About Protonex
Protonex is an Energy & Utilities company based in Southborough (United States) founded in 2000, and was acquired by Ballard in June 2015. Integrated tactical systems are developed for military and first responders. Protonex has raised $25.86 million across 9 funding rounds from investors including Parker, Ballard and Solstice Capital. Protonex offers products and services including Batlskin® Helmets, Power & Data Systems, and Nerv Centr® PRODUCT RANGE. Its focus areas include Energy Tech, Energy Storage Tech, Fuel Cell and Proton Exchange Membrane (PEM). Its legal entity is PROTONEX TECHNOLOGY CORPORATION. Its competitors include Plug Power and Ballard.
Company details
Founded in 2000 and based in Southborough, United States, Protonex operates in the defense sector. Integrated tactical systems are designed and manufactured, including protective helmet solutions, power and data management tools, and technologies for situational awareness. Operations focus on customizable products for threat mitigation and efficient battlefield support, with testing conducted through a dedicated Warfighter Lab to ensure reliability in demanding environments.
Products & Services of Protonex
Protonex offers a comprehensive portfolio of products and services, including Batlskin® Helmets, Power & Data Systems, and Nerv Centr® PRODUCT RANGE.
Customizable helmets for military mission needs.
Intelligent solutions for battlefield power and data.
Integrated products for tactical power and data handling.
Apps and channels of Protonex
its YouTube channel Galvion has 3.98K subscribers and 14 videos.
Videos from Protonex
The most watched videos on Protonex's YouTube channel, Galvion (3.98K subscribers). Click a video to play it here.
More on Galvion.
Funding Insights of Protonex
Protonex has successfully raised a total of $25.86M across 9 strategic funding rounds. The most recent funding activity was a Series D round of $200 thousand completed in October 2013. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $25.86M
- Total Rounds 9
- Last Round Series D — $200,000
- Investors Count 8
All 9 funding rounds of Protonex with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Oct 2013 | $200,000 | Series D | – | – | – |
| Sep 2013 | Series D | – | – | ||
| Mar 2013 | $2M | Debt – Conventional | – | – | |
| May 2011 | $654,344 | Grant | – | – | |
| Apr 2007 | $8M | Series C | – | – | – |
| Jul 2006 | $6.66M | Series C | – | – | – |
| Jun 2005 | $2M | Series B | – | – | |
| Apr 2005 | $9M | Series B | – | – | |
| Mar 2004 | Series A | – | – |
9 investors in total: 9 institutional.
Investors in Protonex
Protonex has secured backing from 9 investors, including venture fund and institutional investors. Prominent investors backing the company include Parker, Ballard and Solstice Capital.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital firm | iqt.org | Washington, Dc, United States | ||
| windsailcapital.com | ||||
Early-stage venture capital is invested in US technology startups. | vcfne.com | Wellesley, United States | ||
Yellowstone Capital Partners is engaged in private equity investments. | 1993 | yellowstonecapital.com | Houston, United States | |
| conduit-ventures.com | ||||
US focused seed & early stage Micro VC firm | 1995 | solcap.com | Salem, United States | |
Motion and control technologies are distributed globally by Parker. | 1917 | parker.com | United States | |
Administers health care and support for military personnel and operations. | health.mil | Falls Church, United States | ||
Manufacturer of hydrogen fuel cells | 1979 | ballard.com | United States |
Investor details for Protonex
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
Timeline of Protonex
4 dated milestones of Protonex across 15 years, from founding to its latest funding, stage changes and deals.
- Founded Protonex is founded.
- Funding First funding round.
- Funding Latest funding round, Series D, of $200K.
- Exit Acquired by Ballard.
Competitors of Protonex
Protonex has 2 listed competitors in our database. They include Plug Power and Ballard.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| plugpower.com | 1997 | United States | 2,449 | Hydrogen-based fuel cells are manufactured for power applications. | ||
| ballard.com | 1979 | United States | Manufacturer of hydrogen fuel cells |
Detailed competitors of Protonex
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
- Operating metrics
- Benchmarks
- Competitive positioning
Verified entity values are shown only after access is granted.
Web traffic of Protonex
Websites that share an audience with Protonex (protonex.com).
Websites whose visitors overlap most with Protonex. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| adaptivematerials.com | 100% | View details | |||
| profactor.at | 91% | 2.6K | #5,936,629 | View details | |
rixan.com | rixan.com | 91% | – |
Top companies in Energy Storage Systems
3 companies that operate in the same segment as Protonex (Energy Storage Systems) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Electric buses and charging systems are manufactured for fleets. | 2004 | Burlingame, California, United States | USD 857.79 M | USD 309.36 M | 418 | |
Silicon-based solar PV modules are manufactured for diverse applications. | 1985 | San Jose, California, United States | USD 171.73 M | USD 300 M | 600 | |
Iron-air energy storage systems are developed for renewable energy projects. | 2009 | Somerville, Massachusetts, United States | USD 2 B | 902 |
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Related news about Protonex
Complete news archive for Protonex
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Frequently Asked Questions about Protonex
Protonex was founded in 2000 and raised its 1st funding round 4 years after it was founded.
Protonex is headquartered in Southborough, United States. It is registered at Southborough, Massachusetts, United States.
Protonex is a funded company, having raised a total of $25.86M across 9 funding rounds to date.
Founded in 2000 and based in Southborough, United States, Protonex operates in the defense sector. Integrated tactical systems are designed and manufactured, including protective helmet solutions, power and data management tools, and technologies for situational awareness. Operations focus on customizable products for threat mitigation and efficient battlefield support, with testing conducted through a dedicated Warfighter Lab to ensure reliability in demanding environments.
Protonex's top competitors include Plug Power and Ballard.
Protonex offers Batlskin® Helmets, Power & Data Systems, and Nerv Centr® PRODUCT RANGE.
Protonex has 9 investors. Key investors include Parker, Ballard, Solstice Capital, In-Q-Tel, and Windsail Capital Group.
Protonex operates through Protonex Technology Corporation.
Yes. Protonex was acquired by Ballard in June 2015.