Coffman MAI Signing
Coffman’s Honolulu Managing Principal, John Thielst, welcomes Miyashiro and Associates owner, Nick Allday, to Coffman Engineers.

Miyashiro and Associates Joins Coffman Engineers through an agreement that was finalized on March 11, 2021

HONOLULU, HAWAII, March 11, 2021 — Coffman Engineers is excited to welcome Miyashiro and Associates to the company. The mechanical engineering firm joins Coffman through an asset purchase agreement that was finalized on March 11, 2021. We welcome Nick Allday, PE, and four engineers and designers to the Coffman ‘ohana. Their first day in Coffman’s Honolulu office was on Monday, March 15, 2021.

Coffman Engineers Announces Mechanical Engineering Firm’s intent to join firm

HONOLULU, HAWAII – February 9, 2021 – Coffman Engineers announced they have reached a definitive agreement with Honolulu-based mechanical engineering firm, Miyashiro and Associates, to join Coffman. The asset purchase agreement is planned to close on March 11, 2021.

Incorporated in 1994, Miyashiro and Associates is a Hawaii-owned and operated consulting mechanical engineering firm providing services throughout the Pacific Region. Miyashiro and Associates has a varied background in the planning and design of mechanical systems for many facility types. Their experience in the military, commercial, and hospitality markets align well with Coffman’s focus in Hawaii and throughout the Pacific Region.

The two companies have existing relationships between staff, are pursuing projects together, and share some of the same clients. Through discussions that began in 2019, both firms agreed that joining forces would benefit clients and provide additional opportunities for employees.

Nick Allday, Owner of Miyashiro and Associates.

“Miyashiro and Associates is a great group and owner, Nick Allday is a respected local business leader. It is important for us to find partners that share Coffman’s vision, business culture, and technical excellence. We have found that with Miyashiro and Associates,” John Thielst, Vice President, Managing Principal of Coffman Engineers Honolulu and Guam.

“Our goal has always been to be a client-focused, solutions-oriented company. The combination of Miyashiro and Associates and Coffman brings relationships together, broadens our capabilities, and deepens our exposure in existing and new markets,” said Nick Allday, Owner of Miyashiro and Associates. “We believe our clients will benefit tremendously from this partnership.”

Nick Allday, owner of Miyashiro and Associates will join Coffman as a principal and join Bill Lee, department manager and principal in leading the Honolulu mechanical engineering department. Four additional employees from Miyashiro and Associates will join the Honolulu office after the deal closes.

Dave Ruff, CEO, and President of Coffman Engineers stated, “I am excited to join forces with Miyashiro and Associates. Nick has built a respected company in Hawaii and I am particularly excited to have him continue that legacy of excellence and service with Coffman. I can’t think of a better partnership for the Honolulu office and the mechanical group.”

Join us in welcoming Miyashiro and Associates to Coffman Engineers!

Highlights of this deal:

  • November 10, 2020 – Signed Letter of Intent.
  • March 11, 2021 – Deal Closing.
  • March 15, 2021 – Miyashiro and Associates employees become Coffman employees and move to Coffman’s Honolulu office.

For more information, view the Press Release and Fact Sheet linked in the sidebar.


About Miyashiro and Associates

Miyashiro and Associates, Inc. is a local consulting mechanical engineering firm, licensed in the State of Hawaii and established in September 1994 providing services in Hawaii and throughout the Pacific Region. The scope of Miyashiro and Associates services include planning, engineering, design, drawings, specifications, cost estimating, studies, energy analyses, and construction administration. Technical specialties include air conditioning, ventilation, plumbing, fueling, process piping, and medical gas systems.

Miyashiro and Associates has a staff of six personnel with experience in technically challenging projects. They have participated in various teams that have successfully executed different types of projects and are aware of all state, federal, and local project requirements.

Miyashiro and Associates has a wide and varied background in the planning and design of mechanical systems for many facility types. This experience includes new and renovated facilities in Hawaii, Guam, Saipan, Japan, Okinawa, Singapore, Korea, Roi Namur, Kwajalein, Palau, Pohnpei, Midway, Johnston Island, Majuro, and other areas with similar climatic conditions.

About Coffman Engineers

Coffman Engineers is a multidiscipline engineering consulting firm that integrates many disciplines including civil, structural, mechanical, electrical, fire protection, and other specialties to offer clients local, high touch service and a scalable array of services. The company has 588 employees in 17 offices that serve clients across the U.S. and internationally. For more information, please visit or follow us on LinkedIn, Facebook, Instagram, and Twitter.