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Meet our Leadership Team

Bernardo Hirsch

Bernardo Hirsch was born in Buenos Aires, Argentina in 1948 to German parents. In 1958 his family moved to Germany and there, in the city of Bremen, he began his schooling years up to his graduation from college with a degree in Business Administration. Throughout his life, Bernardo has invested and participated in business endeavors in Central and South America ranging from the distribution and representation of heavy equipment parts of worldwide known manufacturers such as Cummins, Cummins Onan, Ingersoll Rand, Hyundai heavy equipment, amongst others, founded a Rental Company of heavy equipment, started a textile manufacturing company, represented airlines such as Lufthansa and Japan Airlines, created a power generation and distribution company, partner with a multinational Speciality Care Assistance company and has participate in real sate development.

Kristine Pak CPA

Kristine Pak joins Eleos as a Certified Public Accountant with over 25 years of private and public accounting experience spanning healthcare, insurance, software and manufacturing. Alongside Eleos, Kristine is the Chief Financial Officer for Pak Medical Group based in New Braunfels, TX. She previously served as Controller for P3 Health Group which focused on delivering patient-centered care and Asst Controller for Midwest Employers Casualty Company. In her spare time, Kristine enjoys playing tennis and golf with family and friends.

Tomasa O'Hern

Joining our team with over 30 years of experience in the medical field, Tomasa has been an entrepreneur since 1998. Alongside her husband Jerry O’hern, Tomasa has opened multiple businesses within multiple sectors of the market. Starting in 1992 working for an ophthalmologist in her hometown of Kerrville TX she grew a love for the medical field. This led her to open her first business OMB, a turnkey RCM at age of 21 in San Antonio, TX. Throughout the 15 years alongside her RCM, she co-owned an IT and EMR company. She moved back to Kerrville Tx in 2011 to be closer to family where she went on to own her restaurant and clothing boutique.

During her free time, Tomasa enjoys spending quality time with friends and family. She also enjoys spending time and going on walks with her three dogs.

Siegfried Hirsch

A dynamic executive with profit and loss responsibility, experience in strategic planning, business development and sales in the energy and retail fuel industry. As a leader, he works closely with collaborators to identify opportunities for professional growth and assure a top-performing team. Siegfried has worked as the president of Estaciones de Servicio de Centroamérica (ESCA) since 2014 where he is responsible for strategic growth initiatives as well as financial and operating budgets for fuel, convenience store, and real-estate business units within the organization. He has also worked as the vice-president of Grupo Laeisz since 2007 where he oversees its business and financial performance in the power generation sector.

He enjoys tennis, running and outdoors sports.

Gustavo Lara Guevara

With 30 years of experience in general management, marketing, and sales, Gustavo has endeavored in several entrepreneurial activities throughout his career in consulting, restaurant business, and agriculture. His experience in several industries such as telecommunications, insurance, public relations, and Call Centers/BPOs has nourished his interpersonal and operational management capabilities making him a great asset to the ELEOS team.

Gustavo enjoys his free time surrounded by his wife, Lorena, and his three children, Fabiana, Gustavo, Felipe, and good friends. Loves playing tennis and passionate soccer fan.

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