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

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

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

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

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

R.J. O'Brien has employees across 4 continents and 12 countries including Singapore, United Arab Emirates, India, Malaysia, Pakistan.

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

R.J. O'Brien's team has decreased from approximately 697 to 400 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
329

United States Of America
327
Canada
2

Europe
81

United Kingdom Of Great Britain And Northern Ireland
74
France
5
Croatia
1
Poland
1

Asia
38

United Arab Emirates
21
Singapore
10
India
5
Malaysia
1
Pakistan
1

R.J. O'Brien's Leadership

G. L.
Chief Operating Officer Emea At R. J. O'brien
Mobile Phone
Email
N. R.
Chief Operating Officer, London
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
C. B.
Head Of Facilities Management
Mobile Phone
Email
S. D.
Head Compliance Officer
Mobile Phone
Email
J. J.
Senior Vice President
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

Contact profiles from R.J. O'Brien

Name

Title

Contact Info

Location

Last Update

J. M. S.
Manager Compliance Monitoring
Mobile Phone
Email
United KingdomEngland
Apr 29, 2026
R. O.
Senior Project Manager / Programme Manager
Mobile Phone
Email
United KingdomEngland
Mar 25, 2026
V. N.
Compliance Manager
Mobile Phone
Email
United Arab EmiratesDubai
Feb 09, 2026
A. C.
Clearing Operations Manager
Mobile Phone
Email
United Kingdom
Apr 11, 2023
B. J.
Execution Services Manager
Mobile Phone
Email
Oct 22, 2024
T. S.
Manager, Floor Operations
Mobile Phone
Email
Oct 22, 2024
K. P.
Human Resources Senior Generalist
Mobile Phone
Email
Jun 25, 2026
U. K.
Senior Risk Associate
Mobile Phone
Email
United Kingdom
Apr 14, 2026
B. C.
Senior Middle Office Analyst
Mobile Phone
Email
United Kingdom
Sep 09, 2025
G. C.
Senior Cloud Solution Engineer
Mobile Phone
Email
United Kingdom
Jun 26, 2026

Frequently Asked Questions

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

R.J. O'Brien was founded in 1914 operates in the Financial Services industry; you can contact the 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 . 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 495 employees as of July 2026. These team members are located across 3 continents, including North AmericaEuropeAsia.

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

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

Chief Operating Officer Emea At R. J. O'brien: G. L.
Chief Operating Officer, London: N. R.
Vp Otc Structured Products: J. W.
Vice President - Risk Management: N. T.
Head Of Legal: A. K.

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R.J. O'Brien Employee Directory

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