What departments does Greencastle Consulting have?

Greencastle Consulting has employees across 3 departments including Entrepreneurship, Human Resources, Consultant.

What is the largest department at Greencastle Consulting?

The largest department at Greencastle Consulting is Consultant with 15 employees.

Where are Greencastle Consulting employees located globally?

Greencastle Consulting has employees across 2 continents and 2 countries including United Kingdom Of Great Britain And Northern Ireland, United States Of America.

How has Greencastle Consulting's team size changed over time?

Greencastle Consulting's team has decreased from approximately 93 to 85 employees based on available data.

Greencastle Consulting Employee Directory

Business Consulting and ServicesPennsylvania, United States51-200 Employees

Greencastle Consulting is a mid-sized firm in the business consulting and services sector, based in Malvern, Pennsylvania. Founded in 1997 by veterans, it remains 100% veteran-owned and operated. The company focuses on strategy execution, operations consulting, and data analytics, offering tailored solutions to address specific challenges and support durable improvements across the organization. Its work emphasizes cross-functional collaboration and a holistic view of culture, goals, and unique constraints to uncover opportunities and drive measurable results. The firm has earned recognition such as placement on the Inc. 5000 list and awards recognizing its veteran-owned status and workplace excellence. In January 2026, leadership changes named Eric Diamond as CEO and Adam Holstein as President.

Greencastle Consulting Global Highlights

North America
162

United States Of America
162

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

Greencastle Consulting's Leadership

P. C.
Chief Executive Officer
Mobile Phone
Email
H. S.
President
Mobile Phone
Email
J. S.
Vice President
Mobile Phone
Email
A. M.
Senior Manager, Hr & Admin
Mobile Phone
Email
A. D.
Senior Management Consultant
Mobile Phone
Email
L. G.
Consultant
Mobile Phone
Email
M. L.
Consultant
Mobile Phone
Email
T. A.
Consultant
Mobile Phone
Email

Greencastle Consulting Employee Metrics

100%

50%

0%

2026

2025

Consultant
Analytics
Business
Community & Social Services
Human Resources
Other
Education

Contact profiles from Greencastle Consulting

Name

Title

Contact Info

Location

Last Update

H. S.
President
Mobile Phone
Email
Oct 16, 2024
P. C.
Chief Executive Officer
Mobile Phone
Email
United KingdomEngland
Jul 28, 2023
J. S.
Vice President
Mobile Phone
Email
Apr 12, 2024
A. M.
Senior Manager, Hr & Admin
Mobile Phone
Email
May 29, 2026
A. D.
Senior Management Consultant
Mobile Phone
Email
Nov 11, 2025
L. G.
Consultant
Mobile Phone
Email
Jun 27, 2026
M. L.
Consultant
Mobile Phone
Email
Jun 27, 2026
T. A.
Consultant
Mobile Phone
Email
Jun 02, 2026
S. W.
Associate Management Consultant
Mobile Phone
Email
Jun 25, 2026
J. E.
Consultant
Mobile Phone
Email
Jun 27, 2026

Frequently Asked Questions

What is Greencastle Consulting known for?

Greencastle Consulting was founded in 1997 operates in the Business Consulting and Services industry; you can contact the main corporate office by phone at

+1-610-640-****

. Explore Greencastle Consulting's company overview page for more information.

What is Greencastle Consulting's most common email format?

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

How many employees does Greencastle Consulting have currently?

Greencastle Consulting has approximately 129 employees as of July 2026. These team members are located across 2 continents, including North AmericaEurope.

Who are Greencastle Consulting's key employees and leadership?

As of July 2026, Greencastle Consulting's key employees include:

Chief Executive Officer: P. C.
President: H. S.
Vice President: J. S.
Senior Manager, Hr & Admin: A. M.
Senior Management Consultant: A. D.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking

Greencastle Consulting Employee Directory

Find Greencastle Consulting employees' phone numbers or email addresses

Name search is limited — try advanced search instead