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About Us

Who We Are

With over a hundred professionals, and more than 250 projects globally; QSI is known for its brand of Integrity, and Quality that provide world-class digital cost estimating, project management, and engineering services to each valued client.


To be the preferred Cost Estimating and Project Management Consultancy Company adhering to the highest form of engineering standards while providing cost-effective technology - based solutions to construction projects worldwide.


INTEGRITY: The Company is founded on the value of integrity in all aspects of its operations. Employees are required to comply with integrity checks to ensure honest and credible services.

PEOPLE EMPOWERMENT: The Company provides opportunities to the employees to become stakeholders of the company and continue to develop their technical & management skills.

RESEARCH AND DEVELOPMENT: The Company focuses on research & development driven by the innovative ideas of the employees.

ACCURACY AND QUALITY: The employees adhere to the highest standard of estimating practices to maximize returns to our clients and ensure successful completion of projects.


Chairman of the Board

Mr. Aguirre is a business management executive with over five decades of experience in the fields of Accounting, Audit, Corporate Planning and Management Services. He began his career as an Auditor in the prestigious Sycip, Gorres & Velayo, Co. (SGV) in the sixties where he moved up as Associate Consultant. In the seventies he served as Controller and Corporate Planning Manager for Solid Mills, Inc. and United Textile Mills. In 1969, he established Management Dynamics, Inc. and served as the Senior Vice-President until the 1980s. They managed companies from the commercial and service trades. From 1990 to 2012 he was the President of Singa Ship Management, ranked as one of the top ten manning companies in the Philippines. Singa Ship is a manning company providing officers and crew to luxury cruise vessels. Currently he is also the President of Aplaya Laiya Corporation and Chairman of the Board of Wolfland Resources, Inc.

He graduated from the University of the East with a Bachelor’s degree in Business Administration and finished his Masters at the University of the Philippines in 1970. He placed 11th in the Certified Public Accountant’s Board Exams in 1963.



Mr. Jamandre is a civil engineer with 20 years of construction estimating experience from well-known local companies such as DM Consunji, Ayala Land and Pacific International. He has also completed various multi-million dollar projects abroad mainly from the US Department of Defense and US Federal Aviation Administration. He placed 9th in the 1998 Civil Engineering Licensure Exams. He is a professional member of the Royal Institute of Chartered Surveyors and a member of the American Society of Professional Estimators.

Some of the notable projects he has completed are the following: Serendra Phase 3, Verdana Homes and Celadon Residences with Ayala Land Inc.; Rockwell Center and International School of Manila with DM Consunji Inc., Bellevue Bohol, Two Seasons Palawan, Alveo Headquarters, Forbes Media Tower, Amata Kabua International Airport in Marshall Islands;; US Naval Support Facility in Diego Garcia, U.S. defense projects in Kyrgyzstan and Burj Vista in Dubai just to name a few.


Vice President for International Sales

Mr. Cleveland is a seasoned civil engineer from the University of Washington in Seattle, USA. He has more than 30 years of construction experience ranging from private, public and military construction projects. He holds an Advanced Project Management and Negotiations certificate with the US Army Corps of Engineers and is a member of the Construction Managers Association of America and American Society of Military Engineers – Seattle Chapter.


Vice President for Engineering Operations – Project Management

With almost 40 years’ experience in the General Construction and Engineering Works, Engr. Presinede is both an electrical and civil engineer at the same time. Started his career as an estimator and project engineer with the China Banking Group (DEE Construction Corp.) in 1975, and with more than 15 years of experience in Saudi Arabia, Iraq, Oman, and United Kingdom; his knowledge in cost engineering and project management is truly world-class.

Prior to his involvement with QSI, Engr. Presinede was the Chief Operating Officer of BF Corporation, Vice President for Const. Engineering and Maintenance of Makati Supermarket Group of Companies, Vice President – Head of Operations of the MDP Contracting Corporation, Project Manager and MEPF Consultant of Pimentel & Associates Engineering CO. which was responsible for handling The Philippine Arena (52,000 seats), Philippine Sports Complex (30,000 seats) and a whole lot more.

As the Vice President for Engineering Operations of QSI, he is the leader for handling the project management for the multi-billion dollar project of Global Gateway Development Logistics City, in Clark Pampanga.