SolarMantle

Private

Somerville, MassachusettsEnergy & Sustainabilityhttps://solarmantle.com/

Last Round

Grant

Feb 4, 2026

Total Funding Raised

$355,000

Momentum

Top 50%

of companies Caplight tracks

Company Overview

SolarMantle is a climate-tech company that develops passive radiative cooling thin film materials designed to reduce heat absorption and energy consumption in buildings, data centers, and transportation infrastructure.

Sector

Energy & Sustainability

Verticals

Advanced Materials, Energy Management, Green Building

Business Model

B2B

Customer Profile

Hardware Sales

AI Layer

Non-AI

Keywords

passive radiative coolingPDRCthermal managementcool roofnanoporous polymerenergy efficiencyzero-power coolingclimate techthin filmpassive coolingHVAC alternativeinfrastructure coolingmaterials sciencegreen buildingPFAS-free

Historical Pricing

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Caplight Momentum Score

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SolarMantle Comps

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

SolarMantle comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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SolarMantle Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Grant	Feb 4, 2026
Grant	Sep 1, 2025
Accelerator	Jan 1, 2025

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Key People

Founding team and executive leadership

Sanjeev Kalyanaraman

Chief Executive Officer

Executive Team

SolarMantle Investors

Notable investors and investment history

SolarMantle investors
Investor	Rounds
Illinois Department of Commerce and Economic Opportunity	Grant

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Market signals

Structured signals derived from secondary market and firmographic data.

May 17, 2026
Monthly visitors grew 101% MoM.

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SolarMantle Filings

SEC and related filings with document metadata.

Data table
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SolarMantle Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersSomerville, Massachusetts

Employee Range3

Year Founded2025

Last FundingFeb 4, 2026

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