Our Advantage

We give our clients solid reasons to call us back again.


Lefko Construction is a family owned commercial construction company. Founded in Venezuela, South America in the 1950’s, we have grown to a third-generation company based in Atlanta since 2003.

With extensive experience in the construction industry, real estate, and business ventures, we operate on the highest level of professionalism.

We provide commercial construction, build-outs, commercial renovations, and site development in several project markets.


Maintain the highest standards of integrity in our client relationships

Dedication to deliver extraordinary customer service

Adhere to business fundamentals, track market dynamics and industry trends closely

Focus on value added opportunities to strengthen project budgets

Actively engage within our communities to remain informed and responsive to unique needs and opportunities







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Atlanta Technical CollegeBerkshire Hathaway HomeServicesBrookhaven GAInsignia of Sandy Springs Senior LivingDekalb County School DistrictCity of Dunwoody
Segal GroupSugar Oak HomesTowersourceUrbana Wellness Spa



Born in Austria and raised in Venezuela, Tomas came to the US to obtain a BS & MS in Civil Engineering (NYU), an MBA (Mercer), and MS in Finance (GSU). In Venezuela he served as President of Zulia State Chamber of Commerce and held many Board positions. Tomas is a serial entrepreneur with multiple business ventures in South America and the US. In 2004, he co-founded the LEFKO Development (DBA Lefko Construction) with two of his sons. LEFKO Development is a Founding Member of the Georgia Hispanic Construction Association and Tomas was an active Board Member for several years. He is active in social causes, human rights committees, the Jewish community and past President of Hemshech, the Atlanta organization of Holocaust Survivors and their Descendants. Tomas loves spending time with his grandchildren and is fluent in Spanish, Portuguese, French, Hebrew & Hungarian.

Tomas Lefkovits


Born and raised in South America, Marc developed a passion for construction and real estate working with family ventures in Venezuela. After receiving a degree in Industrial & Systems Engineering and Certificate in Economics from Georgia Institute of Technology, Marc was recruited by General Motors where he received the Chairman’s Honor award, GM’s highest employee recognition. Then, he co-founded LEFKO Development in 2004 with his father and one of his brothers. Marc served on the board of the Anti-Defamation League for the Southeast region and belongs to Congregation Or Hadash where he served as a Board Member. He also holds a Georgia Real Estate License. Marc enjoys swimming, tennis and his kids, and speaks Spanish, French and Hebrew.

Marc Lefkovits


Andreina is a dynamic, resourceful Civil Engineer with strong management skills. She has over 19 years of experience in the construction industry and brings a wide diversity of knowledge to the team. Her expertise ranges from Field Engineering to Project and Construction Management with expertise in Structures, Materials Resistance, Dynamics, Static, Structural Project, Construction, Project Inspections and Grounds. Andreina spends personal time on the course enjoying golf, reading and most importantly playing with her daughter.

Andreina Mendez

Senior Project Manager

Eduardo is an Architect with over 20 years’ experience ranging from architectural design and construction to engineering site management. Working in the healthcare industry for a number of years, Eduardo developed a precision, detail-oriented skill set to managing projects, teams and job site preparedness. His ability for quick problem recognition and resolution has been a foundation of his project successes. Eduardo has a B.S. in Architecture from University of Zulia, Maracaibo, Venezuela. He is a fluent communicator keeping his team and owners clearly informed throughout the entire project.

Eduardo Ajjam

Project Manager

Gabriel is a Civil Engineer with excellent client and project management skills and solid decision-making qualities. Action-oriented with a natural ability to communicate with clients and team members. Gabriel’s strength is in successfully managing resources, creating streamlined schedules and maintaining budget control on his projects. He has a B.S. in civil Engineering and academic accolades that placed him in the Top 10 of his graduating class. Gabriel enjoys many sports but loves baseball. He played Second Base and Short Stop for years growing up.

Gabriel Antunez

Project Manager

Orlando Marquez


Karla is a Civil Engineer with 11 years’ experience as a Project Engineer. She is a natural leader with well-organized communication, systematic and calculated planning abilities, and cost control awareness. Karla has a strong background in cost estimation, value engineering and budget containment. She has notable experience in concrete and steel structures. Karla has a B.S. in Civil Engineering from Lisandro Alvarado Centroocidental University - Barquisimeto, Venezuela. In her free time she enjoys spending time with her family, cooking and and going to movies.

Karla Perez

Giuseppe 1

Giuseppe is a Civil Engineer with a history of organizational excellence. He enjoys working with numbers and brainstorming value engineering solutions to bring a project to a successful budget. He received his B. S. CumLaude in Civil Engineering from Rafael Urdaneta University in Venezuela. Giuseppe is currently on his 2nd year of his MSc in Construction Project Management. Giuseppe has a keen ability to manage several estimating projects at one time, keeping track of construction documents and communicating with numerous subcontractors. Giuseppe loves spending time with his family, enjoys sports and many outside activities.

Giuseppe Ceccarelli

Project Estimator
Hisham copy

Hisham is a Civil Engineer with a mind for strategic thinking, scheduling and analytics. He has 6 years experience in construction and he brings his expertise in unit price analytics to the team and reinforces our pricing and cost controls for our clients. He has a B. S. in Civil Engineering from Universidad Rafael Urdaneta, a diploma in Finance Management and is working on his MBA. He has additional training in leadership management, HSE and QHSE specifications and standards. The past three years he has been working in Riyadh, Saudi Arabia. Hisham enjoys reading books on business and politics, working out and following a few baseball and soccer teams.

Hisham Yauhari

Project Estimator

Argenis is an Architect by education. His advanced training and experience in CAD and structural modeling brings a higher level of detail to our take off methods. Providing our estimating team with more accurate numbers resulting in more efficient project cost control. Argenis has Bachelor of Architecture from University of Zulia, Venezuela. He is an accomplished artist outside of his workday and has an interest in sustainability and the environment.

Argenis Toyo

Project Estimator

John brings extensive skills in leadership and project organization to the LEFKO team. His 42+ years working with Georgia State University, the last 15 as Associate Director for Facilities, proves valuable in our client relationships. Working in a personal and dynamic field like higher education has led him to appreciate quality teams and strong interpersonal skills that are essential to LEFKO construction methodologies. John grew up in Belle Plaine, Iowa, came south after graduate school at the University of Iowa and never left. John is married, lives in Marietta and has two adult children. He enjoys woodworking, travel and all kinds of sports.

John Krafka

Manager, Business Development