Waud Capital Partners Acquires Health & Safety Institute (HSI) from The Riverside Company

Health & Safety Institute Acquires SOS Intl, LLC

October 6, 2020

Education

Health & Safety Institute (HSI), a provider of EHS software, training and compliance solutions, has acquired SOS Intl (SOS), a specialist provider of training and compliance services to the electric utilities (distribution, transmission and generation) market. HSI is majority‑owned by Waud Capital Partners, which has supported HSI's growth through add-on acquisitions.

Health & Safety Institute Acquires Donesafe

February 4, 2020

Cloud & SaaS

Health & Safety Institute (HSI), a PE-backed leader in environmental, health and safety (EHS) training and compliance solutions, has acquired Donesafe, a cloud-based safety and compliance management software platform. The acquisition adds Donesafe's EHS, quality, supplier and environmental management capabilities to HSI's training, chemical management and injury-management offerings as part of HSI's growth strategy under Waud Capital Partners.

Health & Safety Institute Acquires Vado, Inc.

November 3, 2020

Education

Health & Safety Institute (HSI), a Waud Capital Partners–backed leader in EHS and workforce development software and training, has acquired e-learning provider Vado, Inc. The acquisition expands HSI's content catalog and enables customers to access workplace safety, compliance, and business skills training from a single provider.

Health & Safety Institute Acquires Martech Media, Inc.

December 4, 2019

Education

Health & Safety Institute (HSI), a provider of EHS software, training and compliance services (majority-owned by Waud Capital Partners), acquired Martech Media, Inc., an industrial technologies training and e‑learning provider. The acquisition adds Martech Media’s interactive industrial curriculum and training professionals to HSI’s platform to expand HSI’s industrial technical training and workforce development capabilities.

The Riverside Company Acquires EMS Safety Services as Add-on to HSI

January 8, 2019

Healthcare Services

The Riverside Company has acquired EMS Safety Services, Inc., a San Clemente, California–based provider of first aid and CPR training, as an add-on to its Health & Safety Institute (HSI) portfolio company. The deal expands HSI’s emergency care training content and strengthens its position in workplace and community first-aid/CPR training.

Broadview Group Invests in Citadel EHS

January 8, 2026

Environmental Services

St. Louis-based private investment firm Broadview Group announced an investment in Citadel EHS, a Glendale, California–based environmental, health, safety, and sustainability (EHS&S) consulting firm. Citadel’s existing leadership will remain in place and the partnership is intended to provide capital and resources to accelerate growth, broaden capabilities, and support geographic expansion; Citizens Capital Markets & Advisory served as exclusive financial advisor to Citadel.