Andrew Williams

TEKsystems, Inc. provides applications, infrastructure and communications staffing services. It offers enterprise analytics and reporting, network architecture and engineering, quality assurance and software testing, and systems integration and optimization. The firm caters communications, energy, financial services, government, healthcare and IT services sectors. The company was founded in 1994 and is headquartered in Hanover, MD.

Allegis Group, Inc. provides staffing and recruiting services. Its services include technical, professional, and industrial staffing; IT staffing and consulting; managerial, professional, and accredited accounting and financial staffing; managed services, recruitment process outsourcing, and human capital consulting; sales and marketing outsourcing solutions; human resources business process outsourcing; human capital consulting and workforce management staffing; and search and workforce services. The company was founded by Stephen Bisciotti and James C. Davis in 1983 and is headquartered in Hanover, MD.

Aston Carter Ltd. provides recruitment services to the information technology industry. It offers accounting and finance, management consultany, change and transformation, operations and compliance. The company was founded in 1997 and is headquartered in London, the United Kingdom.

Part of Allegis Group Holdings BV, Allegis Group (UK) Holdings II Ltd. functions as an investment holding British company. The company is based in Bracknell, UK and was founded in 2011.