Michael Geosano

President

  • President, OSTS, Inc. Est. 1990
  • Senior Corporate Safety Consultant

Kari Geosano

Vice President

  • Providing OSTS client services since 2003
  • CFO

Ismael Garcia

Consulting Supervisor

  • Providing OSTS client services since 1997
  • Bilingual Consultant
  • GISO and CSO Consultant
  • OSHA 10 & 30 Hour Instructor (Fed and Cal OSHA Construction)
  • Skilled in OSHA Citation defense
  • Certified Forklift Safety Instructor
  • Certified CPR/ First Aid Instructor

Diana Hernandez

Safety Consultant

  • Providing OSTS Client Services since 2008
  • Bilingual Instructor
  • GISO Consultant
  • HAZMAT DOT Instructor
  • NIOSH Certified PFT Technician
  • Certified Forklift Safety Instructor
  • Certified CPR/First Aid Instructor

John Pfeffer

Safety Instructor

  • Providing OSTS client services since 2021
  • Certified CPR/ First Aid Instructor
  • Certified Forklift Safety Instructor

Dennis Sliney

Safety Instructor

  • Providing OSTS client services since 2016
  • Confined Space Instructor
  • Certified Hazardous Materials Instructor
  • CSTI Outreach Instructor Trainer

Alejandro Mendoza

Safety Instructor

  • Providing OSTS client services since 2017
  • GISO Instructor
  • Certified CPR/ First Aid Instructor
  • Certified Forklift Safety Instructor

Erwin Preciado

Safety Instructor

  • Providing OSTS client services since 2017
  • GISO Instructor
  • Certified CPR/ First Aid Instructor
  • Certified Forklift Safety Instructor

Abel Carranza

Safety Instructor

  • Providing OSTS client services since 2023
  • Certified CPR/First Aid Instructor
  • Certified Forklift Safety Instructor

Jose Guerrero

Safety Instructor

  • Providing OSTS client services since 2024
  • Certified CPR/First Aid/AED/BBP Instructor

Greg Bullock

Senior Business Development

  • Providing OSTS client services since 2000
  • Senior Business Development Representative
  • Certified CPR / First Aid Instructor

Kristina Urgino

Senior Business Development

  • Providing OSTS client services since 2005
  • Senior Business Development Representative

Sue Hughes

Business Operations Coordinator

  • Providing OSTS client services since 2005
  • Business Operation Coordinator

Bevi Edlund

Marketing

  • Providing OSTS client services since 2020
  • Develops and publishes blogs, social media, and all other marketing

Amanda Koenig

Office Support Coordinator

  • Providing OSTS client services since 2023