HMS, Inc. incorporated in Modesto, California, and now also has offices in Pleasant Hill, Fresno, and  Bakersfield. HMS, Inc. provides a broad range of industrial hygiene services, but specializes in the field of asbestos and lead consultation, contract and specification writing for abatement, management of abatement projects, and indoor air quality evaluations. HMS, Inc. is a leader in assisting school districts to maintain compliance with the EPA AHERA regulation which mandates asbestos management in schools.

In addition to construction-related activities, HMS, Inc. offers training courses for asbestos (accredited and non-accredited), lead, and mold, as well as construction-related awareness training for architects, contractors and construction managers to provide insight into potential issues on projects.