MEET OUR TEAM

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Cory Yates | Co-Owner


Cory Yates has spent 29 years in the restaurant industry, in one form or another. Historically an entrepreneur, Cory has built and sold five businesses over that time, only to start anew with an increased excitement and vigor.
Most note-worthy, previous business endeavors include Accurate Chemical, sold in 2004, now a thriving juggernaut serving the restaurant industry throughout the southwest and Remington Restaurant Equipment Repair, sold in 2012. Lucrative in that industry approach, the current business venture is Alpha & Omega Restaurant Equipment Repair founded in 2015. Yates and co-owner and Edgar Martinez, lead technician for Alpha & Omega, seek to fill the gap between the larger, but less responsive companies and the unlicensed, uninsured “fix-it-all” guy.
The theory for Cory is to be customer centric. “Bend when you need to and give back to those who trust you with their own livelihood. Build relationships based on that trust and typically, all the results take care of themselves”.
Steady growth and a solid reputation for an unparalleled customer experience, industry revered skills, teamwork and accurate communication are, and always will be, Alpha & Omega’s goals. While other companies strive to be the largest in Arizona, Alpha & Omega Restaurant Equipment Repair strives to remain the very best.

Edgar Martinez | Co-Owner

Edgar Martinez has been a consistent leader in the restaurant repair and HVAC industry for 24 years. Now the Senior lead technician with Alpha & Omega, he oversees a team of eight techs aiding with diagnostic issues, related repairs, equipment installations and adherence to established methods and procedures.
Working beside Co-Owner Cory Yates since 2008, Edgar realized his hands-on passion of the business and helped turn his vision of Alpha & Omega Restaurant Equipment and Repair into a reality. Well-known throughout the Valley by numerous chefs and commercial clients, Edgar is a very valuable part of the equation interfacing with our clients on a day-to-day basis.
Balancing company ownership, along with his profound industry knowledge and daily on-site challenges, Edgar’s most prized priority is his family. A life-long resident of Arizona, he is married with three children, four stepchildren and five dogs.

Adam Martinez - Technician



Adam Martinez was the first tech hired with Alpha & Omega Restaurant Equipment Repair in 2016. Adam is a natural in the repair industry – growing up hands-on beside two uncles that are in the business; one of them being Edgar Martinez, the co-owner of Alpha & Omega. Working previously with Cory at Remington Restaurant Equipment Repair as an entry-level PM (preventative maintenance) technician, Adam took to the work expertly and, through his own motivation and hard work, has since added to his immense skill set. Born and raised in Phoenix, Adam graduated from AAI Trade School, married the love of his life 4 years ago and purchased his first home at the age of 24.

Tom Stefanszky - Technician


Joining the A & O team in April 2019, Tom Stefanszky brings vital industry experience through his certifications in Pitco, Eloma, Angelo Poe, Henny Penny, Concordia Coffee and Electrolux. Tom has been in the restaurant equipment repair business for four years and has quickly become a respected technician for Alpha & Omega Restaurant Equipment Repair.
An Arizona resident for 14 years, Tom currently resides in the West Valley with his wonderful wife and two beautiful children.

Edgar Martinez, Jr. - Planned Maintenance Technician 1 / Apprentice Technician


Growing up with his father’s “do it yourself” mentality and watching Edgar Martinez Sr. grow the company of Alpha & Omega through his passion led Junior to join the team.
He understands the industry and his importance to our clients through our planned maintenance programs. Born and raised in Phoenix, he has in-depth knowledge of Valley locations and the accounts we service.
“Alpha & Omega is not only the place I work, but also my second family. We are here everyday to serve our clients and do it with pride.”

Oscar Martinez - Planned Maintenance Technician 2 / Apprentice Technician


Oscar Martinez was welcomed to our A & O team in June 2019 and we are thrilled to have him aboard. An honor roll student, Oscar has a business education background, attending college for accounting and most recently adding the EPA 608 universal certification to his portfolio. He has transitioned to Alpha & Omega Restaurant Equipment Repair from his previous employer, Amazon – always in the top 10% of employees receiving lots of positive feedback for productivity and quality.
With a family background in mechanical experience, Oscar’s preference is a future in the repair industry. Born and raised in Phoenix, he comes from a hard-working family of five, including his parents, a brother and a sister.

 

Jeromy Howard - Technician


Jeromy Howard comes to Alpha & Omega Repair from San Bernadino California. He started in the repair industry through his family’s business gaining valuable hands-on maintenance experience working in apartment complexes and residential homes. Since then, Jeromy has earned his HVAC license through RSI and has been employed by very reputable companies, bringing extensive experience to A & O. His mission statement – I believe in professionalism and proficiency because my name is on every job I complete – proves his dedication to his profession and we are very happy to have him on board.
Jeromy lives in the Mesa area with his wife Erica and they are proud parents of a daughter and two cats aptly named Fat Cat and Jack.

Barbara Struble - Dispatcher


Barbara Struble has worked in the equipment repair industry since 2009 and met Cory and Edgar while employed at a commercial parts company. In her role as Alpha & Omega’s dispatcher, Barbara is a key component of the company both for clients and the team of techs. She has a unique skill combination of juggling, patience and knowledge that keeps everyone organized while personally gaining respect as a female in a predominantly male industry.
“I absolutely LOVE every aspect of my job….my bosses, my co-workers, our clients, and the “electric” atmosphere of this company. It is a pleasure serving customers who treat me with such respect, and who genuinely appreciate the Alpha & Omega team and the service value we provide. They are my motivation to continue providing impeccable customer service each and every day.”
Born and raised in a small town in Iowa, Barbara moved to Phoenix in 1995. She has a wonderful blended family consisting of 7 grown sons, 2 daughters-in-law, 3 grandsons, and a beloved dog. Her most proud successes have been maintaining a 4.0 GPA while earning two college degrees. Both accomplished simultaneously while raising her sons.

 

Michelle Sileski - Administrative Assistant


Joining Alpha & Omega as our administrative assistant in September of 2019, Michelle Sileski brings over 25 years’ experience in the accounting field. Michelle analyzes, reviews and keeps our internal bookkeeping immaculate, while playing a lead role in the steady growth of our company. She also engages with new client accounts, account collections and works with our entire team from the dispatchers to the techs to the owners on a daily basis.
Hailing from the cool beaches of California, Michelle just recently moved to the Arizona desert and loves it here in Phoenix.

Tammy Hanson - Assistant to Dispatcher


In February of 2020, Tammy Hanson accepted the role of Assistant Dispatcher with Alpha & Omega Restaurant Equipment and Repair. Born and raised in South Dakota, Tammy has been a resident of Arizona for 23 years. Her experience in the equipment service business for the past 26 years brings immense value to our A & O team and we’re excited to implement her industry knowledge into our new expanded dispatching center. In her words, “I strive, and enjoy, to take care of my customers to the best of my ability. It’s a matter of pride and I’m not afraid to go above and beyond to make it happen.”
Outside of work, Tammy enjoys spending time with her family, her two sons and her grandson. She also has a family of furbabies that include a Pug named Abby and three cats – Gibbs, DiNozo and Willie.

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