Tashjian Towers History

Tashjian Towers Corp. has two divisions to the business- The primary focus is to provide professional engineering services. The second division, the manufacturing division, provides towers.


2765 S. Temperance Ave.
Fowler, CA 93625


(559) 834-4300



Tashjian Towers

Karl Tashjian

I worked at Tri-Ex Tower Corporation from 1985 to 2000. While at Tri-Ex, I was the engineer of record for hundreds of towers. While at Tri-Ex, I worked on tower designs for the amateur radio, cellular, FM, TV, AM radio, and the US Army.

In 1997, International Tower was formed from Tri-Ex Towers and S&G Communication. ITI specialized in tall towers for the broadcast industry. While at ITI, the engineering group which I was in charge of engineering and designed several candelabrum towers approximately 2,000 feet tall, 1860′ tower 10′ face tower in Louisiana, a 1,000 foot tall candelabrum in downtown Atlanta guyed at 35%, along with many other tall heavy towers.

In January of 2000, SpectraSite Broadcast group purchased International Tower Inc. SpectraSite closed the engineering offices at the Tri-Ex plant in Visalia in October of 2000, at which time I began consulting full time. The old Tri-Ex Towers Corp. was dissolved in California so I incorporated as Tri-Ex Towers Corp. in California in Jan. 2002. In Jan. 2003, I changed the name of the corporation to Tashjian Towers Corporation.

Tashjian Towers

Our Staff


Tammy Yrigollen

Lead Designer since 2000

Norman Tashjian

Admin Manager since 2013

Mauricio Calderon

EIT-B.S. in Civil Engineering, since 2017

Manuel Gonzalez

Design Engineer since 2020


Ross Carlisle

Foreman, 15 years at Tri-Ex | 9 years with Tashjian Towers Corp.

Kevin Collins

Welder, 15 years at Tri-Ex | 9 years with Tashjian Towers Corp.

Matt Vasquez

Contstruction Foreman since 2009

Peter Ochoa

Construction Associate since 2017

Robert Garcia

Fabrication Associate since 2014

Charles Robinson

Fabrication Associate since 2017

Dan Robinson

Fabrication Associate since 2017