Who We Are

Architects Pacific, Inc. (API) is a dynamic architecture firm located in Honolulu, Hawaii. We pride ourselves on being a firm that treats its clients, employees, and surrounding community like ‘ohana.

We are designers based in sustainable and creative solutions that meet, if not exceed, the needs of our clients’ fast-paced and challenging real world issues. We believe and practice excellence, transparency, and aloha. Our goal is to always live by and hold our work to these values and principals, thus sharing these beliefs with the people impacted by our designs.

A Name You Can Trust

We are a kama'aina firm with nearly 30 years of service to clients in Hawaii and the Pacific.


Years in Business

Established in 1988, we’re proud to be a part of Hawaii’s amazing heritage.

Projects Completed

We see every new project as an opportunity to grow professionally and personally.

Average Years of Experience

Our employees are our 'ohana.

Committed to Our Clients' Success

In Hawaii and throughout the Pacific, we treat all of our clients with aloha.

Client Testimonials

Our track record of satisfied clients is a testament to our ability to solve challenging problems.

  • Lorna Sikorski
    “(The) project was designed twice at two different sites. The final site was a challenge… (API) was able to come up with a design concept that addresses all environmental concerns and issues. (API) was also very responsive to all questions and RFIs.”
    Lorna Sikorski
    U.S. Navy, NAVFAC Pacific
  • Bernadette Julian
    “(API) overcame these specific project challenges along with many others during the redesign process and provided contract documents of exceptional quality while at the same time making adjustments to adhere to the project schedule requirements. (API) and their team was always professional, cooperative and responsive…despite the various challenges and inquires put in front of them.”
    Bernadette Julian
    U.S. Navy, NAVFAC Pacific
  • Robert J Gries, P.E., CMM, PMP | Project Manager
    “Your firm’s professionalism and 'can do' attitude are, in my honest opinion, outstanding. Additionally, your staff has an innate ability to solicit input from your clients in a positive and team-building manner.”
    Robert J Gries, P.E., CMM, PMP | Project Manager
    National Oceanic and Atmospheric Administration (NOAA)

Our Team

John Adversalo

Mr. Adversalo is a Principal Architect responsible for the leadership and administration of the firm. He is in charge of architectural design and oversees all aspects of construction documentation, specification writing, and construction administration for the firm’s projects. Mr. Adversalo has provided architectural services for various agencies within the State of Hawaii; City and County of Honolulu; Maui, Kauai, and Hawaii Counties; Department of Defense; and numerous private sector clients.

Calvin Nishio
Vice President

Mr. Nishio has extensive experience in the design and project management of dozens of State and Federal government projects. Since joining the firm in 2002, he has undertaken a leadership role by guiding, teaching, and mentoring the firm’s other technical personnel. His detail to design, organizational, and managerial skills with his design team has made him the firm’s lead architect for numerous projects.