Insights

Hydrogen leadership Proton OnSite is a global leader in hydrogen energy and PEM electrolysis systems with a long track record since 1996, presenting a strong credibility base for upsell of advanced gas generation technologies and integrated hydrogen solutions to current customers in energy, defense, aerospace and renewables.

Expanded offerings Recent diversification into hydrogen control systems, nitrogen and air generators, and packaged solutions with tanks and compressors broadens addressable markets to power plants, semiconductor manufacturers, and laboratories—opportunity to cross-sell complete gas generation and gas handling packages.

DOE & grants Historical DOE funding of multiple grants for manufacturing and component development signals a government-backed validation of technology and potential for future funded projects or cost-shared initiatives that sales teams can leverage when engaging prospects with public-sector or utility interest.

Strategic partnerships Collaborations with entities like Ecolectro and engagement with national labs underscore a network-driven sales path, suggesting opportunities to partner on R&D projects, pilot deployments, and joint ventures in advanced water-splitting technologies.

Global deployments With installations on every continent and a trusted status with military, aerospace, fueling and renewable sectors, there is a strong cross-industry demand signal for scalable gas generation capacity, offering upsell to larger systems, service contracts, and extended support for fleet-wide deployments.

Proton OnSite Tech Stack

Proton OnSite uses 8 technology products and services including CREO, yepnope.js, Modernizr, and more. Explore Proton OnSite's tech stack below.

  • CREO
    E-commerce
  • yepnope.js
    Javascript Frameworks
  • Modernizr
    Javascript Libraries
  • HeadJS
    Javascript Libraries
  • Microsoft
    Miscellaneous
  • Microsoft Office
    Office Suites
  • ANSYS
    Software Development
  • Adobe Fonts
    Web Fonts

Media & News

Proton OnSite's Email Address Formats

Proton OnSite uses at least 1 format(s):
Proton OnSite Email FormatsExamplePercentage
FLast@protononsite.comJDoe@protononsite.com
82%
LastF@protononsite.comDoeJ@protononsite.com
10%
First.Last@protononsite.comJohn.Doe@protononsite.com
7%
FL@protononsite.comJD@protononsite.com
1%

Frequently Asked Questions

What is Proton OnSite's phone number?

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You can contact Proton OnSite's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Proton OnSite's official website and social media links?

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Proton OnSite's official website is protononsite.com and has social profiles on LinkedIn.

What is Proton OnSite's SIC code NAICS code?

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Proton OnSite's SIC code is 3599 - Industrial and Commercial Machinery and Equipment, Not Elsewhere Classified NAICS code is 211 - Oil and Gas Extraction.

How many employees does Proton OnSite have currently?

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As of July 2026, Proton OnSite has approximately 67 employees across 4 continents, including North AmericaAsiaSouth America. Key team members include Director Of Corporate Marketing: C. V.Product Manager, Gulf Area And Iraq: A. A.Senior Manager: V. T.. Explore Proton OnSite's employee directory with LeadIQ.

What industry does Proton OnSite belong to?

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Proton OnSite operates in the Oil & Energy industry.

What technology does Proton OnSite use?

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Proton OnSite's tech stack includes CREOyepnope.jsModernizrHeadJSMicrosoftMicrosoft OfficeANSYSAdobe Fonts.

What is Proton OnSite's email format?

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Proton OnSite's email format typically follows the pattern of FLast@protononsite.com. Find more Proton OnSite email formats with LeadIQ.

How much funding has Proton OnSite raised to date?

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As of July 2026, Proton OnSite has raised $3.3M in funding. The last funding round occurred on Mar 31, 2020.

When was Proton OnSite founded?

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Proton OnSite was founded in 1996.
Proton OnSite logo

Proton OnSite

Oil & EnergyConnecticut, United States51-200 Employees

Proton OnSite designs and delivers hydrogen production and gas-generation systems for a range of industrial needs. The equipment is deployed globally, with installation and ongoing support ensuring reliable operation across continents, and the company has expanded its offerings to include broader gas generation and packaged solutions.

Headquartered in Wallingford, Connecticut, the company has operated since 1996, serving power plants, semiconductor manufacturers and laboratories. It maintains relationships with the U.S. military, aerospace, fueling and renewable energy industries, reflecting a diversified customer base across defense and energy markets. Since 2017, Proton OnSite has been part of Nel Hydrogen US, following Nel ASA's acquisition of Proton Energy Systems.

Section iconCompany Overview

Phone number
SIC Code
3599 - Industrial and Commercial Machinery and Equipment, Not Elsewhere Classified
NAICS Code
211 - Oil and Gas Extraction
Founded
1996
Employees
51-200

Section iconFunding & Financials

  • $3.3M

    Proton OnSite has raised a total of $3.3M of funding over 4 rounds. Their latest funding round was raised on Mar 31, 2020as a grant.

  • $10M$25M

    Proton OnSite's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $3.3M

    Proton OnSite has raised a total of $3.3M of funding over 4 rounds. Their latest funding round was raised on Mar 31, 2020as a grant.

  • $10M$25M

    Proton OnSite's revenue is estimated to be in the range of $10M$25M

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