About Us

Our success is due to our local knowledge, technical diversity, and a passion for our work.

Clients in 8 countries

Working in 70+ cities

+89,115,000 ft² // + 8,293,000 m² 

in projects

View Projects

What is "A new way"?

SUMAC's slogan describes the way in which we understand the world and act accordingly. The attitude we take when performing our daily activities keeps us consistent with our values and allows us to offer our clients the highest quality services.

Consume less.

Sustainability is at the center of all of our services, which is why we adopt and promote sustainable consumption practices.


Where others see obstacles, we see opportunities. We don’t run away from challenges, but rather find the way to turn our client’s projects into reality.

Be local.

Understanding the communities and markets where we work is fundamental to offer a service that aligns with culture and specific needs.

Take action.

Planning is important, but to obtain results we need to act. At SUMAC, we don’t hesitate to open ourselves to new markets and take on innovative projects; it’s “the SUMAC way”.

Our company

SUMAC began in 2002 as a construction company in Chicago. Those early experiences as contractors provided us with the expertise to enter new and larger markets. Today, we have grown to become a multinational company, present in countries all around the Americas, including Mexico, Argentina, Chile, Colombia, Ecuador, Peru, and the United States.

We provide real estate development, owner’s representation, architecture, as well as consulting in sustainability and energy efficiency services. With more than 83 million ft² in successfully completed projects, we have continuously proven our ability to make your construction process more efficient, design your idea from conceptualization to completion, and obtain any level of internationally and locally recognized green building certification that best suits your project.

Having sustainability as our priority, at SUMAC, we strive for designing, creating and managing real estate that meets the needs of expanding populations and economies in the present without compromising those of future generations. Our solutions-driven team is dedicated to providing the highest quality services and ensuring that our your goals are achieved.

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President // Partner

Roy Donoso

Roy Donoso has experience as an entrepreneur, architect, and builder in the United States, Latin America, and Europe.

Roy’s professional responsibilities have included business development, marketing, capital raising and funding, project management; as well as construction management and field supervision. 

At SUMAC, Roy manages business relations, deal structuring, contract negotiation, corporate strategy and overall business development in the United States, Latin America, and Europe.

Director // Project Leadership

Nick Georgiou

Nick is a licensed architect since 1982, with a broad background in all phases of new construction, complex rehabilitation, and remodeling. Experience includes aviation, industrial, municipal, commercial, retail, and residential occupancies. Responsibilities and roles include Owner’s Representative, Project Principal, Project Manager, Architect, and Construction Administrator in multiple client environments.


Country Manager Colombia // Partner

Juan Rivera

Juan is a civil engineering professional with a master’s degree in Construction Management.

Juan has extensive experience in public procurement, management and project management, sustainable construction (LEED certification – EDGE), productive and administrative processes thanks to his more than 15 years as an entrepreneur.

Country Manager Peru

Carlos Bueno

Carlos has several years of work experience in the financial industry in Peru and the United States, currently, Carlos is responsible for the operations of the Peru office.

General Manager Argentina // Operations Manager for Ecuador, Argentina, Chile and Peru

María Paz Otero

Maria Paz is a specialized architect in sustainability. She completed a Master’s Degree in Architecture and Sustainable Habitat, she is also a LEED Certified and participates in several projects in Argentina and Chile.

Paz has experience in architectural design, project manager, construction administration and energy audit. María Paz took sustainability as a life project, from the side of teaching and research at USAL (Universidad del Salvador). She also makes her own natural products at home to avoid chemicals.

Sales Director Ecuador, Argentina, Chile and Peru

Gracia Roldan

Gracia has more than five years of experience in the field of construction. The passion for sustainability and healthy living has led to motivating people to follow this line of life and encourage sustainable construction. Gracia is certified as a LEED Green Associate.

Operations Manager Colombia

Catalina Morales

Chemical Engineer and Environmental Engineer graduated from Universidad de Los Andes in Colombia. She currently serves as Operations Manager in Colombia. Catalina has over 8 years of experience, high knowledge in Colombia’s sustainable construction market and she is an accredited LEED Green Associate professional.

She also works as an expert advisor in the construction and development of projects so that they can obtain benefits offered by the Colombian Government to sustainable and energy-efficient buildings projects.

Engineering Manager for Argentina, Chile, Ecuador and Peru

Gonzalo Lema

Engineer specialized in managing Mechanical and Electrical projects, Commissioning, Energy Efficiency, Building Management Systems and Air Conditioning.
Responsible, proactive and able to work with minimal supervision in multicultural teams. At SUMAC, Gonzalo has been part of different renewable energy projects (solar fields) in Chile.

Marketing Director

Camila Fernández

Camila has a degree in Marketing with a Master in Digital Marketing e-commerce at the University of Barcelona. She has extensive experience working in marketing with global consumer brands for companies such as L’Oréal, Alicorp, Bio Oil, P & G, among others. She is in charge of providing the best service to our clients, guaranteeing their satisfaction from the first moment of contact with SUMAC, until the fulfillment of our services. She is interested in the development of global projects to improve social welfare.

She is a restless and curious person that has led her to live in Australia and France, where she currently resides. She is fluent in Spanish, French and English.

Administration & Business Development

Business Development

Federico Meneses

Civil Engineer graduated from the Universidad de los Andes in Bogotá – Colombia. He has great passion in management, innovation,
development, bidding for projects and sustainability.

Federico has knowledge in management strategies, project development and seeks that the projects in Colombia follow the guidelines of sustainability.

Administrative and Accounting Analyst

Isabella Chaves

At SUMAC, Isabella is in charge of overseeing administrative processes and implementing new organizational procedures to facilitate customer service, in addition to carrying out the company’s accounting management, always seeking efficiency and effectiveness.

Business Development Assistant

Milena Maldonado

Milena is part of SUMAC in the area of business development as a systems assistant with experience in sales, after-sales service and customer service.

Marketing // Graphic Design

José Zapata

José is a graphic designer with more than 7 years of experience working for different clients with different business areas.

Passionate about illustration, fashion, and art, José brings the best of his experience to the SUMAC team day after day.

Business Development

María Pía Secotaro

María Pía has a degree in Administration and is currently studying a master’s degree in Project Management. She is interested in developing professionally in the sustainable development of projects to improve social and environmental well-being. María Pía enjoys spending time in contact with nature and outdoors.

Project Leadership

Mechanical and Electrical Engineer

Luis Alvarado

Mechanical and Electrical Engineer by profession from the National University of Engineering (UNI), with a postgraduate degree in Project Leadership, Maintenance and Quality at the same university. Luis has a lot of experience in construction, project management and remodeling of the public and private sector in Peru, Chile, Colombia and Ecuador.


Julián Araujo

Architect graduated from the faculty of architecture of the Peruvian University of Applied Sciences (UPC). High technical capacity, committed, methodical, organized, and oriented to action and results. Julián knows how to work as a team through constructive and trustworthy interpersonal relationships thanks to his rapid adaptability to any work environment.

Project Director

Luis Carreón

An architect by profession at the Peruvian University of Applied Sciences with a postgraduate degree in Construction Management and an MBA from the UPC.

Luis has extensive experience in the evaluation and management of construction projects. He led real estate projects nationwide, participating in the negotiation and acquisition of real estate assets with operating cash flows. In addition, Luis has experience in management with municipal, rural and associated associations.

Constructor Field Supervisor

Jorge Gastelú

Civil Engineer with more than 10 years of experience in infrastructure projects of great importance in the field of hospitality, retail, industrial plants, buildings and mining with experience as a work resident.

Construction Engineer

Renzo Rabines

Renzo is a person with solid integral formation in leadership, initiative, responsibility, communication, punctuality, effectiveness and with clear goals.

Renzo is a dynamic person with the ability to work in any area that is assigned to him.


Tomás Sahuaraura

Electrical engineer with experience in buildings of various types, including shopping centers and offices.
Tomás has great leadership skills and the ability to integrate and work as a team, providing creative solutions by applying engineering techniques and tools.



Leslie Berdiales

Collegiate architect with specialised in Bioclimatic Design from the University of Cardiff in the United Kingdom. Account for the LEED AP ID + C accreditations, EDGE expert and auditor.

Her responsibilities and experiences include architecture, development of real estate projects, and consultancy in bioclimatic design, sustainable certifications such as LEED and EDGE in various projects, including state institutions, corporate buildings, buildings for rent or sale, colleges, universities, department stores and shopping malls .


Esteban Cervantes Toledo

Esteban is a professional architect interested in architectural design, research, and teaching, with a focus on sustainability. Graduated by the Higher Technical School of Architecture of Madrid, ETSAM, he obtained his Master’s degree with a specialization in Advanced Architectural Project Design in 2014.

Has 10 years of experience as a developer of projects of different architectural typologies such as offices, housing, commerce, education sector and urban and landscape projects both public and private. He participates in several projects in Ecuador and Peru.

Technical Area Assistant

Lizbeth de la Cruz

Lizbeth is a graduate of Architecture from the National University of Engineering (UNI). She participated as bioclimatic manager in the Játi project (finalist team in the Solar Decathlon Latin America 2019).

Currently, he participates in the course “Architectural Design for Energy Efficiency in Buildings”, which is part of the training program supported by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU). He is also the leader of Mashay, an enterprise that supports the dissemination of sustainable practices.


Jaskran Kalirai

Jaskran Singh Kalirai is a British architect, son of Punjabi parents, who arrived in Ecuador in 2002.

Jazz received a remarkable academic training at Leeds University, England, and the University of Pennsylvania, United States. During his training, he had the opportunity to be a student of great architects such as Enrique Norten and Daniel Libeskind, with whom he worked on the World Trade Center Memorial project, after the attacks of September 11, 2001, in New York. In the same city, Kalirai worked as a corporate project designer at the international architecture firm KPF.


Kate Troutman

Kate is an architectural designer with experience in commercial, educational, and dwelling projects, as well as research in the United States, Europe and Ecuador. Having received her post-graduate education in Architecture and Historic Urban Environments at The Bartlett School of Architecture University College in London, she has a special interest in adaptive reuse.
Kate’s responsibilities include the design, development, and documentation of projects.  

Lorenzo Villoslada

Lorenzo has been part of the SUMAC team since 2013. He has been working as Project Manager in the development of projects that seek LEED certification in Ecuador and Peru. Lorenzo has participated in corporate projects, interior commercials, universities, housing in both the private and public sector.

Lorenzo has the acreditations LEED AP DB+C, ID+C, EDGE Expert and Auditor and Fitwel Ambassador


Nicolás Vivas

Nicolás is a designer with more than 8+ years in architectural design specialized in a wide range of typologies of low and mid-rise buildings including residential, commercial, hospitality and interior design projects in Ecuador, Peru, Italy, and the United States.

He completed a Master’s degree in Industrial Design at Politecnico di Milano in Milan – Italy in 2017. After completing his program he worked for the American award-winning design studio Brooks + Scarpa based in Los Angeles – California developing residential, commercial and mixed-use buildings.

Architecture Assistant

Emilce Fernandez

Architect graduated from the University of Mendoza, Argentina. Emilce has experience in developing residential projects.
Emilce constantly seeks professional training, and has a passion about the sustainable aspect of architecture.

Architecture Assistant (intern)

Arlet Solanger

Arlet is an architecture student of the National University of Engineering (UNI) in Lima, Peru. She has experience in sustainable construction due to his participation in the Játi Project (Solar Decathlon Latin America finalist team). She is also part of a research team that applied to the 2021 Formative Research Contest convened by the Vice-Rectorate for Research of UNI (VRI).

Project Manager / Architect

Valentina Olondo

Valentina has excellent communication, organization and interpersonal skills with an ability to handle delicate situations with great initiative, she’s also fully committed when the situation requiers a person with strong problem solving skills thanks to her attention to details and creativity.

Claudia Vásquez

Collegiate Architect of the Pontificia Universidad Católica del Perú, with number C.A.P 14531. With studies in Project Management and Quality; in Construction Project Management and in Real Estate Management. Experience of more than 7 years in the real estate and construction sector, in development and supervision of projects of multifamily buildings, commercial, offices and urban facilities. Mastery of Autocad, Ms Project, Sketch up and Revit programs

Project Architect

Juan Diego Clavijo

Architect with a Master in Design and Architectural Theory from the University of Navarra. He has experience as a project coordinator in Peru, Chile, Mexico and Panama with an emphasis on architectural quality.
Juan Diego’s professional responsibilities have included: architectural design, project management in BIM methodology, architectural quality supervision, construction, and Facility Management.

Architecture Assistant

Fabiana Massó

Fabiana is currently working on her degree thesis to conclude her University work on Architecture and Urbanism. She is also studying to become a Real Estate Broker at the University of Mendoza in Argentina. Furthermore, she is interested in the three pillars of sustainability: environmental, social, and economical, and is interested in creating sustainable architecture following the rule of the three r’s: reduce, recycle and reuse.


Juliana Sarmiento

Professional architect from the Pontificia Universidad Javeriana, with experience in project design, with a great capacity for analysis and problem solving. Creative and motivated, with a focus on manual, layout and design work. Honest, responsible and charismatic person, interested in learning and growing professionally.

Sustainability Analyst

Alejandra López

Alejandra is an Architect graduated from the National University of Colombia, a professional interested and committed to Sustainability; She is a specialist in Bioclimatic Architecture and is accredited as Edge Expert and the local sustainability certification CASA.



Edwin Alvis

Mechanical Engineering, graduated from the Universidad Nacional de Ingeniería (UNI). Edwin apply his skills in the area of project management, specializing in energy analysis, energy modeling, commissioning and electrical engineering studies in general. Edwin has the LEED GA accreditation.

EDGE Coordinator

Carlos García

Civil Engineer graduated from the Francisco José de Caldas District University in Bogotá, Colombia. Carlos applies his skills in order to support the technical area in variety processes related to sustainable construction certifications.


Gianmarco Gutierrez

Gianmarco belongs to the SUMAC team since 2017 in the engineering area where he has been carrying out energy reviews and commissioning in several projects of different types, including corporate and retail offices.

Gianmarco is fluent in English and Italian and is passionate about mathematics, for which he has participated and won several competitions.


Alejandro Morales

Alejandro has worked professionally in the field of civil engineering, working in consultancy for sustainable construction projects. He has also developed activities in the course of his experience as technical supervision on site, advice on designs and sustainable construction as well as project management.

He is currently an accredited LEED AP BD + C professional and is part of the technical team providing advice to different projects in Colombia on sustainability issues such as integrated process, architecture, use of water resources and waste management during the construction of others.

Energy Modeling Coordinator

Santiago Sánchez

Mechanical engineer graduated from the National University of Colombia. Expert in energy modeling for buildings and commissioning agent.
Santiago has participated as a leader in various sustainable construction projects inside and outside of Colombia. He has also been a Panelist at the Colombian Council for Sustainable Construction and at the Ricardo Palma University of Peru.

Commissioning and Existing Buildings Coordinator

Nicolás Jiménez

Nicolás Jiménez is a mechanical engineer from the National University of Colombia, in Bogotá. He has extensive experience in the specification, selection and revision of HVAC systems in projects in several countries in Latin America, the Caribbean and the United States. Additionally, he has years of experience in sustainable certifications, leading Commissioning processes and assuring advice on projects in energy efficiency, indoor air quality and thermal comfort.

Mechanical engineer

Valentina López

Valentina is a Mechanical Engineer at SUMAC performing Commissioning and Energy Efficiency tasks.


Investment & Real Estate

Juan José Crespo

Ambitious, fervent, creative Architect, Development and Project Manager with 10+ years of success overseeing design and construction and of all types of properties and projects. Strong ability to identify appropriate locations and oversee projects from the planning phase through to launch of operations.

Dedicated, results-oriented, master-level business development consultant with an entrepreneurial mindset and over 10 years of success in the areas of business and operations management, new business development in real state and construction. Analytical, innovative professional with strong business acumen dedicated to leading teams in meeting and exceeding operational targets. Investment funding and high networking skills.

Our clients