The leading global outsourcing companies are venturing into new grounds, combined with financial effectiveness, can provide any organization with an increased competitive edge by going lean and saving money.

“With a membership base of 120,000 members and affiliates worldwide, IAOP (International Association of Outsourcing Professionals), currently is the most prestigious association for organizations and individuals involved in outsourcing and shared services.”

Every year, IAOP publishes a list of the Top 100 fastest-growing companies in global outsourcing. The scores and rankings are determined by an independent panel of judges. The ratings are based on characteristics of size, growth rate, customer experience, skills, and management capabilities.

In 2014, according to the IAOP association, the top 5 outsourcing companies in the world are European and US-based companies.

Examples of leading outsourcing companies

1. ISS

ISS, a Danish company founded in 1901. Key operations in India and Australia. The company counts on its century-long traditions in providing excellence and quality service. Some of its outsourcing relationships are 40 years long (with the DSB, Danish Railways) and the company is committed to preserving and nourishing the relationships it has with its clients, while providing high-quality services.


Accenture is a Fortune Global 500 company it emerged as a division of the American accounting firm Arthur Anderson, eventually becoming a separate company with headquarters in Dublin Ireland. It is one of the world’s leading organizations in the fields of management consulting, technology and outsourcing services, boasting net revenues of $28.6 billion for fiscal year 2013.


CBRE is an American commercial real estate company with headquarters in Los Angeles, California which also provides outsourcing services with particular strengths in customer references, company recognitions, employee management, and executive leadership.

4. Kelly Outsourcing and Consulting group

Headquartered in Troy, Michigan, Kelly specialized in the fields of Recruitment Process Outsourcing (RPO) and Consulting and Business Process Outsourcing (BPO). The company focuses on building expertise and an innovative approach to leadership and recruitment.“Our recognition on the Global Outsourcing 100 list for the third consecutive year demonstrates our commitment to enhancing the delivery of consultative outsourced solutions focused to meet the talent and operational challenges our clients face,” said Teresa Carroll, Senior Vice President and General Manager, KellyOCG.

5. Colliers international

Colliers is an international real estate giant, based in Seattle, WA. It is the second company with an emphasis on the real estate in this year’s IAOP rankings. It also has shown the highest “jump” in the rankings, moving from 17th place in 2013 to the top 5.