Thomas O'brienGeneral Practice Attorney in Sunnyvale, CA

About

Thomas O’Brien is a member of Illumio, Inc. based in Sunnyvale, California, where he contributes his legal knowledge and practical insight as part of the firm’s general practice. With a broad-based approach to legal matters, he is committed to helping clients navigate a wide range of business and legal issues with clarity, efficiency, and professionalism. His work reflects a strong focus on delivering thoughtful guidance tailored to each client’s needs, with an emphasis on responsive service and sound judgment. Licensed in California and admitted to the State Bar under Bar Number 4154688, Mr. O’Brien brings a steady, detail-oriented perspective to his practice. His general practice background allows him to approach legal matters from multiple angles, helping clients address concerns proactively while staying focused on practical solutions. Whether assisting with day-to-day legal issues or more complex matters, he is known for his commitment to careful analysis and dependable support. Based in Sunnyvale, Mr. O’Brien serves clients in a dynamic and fast-paced legal and business environment. He values clear communication, client trust, and a collaborative approach to problem-solving. Through his work at Illumio, Inc., he remains dedicated to providing professional legal support that helps clients move forward with confidence.

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