Our Business Network

Corestaff is part of Impellam Group, one of the largest staffing companies in the world, and a leading provider of managed services and specialist staffing expertise in the UK and North America.
Our collective vision is to be the world’s most trusted staffing company—trusted by our people, our customers and our investors in equal measure. We’re working towards that vision along with our affiliate companies: provides professional staffing in Marketing & Creative, Information Technology and Telecommunications. We address immediate and long-term workforce needs—at any scale—through a single access point. For more information, visit the website.

SRG Woolf

SRG Woolf delivers excellence in staffing for the biotechnology, medical device and pharmaceutical industries as well as Contract Research Organizations (CROs), Site Management Organizations (SMOs) and  Institutional Review Boards (IRBs), with access to a vast network of experienced clinical research professionals. For more information, visit the SRG Woolf website.

Guidant Group

Guidant Group provides high quality, tailored Managed Service Provider (MSP) and Recruitment Process Outsourcing (RPO) solutions to leading companies seeking outsourced recruitment solutions. For more information, visit the Guidant Group website.


  • 2nd largest staffing firm in the UK
  • 12th largest staffing firm worldwide
  • 90,000+ employees at work each week
  • Balanced business portfolio across
  • Services that cross geographies and industries