

Your vision, our expertise.
How We Started
What began in 2005 as a humble services firm catering to gas-related needs and construction essentials, soon evolved into something far greater under the leadership of the Baisa siblings. In January 2021, they embraced a bold rebranding, transforming into ‘Blvck Space Contractors,’ marking the beginning of a new era in which functional spaces were reimagined as luxurious, awe-inspiring environments.
Their unwavering vision for excellence continued to drive success, inspiring another identity shift in August 2021, when ‘Alto Contractors Corporation’ was born—a name symbolizing the peak of craftsmanship. Over two decades of expertise have firmly established Alto as a luxury brand in the Philippines, with an impressive portfolio that reflects their commitment to perfection. Fueled by a talented global team, Alto thrives on the trust of its clients, creating spaces that not only embody beauty and innovation but resonate deeply with personal vision, values, and lifestyle—where every project is a masterful creation and luxury is redefined.
Vision
Crafting Dreams, Building Legacies.
Our vision is to set the standard in luxury construction, creating timeless masterpieces that embody elegance and reflect our passion for perfection.
Mission
Inspiring Elegance, Crafting Timelessness.
Our mission is to transform visions into reality, crafting exceptional spaces that inspire and elevate luxury to new heights.
Allysandra Baisa-Rabaya
Founder & Chief Executive Officer
With a refined eye for design and an uncompromising commitment to quality, Allysandra Baisa leads Alto Contractors Corp. as both visionary and builder. As CEO, she brings together architectural insight, strategic planning, and hands-on project management to deliver spaces that are both elegant and enduring.
Her portfolio includes luxury homes, bespoke condominium renovations, high-end commercial spaces, and celebrity interiors, each project reflecting her ability to blend function with timeless design. Clients value her for being deeply involved, detail-oriented, and intuitive—able to turn a client’s vision into a finished space that exceeds expectations.
In 2019, Allysandra received international recognition in Singapore for her work in design—an early nod to her growing influence in the industry and her leadership in redefining construction standards in the Philippines.
Today, Alto stands as a trusted partner for discerning clients who seek a high-touch, design-forward approach to construction.
Every detail matters. Every project, personal.
Alto Contractors Corp. © 2021