William Shannon
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William Shannon Email & Phone Number

Lawyer with extensive international business and investigations experience at Regnum International Services, LLC
Location: United States 3 work roles 2 schools
1 work email found @verrilldana.com LinkedIn matched
✓ Verified August 2026 4 data sources Profile completeness 100%

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Current company
Regnum International Services, LLC
Role
Lawyer with extensive international business and investigations experience
Location
United States

Who is William Shannon? Overview

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Quick answer

William Shannon is listed as Lawyer with extensive international business and investigations experience at Regnum International Services, LLC, based in United States. AeroLeads shows a work email signal at verrilldana.com and a matched LinkedIn profile for William Shannon.

William Shannon previously worked as Managing Director at Regnum International Services, Llc and Member at Shannon Sakamoto Llc. William Shannon holds J.D. With Specialization In International Affairs, International Law And Legal Studies from Cornell Law School.

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{first_initial}{last}@verrilldana.com
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Profile bio

About William Shannon

Extensive international legal, business and investigative experience in both the public and private sectors, specializing in all aspects of major international business transactions and major international investigations, including intelligence and counterintelligence matters and investigations as well as criminal, maritime and anti-corruption investigations. Business transactions include project finance, mergers and acquisitions, privatizations, joint ventures, oil and gas, maritime, finance and investment, and compliance with U.S. and international laws, including anti-corruption laws such as the U.S. Foreign Corrupt Practices Act and the British Bribery Act of 2010.He was an Intelligence Officer and Military Agent accredited to the Director of Naval Intelligence, Senior Special Agent at the Naval Investigative Service Office in Iceland and the Resident Special Agent at the NIS office for Scotland and Northern Ireland. He was also partner and counsel in major international law firms in Tokyo, Riyadh and Moscow; Counsel at European Bank for Reconstruction and Development in London, consultant to the Privatization Ministry in Romania, and senior legal advisor at a major petroleum company in Saudi Arabia.Specialties: International business transactions and investigations, international anti-corruption laws, including compliance, due diligence and investigations, international business risk assessment and related investigations, international project finance and joint ventures, oil and gas and maritime matters. He is licensed to practice law in New York, Massachusetts, Hawaii and Maine. He was one of first foreign attorneys to be licensed to practice law in Japan (Gaikokuho-Jimu-Bengoshi (1988 -1992)).

Listed skills include Due Diligence, Joint Ventures, Mergers And Acquisitions, Investigation, and 23 others.

Current workplace

William Shannon's current company

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Regnum International Services, LLC
Regnum International Services, Llc
Lawyer with extensive international business and investigations experience
3 roles

William Shannon work experience

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Managing Director

Current
Regnum International Services, Llc

Portland, Maine, Moscow, London, Bucharest, Riyadh And Jeddah, Saudi Arabia

Managing Director responsible for all aspects of a consulting firm which provides a broad range of international legal, business and investigative consulting services. Completed projects included serving as a consultant to the Romanian Privatization Ministry in Bucharest with regard to the privatization of state owned assets in accordance with the World Bank’s anti-corruption policies as part of a World Bank financed program; counsel in the Office of the General Counsel of the European Bank for Reconstruction and Development in London assisting with public and private financing in the countries of the former Soviet Union; represented the International Finance Corporation with regard to private enterprise loans in Romania and Bulgaria, and conducted international investigations, including investigations in support of U.S. litigation.He was a partner in the Tokyo office of Kelley Drye & Warren, resident partner with Bryan Cave in Riyadh, Saudi Arabia, counsel with White & Case in Moscow, and Senior Legal Adviser to Saudi Aramco in Jeddah, Saudi Arabia.He was also a naval intelligence officer and military agent accredited by the Director and Naval Intelligence and a civilian Special Agent. While attached to the U.S. Naval Investigative Service Office, Europe, as a Special Agent, he was the Senior Resident Agent in Iceland and and Resident Agent for Scotland and Northern Ireland where he was responsible for investigations and intelligence and counterintelligence operations. During that period he held a Top Secret - Intelligence Personnel security clearance. Advises clients with regard to their overseas business activities, including cross border business transactions, anti-corruption matters, confidential investigations, international risk assessment and compliance with applicable laws and regulations.

Sep 1999 - Present

Member

Current
Shannon Sakamoto Llc

Portland, Maine, Doha, Qatar

Member – Engaged in corporate matters and commercial transactions, with special expertise and experience in international business transactions, including joint ventures, project finance, oil and gas, banking and investment, real estate development and maritime matters in Europe, the Middle East and Asia. He was legal consultant to the Law Offices of Gebran Majdalany, Doha, Qatar where he acted as local counsel to Qatari Diar with regard to the Chelsea Barracks acquisition (US$1 billion +), to Qatar Petroleum with regard to the Gulf International Services IPO (approx. US$1 billion), and to Al Waab City WLL with regard to the US$1 billion + Al Waab City real estate development project. He was also responsible for the Qatari part of a world-wide investigation that resulted from FCPA violations by a very large European Industrial complex, and represented major international companies with regard a broad range of other matters.

Sep 2005 - Present

Counsel, Verrill Dana Llp

Verrill Dana Llp

Portland, Maine

Counsel - Continued his broad based international practice with special emphasis on the development of his international anti-corruption practice. He advised clients on all aspects of international anti-corruption law, made international anti-corruption presentations to various groups,made an ExecSense Webinar on the same topic, and had international anti-corruption articles published in legal and business publications. He continued to advise clients with regard to their overseas business activities, including compliance with relevant U.S. and foreign law and international trade matters, including compliance with laws and regulations regarding the import and export of goods and services.

Jan 2010 - Jul 2018
2 education records

William Shannon education

J.D. With Specialization In International Affairs, International Law And Legal Studies

B.S. With Honors, Nautical Science And Marine Transportation

U.S. Merchant Marine Academy, Kings Point
FAQ

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What company does William Shannon work for?

William Shannon works for Regnum International Services, LLC.

What is William Shannon's role at Regnum International Services, LLC?

William Shannon is listed as Lawyer with extensive international business and investigations experience at Regnum International Services, LLC.

What is William Shannon's email address?

AeroLeads has found 1 work email signal at @verrilldana.com for William Shannon at Regnum International Services, LLC.

Where is William Shannon based?

William Shannon is based in United States while working with Regnum International Services, LLC.

What companies has William Shannon worked for?

William Shannon has worked for Regnum International Services, Llc, Shannon Sakamoto Llc, and Verrill Dana Llp.

How can I contact William Shannon?

You can use AeroLeads to view verified contact signals for William Shannon at Regnum International Services, LLC, including work email, phone, and LinkedIn data when available.

What schools did William Shannon attend?

William Shannon holds J.D. With Specialization In International Affairs, International Law And Legal Studies from Cornell Law School.

What skills is William Shannon known for?

William Shannon is listed with skills including Due Diligence, Joint Ventures, Mergers And Acquisitions, Investigation, Private Investigations, Risk Management, Legal Advice, and Contract Negotiation.

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