Board Members

President: Mark C. Hilgard

Mark C. Hilgard advises clients in business law; he is experienced in drafting and negotiating contracts (e.g., corporate and commercial, automotive, bank, construction, telecommunication, agency disputes, distribution law, as well as related to plant engineering and construction, M&A [mergers and acquisitions,]) and represents clients in disputes before arbitral institutions and ordinary courts (for example in M&A matters: purchase price adjustment disputes, violation of guarantees, etc.). In many arbitral matters he also sits as arbitrator (Chairman or Co-arbitrator).

Executive Vice President: C. Michael Oppenheim

Michael has over 40 years experience in sales, marketing and senior management in consumer durables (automotive, photo equipment, etc.) and consulting of multi-national companies in the USA, UK and Germany.

Programs: Thomas Leiser

Thomas Leiser, born in Madison, WI and raised in Houston, TX graduated from the University of Wisconsin-Madison and the Executive Program of Columbia University.  He has held various positions in Sales and Marketing at Procter and Gamble, Kerr-McGee Corporation, and VEBA AG (now E.ON). Currently he serves as Geschäftsführer for SGA Chemie, a trading company in minerals, petrochemicals, and minerals. After commuting commuted between the USA and Germany since 1999, he relocated permanently to Hessen, Germany in 2008.  Mr. Leiser has been active in Republicans Overseas since 2010.  He is an officer in the National and Local American German Business Clubs, The Steuben-Schurz Gesellschaft, AmCham and Die Brücke.  Mr. Leiser since its founding volunteers for the AGBC sponsored Entrepreneurs of Tomorrow program.  He is happily married and has a son and a daughter.

Secretary: Ute Vogler

Ute’s studies include languages (English / French / Spanish) with focus on economics. She worked in the field of Economic Development and Trade Promotion for various U.S. states for 20 years (1979 – 1999).

Since 2000 she has been the owner of Mainoffice Business Center, the administrative office of AGBC Frankfurt & has acted as Secretary since 2003. Ute is a member of the EoT Team & has been since its beginning in 2008.


Sponsorship: Jim Tiedeman
Jim is an active part of the wider AT&T EMEA Organization. He has over 15 years leadership experience in the telecommunications marketplace, both in the US and Europe. Active in the  American Institute for Contemporary German Studies at Johns Hopkins University, German American Chamber of Commerce, Student Mentor & Speaker EoT and VP -German American Business Club.

Marketing & Public Relations: Claudia Boehnert

Claudia Böhnert is the owner and Managing Director of Courage Strategieberatung. Together with her team, she advises law firms and companies – nationally and internationally. She is one of the leading PR and marketing consultants in the professional service sector and is regularly quoted in the media. She has over 20 years of experience in international top 10 network agencies, most recently in executive positions. 

Website & IT: Steffen Fasselt

Steffen Fasselt is Online marketer, self-employed, husband, father, cyclist, reader and Brazil fan – lives and works in Frankfurt am Main. He founded his company sdWebdesign in 2010 and since then developed numerous successful websites with great people.

Project Manager Entrepreneurs of Tomorrow: 

Legal Counsel: Ralph Hummel

Special Events: Susi James