About John Duffy Energy Services
John Duffy Energy Services is a Construction company, headquartered in Newark, with 2 - 10 employees and annual revenue of $5M - $20M.
Welcome to John Duffy Energy Services. The most trusted name in heating, air conditioning and heating oil services in northern & central New Jersey.
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John Duffy Energy Services Company Highlights
Phone Number
(800) 246-xxxx
Corporate Office Address
465 Mulberry Street
Newark, 07114
Website
John Duffy Energy Services Email Format
The most common John Duffy Energy Services email format is [f][last] (ex. jdoe@duffyenergy.com), currently being used by 99% of John Duffy Energy Services business email addresses. There are 3 email formats used by John Duffy Energy Services.
John Duffy Energy Services Org
John Duffy Energy Services has 1 VP, 2 Manager, and 2 Senior employees.
John Duffy Energy Services's Tech Stack
Frequently Asked Questions About
John Duffy Energy Services
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How many senior employees does John Duffy Energy Services have?
John Duffy Energy Services has 5 senior employees that are typically used for decision making.
What email format does John Duffy Energy Services use?
The most common John Duffy Energy Services email format is {f}{last} (e.g. jdoe@duffyenergy.com).
What technologies does John Duffy Energy Services use?
John Duffy Energy Services uses technologies including AddToAny, Amazon S3, and AOS.
How do I contact John Duffy Energy Services?
To contact John Duffy Energy Services, visit duffyenergy.com.
What companies are similar to John Duffy Energy Services?
Companies similar to John Duffy Energy Services include Ahern, McKenney's Inc., and System Inc..
Where is John Duffy Energy Services headquartered?
John Duffy Energy Services is headquartered at 465 Mulberry Street, Newark.
What is the main phone number for John Duffy Energy Services?
The main phone number for John Duffy Energy Services is (800) 246-xxxx.
What is the official website for John Duffy Energy Services?
The official website for John Duffy Energy Services is duffyenergy.com.
What is the annual revenue of John Duffy Energy Services?
The annual revenue of John Duffy Energy Services is $5M - $20M.
How many employees does John Duffy Energy Services have?
John Duffy Energy Services has 2 - 10 employees.
What industry is John Duffy Energy Services in?
John Duffy Energy Services is in the Construction industry.
Last updated: September 28, 2025