H.I.G. Capital acquired Mainline Information Systems, a provider of IT solutions, including staffing. Mainline is based in Tallahassee, Florida, with revenue of more than $1 billion.

The deal was announced Dec. 5.

“We have been very impressed by what [CEO Jeff Dobbelaere] and the rest of the management team have built and look forward to helping the company further accelerate its significant growth potential through organic initiatives and acquisitions,” Aaron Tolson, managing director at H.I.G., said in a press release.

H.I.G. also owns Oxford Global Resources, which it acquired from ASGN Inc. in August 2021 in a $525 million deal. Oxford ranks No. 35 on SIA’s list of largest IT staffing providers in the US.

Mainline Information Systems was founded in 1989. With the acquisition, plans call for Mainline’s management team — headed by Dobbelaere — to continue leading the company.

SIA has reached out for more information.

H.I.G. Capital has made other acquisitions in the workforce ecosystem space over the past few years, in addition to Mainline and Oxford Global Resources.

In 2022, it acquired Barton & Associates Inc., a locum tenens provider based in Peabody, Massachusetts. That same year, H.I.G. portfolio company Milestone Technologies acquired Software Management Consultants Inc., a Glendale, California-based provider of IT services and staffing.

More recently in April 2023, H.I.G. announced the acquisition of a majority stake in Office People GmbH, a personnel management and temporary staffing provider based in Germany.