Insights

Acquisition Signals Recent acquisition by StoneX for 900M indicates strategic consolidation in the futures brokerage space, presenting an opportunity to approach StoneX and its now-expanded client network for post-merger integration services, technology partnerships, and onboarding support for the combined client base.

Digital Transformation RJO has a long history of technology-enabled trading with 24-hour execution and clearing across global futures exchanges; potential upsell opportunities exist for advanced trading analytics, API integrations, low-latency data feeds, and modernized clearing and settlement workflows.

Growth in EMEA Leadership announcements in EMEA and new regional roles suggest a push into Europe, the Middle East, and Africa; target prospects include regional IBs and institutions seeking local coverage, regulatory-compliant platforms, and scalable clearing solutions.

Compliance & Governance Appointment of a Global Chief Compliance Officer and emphasis on regulated, compliant operations create openings for to-market offerings in risk management, surveillance solutions, and regtech services tailored for global futures brokers and their clients.

Brand Modernization Brand updates and new website launches for RJO Futures signal a consumer-facing modernization effort; opportunities exist to partner on marketing technology, client onboarding experiences, CRM enhancements, and revenue-generating client education portals.

R.J. O'Brien Tech Stack

R.J. O'Brien uses 8 technology products and services including StackAdapt, Font Awesome, Really Simple Discovery, and more. Explore R.J. O'Brien's tech stack below.

  • StackAdapt
    Demand Side Platforms
  • Font Awesome
    Font Scripts
  • Really Simple Discovery
    Miscellaneous
  • X-XSS-Protection
    Security
  • Kendo UI
    UI Frameworks
  • YouTube
    Video Players
  • Yii
    Web Frameworks
  • Nginx
    Web Servers

Media & News

R.J. O'Brien's Email Address Formats

R.J. O'Brien uses at least 1 format(s):
R.J. O'Brien Email FormatsExamplePercentage
FLast@rjobrien.comJDoe@rjobrien.com
95%
FirstL@rjobrien.comJohnD@rjobrien.com
3%
FirstLast@rjobrien.comJohnDoe@rjobrien.com
1%
First@rjobrien.comJohn@rjobrien.com
1%

Frequently Asked Questions

What is R.J. O'Brien's phone number?

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You can contact R.J. O'Brien's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is R.J. O'Brien's official website and social media links?

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R.J. O'Brien's official website is rjobrien.com and has social profiles on LinkedInCrunchbase.

What is R.J. O'Brien's SIC code NAICS code?

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R.J. O'Brien's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies NAICS code is 52 - Finance and Insurance.

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

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As of July 2026, R.J. O'Brien has approximately 495 employees across 3 continents, including North AmericaEuropeAsia. Key team members include Chief Operating Officer Emea At R. J. O'brien: G. L.Chief Operating Officer, London: N. R.Vp Otc Structured Products: J. W.. Explore R.J. O'Brien's employee directory with LeadIQ.

What industry does R.J. O'Brien belong to?

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R.J. O'Brien operates in the Financial Services industry.

What technology does R.J. O'Brien use?

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R.J. O'Brien's tech stack includes StackAdaptFont AwesomeReally Simple DiscoveryX-XSS-ProtectionKendo UIYouTubeYiiNginx.

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

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R.J. O'Brien's email format typically follows the pattern of FLast@rjobrien.com. Find more R.J. O'Brien email formats with LeadIQ.

When was R.J. O'Brien founded?

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R.J. O'Brien was founded in 1914.
R.J. O'Brien logo

R.J. O'Brien

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.

Section iconCompany Overview

Phone number
SIC Code
6211 - Security Brokers, Dealers, and Flotation Companies
NAICS Code
52 - Finance and Insurance
Founded
1914
Employees
201-500

Section iconFunding & Financials

  • $500M$1B

    R.J. O'Brien's revenue is estimated to be in the range of $500M$1B

Section iconFunding & Financials

  • $500M$1B

    R.J. O'Brien's revenue is estimated to be in the range of $500M$1B

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