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World-class expertise when you need it most.

Our deep expertise has been forged by exceptional impact and success with Fortune 500 companies, the world’s leading philanthropists, and major global governments.

Our network

We’ve built a global network of trusted business, government, and civic leaders—including top former Ambassadors from the U.S., U.K., Canada, and the EU. Their deep regional and sector expertise has unlocked impossible, creative solutions to some of the world’s toughest challenges. We’ll put this bespoke network to work for you.

We are Ambassadors from the United States, United Kingdom, Canada and the European Union who improved relations, fought hard for our countries, and delivered impossible, creative solutions to some of the world’s most-pressing issues. 

Let’s get to work, together

Ambassador Roger Nyhus

Founder & CEO

Ambassador Roger F. Nyhus is the CEO and founder of AMBO Strategy, a high-stakes consultancy helping CEOs and global leaders manage important priorities and solve complex issues.

A professional problem solver, Ambassador Nyhus has served as a trusted adviser and crisis counselor to top global business, government and nonprofit leaders, including CEOs of Fortune 500 companies.

He most recently served as U.S. Ambassador to Barbados, Saint Kitts and Nevis, Saint Lucia, Antigua and Barbuda, Dominica, Grenada, and Saint Vincent and the Grenadines from 2023-2025.

As ambassador, he focused on climate and energy transition, enhancing regional security, and promoting economic prosperity via private sector engagement. Working with the Export-Import Bank of the United States, Ambassador Nyhus secured nearly $1 billion in potential financing for the Eastern Caribbean – an historic accomplishment.

Ambassador Nyhus brings an entrepreneurial, private-sector perspective to all his roles. Previously, he served as founder and CEO of Nyhus Communications, a successful nearly 30-year-old, Seattle-based strategic communications, advocacy and marketing consultancy. He sold his firm in 2022.

Ambassador Nyhus is a strong and effective advocate for international trade and economic development. He has represented numerous clients in advancing global commercial and cultural engagement and people-to-people exchange.

Ambassador Nyhus is a proud member of the Chinook Indian Nation, one of the original diplomatic tribes. His great uncle served as tribal chair in the 1970s. Ambassador Nyhus’ ancestors greeted explorers Lewis and Clark at the mouth of the mighty Columbia River more than two centuries ago.

Ambassador Nyhus was one of only five Native American ambassadors in U.S. history. Ambassador Nyhus grew up in Westport, Washington, a small fishing village on the Pacific Ocean. The son of a commercial fisherman and municipal court clerk, Ambassador Nyhus ran the town’s summer fishing derby to help pay for college. He understands life on the ocean and economies that rely on natural resources and tourism. His personal passions include championing wildlife conservation and the arts.

Duncan Clark

CEO & FOunder

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc tempus in odio et feugiat. Ut congue venenatis tellus at ullamcorper. Vivamus a placerat eros. Ut volutpat venenatis purus eu hendrerit. Proin lorem metus, ornare auctor mollis ac, feugiat sed nibh. Vivamus sagittis pulvinar metus quis tempor. Etiam ultrices, felis rhoncus egestas gravida, nisi diam placerat nunc, sit amet ullamcorper tortor orci ac leo. Sed eu efficitur dolor. Suspendisse risus neque, rhoncus quis mollis nec, sodales sit amet urna.

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Deanna Oppenheimer

CEO & FOunder

Ambassador Nyhus and his firms have been recognized for their business, civic and philanthropic work.

In 2025, Ambassador Nyhus received the Lifetime Achievement Award | Business of Pride from the Puget Sound Business Journal and the Greater Seattle Business Association, North America’s largest LGBTQ+ chamber of commerce. In 2023, Ambassador Nyhus was inducted into the Hall of Achievement at Washington State University’s Edward R. Murrow College of Communication, his alma mater, and received the Public Relations Society of America’s Jay Rockey Lifetime Achievement Award for advancing the field of public relations.

In 2010, Ambassador Nyhus was named Business Leader of the Year by the Greater Seattle Business Association. Nyhus Communications, his previous firm, earned the Seattle Mayor’s Small Business Award in 2009. In 2006, the Puget Sound Business Journal recognized Ambassador Nyhus as one of 40 outstanding members of the business community under the age of 40.

John Oppenheimer

CEO & FOunder

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc tempus in odio et feugiat. Ut congue venenatis tellus at ullamcorper. Vivamus a placerat eros. Ut volutpat venenatis purus eu hendrerit. Proin lorem metus, ornare auctor mollis ac, feugiat sed nibh. Vivamus sagittis pulvinar metus quis tempor. Etiam ultrices, felis rhoncus egestas gravida, nisi diam placerat nunc, sit amet ullamcorper tortor orci ac leo. Sed eu efficitur dolor. Suspendisse risus neque, rhoncus quis mollis nec, sodales sit amet urna.

Nam urna erat, posuere a leo a, mattis molestie ligula. Praesent at felis consectetur, pharetra massa eu, commodo tortor. Maecenas ut dui quis nunc aliquam consectetur. In non velit euismod, hendrerit purus a, lacinia dolor. Aenean nisi magna, feugiat non nisl vel, molestie laoreet lacus. Nunc imperdiet quam diam, at posuere dui ultrices non. Sed interdum, ligula nec congue viverra, turpis arcu eleifend odio, vel volutpat neque dui ac elit. Aliquam at eleifend risus. Cras gravida, mauris sit amet iaculis feugiat, diam quam rhoncus dolor, et ullamcorper turpis dui sit amet magna.

Bob Ratliffe

CEO & FOunder

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc tempus in odio et feugiat. Ut congue venenatis tellus at ullamcorper. Vivamus a placerat eros. Ut volutpat venenatis purus eu hendrerit. Proin lorem metus, ornare auctor mollis ac, feugiat sed nibh. Vivamus sagittis pulvinar metus quis tempor. Etiam ultrices, felis rhoncus egestas gravida, nisi diam placerat nunc, sit amet ullamcorper tortor orci ac leo. Sed eu efficitur dolor. Suspendisse risus neque, rhoncus quis mollis nec, sodales sit amet urna.

Nam urna erat, posuere a leo a, mattis molestie ligula. Praesent at felis consectetur, pharetra massa eu, commodo tortor. Maecenas ut dui quis nunc aliquam consectetur. In non velit euismod, hendrerit purus a, lacinia dolor. Aenean nisi magna, feugiat non nisl vel, molestie laoreet lacus. Nunc imperdiet quam diam, at posuere dui ultrices non. Sed interdum, ligula nec congue viverra, turpis arcu eleifend odio, vel volutpat neque dui ac elit. Aliquam at eleifend risus. Cras gravida, mauris sit amet iaculis feugiat, diam quam rhoncus dolor, et ullamcorper turpis dui sit amet magna.

Steve Davis

CEO & FOunder

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc tempus in odio et feugiat. Ut congue venenatis tellus at ullamcorper. Vivamus a placerat eros. Ut volutpat venenatis purus eu hendrerit. Proin lorem metus, ornare auctor mollis ac, feugiat sed nibh. Vivamus sagittis pulvinar metus quis tempor. Etiam ultrices, felis rhoncus egestas gravida, nisi diam placerat nunc, sit amet ullamcorper tortor orci ac leo. Sed eu efficitur dolor. Suspendisse risus neque, rhoncus quis mollis nec, sodales sit amet urna.

Nam urna erat, posuere a leo a, mattis molestie ligula. Praesent at felis consectetur, pharetra massa eu, commodo tortor. Maecenas ut dui quis nunc aliquam consectetur. In non velit euismod, hendrerit purus a, lacinia dolor. Aenean nisi magna, feugiat non nisl vel, molestie laoreet lacus. Nunc imperdiet quam diam, at posuere dui ultrices non. Sed interdum, ligula nec congue viverra, turpis arcu eleifend odio, vel volutpat neque dui ac elit. Aliquam at eleifend risus. Cras gravida, mauris sit amet iaculis feugiat, diam quam rhoncus dolor, et ullamcorper turpis dui sit amet magna.