O'Brien Greene & Co. Employee Directory

Q: What is O'Brien Greene & Co. known for?

O'Brien Greene & Co. was founded in 1969. O'Brien Greene & Co. operates in the Investment Management industry.

Q: How many employees does O'Brien Greene & Co. have currently?

O'Brien Greene & Co. has approximately 4 employees.

Q: Who are O'Brien Greene & Co.'s key employees and leadership?

O'Brien Greene & Co.'s key employees include: President And Ceo: M. O., Chief Compliance Officer: E. O., President & Chief Investment Officer: M. O..

Investment ManagementPennsylvania, United States2-10 Employees

Since 1969, the investment advisory firm of O’Brien Greene & Co. has provided independent investment management to a diverse clientele. Individuals, families, trusts, and retirement plans make up the majority of our clients, though we have also served insurance companies, charitable endowments, credit unions, and banks. 

Our philosophy is straightforward: we seek the preservation and growth of capital through good and bad markets. The firm manages approximately $400 million in separate account portfolios of individual stocks and bonds, as well as a small-cap stock limited partnership. Each client receives an unusually high level of personal attention.

Find O'Brien Greene & Co. employees' phone numbers or email addresses

O'Brien Greene & Co. Global Highlights

North America
8

United States Of America
8

O'Brien Greene & Co.'s Leadership

E. O.
Chief Compliance Officer
Mobile Phone
Email
M. O.
President And Ceo
Mobile Phone
Email
M. O.
President & Chief Investment Officer
Mobile Phone
Email
P. D.
Vice President
Mobile Phone
Email
E. K.
Operations Manager
Mobile Phone
Email
S. S.
Portfolio Manager/Securities Analyst
Mobile Phone
Email
L. O. B.
Media
Mobile Phone
Email
D. N.
Securities Trader/Dir. Operations
Mobile Phone
Email

Contact profiles from O'Brien Greene & Co.

Name

Title

Contact Info

Location

Last Update

M. O.
President & Chief Investment Officer
Mobile Phone
Email
United StatesPennsylvania
Nov 11, 2025
M. O.
President And Ceo
Mobile Phone
Email
United StatesPennsylvania
Nov 10, 2025
E. O.
Chief Compliance Officer
Mobile Phone
Email
UNITED STATES
Mar 08, 2023
P. D.
Vice President
Mobile Phone
Email
United StatesNew Jersey
Aug 10, 2025
E. K.
Operations Manager
Mobile Phone
Email
United StatesPennsylvania
Sep 12, 2024
S. S.
Portfolio Manager/Securities Analyst
Mobile Phone
Email
Jul 19, 2023
L. O. B.
Media
Mobile Phone
Email
Oct 16, 2024
D. N.
Securities Trader/Dir. Operations
Mobile Phone
Email
United StatesDelaware
Oct 19, 2025

Frequently Asked Questions

What is O'Brien Greene & Co. known for?

O'Brien Greene & Co. was founded in 1969 operates in the Investment Management industry; you can contact the main corporate office by phone at

+1-610-891-****

. Explore O'Brien Greene & Co.'s company overview page for more information.

What is O'Brien Greene & Co.'s most common email format?

O'Brien Greene & Co. employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more O'Brien Greene & Co. email formats with LeadIQ.

How many employees does O'Brien Greene & Co. have currently?

O'Brien Greene & Co. has approximately 4 employees as of December 2025. These team members are located across 1 continents, including North America.

Who are O'Brien Greene & Co.'s key employees and leadership?

As of December 2025, O'Brien Greene & Co.'s key employees include:

Chief Compliance Officer: E. O.
President And Ceo: M. O.
President & Chief Investment Officer: M. O.
Vice President: P. D.
Operations Manager: E. K.

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