Overview
Salaries
Products
People
Growth
Offices
Financials

Funding and backers

Total raised
$32M
2 rounds on record
Latest round
$14.5M
Venture round · Oct 2024 · 23 mo ago
Team
19
US Form 5500 (plan participants) · Dec 2025
Backers
1
Energy Impact Partners
The money's age
Due for its next round
23 months since the last round · not hiring
Momentum
0/100
no fresh signals
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 3, 2024 Raised a round Venture round $14.5M · SEC Form D Oct 21, 2022 Raised a round Venture round $17.5M · SEC Form D
Funding rounds
RoundDateAmountInvestorsSource
Venture round Oct 2024 $14.5M — SEC Form D
Venture round Oct 2022 $17.5M — SEC Form D
Registers and programsofficial lists and records that name the company
Legal entity Stone Mountain Technologies, Inc. SEC Form D
Founders and leadersfrom filings, registers and the company's site
Sandra GarrabrantExecutive OfficerSEC Form D
Michael GarrabrantExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
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Overview

Ultra-efficient, low-emission gas heat pump with zero GWP refrigerants. Ideal for homes and commercial use. Reliable comfort, reduced impact.

People

Sandra Garrabrant
Executive Officer
Michael Garrabrant
Executive Officer, Director
David Martin
Director
Matthew Bisgyer
Director
Morrison Carter
Director
James Laurito
Director
Lindsay Luger
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Johnson City United States
HQ
50-200 est. staff

Financials

Total raised
$32M
Latest round
Venture - Series Unknown
Funding rounds
2
Funding rounds
Round Announced Amount
Venture - Series Unknown 2024 $14.5M Details
Venture - Series Unknown 2022 $17.5M Details