northern Gritstone.

Will AmpliSi IPO soon?

No public IPO plans have been announced for AmpliSi.

How can I track AmpliSi secondary market activity?

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

Firmographic Details

HeadquartersSheffield
Employee Range9
Year Founded2025
Last FundingMar 12, 2026

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.

See something wrong or outdated?