Citadel EHS Acquires Aurora Industrial Hygiene

Broadview Group, a St. Louis-based investment firm, announced on June 1, 2026, that its portfolio company, Citadel EHS, has acquired Aurora Industrial Hygiene, a California-based firm specializing in industrial hygiene services. The financial terms of the transaction were not disclosed. This acquisition is part of Citadel EHS's strategy to enhance its position in the environmental, health, safety, and sustainability consulting sector, while also expanding its capabilities and geographic reach across California.

Aurora Industrial Hygiene, founded in 1996 by Certified Industrial Hygienists Karen Shockley and Grace Rinck, has built a strong reputation for delivering high-quality environmental health and safety consulting services. The firm operates offices in San Diego and Los Angeles and provides a comprehensive range of services, including industrial hygiene, OSHA compliance, hazardous materials consulting, and indoor air quality assessments. The acquisition of Aurora is expected to bolster Citadel's existing services and enhance its ability to serve clients in various sectors, including commercial, industrial, healthcare, education, government, and construction.

The strategic rationale behind this acquisition lies in the complementary strengths of both firms. Aurora's technical expertise and established client relationships align with Citadel EHS's mission to provide top-tier environmental consulting services. The integration of Aurora's experienced team of Certified Industrial Hygienists, Certified Safety Professionals, and other specialists into Citadel's Industrial Hygiene & Safety practice is anticipated to create synergies that will benefit clients and enhance service delivery across the region.

In the broader context, the environmental consulting sector is experiencing growth driven by increasing regulatory scrutiny and a heightened focus on sustainability. As organizations seek to navigate complex compliance requirements and improve their operational safety, the demand for specialized consulting services is expected to rise. This acquisition positions Citadel EHS to capitalize on these trends by expanding its service offerings and geographic footprint, particularly in California, a key market for environmental consulting.

Overall, the acquisition of Aurora Industrial Hygiene by Citadel EHS reflects a strategic move to strengthen market presence and enhance service capabilities in a competitive industry. As the environmental consulting landscape continues to evolve, this transaction underscores the importance of strategic partnerships in delivering comprehensive solutions to clients while maintaining a commitment to quality and responsiveness.