What departments does R.J. O'Brien have?

R.J. O'Brien has employees across 11 departments including Finance, Legal, Operations, Sales, Support.

What is the largest department at R.J. O'Brien?

The largest department at R.J. O'Brien is Legal with 5 employees.

Where are R.J. O'Brien employees located globally?

R.J. O'Brien has employees across 4 continents and 10 countries including Singapore, United Arab Emirates, Pakistan, India, United Kingdom Of Great Britain And Northern Ireland.

How has R.J. O'Brien's team size changed over time?

R.J. O'Brien's team has decreased from approximately 697 to 392 employees based on available data.

R.J. O'Brien Employee Directory

Financial ServicesIllinois, United States201-500 Employees

R.J. O'Brien & Associates LLC is a financial services company that operates as a futures brokerage and clearing firm, headquartered at 222 South Riverside Plaza Suite 1200, Chicago, Illinois 60606, and it has between 501 and 1,000 employees. It is a futures commission merchant (FCM) and is described as the oldest and largest independent futures brokerage and clearing firm in the United States, with a boutique profile. The firm is a full clearing member of CME Group and all its markets, Intercontinental Exchange, NYSE Liffe U.S., and the CBOE Futures Exchange, providing 24-hour execution and clearing on futures exchanges worldwide. It serves a global network of introducing brokers and clients, including more than 400 introducing brokers and many large financial, industrial, and agricultural institutions, and it clears more than 100,000 client accounts while not engaging in proprietary trading. In 2025, StoneX Group announced an agreement to acquire R.J. O'Brien Limited, and the company maintains a website at https://rjobrien.com.

R.J. O'Brien Global Highlights

North America
289

United States Of America
287
Canada
2

Europe
72

United Kingdom Of Great Britain And Northern Ireland
66
France
5
Poland
1

Asia
28

United Arab Emirates
17
Singapore
7
India
3
Pakistan
1

R.J. O'Brien's Leadership

G. L.
Chief Operating Officer Emea At R. J. O'brien
Mobile Phone
Email
J. W.
Vp Otc Structured Products
Mobile Phone
Email
N. T.
Vice President - Risk Management
Mobile Phone
Email
A. K.
Head Of Legal
Mobile Phone
Email
D. E.
Head Of Regulatory Reporting & Cass Emea
Mobile Phone
Email
C. B.
Head Of Facilities Management
Mobile Phone
Email
A. W.
Managing Director, Emea Head Sales & Global Head Fixed Income
Mobile Phone
Email
B. C.
Managing Director - Execution Desk
Mobile Phone
Email

R.J. O'Brien Employee Metrics

100%

50%

0%

2026

2025

Analytics
Engineering
Finance
Sales
Accounting
Other
Operations
Banking
Legal
Information Technology
Business
Entrepreneurship

Contact profiles from R.J. O'Brien

Name

Title

Contact

Location

Last Update

B. S.
Client Services Director
Mobile Phone
Email
Jun 24, 2025
J. C.
Director, Assistant Treasurer
Mobile Phone
Email
Jun 25, 2025
T. M.
Director Of Compliance
Mobile Phone
Email
Oct 21, 2024
C. H.
Associate Director Human Resources
Mobile Phone
Email
United Kingdom
Oct 01, 2026
F. S.
Associate Director Risk
Mobile Phone
Email
United Kingdom, England
Feb 27, 2026
J. E.
Associate Director, Compliance (compliance Officer And Mlro)
Mobile Phone
Email
United Arab Emirates, Dubai
Jun 27, 2026
J. M. S.
Trade Surveillance Manager
Mobile Phone
Email
United Kingdom, England
Sep 06, 2026
R. O.
Senior Project Manager / Programme Manager
Mobile Phone
Email
United Kingdom, England
Sep 11, 2026
V. N.
Compliance Manager
Mobile Phone
Email
United Arab Emirates, Dubai
Feb 09, 2026
J. A.
Responsable Administratif Et Financier
Mobile Phone
Email
France, Île-de-France
Sep 02, 2026

Frequently Asked Questions

What is R.J. O'Brien known for?

R.J. O'Brien was founded in 1914 and operates in the Financial Services industry. You can contact R.J. O'Brien's main corporate office by phone at

+1-312-373-****

. Explore R.J. O'Brien's company overview page for more information.

What is R.J. O'Brien's most common email format?

R.J. O'Brien employees' email format typically follows the pattern of FLast@rjobrien.com. Trying to find reliable and up-to-date employee contact data? Find more R.J. O'Brien email formats with LeadIQ.

How many employees does R.J. O'Brien have currently?

R.J. O'Brien has approximately 433 employees as of October 2026. These team members are located across 3 continents, including North America, Europe and Asia.

Who are R.J. O'Brien's key employees and leadership?

As of October 2026, R.J. O'Brien's key employees include:

Chief Operating Officer Emea At R. J. O'brien: G. L.
Vp Otc Structured Products: J. W.
Vice President - Risk Management: N. T.
Head Of Legal: A. K.
Head Of Regulatory Reporting & Cass Emea: D. E.

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R.J. O'Brien Employee Directory

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