Meet Mark Close
Hello, I am Mark Close of the Close Group and serve as the Health and Safety consultant. As a certified industrial hygienist (CIH) and I bring over 25 years of industrial hygiene and safety compliance expertise to our clients.

Find out more about what to expect from a certified industrial hygienist.

A strong health and safety program is fundamental to an organization and a lack of one can cause a decrease in worker productivity, high turnover, increased workers compensation claims. Let the Close Group help you build a health and safety program that works for your organization.

Education Training and Experience

  • Master of Science in Industrial Hygiene
  • Certified Industrial Hygienist (CIH)
  • AHERA Asbestos Building Inspector
  • 25+ years experience helping clients achieve OSHA/WISHA compliance

Blog: Health and Safety Matters




Our Approach
We believe we can best serve our customers by approaching each project as a collaborative venture and partnership to achieve desired results. Our health and safety services include:

  • Accident Investigation
  • Airborne Contaminant Assessment
  • Asbestos Management
  • Confined Space/Rescue Training
  • Expert Witness
  • Emergency Response/ Hazardous Waste Audit, Development and Training
  • Health & Safety Program Development
  • Hearing Conservation/Noise Surveys
  • Job Hazard Analysis
  • Lead Fixed Industry and Construction Compliance
  • Jobsite Health & Safety Audits
  • Respiratory Protection Program Compliance Audit
  • Underground Construction Field Audit and Program Review
  • Customized Training Development and Delivery
Client References
  • Birmingham Steel
  • American Presidents Line
  • Jensen Boat
  • Delta Marine
  • Genie Industries
  • Tri State Construction
  • Scarsella Brothers Construction
  • Wilder Construction
  • University Mechanical Contractors
  • Sequoyah Electrical Contractor
  • Viox Corporation
  • CH2M Hill
  • Howard S. Wright Construction
  • McNally Tunneling
  • Northwest Boring
  • Nuprecon
  • Seattle Boiler Works
  • Johnson Controls
  • Lafarge North America Inc.
  • Bellingham, Maple Valley, Seattle, WSU Fire Departments
  • Washington State Fire Training Academy
  • Edmonds Police Department
  • University of Washington
  • Port of Seattle
  • Highline Hospital

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