Meet Our Team


Ted A Gribble

  • Registered Agricultural Engineer
  • Bachelor of Architecture Structures from Texas Tech University
  • Master’s in Engineering Management from Portland State University
  • With Five-G since 1986
  • Accomplished seminar speaker
  • Principal and Lead Dairy Engineer

 


Donald L Gribble

  • Registered Professional/Mechanical Engineer
  • Bachelor’s in Mechanical Engineering from Texas Tech University
  • Master’s in Electrical Engineering from Oregon State University
  • With Five-G since 1995
  • Recognized leader in new dairy development in emerging countries
  • Principal and Lead Systems Engineer

 


Glenn Roberts

  • Five-G’s Dairy Project Manager
  • Bachelor of Science in Construction Engineering & Tech from Texas Tech University
  • Masters of Science in Management from Lesley University
  • Twenty years in the United States Air Force
  • With Five-G since 2008
  • Manager of Design & Development Processes and supervisor of all Five-G projects

 


Walterio Olivas

  • Registered Professional Engineer
  • Bachelor’s in Civil Engineering from Texas A&M Kingsville
  • Bilingual and coordinates all matters in Central and North America
  • With Five-G since 2008
  • Structural Lead on all Advanced Engineering projects

 

 


Eric Garner

  • Certified CAD Draftsman from Paris Junior College
  • Lead CAD Tech and our lead Earthwork/Civil Works Designer
  • With Five-G since 1999
  • Our CAD expert extraordinaire, highly involved in every project we produce

 

 

 


Xia “Claire” Wang

  • Bachelor’s in Engineering & Civil Engineering from Beijing University of Tech
  • Master’s in Engineering Construction & Civil Engineering from Beijing University of Tech
  • Over 10 years of experience in concrete construction designing
  • Specializing in dairy engineering & design since 2007
  • Brings a lot of dairy experience and we are excited to have her on our team

 

 


Chad Bird

  • Certified CAD Draftsman from Paris Junior College
  • Fifteen years with Five-G
  • Our lead designer for mechanical, electrical, and plumbing
  • Parlor design expert focused on total systems integration

Carlos Vera

  • Certified CAD Draftsman from Paris Junior College
  • Leader of our 3D design products
  • Joined the Five-G team in 2017
  • He needs another point too, I think

Bethany Bennett

  • Almost 20 years of experience in office and administrative support
  • Touches every project and process we perform, always striving to improve our products
  • Instrumental in ensuring Five-G tasks and business is conducted professionally and on time
  • Joined the Five-G team in 2018

Vicki Frankland

  • Marketing and event specialist
  • Joined the Five-G team in 2018
  • Conducts all planning, negotiation and logistics of all shows, seminars and advertising venues
  • Over 20 years of event planning experience

Petronio “Peter” Dumalagen

  • Bachelor’s in Civil Engineering from University of San Jose, Philippines
  • Over 27 years of experience in the construction industry
  • Supervises every phase of on-site construction
  • With Five-G since 2013
  • Extensive on-site dairy construction experience in the Middle East, Asia and North Africa

 

 


Steven McDonald

  • Bachelor’s in Animal Science from Sam Houston State University
  • Over 18 years of experience in the construction industry
  • Proficient in equipment operation and repair
  • With Five-G since 2013
  • Dairy Construction Superintendent with 25 years of experience in the agricultural industry

 

 


Shane Grissom

  • Skilled in AutoCAD and GPS equipment, including the Advanced Total Station
  • Over 12 years of design and on-site construction and inspection experience
  • Specializing in underground service
  • Expert in advanced cow cooling and other cow support systems
  • Dairy System Designer

 

 


Martha Fransiska “Sisca” Batubara

  • Degree in Economic Management from Nommensen University in Indonesia
  • Joined our team in 2015 as an administrative assistant on an active construction site.
  • Our Logistics Specialist, facilitating our design and construction activities in Asia.
  • Consummate professional that we are lucky to have on our team

 

 

 


Esperanza “Fe” Robles Dumalagen

  • Joined our team in 2017 as an Administrative Assistant
  • Majored in Economics at the University of the East in Manila
  • Taught English for 14 years in Saudi Arabia.
  • Assists all on-site financial activities, monitors the material deliveries of animal equipment, provides logistical support and documents all of the construction on site
  • An expert at her activities and is a vital asset to her assigned projects.