Our History & Legacy
Incorporated in 1980 by Pedro and Fe Ada, Ada's Trust & Investments, Inc., builds upon a family business legacy that transcends three generations since the mid-1940s. As Pedro Ada, our founder, wisely stated, "Our reputation is our greatest asset." We strive to deliver excellence as commercial property landlords, maintain fair business practices, make sensible investment decisions, and contribute meaningfully to the island.
Our Purpose
Founded on core values of faith, family, and community, Ada's Trust & Investment, Inc. carries forward Pedro Ada's legacy of unwavering integrity and excellence. The company is guided by his vision of sustainable business growth and generational transition, achieved through fair business practices, operational efficiencies, and sensible investment decisions. Supporting church, community and humanity are legacy traits the company will continue as a family business.
As a real estate and investment company, Ada's Trust & Investment, Inc. is a proven name in Guam's business community. Built on decades of experience and local expertise, leading companies choose Ada's Trust & Investment, Inc. for their business home or for a business partner.
Our Core Values
Faith
We honor our purpose by trusting in God's guidance and doing work that reflects His values.
Family
As a family-run business, we lead with heart—treating others with the same care we give our own.
Community
We invest in the growth and well-being of our island, believing strong communities build lasting legacies.
Humanity
We see people first, valuing empathy, respect, and kindness in all our relationships.
Integrity
We do what’s right, even when no one is watching—upholding honesty and fairness in all we do.
Excellence
We strive to serve with quality, professionalism, and a commitment to doing our best every time.
Meet Our Team
P. Sonny Ada
president
Patricia Ada
VICE PRESIDENT /
CHIEF FINANCIAL OFFICER
Lelia San Nicolas
General Manager
Joe Nowell
Property &
Projects Manager
Board of Directors
From top (left to right): Dr. Frances A. Purviance, Teresa A. John, Patricia P. Ada, Maria A. Bonnie, Carla P. Ada, P.Sonny Ada
For Inquiries Contact
120 Father Duenas Ave.
Ada’s Capitol Plaza Building, Ste. 101
Hagåtña, Guam 96910
(Phone)
(Fax)
1-671-472-9830
1-671-472-9834
HOURS OF OPERATION
Monday – Friday: 9:00 AM – 4:00 PM