Helen O'Sullivan

AML Manager,  Ascentium
Location: George Town, Cayman Islands,
Expertise: Corporate and Regulatory,

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Latest Review

Co-worker review:
Helen is a very highly regarded professional who is able to uniquely blend her deep technical expertise with a collaborative and commercial approach. She brings a thoughtful, strategic insight to every engagement and can translate complex issues into clear and practical guidance. Helen is extremely personable and genuinely invested in building value relationships, consistently sharing her knowledge and actively contributing to the broader industry. I am looking forward to seeing her continued growth and can strongly recommend her expertise and professionalism
David Pritchard - Harneys Fiduciary
07 Oct 2025

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Reviews

Co-worker review:
Helen is a very highly regarded professional who is able to uniquely blend her deep technical expertise with a collaborative and commercial approach. She brings a thoughtful, strategic insight to every engagement and can translate complex issues into clear and practical guidance. Helen is extremely personable and genuinely invested in building value relationships, consistently sharing her knowledge and actively contributing to the broader industry. I am looking forward to seeing her continued growth and can strongly recommend her expertise and professionalism
David Pritchard - Harneys Fiduciary
07 Oct 2025
Co-worker review:
Helen is a highly respected and well-liked professional whose deep expertise in her field consistently sets her apart. She brings a wealth of knowledge to every engagement and is known for her thoughtful, strategic approach. Helen is exceptionally well-connected across the industry and actively cultivates her network, which speaks to both her professionalism and her collaborative spirit. What truly distinguishes Helen is her commitment to innovation. She is always seeking new ways to enhance her service offering, ensuring it remains at the forefront of the industry. Her forward-thinking mindset and dedication to excellence make her a standout professional and a trusted advisor.
Richard Gordon - Harneys Fiduciary
06 Oct 2025
Peer review:
I have known Helen O’Sullivan since early 2019, when we worked together for three years, and we have continued to stay in touch regularly since then, often discussing industry developments and emerging trends. Helen consistently demonstrates the highest levels of professionalism and expertise, and she has established herself as a true subject matter expert in virtual assets. Her advice is always of exceptional quality—thorough, practical, and forward-looking—while her ability to clearly communicate complex matters ensures her guidance is both understood and actionable. Helen combines this expertise with outstanding interpersonal skills; she is approachable, collaborative, and genuinely invested in supporting her peers and contributing to the wider industry dialogue. She also continues to invest heavily in her own knowledge and professional growth, which is evident in the value she brings to every conversation and engagement. Based on my experience, I would not hesitate to recommend Helen for her expertise, integrity, and the high standard of work she consistently delivers.
Damon Wilson - FundBank Ltd.
11 Sep 2025

Case Studies

Money Laundering Reporting Officer (MLRO) for a variety of client structures

Helen is an AML Manager at Harneys Fiduciary with over 15 years of experience in the legal and financial industries across London, the British Virgin Islands, and the Cayman Islands. She specialises in AML, CFT, CPF, project management, and service line development, with a particular focus on the Cayman Islands and British Virgin Islands.

Currently, Helen serves as an Anti-Money Laundering Compliance Officer (AMLCO) and Money Laundering Reporting Officer (MLRO) for a variety of client structures. Her expertise centers on funds investing in digital assets and fintech, including accepting subscriptions in cryptocurrency, as well as providing a broad range of digital asset services.

Helen is committed to continuous professional development in compliance, digital assets, and fintech. She holds a Diploma in AML from the International Compliance Association (ICA), the Certified AML Fintech Compliance Associate qualification from the Association of Certified Anti-Money Laundering Specialists (ACAMS), a Crypto Compliance Specialisation from the Association of Certified Financial Crime Specialists (ACFCS), and the TRM Crypto Compliance Specialist certification from TRM Labs.

 

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Commendations

Top 50 Crypto Professionals 2023