Maximilian Karagöz

CEO & Notary Public

Maximilian Karagöz is the CEO at ALTON. He was also appointed as Notary Public by the Governor in Florida. His activities in the free economy and in politics allowed him to build up a valuable network of industry representatives. Mr. Karagöz has been leading our company since 2005 and can assist you based on his knowledge and long-term experience.

Michael Kempe


Since 2016, Michael Kempe has been part of the ALTON advisory team. He provides detailed advice to our customers concerning the US-Market Entry. His great expertise is the field of e-commerce amongst others.
After he completed his Business Degree with specialization in Marketing and Trade, he gained valuable experience in medium-sized, owner-managed companies and developed a good sense for the needs of entrepreneurs.
You can meet Michael Kempe at various business event. He talks about topics such as the US-Market Entry, the specificities in the USA and strategic approaches for European SMEs (small and medium-enterprises).

Florian Schweinle


After his studies at the LMU in Munich, Florian Schweinle gained his first professional experience in Sales and Real Estate Consulting. In 2011, he moved to the USA where he founded and led his own transport company in Miami, Florida.
Since his return to Germany, in the beginning of 2018, he has been working as an advisor in our Team in Wiesbaden and supports our customers based on his own practical experience regarding the US-Market entry.

Stefanie Beckmann


Stefanie Beckmann has been working for ALTON since 2017. She gained professional experience at reputable companies such as Lufthansa in New York or the BMW Group in Munich.
Her stays abroad in the USA, Canada and several European countries, allowed her to acquire intercultural skills that are beneficial for ALTON. Through her high customer orientation and her organizational talent, she always contributes to high satisfaction of our customers. Ms. Beckmann speaks fluently German, English, Spanish and French.

Nina Polzer

Administration – Wiesbaden

Nina Polzer has been working for ALTON since 2014. She serves our clients at our German headquarter in Wiesbaden. Ms. Polzer is responsible, amongst others, for administrative tasks in Wiesbaden.

Sandra Johne

Administration – Wiesbaden

Sandra Johne is oftentimes the first point of contact for existing customers at ALTON. Our customers value with exception her high competence. Ms. Johne has been working for ALTON since 2014.
Her extensive and long-term professional experience at our US-American headquarter in Miami, allowed her to acquire a wide range of qualifications that are now beneficial for ALTON.

Silja Jormanainen

Administration – Miami

Since 2011, Silja Jormanainen is part of ALTON at our headquarter in Miami. She is responsible for the communication with our existing customers. Silja Jormanainen speaks fluently German, English as well as Spanish and Finnish. Apart from her expertise concerning notarial activities, she is an organizational talent and contributes considerably through her language skills.

Sandra Tellez

Sales Tax Administration – Miami

Sandra Tellez is in charge of the Sales Tax Administration at our headquarter in Miami. She speaks perfectly German and Spanish and was working for the „Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)“ (German Society for International Cooperation) for 10 years.

Sebastian Dill

Sales Tax & Accounting – Miami

Sebastian Dill works for the ALTON headquarters in Miami and is responsible for our customers in the field of book-keeping and Sales Tax. He has been living in Miami since 2009 and has completed his Bachelor Degree, with a specialization in Finance, at the Florida International University. Sebastian Dill gained further professional experience at the subsidiary of LVMH Moët Hennessy – Louis Vuitton SE. Apart from German and English, he also speaks fluently Spanish.

Victoria Tubbs

Sales Tax & Accounting – Miami

Victoria Tubbs works for ALTON headquarters in Miami to support our customers in the field of accounting and Sales Tax.
She worked for ALTON in Miami from 2011 to 2014 and returned to ALTON after a stay in Germany. Victoria Tubbs is a trained industrial clerk and trainer (AEVO) and previously worked for a renowned pharmaceutical company in Berlin as an Executive Assistant and Office Manager. She brings in many years of experience in administrative and accounting areas and is fluent in German and English.