What departments does D.E. Duffey have?

D.E. Duffey has employees across 2 departments including Program & Project Management, Sales.

What is the largest department at D.E. Duffey?

The largest department at D.E. Duffey is Program & Project Management with 1 employees.

Where are D.E. Duffey employees located globally?

D.E. Duffey has employees across 1 continents and 1 countries including United States Of America.

How has D.E. Duffey's team size changed over time?

D.E. Duffey's team has grown from approximately 2 to 3 employees based on available data.

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D.E. Duffey Employee Directory

Oil and GasPennsylvania, United States2-10 Employees

D.E. Duffey, established in 1898 and based in Plymouth Meeting, Pennsylvania, operates as a family-owned oil and gas service provider focused on building long-term relationships with customers. The company delivers heating oil and a range of services including system selection, installation, maintenance, repairs, and service contracts, emphasizing dependable and consistent support for its clients. Serving the suburban Philadelphia area, it positions itself as a local, service-oriented business rather than a quick-transaction operation. With a small team, the firm emphasizes continuity, trust, and tailored assistance to meet customers’ heating and cooling needs over time.

D.E. Duffey Global Highlights

North America
9

United States Of America
9

D.E. Duffey's Leadership

T. C.
Project Manager
Mobile Phone
Email
P. D.
Sales Associate
Mobile Phone
Email
D. D.
Mobile Phone
Email
J. H.
Mobile Phone
Email

D.E. Duffey Employee Metrics

100%

50%

2026

2025

Accounting
Administrative
Analytics
Arts & Design
Banking
Other
Program & Project Management

Contact profiles from D.E. Duffey

Name

Title

Contact Info

Location

Last Update

T. C.
Project Manager
Mobile Phone
Email
United StatesPennsylvania
Jun 24, 2026
P. D.
Sales Associate
Mobile Phone
Email
United StatesGeorgia
Mar 26, 2026
D. D.
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
J. H.
Mobile Phone
Email
UNITED STATES
Mar 07, 2023

Frequently Asked Questions

What is D.E. Duffey known for?

D.E. Duffey was founded in 1898 operates in the Oil and Gas industry. The company's main headquarters is located in 1982 Butler Pike po Box 763 Plymouth Meeting, Pennsylvania 19462 United States; you can contact the main corporate office by phone at

+1-610-940-****

. Explore D.E. Duffey's company overview page for more information.

What is D.E. Duffey's most common email format?

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

How many employees does D.E. Duffey have currently?

D.E. Duffey has approximately 6 employees as of June 2026. These team members are located across 1 continents, including North America.

Who are D.E. Duffey's key employees and leadership?

As of June 2026, D.E. Duffey's key employees include:

Project Manager: T. C.
Sales Associate: P. D.
: D. D.
: J. H.

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D.E. Duffey Employee Directory

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