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Lightsage

Lightsage

Private
San Francisco, CaliforniaEnergy & Sustainabilityhttps://lightsage.com/

Last Round

Seed

Sep 8, 2026

Total Funding Raised

$4M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

Lightsage is a software company that provides an infrastructure platform for the agent economy, helping businesses optimize their discoverability, usability, and payment readiness for AI agents.

Sector

Energy & Sustainability

Verticals

Energy Management, Smart Buildings, Facility Management, Green Building

Business Model

B2B

Customer Profile

Subscription SaaS

AI Layer

Infrastructure

Keywords

agent-led growthagent economyAI agent platformAI agent securityagent experience platformAI infrastructureB2B SaaSAPI optimizationdeveloper toolsAI analyticsusage-based billingAI agent discoveryvibe coding

Historical Pricing

Historical view of private secondary pricing and transaction trends.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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Track how buyer interest and sentiment changes over time.

Lightsage Comparables

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

Lightsage comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
LightStanza
82%
Revalize
73%
Acuity Inc.
72%

Lightsage Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedSep 8, 2026

Key People

Founding team and executive leadership

Sean Er

Co-Founder & CTO

Founding Team

Jun Liang LEE

Cofounder & CEO

Founding Team

Lightsage Investors

Notable investors and investment history

Lightsage investors
InvestorRounds
Nexus Venture PartnersSeed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Oct 12, 2026

    Open roles increased by 200% to 4 positions.

  • Sep 8, 2026

    $4M round led by Nexus Venture Partners

Recent news

Latest coverage and updates

  • is_developingSep 8, 2026

    Lightsage, Inc. is developing Agent-Led Growth platform on Sep 8th '26.

  • receives_financingSep 8, 2026

    Lightsage, Inc. received financing of $4M in Seed on Sep 8th '26.

Lightsage Filings

Explore SEC and related filing metadata, where available.

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

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Frequently Asked Questions

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

Is Lightsage a public or private company?

Lightsage is a private company.

What is the current stock price of Lightsage?

Lightsage is a private company with no public stock price. Caplight tracks Lightsage's secondary market activity and provides MarketPrice™ estimates to Caplight users.

How much is Lightsage worth (valuation)?

Valuation information for Lightsage is not publicly available.

Can I buy Lightsage stock?

Lightsage shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Lightsage's last funding round?

Lightsage's most recent funding round was Seed on September 8, 2026.

Who are the main investors in Lightsage?

Key investors in Lightsage include Nexus Venture Partners.

Will Lightsage IPO soon?

No public IPO plans have been announced for Lightsage.

How can I track Lightsage secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Lightsage's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersSan Francisco, California
Employee Range2
Year Founded2026
Last FundingSep 8, 2026

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