Our Team
BILL MARTINAK Owner / President
- Owner since 2004
- Over 35 years in the construction industry
Cell Number: 503-931-5261
Email: bill@emeryandsons.com
TREVOR SPIRES General Manager / Corporate Secretary, Treasurer
- Employed with Stettler Supply Company since 2008
- Bachelor Degree: Construction Engineering Management
- Over 25 years in the construction industry
Cell Number: 503-507-9884
Email: trevors@stettlersupply.com
BOB STANFORD Drip Irrigation Technical Service Provider / Sales
- Employed with Stettler Supply Company since 1980
- Over 30 years experience in Irrigation Design
- Bachelor Degree, Certified Irrigation Designer, TSP – NRCS
- 2006-08 President, Sunset Chapter OAN
Cell Number: 503-580-9614
Email: bobs@stettlersupply.com
VAL TANCREDI Irrigation Systems Design & Sales
- Employed with Stettler Supply Company since 1997
- Bachelor of Landscape Architecture
- Over 35 years Irrigation Industry Experience
- Manufacturer training regarding sprinklers, drip, pivots, pumps, system design, product application, troubleshooting, backflow testing.
- Recipient of OAN’s Presidents 5 Star Performance Award and a Distinguished Member of Horticultural Allied Trade. Past President and Board Member of OAN Willamette Chapter, MCSWCD Budget Committee Chairman, Horticultural Advisory Council and Adjunct Faculty Member for Chemeketa Community College
Cell Number: 503-559-1652
Email: valt@stettlersupply.com
PAUL WALTHER Irrigation Systems Design & Sales
- Employed with Stettler Supply Company since 2005
- Bachelor Degree in Crop Science
- Over 20 years experience in agriculture including Ag Sales, Farm Management, and Consulting for Irrigation, Fertility and Pest Management
- Certified Crop Advisor, License # 36514
Cell Number: 503-302-7545
Email: paulw@stettlersupply.com
ERIC ROSS Operations Manager
- Employed with Stettler Supply Company since 2007
- 9 years in residential and agricultural pump service
Cell Number: 503-949-0496
Email: ericr@stettlersupply.com
GARY CASWELL Senior Agricultural Field Technician
- Employed with Stettler Supply Company since 1989
- Oregon Limited Maintenance Electrical License, Washington State Electrical Administrative License, Washington State Limited Plumbers License, Advanced Training at Reinke Irrigation School, OSHA Training for Safety, and many manufacturer sponsored technical classes
Cell Number: 503-510-9618
ROSS MEYER Project Manager / Estimator
- Employed with Stettler Supply Company since 2007
- Bachelor Degree in Civil Engineering
- Over 10 years experience in the construction industry
Cell Number: 503-779-9993
Email: rossm@stettlersupply.com
BRENNON AHO Project Manager/Estimator
- Employed with Stettler Supply Company since 2010
- Bachelor Degree in Construction Engineer Management
- Over 10 years experience in the construction industry
Cell Number: 503-580-9661
Email: brennona@stettlersupply.com
JASON KERNES Water Quality Manager
- Employed with Stettler Supply Company since 2006
- Over 15 years experience specializing in the field of domestic & light commercial water treatment and purification applications including service, repairs, designs, testing, installations, etc.
- Member of Water Quality Association
- Completed Pentair Water Training Courses.
Cell Number: 503-949-0174
Email: jasonk@stettlersupply.com
ANDREY KAYA Irrigation Systems Design & Sales
- Employed with Stettler Supply Company since 2011
- Over 9 years of Irrigation experience
- Certified Irrigation Designer, TSP-NRCS
Cell Number: 503-779-4208
Email: andreyk@stettlersupply.com





