SustainX logo — Global provider of grid-scale energy storage solutions for s...

SustainX

Global provider of grid-scale energy storage solutions for supporting a cleaner and more efficient electric grid

Founded 2007 United States Seabrook, United States 12 employees Merged Total: $13.60M Energy, Clean Energy +1

General Information

Company Name SustainX
Founded Year 2007
Location United States Seabrook, United States
Founders / Decision Makers
Team member
Employees 12
Industries Energy, Clean Energy, Energy Storage
Funding Stage Merged
Business Model B2B, B2G
Revenue Model One Time Purchase, Leasing/Rental, Product Sales
Social

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About SustainX

SustainX, founded in 2007 and headquartered in the United States, is positioned at the forefront of the Energy, Clean Energy, and Energy Storage industries. The company specializes in an innovative energy storage solution known as isothermal compressed air energy storage (ICAES™). This technology offers a sustainable, site-flexible, and zero-emissions storage option by eliminating the need for caverns or natural gas combustion.

SustainX's approach is rooted in patent-protected innovations that integrate seamlessly with proven industrial methodologies. Its technology employs a mechanical drivetrain leveraging an electric machine and crankshaft, ensuring a long operational lifespan and significantly reducing the levelized cost of energy (LCOE) compared to other storage solutions.

The company's last known investment was a $5.60M Venture Round in May 2011, backed by General Catalyst. This signals potential for future investment opportunities as the market for zero-emission energy solutions continues to expand.

Business keywords: Energy Storage, Grid Stabilization, Isothermal CAES, Industrial Energy Management, Transmission Asset Utilization, Zero Emissions, Electric Energy Storage, Compressed Air Storage, Energy Conversion System, Mechanical Drivetrain, Low Levelized Cost of Energy, Renewable Energy Support, Commercial Energy Management, Industrial Energy Optimization

Services & Products

Domain name sales
Domain leasing
Secure transaction handling
Digital asset transfers

Target Customers

Businesses seeking domain names Entrepreneurs looking for digital assets Investors interested in domain acquisition Individuals wanting to lease domain names

Funding Rounds & Investors (4)

View All
Funding Stage Amount Investors Lead Investors Date
Merger Undisclosed 1
General Compression
01 Mar 2015
Late VC $5.60M 1
General Catalyst
01 May 2011
Early VC $4.00M -
01 Aug 2009
Early VC $4.00M -
01 Apr 2009

SustainX Alternatives & Competitors

View All Alternatives
SustainX vs
Alumina Energy LLC
Alumina Energy LLC United States

US based developer of energy storage systems for distributed and utility energy generation systems.

Seed
2 employees
Energy, Energy Storage
SustainX vs
TerraStor
TerraStor United States

Grid-scale Energy Storage for a Carbon-Free Future

Seed
2 employees
Energy, Energy Storage
SustainX vs
Lightsource Labs
Lightsource Labs United Kingdom

Smart energy technology for a zero-carbon world

3 employees
Energy, Renewable Energy

FAQ About SustainX

Global provider of grid-scale energy storage solutions for supporting a cleaner and more efficient electric grid
SustainX was founded in 2007.
SustainX is headquartered in Seabrook, United States.
SustainX operates in Energy, Clean Energy and Energy Storage. Its work centres on Energy Storage, Grid Stabilization, Isothermal CAES and Industrial Energy Management. Its customers include Businesses seeking domain names, Entrepreneurs looking for digital assets and Investors interested in domain acquisition.
SustainX has a B2B and B2G business model. Its revenue comes from One Time Purchase, Leasing/Rental and Product Sales.
SustainX has approximately 12 employees.
SustainX has completed 4 funding rounds, raising a total of $13.60M. The latest funding stage is Merged.
SustainX offers: Domain name sales, Domain leasing, Secure transaction handling, Digital asset transfers.
Top alternatives and competitors to SustainX include Alumina Energy LLC, TerraStor, Lightsource Labs, Enline Energy Solutions, Hydrostor. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
SustainX and Alumina Energy LLC are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for SustainX, https://bouncewatch.com/company/sustainx, updated 20 July 2026. When citing, please name BounceWatch and link this page.

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