Private equity firm Webster Capital acquired travel nurse staffing firm Emerald Health Services. The Los Angeles-based healthcare staffing provider was founded in 2002 by Mark Stagen, who is also a founder and former president of the National Association of Travel Healthcare Organizations.

“For over 15 years, Emerald has been a true love of mine,” Stagen said. “Though I will miss the team, the clients and the business, I’m very excited to see the amazing things Emerald will accomplish with Webster Capital and the amazing Emerald management team.”

Emerald ranked No. 33 on Staffing Industry Analysts’ 2017 list of largest healthcare staffing firms.

Waltham, Mass.-based Webster has a healthcare staffing portfolio that also includes Cirrus Medical Staffing, a national provider of travel nurse and allied staffing it acquired in October; and PharmaLogics Recruiting, a provider of recruiting solutions for life sciences companies worldwide.

“We are very excited to partner with Webster for our next chapter of growth,” Emerald Health Services’ CEO and President Mark Siegel said. “The Webster team brings a wealth of experience in healthcare services and shares our vision for growth, commitment to core values and drive for innovation.”