Atty. James O'Sullivan

Atty. James O'Sullivan

James O'Sullivan is a lawyer practicing capital markets, corporate, debt capital markets and 6 other areas of law. James received a B.Sc. degree from University of Calgary in 2000, and has been licensed for 19 years.

19 yrs experience 19 year
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Profile Summary

About James O'Sullivan at a glance

James O'Sullivan is a Partner, practicing at Dentons Canada LLP. They have 19+ years of legal experience, licensed to practice since 2007. Their practice focuses on business, securities, and energy. Admitted to practice in Alberta (2007). Educated at Western University (LL.B., 2006) and University of Calgary (B.Sc., 2000).

Verified attorney profile · Updated June 2026

About

  • James O'Sullivan is a lawyer practicing capital markets, corporate, debt capital markets and 6 other areas of law
  • James received a B.Sc. degree from University of Calgary in 2000, and has been licensed for 19 years
  • James practices at Dentons Canada LLP in Calgary, AB

Practice Areas Explained

James O'Sullivan's Areas of Practice

Each practice area below reflects the types of cases James O'Sullivan handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

James O'Sullivan is one of 501,317 business attorneys indexed nationally. Browse business attorneys →

Securities Law

James O'Sullivan is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

James O'Sullivan is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys →

Frequently Asked

Common questions about James O'Sullivan

What practice areas does James O'Sullivan handle?
James O'Sullivan focuses on business, securities, energy. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has James O'Sullivan practiced law?
James O'Sullivan has 19+ years of legal experience and has been licensed since 2007.
Where did James O'Sullivan go to law school?
James O'Sullivan earned their education at (LL.B., 2006); (B.Sc., 2000).
How can I contact James O'Sullivan for a consultation?
You can contact James O'Sullivan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

LL.B.
Western University
- 2006
B.Sc.
University of Calgary
- 2000

Bar Admissions

Alberta
Admitted: 2007

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