Insights

Institutional trading focus William O'Neil Securities positions itself as a broker-dealer with a buy-side trading mentality and robust trader relationships, appealing to institutional clients seeking high-touch, research-informed order processing and agency-only execution.

Experienced leadership The firm emphasizes veteran sales traders and leadership with deep industry history, suggesting credibility for expanding relationships with mid-market and institutional asset managers seeking trusted execution partners.

Advanced tech stack Utilizes PANARAY platform training, SAP SuccessFactors, AWS, Redshift and other modern tools, indicating potential for cross-sell of data, analytics, and cloud-based workflow enhancements to clients demanding integrated tech solutions.

Growth through algo trading Recent leadership hire focused on electronic trading and acceleration of algorithmic execution signals a scalable opportunity to partner with buy-side firms migrating to automated, cost-efficient execution.

Mid-market scale With 11-50 employees and revenue in the lower mid-market range, there is a clear path to upsell to small-to-mid-sized asset managers and regional banks seeking institutional-grade execution and service without large-firm overhead.

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William O'Neil Securities Tech Stack

William O'Neil Securities uses 8 technology products and services including SAP SuccessFactors, Amazon Web Services, WordPress, and more. Explore William O'Neil Securities's tech stack below.

William O'Neil Securities's Email Address Formats

William O'Neil Securities uses at least 2 email formats:
William O'Neil Securities Email FormatsExamplePercentage
First.Last@oneilsecurities.comJohn.Doe@oneilsecurities.com
83%
Last@oneilsecurities.comDoe@oneilsecurities.com
17%

Frequently Asked Questions

What is William O'Neil Securities's phone number?

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You can contact William O'Neil Securities'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 William O'Neil Securities's official website and social media links?

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William O'Neil Securities's official website is oneilsecurities.com and has social profiles on LinkedIn.

How much revenue does William O'Neil Securities generate?

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As of August 2026, William O'Neil Securities's annual revenue is estimated to be $10M - $25M.

What is William O'Neil Securities's SIC code and NAICS code?

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William O'Neil Securities's SIC code is 6211 - Security Brokers, Dealers, and Flotation Companies and NAICS code is 52 - Finance and Insurance.

How many employees does William O'Neil Securities have currently?

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As of August 2026, William O'Neil Securities has approximately 13 employees across 3 continents, including North America, Asia and Europe. Key team members include Managing Director: D. L. and Marketing: I. J. Explore William O'Neil Securities's employee directory with LeadIQ.

What industry does William O'Neil Securities belong to?

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William O'Neil Securities operates in the Financial Services industry.

What technology does William O'Neil Securities use?

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William O'Neil Securities's tech stack includes SAP SuccessFactors, Amazon Web Services, WordPress, SAP, Amazon Redshift, Amazon Simple Email Service, Microsoft 365 and Webflow.

What is William O'Neil Securities's email format?

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William O'Neil Securities's email format typically follows the pattern of First.Last@oneilsecurities.com. Find more William O'Neil Securities email formats with LeadIQ.
William O'Neil Securities logo

William O'Neil Securities

Financial ServicesMassachusetts, United States11-50 Employees

William O'Neil Securities, based in Boston, Massachusetts, operates as a broker-dealer with a buy-side trading mindset designed to act as an extension of its clients' teams. Its trading desk relationships are positioned beyond mere order execution, supported by seasoned sales traders and leadership with a long history in a family of investment companies. Traders are trained in institutional investment research through the PANARAY platform, which ties them to the O'Neil Methodology and buy-side processes while offering objective access to equity markets. This cross-training aims to provide an additional perspective on order flow while preserving agency-only objectivity and cost-efficient access to markets. Founded in 1963, the firm focuses on institutional and other buy-side clients, and in May 2026 it announced the appointment of Brian Williamson as managing director of electronic trading to broaden its electronic trading capabilities.

Section iconCompany Overview

Phone number
SIC Code
6211 - Security Brokers, Dealers, and Flotation Companies
NAICS Code
52 - Finance and Insurance
Employees
11-50

Section iconFunding & Financials

  • $10M - $25M

    William O'Neil Securities's revenue is estimated to be in the range of $10M - $25M

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