OSHA compliance audits

Aurora Industrial Hygiene, Inc. was formed in 1996 by a group of professionals to provide industrial hygiene and safety services. The firm offers industrial hygiene surveys, safety and risk management, asbestos and lead management, indoor air quality investigations, and training. It is a Women, Minority, and Service Disabled Veteran-Owned Small Business with offices in San Diego and Signal Hill, California. Effective May 30, 2026, Aurora joined Citadel EHS.

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abatement designair monitoringasbestos and lead inspectionsconfined space auditsergonomic analysesindoor air quality investigationsindustrial hygiene surveysnoise monitoringrisk assessmentssafety auditstraining

HGS Engineering, Inc. is a Service-Disabled, Veteran-Owned Small Business (SDVOSB) and professional services consulting firm providing environmental engineering support to federal, state, local, and private clients. Its core competency is environmental services, offered since 1998, and it also provides engineering, laboratory, health and safety, emergency management, facilities management, and information technology services.

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asbestos and lead paint surveys and removalcommissioning and retrocommissioningcompliance assistance and assessmentemergency preparednessenergy managementenvironmental engineeringindustrial hygiene testingLEED facility retro commissioningmicrobiological analysismulti-disciplinary engineeringpermit review and applicationplan developmentproject managementroot cause analysistraining