Jonathan Levin
Co-Founder and CEO

Trained as an economist, Jonathan began studying cryptocurrencies over a decade ago, and co-founded Chainalysis in 2014. He is a thought leader in the industry, regularly speaking at events worldwide, and has testified multiple times before the U.S. Congress on the subjects of national security and blockchain technology. He is a trusted advisor to the largest companies and governments globally on the opportunities and risks of cryptocurrencies.

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Sarah Ward
Chief Legal and Administrative Officer

Sarah is Chief Legal and Administrative Officer at Chainalysis where she oversees a range of functions including Communications, Compliance, Legal, People, Policy, Privacy and Security. Sarah is passionate about helping companies navigate novel business challenges and execute on innovative growth strategies. Prior to joining Chainalysis, Sarah was General Counsel at Sisense, where she advised on all aspects of their growing business. Before Sisense, Sarah was the Assistant General Counsel at MongoDB where she guided the company through hyper-growth and their successful IPO. Sarah started her legal career at Skadden, Arps, Slate, Meagher & Flom LLP in New York.

Omesh Agam
Chief Information Security Officer

As the Chief Information Security Officer, Omesh leads the company’s global security team, including security engineering, operations and compliance. Omesh has more than 20 years of experience in information security, having served as CISO at high-growth technology companies Celonis and Appian.

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Sebastien Giroux
Chief Financial Officer

Sebastien is Chief Financial Officer at Chainalysis, where he oversees finance, accounting, business systems and corporate development. He brings more than 20 years of experience building financial foundations and executing enterprise strategy in close alignment with go-to-market, product, and operations across leading enterprise software, data, and AI-driven companies.

Prior to joining Chainalysis, Sebastien was CFO at Productboard, a leading product management and customer insights platform used by enterprise software teams, where he led the company’s Finance, IT, and Operations organizations, strengthening strategic and financial rigor. He previously served as CFO at Collibra, supporting a period of strong growth and global expansion as the company scaled its enterprise data and AI governance platform. Earlier in his career, Sebastien was Chief Accounting Officer at Atlassian, where he played a key role in the company’s successful IPO and its evolution into a large-scale, publicly traded global organization. He has also held senior finance and strategic leadership roles at RingCentral, IBM, and Taleo Corporation (acquired by Oracle).

Sebastien is based in New York and holds a Bachelor’s degree in Business Administration from Université Laval in Quebec, Canada, and is a Chartered Professional Accountant (CPA, Canada).

Bas Lemmens
Chief Revenue Officer

Bas Lemmens has been with Chainalysis since 2021. Prior to Chainalysis, Bas was Vice President and General Manager of VMware’s Modern Applications Business Unit in EMEA, managing the Tanzu portfolio of products and services. This position followed his role as VP and General Manager for EMEA at Pivotal Software, which VMware acquired in December 2019.

Bas’s extensive experience in IT is marked by a strategic blend of business acumen and technological expertise. Educated in Automation and Computer Science in the Netherlands, he began his career as an officer in the Royal Netherlands Airforce, where he ascended to Head of Communication and Information Systems.

Jacob Illum
Chief Scientist

Jacob has chased bugs in distributed systems in academia and business for many years, and enjoys throwing that experience at the ever-growing pile of challenging, never-before-solved problems in the fast-evolving field of blockchain.

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Gerd Behrmann
Chief Engineer

Before joining Chainalysis in 2016, Gerd left a promising academic career in formal computer science (boring) to work for 10 years on large scale geographically distributed storage for science related projects (CERN). Gerd is passionate about code quality, performance, and protocols.

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