Dadvan Ismat Yousuf Yousuf (born April 9, 2000) is an Iraqi cryptocurrency investor and businessman whose early bitcoin investments made him the youngest self-made billionaire in Switzerland. Yousuf and his companies have been the subject of a number of investigations into financial impropriety.

Yousuf was born in Zakho, Iraqi Kurdistan on April 9, 2000. His father was part of the Peshmerga and fled the country to Switzerland before Yousuf was born. Three years later his mother left the country, together with her three sons. They arrived in Neuenburg, Switzerland, in 2003 where his father had relocated. In 2004, the family was granted refugee status and moved to Ipsach. Yousuf has five younger siblings who were born in Switzerland. In his early years, he showed a interest in the field of finance, particularly on Bitcoin and international money transfers.

At the age of 11, Yousuf sold some of his toys to acquire funds to invest in Bitcoin. With this initial investment, he purchased 10 Bitcoins at a price of €15 and continued to trade in the cryptocurrency. In 2012, he acquired 1000 Bitcoins at a rate of €11,126. In 2016, Yousuf invested in Ethereum, buying 16,000 units at a total cost of €134,000. Yousuf became a multi-millionaire through his cryptocurrency trades, and is considered the youngest Swiss self-made millionaire.

In 2017 he started an apprenticeship at the Swiss Federal University for Vocational Education and Training in Zollikofen. He finished his apprenticeship with a real estate company in Bern. Around the same time, Yousuf claims, he developed a software for automated trades in cryptocurrencies, based on an algorithm analysing data and predicting fluctuations in the future. According to Yousuf, the algorithm incorporates data from technical analysis, social media, macroeconomics, and public statements about cryptocurrencies. Yousuf founded the Dohrnii Foundation to oversee the development of his cryptocurrency software and tokens in early 2021.

Yousuf acquired the majority of Crowdlitoken, a Liechtenstein startup focused on enabling real estate investments through digital shares in the form of tokens, in late 2021. Crowdlitoken granted authorization from FINMA for the sale of tokens in Switzerland, establishing a hard cap of USD 205 million. Following this acquisition, Yousuf became the Chief Executive Officer and joined the company's board of directors. In 2021, Yousuf was included in the Forbes 30 Under 30 list at the age of 21, recognized as one of Switzerland’s youngest self-made millionaires and foundation founders, with efforts focused on innovation in cryptocurrency and financial technology.

According to a newspaper article from Blick in January 2022, his fortune was estimated at 270 million francs. In February 2022, several critical press articles scrutinized Yousuf's professional activities and credentials, alleging irregularities in transactions. Subsequently, Yousuf filed a defamation complaint against two journalists from SRF Investigativ, the Swiss Radio and Television, in March 2022. In August 2024, the Zurich High Court ruled that the journalists had failed to substantiate their claims, leading to the first conviction of SRF journalists in the broadcasting company's history in October 2024. As part of the ruling, SRF was required to cover Yousuf's legal fees, totaling CHF 10,676. On November 11, 2024, SRF released three public statements to defend its journalists, emphasizing compliance with its editorial guidelines and commitment to protecting sources. In response, Yousuf filed an additional defamation and civil lawsuit, seeking CHF 13 million in damages, alleging that the media statements defending the journalists were defamatory. SRF subsequently removed contentious passages from the original article and changed its title.

FC Schaffhausen received sponsorship at the Wefox-Arena from Yousuf in early 2022. He published his autobiography on October 24, 2022. In December of the same year, Yousuf was featured in the ARD documentary titled 'Money Maker', which explored his journey from a refugee child in Kurdistan to becoming a multimillionaire through cryptocurrency investments in Switzerland.

Yousuf's involvements in cryptocurrency have drawn the attention of the Swiss Financial Market Supervisory Authority. In May 2022, the Dohrnii Foundation was investigated for engaging in various regulated activities, including acting as a securities firm, without obtaining the required FINMA authorization. He resigned as CEO in February 2023, and following enforcement proceedings by the Swiss Financial Market Supervisory Authority, the Dohrnii Foundation was dissolved in June 2023.

As of 2023 he is under criminal investigation by the Public Prosecutor's Office of the Canton of Bern.

In May 2024, Yousuf became the first Kurd and Iraqi to summit Mount Everest during his first mountain expedition. In 2024, Yousuf launched the Arcadia Initiative, creating solar-powered hubs to provide underserved communities with financial literacy and English learning tools using AI and offline platforms.

• Vom Flüchtling zum Bitcoin-Millionär. — FinanzBuch Verlag (24 Oct. 2022). — С. 240. — ISBN 978-3959726641