Accelerated Remediation Company (aRc) is a joint-venture between Portage, Inc., and Shaw Environmental Infrastructure, Inc. aRc is performing environmental remediation work in New Mexico, Ohio, and New York.

Portage Staffing Services is a wholly-owned subsidiary of Portage Inc. Formed in 2006, PSS provides staff augmentation to a variety of customers including CH2M-Washington Group, Inc., and Bechtel BWXT Idaho, LLC. PSS provides technical support in the areas of engineering, waste generator services, chemical management, supply chain management, and technical publications. PSS is based in Idaho Falls, Idaho.