Citadel EHS, a leading environmental, health, safety, and sustainability consulting firm headquartered in Southern California, announced the acquisition of Aurora Industrial Hygiene, a California-based industrial hygiene and occupational safety consulting firm with offices in San Diego and Los Angeles.
Founded in 1996 by Certified Industrial Hygienists Karen Shockley and Grace Rinck, Aurora Industrial Hygiene has spent nearly three decades building a reputation for delivering environmental health and safety consulting services throughout California. The company provides industrial hygiene, occupational health, OSHA compliance, hazardous materials consulting, asbestos and lead services, indoor air quality assessments, exposure monitoring, and workplace safety support for clients across commercial, industrial, healthcare, education, government, and construction sectors.
As part of the transaction, Aurora’s team of Certified Industrial Hygienists, Certified Safety Professionals, Certified Asbestos Consultants, and environmental health and safety specialists will join Citadel EHS’s Industrial Hygiene & Safety practice. The acquisition is expected to strengthen Citadel’s technical expertise while expanding its regional footprint across California.
Citadel EHS said the deal aligns with its strategy of enhancing client service and expanding the breadth of environmental, health, safety, and sustainability solutions available to customers. The company also highlighted Aurora’s long-standing reputation for technical excellence, integrity, and strong client relationships.
Aurora founders Karen Shockley and Grace Rinck said they sought a partner that would preserve the firm’s values while creating additional opportunities for employees and clients. They noted that joining Citadel will provide access to expanded resources and capabilities while maintaining the personalized service Aurora clients have come to expect.
Citadel EHS is a multidisciplinary environmental, health, safety, and sustainability consulting firm that provides industrial hygiene, environmental compliance, engineering, building sciences, safety consulting, and ESG services to public and private sector clients nationwide. The company is backed by the Broadview Group, a St. Louis-based investment and operating company focused on supporting growth-oriented businesses.
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“The addition of Aurora Industrial Hygiene represents a strategic and cultural fit for Citadel. This marks an important step in our journey in providing our clients with exceptional client service and will expand our technical knowledge and capabilities to assist our clients in their efforts to achieve their environmental, health, safety, and sustainability goals and compliance with regulatory standards. Karen and Grace built an outstanding firm known for technical excellence, integrity, and long-standing client relationships. We are excited to welcome Aurora’s talented team and continue building on that legacy together. We are grateful for everyone who worked to complete this transaction, and we especially thank our partner Broadview Group for their continued support and commitment to our share vision.”
Loren Witkin, Chief Executive Officer, Citadel EHS
“We were looking for the right home for our people, our clients, and the work we’ve built our careers around. Citadel shares our commitment to quality, responsiveness, and doing the work the right way. Joining Citadel allows Aurora’s team and clients to benefit from expanded resources and broader capabilities while maintaining the personalized service they know and trust.”
Karen Shockley and Grace Rinck, Founders, Aurora Industrial Hygiene
