![]() ViZn Energy ViZn Energy Systems offers an energy storage solution that is safe, reliable and cost-effective. | ![]() Phinergy Phinergy is a developer of clean and high energy-density systems based on metal-air technology. | ![]() VRB Energy VRB Energy (formerly known as Pu Neng and Prudent Energy) designs and manufactures Vanadium Redox Battery Energy Storage System, an advanced flow battery system. | ![]() CALB CALB Group (中创新航科技集团股份有限公司, also known as China Aviation Lithium Battery) is a company that designs and manufactures battery products. | ![]() Eos Energy Storage Eos Energy Storage is a company that designs and manufactures zinc-based battery energy storage systems. | ![]() NantEnergy NantEnergy (formerly known as Fluidic Energy) is a company developing clean energy storage solutions. | ||
Founding Date | Founding Date 2009 | Founding Date 2010 | Founding Date 2006 | Founding Date 2007 | Founding Date 2007 | Founding Date 2008 | Founding Date 2006 |
Type | Type Private | Type Private | Type Private | Type Public | Type Private | Type Subsidiary | Type Private |
Tags | |||||||
Locations | Locations Columbia Falls, US HQ | Locations Lod, IL HQ | Locations Tongzhou, CN HQ Vancouver, CA | Locations Pittsburgh, US HQ Mount Pleasant, US | Locations Edison, US HQ | Locations Scottsdale, US HQ | |
Employees | Employees 363% decrease | Employees 129% increase | Employees 34 | Employees 10,534 | Employees 632% increase | Employees 3487% increase | Employees 10 |
Operating ⚠ | |||||||
Patent Applications | Patent Applications 1 (Feb, 2018) | Patent Applications N/A | Patent Applications N/A | Patent Applications N/A | Patent Applications N/A | Patent Applications 4 (Jul, 2020) | Patent Applications N/A |
Patents Issued | Patents Issued 6 (Feb, 2018) | Patents Issued N/A | Patents Issued N/A | Patents Issued N/A | Patents Issued 11 (Feb, 2018) | Patents Issued 8 (Jul, 2020) | Patents Issued N/A |
Funding | |||||||
Latest funding round | Latest funding round $ 15m (almost 8 years ago) | Latest funding round $ 50m (over 10 years ago) | Latest funding round $ 29.5m (over 14 years ago) | Latest funding round N/A | Latest funding round $ 33.2m (about 10 years ago) | Latest funding round N/A | Latest funding round $ 7m (over 9 years ago) |
Total funding raised | Total funding raised $ 63.9m | Total funding raised $ 50m | Total funding raised $ 51.5m | Total funding raised N/A | Total funding raised $ 178.2m | Total funding raised $ 87.8m | Total funding raised $ 27m |

Phinergy is a developer of clean and high energy-density systems based on metal-air technology.
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VRB Energy (formerly known as Pu Neng and Prudent Energy) designs and manufactures Vanadium Redox Battery Energy Storage System, an advanced flow battery system.
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CALB Group (中创新航科技集团股份有限公司, also known as China Aviation Lithium Battery) is a company that designs and manufactures battery products.
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Aquion Energy is a company that provides energy storage solutions.
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