[2][5][6][7] The company places employees at all levels in various sectors including financial services, information technology, and law.

[9] Eventually "Kelly girl" became a widely used term for a temporary worker, regardless of company affiliation or gender.

By 1966, the company had expanded to include industrial and technical services divisions and was renamed Kelly Services, Inc.[12] In 2008, Lynn Noyes was awarded $6.5 million in damages from Kelly Services for failing to promote her because she was not part of the Fellowship of Friends cult.

[13] In 2015, the company reported 8,100 employees, $5.5 billion in revenue,[2][5] making it one of the world's largest staffing firms.

[1] In May 2024, Kelly Services acquired Motion Recruitment Partners for $425 million in cash.