What departments does Proton OnSite have?

Proton OnSite has employees across 10 departments including Marketing, Research, Manufacturing, Product Management, Engineering.

What is the largest department at Proton OnSite?

The largest department at Proton OnSite is Engineering with 9 employees.

Where are Proton OnSite employees located globally?

Proton OnSite has employees across 4 continents and 5 countries including Nigeria, China, Saudi Arabia, United States Of America, Brazil.

How has Proton OnSite's team size changed over time?

Proton OnSite's team has decreased from approximately 89 to 37 employees based on available data.

Proton OnSite Employee Directory

Oil and GasConnecticut, 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.

Proton OnSite Global Highlights

North America
41

United States Of America
41

Asia
3

China
2
Saudi Arabia
1

South America
2

Brazil
2

Africa
1

Nigeria
1

Proton OnSite's Leadership

C. V.
Director Of Corporate Marketing
Mobile Phone
Email
K. A.
Director Of Research
Mobile Phone
Email
B. C.
Manufacturing Manager, Cell Stacks
Mobile Phone
Email
A. A.
Product Manager, Gulf Area And Iraq
Mobile Phone
Email
C. C.
Manufacturing Manager Systems
Mobile Phone
Email
E. S.
Technical Service Manager
Mobile Phone
Email
R. S.
Eastern Regional Territory Manager
Mobile Phone
Email
V. T.
Senior Manager
Mobile Phone
Email

Proton OnSite Employee Metrics

100%

50%

0%

2026

2025

Engineering
Finance
Sales
Marketing
Program & Project Management
Other
Customer Success
Accounting
Manufacturing
Administrative
Community & Social Services
Entrepreneurship
Arts & Design
Business
Civil Engineering & Construction
Business Development

Contact profiles from Proton OnSite

Name

Title

Contact Info

Location

Last Update

W. G.
Principal Engineer
Mobile Phone
Email
United StatesConnecticut
Oct 22, 2024
E. D.
Senior Engineering Technician
Mobile Phone
Email
United StatesConnecticut
May 29, 2026
K. G.
Inside Sales Representative
Mobile Phone
Email
United StatesConnecticut
Sep 08, 2025
J. S.
Field Services Engineer
Mobile Phone
Email
United StatesNew York
Oct 19, 2025
L. D. M.
Executive Assistant
Mobile Phone
Email
United StatesConnecticut
Oct 26, 2025
K. P.
I.T. Infrastructure Systems Engineer
Mobile Phone
Email
United StatesConnecticut
Oct 21, 2024
P. L.
Manufacturing Engineer
Mobile Phone
Email
United StatesConnecticut
May 28, 2026
J. M.
Piping Designer
Mobile Phone
Email
Dec 31, 2025
A. N.
Chemical Engineer
Mobile Phone
Email
UNITED STATES
Oct 23, 2024
A. M.
Electrical Engineer
Mobile Phone
Email
Oct 17, 2024

Frequently Asked Questions

What is Proton OnSite known for?

Proton OnSite was founded in 1996 operates in the Oil and Gas industry. The company's main headquarters is located in 10 Technology Drive Wallingford, Connecticut 06492 United States; you can contact the main corporate office by phone at

+1-203-678-****

. Explore Proton OnSite's company overview page for more information.

What is Proton OnSite's most common email format?

Proton OnSite employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Proton OnSite email formats with LeadIQ.

How many employees does Proton OnSite have currently?

Proton OnSite has approximately 67 employees as of February 2026. These team members are located across 4 continents, including North AmericaAsiaSouth America.

Who are Proton OnSite's key employees and leadership?

As of February 2026, Proton OnSite's key employees include:

Director Of Corporate Marketing: C. V.
Director Of Research: K. A.
Manufacturing Manager, Cell Stacks: B. C.
Product Manager, Gulf Area And Iraq: A. A.
Manufacturing Manager Systems: C. C.

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Proton OnSite Employee Directory

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